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The Boeing XB-15 (Boeing 294) was a United States bomber aircraft designed in 1934 as a test for the United States Army Air Corps (USAAC) to see if it would be possible to build a heavy bomber with a 5,000 mi (8,000 km) range. For a year beginning in mid-1935 it was designated the XBLR-1. When it first flew in 1937, it was the most massive and ...
The Boeing XB-39 Superfortress was a United States prototype bomber aircraft, a single example of the B-29 Superfortress converted to fly with alternative powerplants. It was intended to demonstrate that the B-29 could still be put into service even if the first choice of engine, the air-cooled Wright R-3350 radial engine, ran into development or production difficulties.
Martin XB-27 heavy bomber: n/a: abandoned project: 0: Martin XB-33 Super Marauder heavy bomber: n/a: abandoned project: 0: Naval Aircraft Factory SBN dive bomber: 1936: retired 1942: 31: North American A-27 attack: 1940: retired 1941: 10: North American T-6 Texan light attack: 1940: retired: 15,495 [notes 4] North American XB-21 medium bomber ...
The XB-38 was the result of a modification project undertaken by Vega (a subsidiary of Lockheed) on a Boeing B-17 Flying Fortress to fit it with liquid-cooled Allison V-1710-89 V-12 engines. It was to be an improved B-17, and an alternative if the normally fitted air-cooled Wright R-1820 radial engines became scarce. Completing the ...
Thus, the funding made available by the XB-55 cancellation was earmarked for the study of a supersonic medium bomber, and a request for proposals was extended to several aircraft companies. Boeing submitted a proposal for a four-engine, high-wing aircraft with a highly streamlined fuselage. The four engines would be buried in thickened wing ...
Boeing XB-29-BO (S/N 41-002, the first XB-29 built) The XB-29, Boeing Model 345, was the first accepted prototype or experimental model delivered to the Army Air Corps, incorporating a number of improvements on the design originally submitted, including more and larger guns and self-sealing fuel tanks. Two aircraft were ordered in August 1940 ...
The hosts of the Today show are starting their mornings in the City of Lights. Hoda Kotb, Savannah Guthrie, Al Roker and Craig Melvin will cover the 2024 Paris Olympic Games — which take place ...
The Boeing XB-56 was a proposal by Boeing for a re-engined version of the American jet-powered medium bomber aircraft, the B-47 Stratojet. The original designation for this modification was YB-47C . Design and development