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	<id>https://www.vigyanwiki.in/index.php?action=history&amp;feed=atom&amp;title=Template%3AUS_military_piston_aeroengines</id>
	<title>Template:US military piston aeroengines - Revision history</title>
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	<updated>2026-04-05T11:46:19Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.vigyanwiki.in/index.php?title=Template:US_military_piston_aeroengines&amp;diff=182517&amp;oldid=prev</id>
		<title>Indicwiki: 1 revision imported from :alpha:Template:US_military_piston_aeroengines</title>
		<link rel="alternate" type="text/html" href="https://www.vigyanwiki.in/index.php?title=Template:US_military_piston_aeroengines&amp;diff=182517&amp;oldid=prev"/>
		<updated>2023-06-11T04:58:23Z</updated>

		<summary type="html">&lt;p&gt;1 revision imported from &lt;a href=&quot;https://alpha.indicwiki.in/index.php?title=Template:US_military_piston_aeroengines&quot; class=&quot;extiw&quot; title=&quot;alpha:Template:US military piston aeroengines&quot;&gt;alpha:Template:US_military_piston_aeroengines&lt;/a&gt;&lt;/p&gt;
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				&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 10:28, 11 June 2023&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>Indicwiki</name></author>
	</entry>
	<entry>
		<id>https://www.vigyanwiki.in/index.php?title=Template:US_military_piston_aeroengines&amp;diff=182516&amp;oldid=prev</id>
		<title>alpha&gt;Indicwiki: Created page with &quot;{{Navbox |name = US military piston aeroengines |title = United States military piston aircraft engine United States military aircraf...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.vigyanwiki.in/index.php?title=Template:US_military_piston_aeroengines&amp;diff=182516&amp;oldid=prev"/>
		<updated>2023-05-03T02:52:51Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{Navbox |name = US military piston aeroengines |title = &lt;a href=&quot;/index.php?title=United_States_Department_of_Defense&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;United States Department of Defense (page does not exist)&quot;&gt;United States military&lt;/a&gt; piston aircraft engine United States military aircraf...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Navbox&lt;br /&gt;
|name = US military piston aeroengines&lt;br /&gt;
|title = [[United States Department of Defense|United States military]] piston aircraft engine [[United States military aircraft engine designations|designation system]]&lt;br /&gt;
|state = {{{state|autocollapse}}}&lt;br /&gt;
|listclass = hlist&lt;br /&gt;
&lt;br /&gt;
|group1 = [[H engine|H (four-bank &amp;lt;br&amp;gt; H-configuration inline)]]&lt;br /&gt;
|list1 = &lt;br /&gt;
* [[Curtiss H-1640|H-1640]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney X-1800|XH-2240]]&lt;br /&gt;
* [[Lycoming XH-2470|XH-2470]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney X-1800|XH-2600]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney XH-3130|XH-3130]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney XH-3130|XH-3730]]&lt;br /&gt;
* [[Menasco H-4070|H-4070]]&lt;br /&gt;
&lt;br /&gt;
|group2 = [[V engine|IV (inverted-V inline)]]&lt;br /&gt;
|list2 = &lt;br /&gt;
* [[Continental XI-1430|IV-1430]]&lt;br /&gt;
* [[Menasco XIV-2040|IV-2040]]&lt;br /&gt;
* [[Chrysler IV-2220|IV-2220]]&lt;br /&gt;
&lt;br /&gt;
|group3 = [[Straight engine|L (single-bank inline)]]&lt;br /&gt;
|list3 = &lt;br /&gt;
* [[Martin L-330|L-330]]&lt;br /&gt;
* [[Menasco Pirate|L-365]]&lt;br /&gt;
