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Military Aircraft

MB -3

Photo By Musee de 1' Air
Established in 1912, the Thomas Brothers Areoplane company merged with Morse Chain company during 1917 to create the Thomas More Aircraft corporation. The company's most important First World War design was the S-4 fighter trainer, but in 1918 the company drew on the concept of the SPAD S.XIII to produce its MB-3 fighter. The first of four prototypes flew in February 1919 and despite the end of the war and savage cuts in aircraft procurement, the US Air Service order 50 production aircraft. In 1920 another 200 aircraft were required, and under the competitive tendering system then used, the contract went to Boeing for the MB-3A  version. This was similar to the MB-3 in all important respects but the cooling system. This had two radiators on the fuselage sides instead of the MB-3's single radiator in the upper wing. As the newer fighters were adopted to the early 1920s, the MB-3As were relegated to the advanced training role with the designation MB-3M. The last aircraft were retired in 1928. 




Description Specifications
Manufacturer: Thomas Morse Length: 20 ft. 0 in.
First Flight: February 1919 Height: 8 ft. 7 in.
Model: 3A Wing Span: 26 ft. 0 in.
Crew: One. Wing Area: 229.0 sq. ft.
Nickname:  Empty Weight: 1,716 lb.
Basic Role: Fighter. Max. Weight: 2,539 lb.
Other Versions: MB-3 initial model. MB-3A Boeing built model with different radiator arrangements and two or four blade propellers. Armament: Two 0.3-in 7.62-mm machine guns, or one 0.5-in 12.7-mm and one 0.3-in 7.62-mm machine gun.
Principal User: USA.



Power Plant: Wright H-3 Hispano-Suiza 8 inline piston engine.
Range: 2 hours 15 minutes endurance. Horsepower: 300-hp.
Max. Speed: 141 mph. at sea level No. Of Engines: One  
Ceiling: 19,500 ft.  
Climb Rate: 1,235 ft per minute  



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