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Great Lakes BG
The Great Lakes BG was an American carrier-based dive bomber of the 1930s. Designed and built by the Great Lakes Aircraft Company of Cleveland, Ohio, 61 were used by the United States Navy and United States Marine Corps from 1934 to 1940.
==Development and design==
The Great Lakes Aircraft Company, who had previously built 18 TG-1 and 32 TG-2 variants of the Martin T4M,〔Swanborough and Bowers 1976, p.312.〕 received an order from the U.S. Navy for a prototype two seat dive bomber capable of carrying a 1,000 lb (454 kg) bomb in 1933.〔Swanborough and Bowers 1976, p.193.〕 (This compared with contemporary Scout Bombers such as the Vought SBU and the Curtiss SBC Helldiver, also capable of dive bombing, which had bombloads of 500 lb (227 kg)).
The resulting design was a single engined biplane with single bay, unequal span tapered wings and a fixed tailwheel undercarriage. The aircraft was powered by a Pratt & Whitney Twin Wasp Junior radial engine.〔Donald 1997, p.467.〕
The prototype XBG-1 was completed in mid-1933 and evaluated against the competing Consolidated XB2Y-1, proving superior. As a result, in November 1933, orders were placed for production of the aircraft as the BG-1, which was fitted with a canopy over the cockpits for the two crew, in place of the open cockpits of the prototype. A total of 61 of these aircraft were built, including the prototype.〔〔Grossnick 1995, p.461.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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