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	<id>http://www.fsdeveloper.com/wiki/index.php?action=history&amp;feed=atom&amp;title=XML%3A_Units%3A_How_FS_handles_Units</id>
	<title>XML: Units: How FS handles Units - Revision history</title>
	<link rel="self" type="application/atom+xml" href="http://www.fsdeveloper.com/wiki/index.php?action=history&amp;feed=atom&amp;title=XML%3A_Units%3A_How_FS_handles_Units"/>
	<link rel="alternate" type="text/html" href="http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;action=history"/>
	<updated>2026-05-01T17:34:50Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.41.1</generator>
	<entry>
		<id>http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=10468&amp;oldid=prev</id>
		<title>Rpmc at 16:27, 3 March 2017</title>
		<link rel="alternate" type="text/html" href="http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=10468&amp;oldid=prev"/>
		<updated>2017-03-03T16:27:23Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:27, 3 March 2017&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l36&quot;&gt;Line 36:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 36:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;A:Var Example 2&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;A:Var Example 2&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so, for that aircraft, with a full left main tank, Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &#039;&#039;gallons&#039;&#039;), then it recognizes &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;this &lt;/del&gt;as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so, for that aircraft, with a full left main tank, Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &#039;&#039;gallons&#039;&#039;), then it recognizes &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;gallons&#039;&#039; &lt;/ins&gt;as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, if Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;pounds&amp;#039;&amp;#039;), then it assumes this is a &amp;#039;&amp;#039;weight&amp;#039;&amp;#039; variable. The default weight unit is kilogram, so Flight Sim assumes that the 0.458038 stored in memory represents 0.458038 &amp;#039;&amp;#039;&amp;#039;kg&amp;#039;&amp;#039;&amp;#039;. When it is asked to covert that to pounds, it returns 1.0098 (0.458038 kg=1.0098 pounds), or in other words, (A:FUEL TANK LEFT MAIN QUANTITY, pounds) = 1.0098.  This value isn&amp;#039;t intuitive and has no meaning because A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, not a weight variable.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, if Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;pounds&amp;#039;&amp;#039;), then it assumes this is a &amp;#039;&amp;#039;weight&amp;#039;&amp;#039; variable. The default weight unit is kilogram, so Flight Sim assumes that the 0.458038 stored in memory represents 0.458038 &amp;#039;&amp;#039;&amp;#039;kg&amp;#039;&amp;#039;&amp;#039;. When it is asked to covert that to pounds, it returns 1.0098 (0.458038 kg=1.0098 pounds), or in other words, (A:FUEL TANK LEFT MAIN QUANTITY, pounds) = 1.0098.  This value isn&amp;#039;t intuitive and has no meaning because A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, not a weight variable.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Rpmc</name></author>
	</entry>
	<entry>
		<id>http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=10467&amp;oldid=prev</id>
		<title>Rpmc at 03:54, 2 March 2017</title>
		<link rel="alternate" type="text/html" href="http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=10467&amp;oldid=prev"/>
		<updated>2017-03-02T03:54:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 22:54, 1 March 2017&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l38&quot;&gt;Line 38:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 38:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so, for that aircraft, with a full left main tank, Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;gallons&amp;#039;&amp;#039;), then it recognizes this as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so, for that aircraft, with a full left main tank, Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;gallons&amp;#039;&amp;#039;), then it recognizes this as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, if Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &#039;&#039;pounds&#039;&#039;), then it assumes this &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;as &lt;/del&gt;a &#039;&#039;weight&#039;&#039; variable. The default weight unit is kilogram, so Flight Sim assumes that the 0.458038 stored in memory represents 0.458038 &#039;&#039;&#039;kg&#039;&#039;&#039;. When it is asked to covert that to pounds, it returns 1.0098 (0.458038 kg=1.0098 pounds), or in other words, (A:FUEL TANK LEFT MAIN QUANTITY, pounds) = 1.0098.  This value isn&#039;t intuitive and has no meaning because A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, not a weight variable.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, if Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &#039;&#039;pounds&#039;&#039;), then it assumes this &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is &lt;/ins&gt;a &#039;&#039;weight&#039;&#039; variable. The default weight unit is kilogram, so Flight Sim assumes that the 0.458038 stored in memory represents 0.458038 &#039;&#039;&#039;kg&#039;&#039;&#039;. When it is asked to covert that to pounds, it returns 1.0098 (0.458038 kg=1.0098 pounds), or in other words, (A:FUEL TANK LEFT MAIN QUANTITY, pounds) = 1.0098.  This value isn&#039;t intuitive and has no meaning because A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, not a weight variable.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Rpmc</name></author>
