The DH.4 was powered by a variety of engines, including the Eagle, the BHP, the American Liberty, Royal Aircraft Factory RAF3A, the Siddeley Puma and the Fiat. [3] Regardless of the engine used, it drove a four-bladed propeller mounted upon the nose.

We developed our own so-called Liberty Engine -- a large 400 HP water-cooled V-12 machine. The American-built DH-4 was renamed the Liberty Plane. At first it had so many design bugs people called it The Flaming Coffin .

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. With inadequate funding to buy new aircraft, the newly created U.S. Army Air Service continued to use the DH-4 in a number of roles during the lean years following the war.

2014年10月22日 · The DH4, Q400, is a two engine regional turboprop airplane built by Bombardier Aerospace in Toronto, Canada. It is commonly known for its speed, quietness and larger size in the regional aircraft category. As a regional aircraft, it primarily flies on short routes under 1,000 miles.

The modifications to DH-4 that made it into a Twin DH extended the wingspan, increased the cargo capacity and added new engines. The Twin DH had two engines that output 200 horsepower each, whereas the original had a single engine that output 400 horsepower by itself.

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.

2019年5月19日 · Production machines were fitted with a variety of engines, including the 298 kw (400 hp) Liberty, 194 kw (260 hp) Fiat A-120, 186 kw (250 hp) Rolls Royce Falcon, and 149 kw (200 hp) RAF 3a. The type served with the Royal Flying Corps (RFC) and the Royal Naval Air Service (RNAS).

The DH.4 was tried with several engines, of which the best was the 375 hp (280 kW) Rolls-Royce Eagle engine. Armament and ordnance for the aircraft consisted of one 0.303 in (7.7 mm) Vickers machine gun for the pilot and one 0.303 in (7.7 mm) Lewis gun on a …

Engine: 1 × Rolls-Royce Eagle VII inline liquid cooled piston, 375 hp (289 kW) Maximum speed: 143 mph (230 km/h) at sea level; Range: 470 mi (770 km) Endurance: 3¾ hr; Maximum altitude: 22,000 ft (6,700 m) Rate of climb: 1,000 ft/min (305 m/min) Wing loading: 8 lb/ft² (39.5 kg/m²) Power to mass ratio: 0.108 hp/lb (0.266 kW/kg) Climb to ...