Boeing Model 299 / YB-17






1st Flight 1934

The Model 299 was the original bomber design built by Boeing to fulfil an August 1934 requirement by the United States Army Air Corps for a bomber capable of carrying 2,000 lb (907 kg) of bombs 2,000 mi (3,218 km) at 200 mph (322 km/h).

The 299 was powered by four Pratt & Whitney S1EG Hornet radial engines rated at 750 horsepower (560 kW) each at 7,000 feet (2,100 m), giving a maximum speed of 236 miles per hour (380 km/h) and a maximum gross weight of 38,053 pounds (17,261 kg).

It carried a bomb load of eight 600 pounds (270 kg) bombs, with a defensive armament of five machine guns, with one in a nose turret and one each in dorsal and ventral mounts and two in waist blisters.

In 1935, Boeing’s Model 299 competed with several entries by other companies at an evaluation at Wright Field near Dayton, Ohio, USA.

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