Armstrong Whitworth F.K.9
1916
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Armstrong Whitworth F.K.9

The F.K.9 two-seat fighter-reconnaissance quadruplane was built by Sir W G Armstrong Whitworth & Co Ltd as a private venture, and was initially flown in the summer of 1916. Initial trials dictated a number of modifications, including new wings with enlarged ailerons, an enlarged fin, a redesigned engine cowling and increased undercarriage track. In this form, powered by a 110hp Clerget 9Z rotary engine, and with a designated armament of one fixed 7.7mm Vickers gun and one free 7.7mm Lewis gun, the F.K.9 was officially tested in November-December 1916 at the Central Flying School. A production contract for 50 examples of an improved version, the F.K.10, was awarded.


Specification 
 WEIGHTS
    Take-off weight924 kg2037 lb
    Empty weight556 kg1226 lb
 DIMENSIONS
    Wingspan8.46 m28 ft 9 in
    Length7.87 m26 ft 10 in
    Height3.45 m11 ft 4 in
    Wing area32.98 m2354.99 sq ft
 PERFORMANCE
    Max. speed151 km/h94 mph

Comments
pree, 18.06.2011

A production contract for 50 examples of an improved version, the F.K.10, was awarded.

, 18.06.2011

Armstrong Whitworth F.K.9
1916

frankenspider, 09.01.2011

It was "Little Ack", aka F.K.3.

Koos, 25.03.2010

My grandfather was a pilot in the RFC and RAF 1917-1918.
In his logbook he has the A.W. small. Which of the Armstrong
Whitford models is the small?

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