* [[de Havilland Gipsy Major|L-375]]&lt;br /&gt;
* [[Ranger 6-390B|L-390]]&lt;br /&gt;
* [[Ranger 6-410B-2|L-410]]&lt;br /&gt;
* [[Ranger L-440|L-440]]&lt;br /&gt;
* [[Miller 44-255|L-510]]&lt;br /&gt;
* [[Liberty L-8|L-825]]&lt;br /&gt;
&lt;br /&gt;
|group4 = [[Flat engine|O (opposed)]]&lt;br /&gt;
|list4 = &amp;lt;!-- Note that civilian aircraft engines often use an O-### designation system that is identical to but not the same as the U.S. military designation system --&amp;gt;&lt;br /&gt;
* [[Righter O-15|O-15]]&lt;br /&gt;
* [[Muncie Gear O-40|O-40]]&lt;br /&gt;
* [[Righter O-45|O-45]]&lt;br /&gt;
* [[McCulloch O-90|O-90]]&lt;br /&gt;
* [[McCulloch O-100|O-100]]&lt;br /&gt;
* [[Lycoming O-145|O-145]]&lt;br /&gt;
* [[Franklin O-150|O-150]]&lt;br /&gt;
* [[Continental O-170|O-170]]&lt;br /&gt;
* [[Franklin O-175|O-175]]&lt;br /&gt;
* [[Franklin O-175|O-180]]&lt;br /&gt;
* [[Continental O-190|O-190]]&lt;br /&gt;
* [[Continental O-200|O-200 (C)]]&lt;br /&gt;
* [[Franklin O-200|O-200 (F)]]&lt;br /&gt;
* [[Continental O-200|O-205]]&amp;lt;!-- &lt;br /&gt;
* [[Lycoming O-233|O-233]] --&amp;gt;&lt;br /&gt;
* [[Lycoming O-235|O-235]]&amp;lt;!--&lt;br /&gt;
* [[Continental O-240|O-240]]&lt;br /&gt;
* [[Continental O-280|O-280]] --&amp;gt;&lt;br /&gt;
* [[Lycoming O-290|O-290]]&amp;lt;!--&lt;br /&gt;
* [[Continental O-300|O-300 (C)]] --&amp;gt;&lt;br /&gt;
* [[Franklin O-300|O-300]]&amp;lt;!--&lt;br /&gt;
* [[Lycoming O-320|O-320]] --&amp;gt;&lt;br /&gt;
* [[Franklin O-335|O-335]]&amp;lt;!--&lt;br /&gt;
* [[Lycoming O-340|O-340]]&lt;br /&gt;
* [[Continental IO-346|O-346]]&lt;br /&gt;
* [[Lycoming O-350|O-350]] --&amp;gt;&lt;br /&gt;
* [[Continental IO-360|O-360 (C)]]&lt;br /&gt;
* [[Lycoming O-360|O-360 (L)]]&amp;lt;!--&lt;br /&gt;
* [[Lycoming O-390|O-390]] --&amp;gt;&lt;br /&gt;
* [[Franklin O-405|O-405]]&lt;br /&gt;
* [[Franklin O-425|O-425]]&lt;br /&gt;
* [[Lycoming O-435|O-435]]&lt;br /&gt;
* [[Continental O-470|O-470]]&lt;br /&gt;
* [[Lycoming O-480|O-480]]&lt;br /&gt;
* [[Continental O-520|O-520]]&lt;br /&gt;
* [[Franklin O-540|O-540 (F)]]&lt;br /&gt;
* [[Lycoming O-540|O-540 (L)]]&amp;lt;!--&lt;br /&gt;
* [[Lycoming O-541|O-541]] --&amp;gt;&lt;br /&gt;
* [[Continental IO-550|O-550]]&lt;br /&gt;
* [[Lycoming GSO-580|O-580]]&amp;lt;!--&lt;br /&gt;
* [[Lycoming O-720|O-720]] --&amp;gt;&lt;br /&gt;
* [[Franklin O-805|O-805]]&lt;br /&gt;
* [[Lycoming O-1230|O-1230]]&lt;br /&gt;
&lt;br /&gt;
|group5 = [[Radial engine|R (radial)]]&lt;br /&gt;
|list5 = &amp;lt;!-- Note that some civilian radials apparently use R-#### designation that are identical in format to but not the same as U.S. military designations --&amp;gt;&lt;br /&gt;
* [[General Motors Research X-250|R-250]]&lt;br /&gt;
* [[LeBlond 5G|R-265]]&lt;br /&gt;
* [[Lambert R-270|R-270]]&lt;br /&gt;
* [[LeBlond 7G|R-370 (LB)]]&lt;br /&gt;
* [[Kinner K-5|R-370 (K)]]&lt;br /&gt;
* [[Warner Scarab|R-420]]&lt;br /&gt;
* [[Kinner B-5|R-440]]&lt;br /&gt;
* [[Warner Scarab|R-500]]&lt;br /&gt;
* [[Wright R-540 Whirlwind|R-540 (W)]]&lt;br /&gt;
* [[Kinner R-5|R-540 (K)]]&lt;br /&gt;
* [[Continental A70|R-545]]&lt;br /&gt;
* [[Warner Scarab|R-550]]&lt;br /&gt;
* [[Curtiss R-600 Challenger|R-600]]&lt;br /&gt;
* [[Continental R-670|R-670]]&lt;br /&gt;
* [[Lycoming R-680|R-680]]&lt;br /&gt;
* [[Kinner C-5|R-720]]&lt;br /&gt;
* [[Jacobs R-755|R-755]]&lt;br /&gt;
* [[Wright R-760 Whirlwind|R-760]]&lt;br /&gt;
* [[Wright R-790 Whirlwind|R-790]]&lt;br /&gt;
* [[Jacobs R-830|R-830]]&lt;br /&gt;
* [[Jacobs R-915|R-915]]&lt;br /&gt;
* [[Wright R-975 Whirlwind|R-975]]&lt;br /&gt;
