The Stinson L-5 Sentinel is a single-engine, two-seat liaison and observation aircraft in a strut-braced high-wing configuration of mixed construction. The prototype was built in 1941. Equipped with a large, glazed crew cabin, it entered serial production as the O-49. A development of this design was the O-62, produced from 1942. This aircraft, after minor modifications, was produced until the end of the war as the L-5. A total of 3,283 examples of all versions were built.
Stinson L-5 aircraft were used for artillery fire correction, as liaison, observation and also ambulance aircraft. Factory-unarmed aircraft were sometimes armed “on their own initiative” with infantry weapons. After the end of hostilities, many Stinson L-5 aircraft were sold as surplus to private owners.
The exhibited fuselage framework together with the vertical stabiliser comes from an example with serial number 42-98643. The aircraft was built in 1942 and during World War II flew on the Western Front with the United States Army Air Forces.
| Wingspan | 10.38 m |
| Length | 7.32 m |
| Takeoff weight | 929 kg |
| Maximum speed | 208 km/h |
| Ceiling | 4800 m |
| Range | 670 km |
| Armament | – |
| Engine | 6-cylinder flat Lycoming O-435-1, 187 hp (138 kW) |
