Editing Packard (section)

===Other Packard engines===
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| caption1=[[Gar Wood]]'s ''Miss America 2'', winner of the 1921 [[Harmsworth Trophy]], was powered by four Packard-built [[Liberty L-12]] engines.
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| caption2=Later variants of the [[North American P-51 Mustang]] were powered by a [[Packard V-1650 Merlin]], a license-built version of the [[Rolls-Royce Merlin]].
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| caption3=[[PT boat]]s were powered by a trio of [[Packard 1A-2500#Variants|Packard 4M-2500]] engines, and later models featured the improved 5M-2500.
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Packard also made large aeronautical and marine engines. Chief engineer [[Jesse G. Vincent]] developed a V12 airplane engine called the "[[Liberty engine]]" that was used widely in Entente air corps during [[World War I]]. After the war the Liberty was adapted for marine use, becoming a multiple world record setter under inventor and boating pioneer [[Gar Wood]] from the late 1910s through the 1930s.

In the interbellum, Packard built one of the world's first diesel aviation engines, the 225-hp [[Packard DR-980|DR-980]] radial. It powered the [[Stinson Junior|Stinson SM-8D]], among others. It also powered a [[Bellanca CH-300]] on a record endurance flight of over 84 hours, a mark that stood for more than 50 years. Other Packard-powered airplanes set several records during the 1920s.

During WWII, Packard license-built [[Rolls-Royce Merlin]] engines under the [[Packard V-1650]] designation, used with great success in the famed [[P-51 Mustang]] fighter. A marine version of the successor to the V12 Liberty was adapted in three versions &ndash; [[Packard 1A-2500#Variants|M3-2500, M4-2500, and M5-2500]] &ndash; to power the war's iconic [[PT boat]]s.

After WWII, Packard produced a new line of flathead design six (model 1M-245) and eight (model 1M-356) cylinder marine engines based on the automobile versions and the experience gained from the war production. Of the 1M-245 type engines, only 1,865 were produced between Spring 1947 and January 1951, with only a handful of survivors.<ref>{{cite web |url=https://www.packardclub.org/forum/viewtopic.php?f=17&t=509 |title=PackardClub.org • View topic - Packard Marine Engine 1M-245 |website=packardclub.org |access-date=January 13, 2019 |archive-date=August 11, 2018 |archive-url=https://web.archive.org/web/20180811194315/https://www.packardclub.org/forum/viewtopic.php?f=17&t=509 |url-status=live}}</ref> Of the 1M-356 type engines, approximately 1,525 were produced between 1947 and 1950.<ref>{{cite web |url=http://www.packardclub.org/forum/viewtopic.php?f=17&t=530 |title=Packard Marine Engine 1M-356 |website=packardclub.org |access-date=January 13, 2019 |archive-date=August 11, 2018 |archive-url=https://web.archive.org/web/20180811163846/http://www.packardclub.org/forum/viewtopic.php?f=17&t=530 }}</ref> Even more rare is the experimental "R" type racing versions (1M-245 "R"), of which only 10 were produced with currently only one known survivor, a 1M-245 R six-cylinder engine powering today a 1936 [[Gar Wood Speedster]].<ref>{{cite web |url=http://www.oldmarineengine.com/discus/messages/2/268877.html |title=Old Marine Engine: Packard straight-eight 1m-356 |website=oldmarineengine.com |access-date=January 13, 2019 |archive-date=January 15, 2019 |archive-url=https://web.archive.org/web/20190115065711/http://www.oldmarineengine.com/discus/messages/2/268877.html |url-status=live}}</ref>

Packard also developed two turbine aircraft engines for the [[US Air Force]], the [[Packard XJ41|XJ41]] and [[Packard XJ49|XJ49]]. This was one reason for the [[Curtiss-Wright]] take-over in 1956, Packard wanted to sell their own jet.<ref>{{cite book |last=Ward |first=James A. |title=The Fall of the Packard Motor Car Company |publisher=Stanford University Press |year=1995 |isbn=978-0-8047-2457-9}}</ref>