* [[Packard Diesel|DR-980]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney R-985 Wasp Junior|R-985]]&lt;br /&gt;
* [[Kinner C-7|R-1044]]&amp;lt;!--&lt;br /&gt;
* [[Wright R-1200|R-1200]] --&amp;gt;&lt;br /&gt;
* [[Wright R-1300 Cyclone 7|R-1300]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney R-1340 Wasp|R-1340]]&lt;br /&gt;
* [[Curtiss R-1454|R-1454]]&lt;br /&gt;
* [[Wright Whirlwind series|R-1510]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney R-1535 Twin Wasp Junior|R-1535]]&lt;br /&gt;
* [[Curtiss H-1640|R-1640]]&lt;br /&gt;
* [[Wright Whirlwind series|R-1670]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney R-1690 Hornet|R-1690]]&lt;br /&gt;
* [[Wright Cyclone series|R-1750]]&lt;br /&gt;
* [[Wright R-1820 Cyclone|R-1820]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney R-1830 Twin Wasp|R-1830]]&amp;lt;!--&lt;br /&gt;
* [[Pratt &amp;amp; Whitney Hornet|R-1850]] --&amp;gt;&lt;br /&gt;
* [[Pratt &amp;amp; Whitney R-1860 Hornet B|R-1860]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney R-2000 Twin Wasp|R-2000]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney R-2060 Yellow Jacket|R-2060]]&lt;br /&gt;
* [[Wright R-2160 Tornado|R-2160]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney R-2180|R-2180]]&amp;lt;!--&lt;br /&gt;
* [[Pratt &amp;amp; Whitney R-2270|R-2270]] --&amp;gt;&lt;br /&gt;
* [[Wright R-2600 Twin Cyclone|R-2600]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney R-2800 Double Wasp|R-2800]]&lt;br /&gt;
* [[Wright R-3350 Duplex-Cyclone|R-3350]]&lt;br /&gt;
* [[Wright R-4090 Cyclone 22|R-4090]]&lt;br /&gt;
* [[Pratt &amp;amp; Whitney R-4360 Wasp Major|R-4360]]&lt;br /&gt;
* [[Lycoming XR-7755|XR-7755]]&lt;br /&gt;
&lt;br /&gt;
|group6 = [[V engine|V (upright-V inline)]]&lt;br /&gt;
|list6 = &lt;br /&gt;
* [[Hispano-Suiza 8|V-720]]&lt;br /&gt;
* [[Curtiss D-12|V-1150]]&lt;br /&gt;
* [[Packard V-1237|V-1237]]&lt;br /&gt;
* [[Curtiss D-12|V-1400]]&lt;br /&gt;
* [[Continental V-1440|V-1440]]&lt;br /&gt;
* [[Wright V-1460|V-1460]]&lt;br /&gt;
* [[Curtiss V-1510|V-1510]]&lt;br /&gt;
* [[Wright V-1560|V-1560]]&lt;br /&gt;
* [[Curtiss V-1570|V-1570]]&lt;br /&gt;
* [[Packard V-1650 Merlin|V-1650 (P)]]&lt;br /&gt;
* [[Allison V-1710|V-1710]]&lt;br /&gt;
* [[Wright T-3 Tornado|V-1950]]&lt;br /&gt;
* [[Allison V-3420|V-3420]]&lt;br /&gt;
&lt;br /&gt;
|group7 = [[V engine|V (inverted-V inline)]]&lt;br /&gt;
|list7 = &lt;br /&gt;
* [[Ranger V-770|V-770]]&lt;br /&gt;
* [[Liberty L-12|V-1650 (L)]]&lt;br /&gt;
&lt;br /&gt;
|group8 = [[V engine|VG (inverted-V inline)]]&lt;br /&gt;
|list8 = &lt;br /&gt;
* [[Liberty L-12|VG-1410]]&lt;br /&gt;
&lt;br /&gt;
|group9 = [[W engine|W (three-bank &amp;lt;br&amp;gt; W-configuration inline)]]&lt;br /&gt;
|list9 = &lt;br /&gt;
* [[Engineering Division W-2779|W-2779]]&lt;br /&gt;
&lt;br /&gt;
|belowclass = hlist&lt;br /&gt;
|below = &lt;br /&gt;
* ''See also:'' [[Pratt &amp;amp; Whitney X-1800|X-1800]] &lt;br /&gt;
* [[Template:US military gas turbine aeroengines|US military gas turbine aeroengines]] &lt;br /&gt;
* [[Template:Piston engine configurations|Piston engine configurations]]&lt;br /&gt;
}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
{{collapsible option}}&lt;br /&gt;
[[Category:United States aircraft designations navigational boxes]]&lt;br /&gt;
[[Category:Aircraft engine navigational boxes]]&lt;br /&gt;
&amp;lt;/noinclude&amp;gt;&lt;/div&gt;</summary>
		<author><name>alpha&gt;Indicwiki</name></author>
	</entry>
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