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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Douglas BTD Destroyer ： ウィキペディア英語版 Douglas BTD Destroyer The Douglas BTD Destroyer was an American dive〔Kowalski, Bob; Ginter, Steve (1995). Douglas XSB2D-1 & BTD-1 Destroyer. Naval Fighters Number Thirty. Simi Valley, California: Ginter Books. ISBN 978-0942612301.〕 bomber developed for the United States Navy during World War II. ==Development== On 20 June 1941, the United States Navy placed an order with the Douglas Aircraft Company for two prototypes of a new two-seat dive bomber to replace both the Douglas SBD Dauntless and the new Curtiss SB2C Helldiver, designated XSB2D-1. The resulting aircraft, designed by a team led by Ed Heinemann, was a large single-engined mid-winged monoplane. It had a laminar flow gull-wing, and unusually for a carrier-based aircraft of the time, a tricycle undercarriage. It was fitted with a bomb bay and underwing racks for up to 4,200 lb (1,900 kg), while defensive armament consisted of two wing-mounted 20 mm (0.79 in) cannon and two remote-controlled turrets, each with two .50 in (12.7 mm) machine guns.〔Francillon 1979, p. 366.〕 The prototype first flew on 8 April 1943, demonstrating excellent performance, being much faster and carrying nearly double the bombload of the Helldiver, and orders for 358 SB2D-1s quickly followed. The U.S. Navy changed its requirements, however, wanting single-seat carrier-based torpedo/dive bombers without defensive turrets, and Douglas reworked the SB2D by removing the turrets and second crewman, while adding more fuel and armor, producing the BTD-1 Destroyer. The orders for SB2Ds were converted to BTD-1s, with the first BTD flying on 5 March 1944.〔Francillon 1979, pp. 367–368.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Douglas BTD Destroyer」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.