	</entry>
	<entry>
		<id>http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=10434&amp;oldid=prev</id>
		<title>Rpmc: Rpmc moved page Units: How FS handles Units to XML: Units: How FS handles Units</title>
		<link rel="alternate" type="text/html" href="http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=10434&amp;oldid=prev"/>
		<updated>2016-12-26T16:03:12Z</updated>

		<summary type="html">&lt;p&gt;Rpmc moved page &lt;a href=&quot;/wiki/index.php/Units:_How_FS_handles_Units&quot; class=&quot;mw-redirect&quot; title=&quot;Units: How FS handles Units&quot;&gt;Units: How FS handles Units&lt;/a&gt; to &lt;a href=&quot;/wiki/index.php/XML:_Units:_How_FS_handles_Units&quot; title=&quot;XML: Units: How FS handles Units&quot;&gt;XML: Units: How FS handles Units&lt;/a&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:03, 26 December 2016&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en-GB&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Rpmc</name></author>
	</entry>
	<entry>
		<id>http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9924&amp;oldid=prev</id>
		<title>Rpmc at 01:40, 12 May 2015</title>
		<link rel="alternate" type="text/html" href="http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9924&amp;oldid=prev"/>
		<updated>2015-05-12T01:40:20Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 20:40, 11 May 2015&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l38&quot;&gt;Line 38:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 38:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so, for that aircraft, with a full left main tank, Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;gallons&amp;#039;&amp;#039;), then it recognizes this as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so, for that aircraft, with a full left main tank, Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;gallons&amp;#039;&amp;#039;), then it recognizes this as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, if Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &#039;&#039;pounds&#039;&#039;), then it assumes this as a &#039;&#039;weight&#039;&#039; variable. The default weight unit is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;kilograms&lt;/del&gt;, so Flight Sim assumes that the 0.458038 stored in memory represents 0.458038 &#039;&#039;&#039;kg&#039;&#039;&#039;. When it is asked to covert that to pounds, it returns 1.0098 (0.458038 kg=1.0098 pounds), or in other words, (A:FUEL TANK LEFT MAIN QUANTITY, pounds) = 1.0098.  This value isn&#039;t intuitive and has no meaning because A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, not a weight variable.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, if Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &#039;&#039;pounds&#039;&#039;), then it assumes this as a &#039;&#039;weight&#039;&#039; variable. The default weight unit is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;kilogram&lt;/ins&gt;, so Flight Sim assumes that the 0.458038 stored in memory represents 0.458038 &#039;&#039;&#039;kg&#039;&#039;&#039;. When it is asked to covert that to pounds, it returns 1.0098 (0.458038 kg=1.0098 pounds), or in other words, (A:FUEL TANK LEFT MAIN QUANTITY, pounds) = 1.0098.  This value isn&#039;t intuitive and has no meaning because A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, not a weight variable.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Rpmc</name></author>
	</entry>
	<entry>
		<id>http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9923&amp;oldid=prev</id>
		<title>Rpmc at 01:39, 12 May 2015</title>
		<link rel="alternate" type="text/html" href="http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9923&amp;oldid=prev"/>
		<updated>2015-05-12T01:39:18Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 20:39, 11 May 2015&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l36&quot;&gt;Line 36:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 36:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;A:Var Example 2&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;A:Var Example 2&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so, for that &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;plane &lt;/del&gt;with a full left main, Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &#039;&#039;gallons&#039;&#039;), then it recognizes this as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so, for that &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;aircraft, &lt;/ins&gt;with a full left main &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;tank&lt;/ins&gt;, Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &#039;&#039;gallons&#039;&#039;), then it recognizes this as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, if Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;pounds&amp;#039;&amp;#039;), then it assumes this as a &amp;#039;&amp;#039;weight&amp;#039;&amp;#039; variable. The default weight unit is kilograms, so Flight Sim assumes that the 0.458038 stored in memory represents 0.458038 &amp;#039;&amp;#039;&amp;#039;kg&amp;#039;&amp;#039;&amp;#039;. When it is asked to covert that to pounds, it returns 1.0098 (0.458038 kg=1.0098 pounds), or in other words, (A:FUEL TANK LEFT MAIN QUANTITY, pounds) = 1.0098.  This value isn&amp;#039;t intuitive and has no meaning because A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, not a weight variable.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, if Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;pounds&amp;#039;&amp;#039;), then it assumes this as a &amp;#039;&amp;#039;weight&amp;#039;&amp;#039; variable. The default weight unit is kilograms, so Flight Sim assumes that the 0.458038 stored in memory represents 0.458038 &amp;#039;&amp;#039;&amp;#039;kg&amp;#039;&amp;#039;&amp;#039;. When it is asked to covert that to pounds, it returns 1.0098 (0.458038 kg=1.0098 pounds), or in other words, (A:FUEL TANK LEFT MAIN QUANTITY, pounds) = 1.0098.  This value isn&amp;#039;t intuitive and has no meaning because A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, not a weight variable.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Rpmc</name></author>
