Royal Aircraft Factory F.E.1

F.E.1
Role	Experimental research aircraft
Manufacturer	Geoffrey de Havilland
Designer	Geoffrey de Havilland
First flight	September 1910
Primary user	Royal Aircraft Factory
Number built	1

The F.E.1 was designed and built in 1910 by the pioneer designer Geoffrey de Havilland. He used it to teach himself to fly during late 1910. After De Havilland was appointed assistant designer and test pilot at Army Balloon Factory at Farnborough (later the Royal Aircraft Factory) in December 1910 the War Office bought the aircraft for £400^[1]. the aircraft was given the designation F.E.1 (Farman Experimental)

Design and development

After the failure of his first aircraft design Geoffrey de Havilland began construction of second aircraft, using the engine that he had designed for the earlier machine. Like the Bristol Boxkite and several other contemporary British designs, this closely followed the general lines of the Farman III, being a two-bay pusher biplane with an elevator carried on booms in front of the wing, the pilot seated on the lower wing directly in front of the engine, and a second elevator and a rudder behind the wings. Lateral control was effected by a pair of ailerons mounted on the upper wing. De Havilland and several other pilots flew it at Farnborough until it crashed in the summer of 1911 while piloted by Lt. Theodore J. Ridge, who was later killed attempting to fly the S.E.1.

"Rebuild" as the F.E.2

Main article: Royal Aircraft Factory F.E.2

The crashed F.E.1 was "rebuilt" in August 1911 as the F.E.2. In fact it was a "rebuild" in name only, as it was a completely new design,^[2] incorporating few if any actual components of the original (at this stage Farnborough were still not authorised to build aircraft from scratch). The Iris engine, seriously damaged in the F.E.1 crash, was replaced by a 50 hp. Gnome rotary engine, a two seater nacelle was fitted, and the fore-elevator was replaced with one incorporated into a sesquiplane tail in the conventional manner. In this form many tests were carried out, including the fitting of a machine gun, and seaplane trials, fitted with a single central float. At this point the F.E.2 was powered by a 70 hp (52 kW) Gnome.^[2]

In 1913 the F.E.2 design was once more heavily reworked^[2] with a new and streamlined nacelle, upper wing panels which extended the span to 42 ft (12.08 m) and a revised tail with a smaller rudder and tailplane lifted to the top longerons. The Gnome was replaced by a 70 hp (52 kW) air cooled Renault V-8 engine. Effectively, although the factory now routinely constructed original aircraft, it was another case of a new design reusing the designation of an older one. It was lost in a crash in February 1914 when the pilot, R. Kemp lost control while in a dive, killing his passenger.^[2]

The F.E.2a/b/d types produced in numbers in World War I followed the same general layout, but were considerably larger, and again of a totally new design.^[2] This double re-use of the F.E.2 designation has caused considerable confusion among aviation historians.

Operators

 United Kingdom

• Royal Aircraft Factory

Specifications (F.E.1 in its original form)

General characteristics

• Length: 40 ft (12.2 m)
• Wingspan: 33 ft (10 m)
• Height: ()
• Wing area: 340 ft² (31.60 m²)
• Loaded weight: 1,100 lb. (500 Kg)

Performance

• Maximum speed: 37 mph (60 km/h)

References

Notes

1. ^ Jackson 1962 p.470
2. ^ ^{a b c d e} Jackson 1978, p. 35–7

Bibliography

• Hare, Paul R. Aircraft of the Royal Aircraft Factory Ramsbury: The Crowood Prss, 1999 ISBN 1 86126 209 4
• Jackson, A.J. de Havilland Aircraft since 1909 London: Putnam, 1978 isbn 0 370 30022 X
• Lewis, Peter British Aircraft 1809-1914 London, Putnam, 1962