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de Havilland DH-4



YouTube - de Havilland DH-4


Specifications
    Primary Function:
    Crew:
    Engines:
    Power:
    Length:
    Wingspan:
    Weight Empty:
    Max. Weight:
    Machine Guns:
    Ordnance:
    Cruise Speed:
    Max. Speed:
    Climb Rate:
    Ceiling:
    Range:
    First Flight:
    Year Deployed:
bomber
two
Liberty L-12
400 h.p. ea.
30 ft. 8 in.
43 ft. 4 in.
2,390 lbs.
3,557 lbs.
4- .30 cal.
322 lbs.
90 mph
128 mph
990 fpm
19,600 feet
400 miles
8/10/1916
1917




de Havilland DH-4
de Havilland DH-4
Click on the photo to hear the wav sound.

The de Havilland DH-4 is known as the best single engine biplane bomber of World War I. It was designed in response to a 1914 British War Office requirement for a two-seat day bomber.

The aircraft was known for its strength, maneuverability, and speed. It was faster than many enemy aircraft of its day.

The de Havilland DH-4 was used as a bomber, a reconnaissance and observation aircraft, for anti-shipping, as a Zeppelin interceptor, and for mail deliveries. It was the primary light bomber of the American Expeditionary Forces.

The pilot's cockpit was placed far forward in the fuselage for better visibility. However, the rear gunner/observer was so far to the rear of the aircraft that communication was only possible through hand signals.

The de Havilland DH-4 was originally designed around the 230 hp Beardmore-Halford-Pullinger engine. There were so many development problems with the new engine that no fewer than seven different engine types were fitted to production aircraft.

A total of 1,449 de Havilland DH-4 aircraft were built in the UK, and a total of 4,846 were produced in the U.S.A.


de Havilland DH-4
de Havilland DH-4 - Balsa USA

In the picture immediately above is the de Havilland DH-4 from Balsa USA. Its wingspan is 127" and length is 89". From 45 to 65 cc engines will power the 34 lb. giant scale model.

Pictured right below is the de Havilland DH-4 from a kit for sale from K&W Models museum quality kits. It has a wingspan of 101.5" with a length of 72". You will need from .90 to 1.20 two stroke or from 1.20 to 1.80 four stroke engines to power the 16 lb. radio control airplane.

The next picture is of the de Havilland DH-4 from a Dumas kit. It has a wingspan of 35" and a length of 25". Power is from an electric motor.

The bottom picture is of the de Havilland DH-4 built by Pat Tritle. Its wingspan is 35" and power comes from a geared GWS IPS motor. You can find the build thread at RC Groups.

Kit Cutters has a de Havilland DH-4 plan by Gary Sunderland. Wingspan is 85" and engines are from .80 to .90.

Cleveland Models & Supply has plans for the de Havilland DH-4. Wingspans are 16", 21", 32", 43", 64", 85", and 128".

The RC Store.com has de Havilland DH-4 plans. They are by Eric Feanley. Wingspan is 61 1/2" and engines are from .40 - .60.

You can find a de Havilland DH-4 kit from Gullows. It has a 27" wingspan.


de Havilland DH-4
de Havilland DH-4 - K&W


de Havilland DH-4
de Havilland DH-4 - Dumas


de Havilland DH-4
de Havilland DH-4 - Tritle