Armstrong Whitworth F.K.6

Armstrong Whitworth · United Kingdom · first flew 1916 · fighter

The Armstrong Whitworth F.K.6 was an experimental escort fighter triplane built during the First World War. It carried two gunners in nacelles.

Recognition (WEFT)

W — WingsMid-mounted, straight
E — Engines1 × piston, nose-mounted
F — FuselageDeep fuselage filling the gap between the middle and lower wings
T — TailConventional

WEFT is AircraftIQ's four-point recognition method — how it works.

Spot it by:

A large tractor triplane with a single 250 hp Rolls-Royce Eagle engine. Its gunners sat behind and outboard of the propeller, and it had two pairs of wheels with a narrow track under the fuselage.

Specifications

Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.

History

It was designed by Frederick Koolhoven to a 1916 War Office specification for a multi-seat escort fighter powered by a Rolls-Royce Eagle. Koolhoven reworked his unflown F.K.5 design into the larger two-bay F.K.6.

Variants

The F.K.5 never flew. Four F.K.6 were ordered in April 1916, but only one was built.

Where you'll see it

Tested with poor performance, it was abandoned once effective synchronising gears became available. No further development or production followed.

Related aircraft

AircraftIQ — the aircraft field guide: 8,606 recognition guides, live overhead identification, works offline.