	</entry>
	<entry>
		<id>http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9922&amp;oldid=prev</id>
		<title>Rpmc at 09:23, 11 May 2015</title>
		<link rel="alternate" type="text/html" href="http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9922&amp;oldid=prev"/>
		<updated>2015-05-11T09:23:50Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 04:23, 11 May 2015&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l116&quot;&gt;Line 116:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 116:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  DENSITY: pound per gallon&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  DENSITY: pound per gallon&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The system variable (A:Fuel weight per gallon, pounds per gallon) returns 6 in FS9, but the units are not valid in FSX, so the variable returns 0.  This is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;actually &lt;/del&gt;a handy phenomenon, in that the difference can be exploited to distinguish between FS9 and FSX simulations. See wiki &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;on&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The system variable (A:Fuel weight per gallon, pounds per gallon) returns 6 in FS9, but the units are not valid in FSX, so the variable returns 0.  This is a handy phenomenon, in that the difference can be exploited to distinguish between FS9 and FSX simulations. See wiki&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&#039;XML: Refreshing Panels in FS9 &amp;amp; FSX&#039;&#039;&#039;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;for an example application.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Non-Numerical value&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Non-Numerical value&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Rpmc</name></author>
	</entry>
	<entry>
		<id>http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9921&amp;oldid=prev</id>
		<title>Rpmc at 09:19, 11 May 2015</title>
		<link rel="alternate" type="text/html" href="http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9921&amp;oldid=prev"/>
		<updated>2015-05-11T09:19:59Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 04:19, 11 May 2015&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l116&quot;&gt;Line 116:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 116:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  DENSITY: pound per gallon&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  DENSITY: pound per gallon&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The system variable (A:Fuel weight per gallon, pounds per gallon) returns 6 in FS9, but the units are not valid in FSX, so the variable returns 0.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The system variable (A:Fuel weight per gallon, pounds per gallon) returns 6 in FS9, but the units are not valid in FSX, so the variable returns 0. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; This is actually a handy phenomenon, in that the difference can be exploited to distinguish between FS9 and FSX simulations. See wiki on&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Non-Numerical value&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Non-Numerical value&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Rpmc</name></author>
	</entry>
	<entry>
		<id>http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9920&amp;oldid=prev</id>
		<title>Rpmc at 09:16, 11 May 2015</title>
		<link rel="alternate" type="text/html" href="http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9920&amp;oldid=prev"/>
		<updated>2015-05-11T09:16:21Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 04:16, 11 May 2015&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l36&quot;&gt;Line 36:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 36:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;A:Var Example 2&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;A:Var Example 2&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &#039;&#039;gallons&#039;&#039;), then it recognizes this as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, for that plane with a full left main, &lt;/ins&gt;Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &#039;&#039;gallons&#039;&#039;), then it recognizes this as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, if Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;pounds&amp;#039;&amp;#039;), then it assumes this as a &amp;#039;&amp;#039;weight&amp;#039;&amp;#039; variable. The default weight unit is kilograms, so Flight Sim assumes that the 0.458038 stored in memory represents 0.458038 &amp;#039;&amp;#039;&amp;#039;kg&amp;#039;&amp;#039;&amp;#039;. When it is asked to covert that to pounds, it returns 1.0098 (0.458038 kg=1.0098 pounds), or in other words, (A:FUEL TANK LEFT MAIN QUANTITY, pounds) = 1.0098.  This value isn&amp;#039;t intuitive and has no meaning because A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, not a weight variable.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, if Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;pounds&amp;#039;&amp;#039;), then it assumes this as a &amp;#039;&amp;#039;weight&amp;#039;&amp;#039; variable. The default weight unit is kilograms, so Flight Sim assumes that the 0.458038 stored in memory represents 0.458038 &amp;#039;&amp;#039;&amp;#039;kg&amp;#039;&amp;#039;&amp;#039;. When it is asked to covert that to pounds, it returns 1.0098 (0.458038 kg=1.0098 pounds), or in other words, (A:FUEL TANK LEFT MAIN QUANTITY, pounds) = 1.0098.  This value isn&amp;#039;t intuitive and has no meaning because A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, not a weight variable.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Rpmc</name></author>
