The Armstrong Whitworth F.K.10 was a British First World War quadruplane fighter. Testing proved that the additional wings produced too much drag. Of the 50 ordered, only 8 were built. https://www.destinationsjourney.com/historical-military-photographs/armstrong-whitworth-fk-10/ #ArmstrongWhitworthFK10 #aviation #FirstWorldWar #quadraplane #RFC #RNAS #RoyalFlyingCorps #RoyalNavalAirService #WorldWarOne
Friedrichshafen FF.54 Quadraplane Fighter - Destination's Journey

Photos of the Friedrichshafen FF.54 a quadraplane fighter. It crashed on its first flight Oct 1917. A revised triplane design also crashed

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