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Stinson L-5 Sentinel

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In 1939, Stinson entered the light-plane market with the Model 105.  An improved Model 10 Voyager was introduced in 1941.

Six Model 10s were tested by the U.S. Army under the designation YO-54 and purchased with a more powerful engine as the O-62.

The O-62 designation was changed to the "L" for Liaison L-5 designation in 1942.  3,590 were ordered making the L-5 the second most widely used AAF liaison aircraft.

Almost 500 L-5s were transferred to the U.S. Navy and Marine Corps and received the designation OY-1.

The unarmed L-5 was used for reconnaissance, removing litter patients from front areas, delivering supplies to isolated units, laying communication wire, spotting targets, transporting personnel, rescuing personnel in remote areas and even as a light bomber.

In 1962 surviving L-5s were re-designated U-19 by the U.S. Air Force.

For more on the history of the Sentinel, go to Jim Gray's "Brief History of the L-5 Design".

Specifications (L-5)





Type: Liaison
Engines: one 185 hp (138 kW) Lycoming O-435-1 flat six-piston engine
105 Voyager: Stinson civil designation
YO-54: U.S. Army service test observation version
O-62: U.S. Army observation version
L-5: U.S. Army re-designated liaison version
OY-1: U.S. Navy observation version
U-19: U.S. Air Force utility designation (post-1962)
V75: Vultee-Stinson designation when modified after merger

Related Pages


Related Websites

More about Stinson Aircraft
Go to the SOPA (Sentinel Owners and Pilots Association) website




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Kenneth W Shanaberger 2000 - 2010