The Airco DH.4 is a British two-seat biplane day bomber of the First World War. It was designed by Geoffrey de Havilland (hence "DH") for Airco, and was the first British two-seat light day-bomber capable of defending itself. It was designed and developed specifically as a bomber, as well as aerial reconnaissance missions.

When the United States entered WWI in April 1917, the Aviation Section of the Signal Corps only had 132 aircraft, all obsolete. Modeled from a combat-tested British De Havilland design, the DH-4 was the only U.S. built aircraft to see combat during World War I.

The Aircraft Manufacturing Company (Airco) DH4 (No3696) was a two-seat biplane day bomber of the first World War. It first flew at Hendon in August 1916, with its designer Geoffery de Havilland at the controls. After testing trials at Upavon and later at Martlesham Heath, it entered Royal Flying Corps (RFC) service on 6th March 1917, with No ...

Two-seat, single-engine World War I biplane observation and bomber aircraft; 400-horsepower Liberty V-12 water-cooled engine. American-built version of a British design. Wings and tail natural finish overall.

role : light bomber. first flight : august 1916 at Hendon operational : March 1917. country : United-Kingdom . design : Geoffrey de Havilland. production : all D.H.4 versions : 6295 aircraft (4846 built in the USA DH-4A “Liberty plane”, 1449 in the UK) general information : The D.H.4 is seen as the best light bomber W. OI.

2018年10月23日 · The DH.4 was designed to meet a War Office specification for a lightweight daytime bomber. Though primarily appearing with the AirCo name, the DH.4 was produced by a variety of sub-contractors throughout England (1,449 total aircraft) and in the United States. U.S. production alone accounted for 4,846 aircraft.

和SE 5a一样，德·哈维兰公司的DH-4于1917年被美国政府的包宁委员会 (Boiling Commission)选中，并住美国的工厂中快速制造，以便能够在年底前及时供应给在法国的美国军事航空部队使用，DH-4被美国人以当时的时代精神授予“自由号”。 最初，DH-4是德·哈维兰飞机公司应英国空军部在1916年年初提出的要求制造的。 DH-4在驾驶员座位和侦察员座位之间留出很大空间，这种设计存当时是独一无二的，之所以这样设计，是为了给驾驶员最好的视野，同时给侦察员最好的射 …

The Airco DH.4 was designed for Airco by Geoffrey de Havilland as a twin seat light daylight bomber of all wood airframe construction for use by the Royal Flying Corps in WW1. The overall design proved to be highly successful, especially when powered by the Rolls Royce Eagle engine.

2019年3月18日 · 经过多次改造终于在1917年10月完成试验，DH-4签订了生产合同，当时它被称为“自由飞机”，由三家美国制造商共同建造，截至1918年11月11日战争结束时，最大的生产商俄亥俄州代顿·莱特飞机公司，共计生产了…

The Airco DH.4 was a two-seat biplane bomber and reconnaissance aircraft designed by Geoffrey de Havilland for the Aircraft Manufacturing Company (Airco) during World War I. It was first introduced in 1916 and became one of the most successful and …