	</entry>
	<entry>
		<id>http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9919&amp;oldid=prev</id>
		<title>Rpmc at 06:52, 11 May 2015</title>
		<link rel="alternate" type="text/html" href="http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9919&amp;oldid=prev"/>
		<updated>2015-05-11T06:52:50Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 01:52, 11 May 2015&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l38&quot;&gt;Line 38:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 38:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;gallons&amp;#039;&amp;#039;), then it recognizes this as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;gallons&amp;#039;&amp;#039;), then it recognizes this as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, if Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &#039;&#039;pounds&#039;&#039;), then it assumes this as a &#039;&#039;weight&#039;&#039; variable. The default weight unit is kilograms, so Flight Sim assumes that the 0.458038 stored in memory represents 0.458038 &#039;&#039;&#039;kg&#039;&#039;&#039;. When it is asked to covert that to pounds, it returns 1.0098 (0.&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;45803 &lt;/del&gt;kg=1.0098 pounds), or in other words, (A:FUEL TANK LEFT MAIN QUANTITY, pounds) = 1.0098.  This value isn&#039;t intuitive and has no meaning because A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, not a weight variable.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, if Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &#039;&#039;pounds&#039;&#039;), then it assumes this as a &#039;&#039;weight&#039;&#039; variable. The default weight unit is kilograms, so Flight Sim assumes that the 0.458038 stored in memory represents 0.458038 &#039;&#039;&#039;kg&#039;&#039;&#039;. When it is asked to covert that to pounds, it returns 1.0098 (0.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;458038 &lt;/ins&gt;kg=1.0098 pounds), or in other words, (A:FUEL TANK LEFT MAIN QUANTITY, pounds) = 1.0098.  This value isn&#039;t intuitive and has no meaning because A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, not a weight variable.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Rpmc</name></author>
	</entry>
	<entry>
		<id>http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9918&amp;oldid=prev</id>
		<title>Rpmc at 06:51, 11 May 2015</title>
		<link rel="alternate" type="text/html" href="http://www.fsdeveloper.com/wiki/index.php?title=XML:_Units:_How_FS_handles_Units&amp;diff=9918&amp;oldid=prev"/>
		<updated>2015-05-11T06:51:12Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 01:51, 11 May 2015&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l27&quot;&gt;Line 27:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 27:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&#039;&#039;&#039;A:Var Example 1&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:&lt;/del&gt;&#039;&#039;&#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&#039;&#039;&#039;A:Var Example 1&#039;&#039;&#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Suppose an aircraft is holding on Rwy 32L at Chicago O’Hare International Airport. The aircraft altimeter will indicate about 673 feet and (A:PLANE ALTITUDE, feet) will return 672.9. However, the numerical value actually saved is 205.1 which is the value of the altitude measured in the default units for the Distance Category, meters.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Suppose an aircraft is holding on Rwy 32L at Chicago O’Hare International Airport. The aircraft altimeter will indicate about 673 feet and (A:PLANE ALTITUDE, feet) will return 672.9. However, the numerical value actually saved is 205.1 which is the value of the altitude measured in the default units for the Distance Category, meters.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l34&quot;&gt;Line 34:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 34:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&#039;&#039;&#039;A:Var Example 2&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:&lt;/del&gt;&#039;&#039;&#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&#039;&#039;&#039;A:Var Example 2&#039;&#039;&#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;gallons&amp;#039;&amp;#039;), then it recognizes this as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A:FUEL TANK LEFT MAIN QUANTITY is a volume variable, and the default unit of measurement for volume is cubic meter. For some Cessna 421 sim models, a full left main tank contains 121 gallons (U.S. liquid gallons), so Flight Sim stores the value 0.458038 into memory (121 gallons=0.458038 cubic meters), together with a flag that says its a volume type of unit. When Flight Sim is asked to display (A:FUEL TANK LEFT MAIN QUANTITY, &amp;#039;&amp;#039;gallons&amp;#039;&amp;#039;), then it recognizes this as a volume type unit, applies the cubic meter to gallons conversion, and returns 121.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Rpmc</name></author>
	</entry>
</feed>