High Quality Content by WIKIPEDIA articles! The Vickers F.B.12 was a biplane pusher fighter aircraft developed during World War I by Vickers Limited. At the start of the First World War, Vickers entered into a partnership with the Hart Engine Company to develop a 150 hp (110 kW) nine-cyliner radial engine designed by Hart. This engine was planned to power a number of new designs by Vickers, the first of which was a small single-engine pusher biplane fighter, the F.B.12. The F.B.12 resembled the D.H.2 and F.E.8; wood and fabric wings with rounded tips. The circular nacelle was framed in steel tubing, with the engine directly behind the cockpit, driving a wooden propeller.