The Hawker P.V.4 was a 1930s British biplane aircraft built by Hawker Aircraft in competition for a government order for a general-purpose military aircraft.
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While the P.V.3 was praised for its handling and performance during testing at RAF Martlesham Heath, no order resulted, as in the mean time Gloster's Gladiator, another Private Venture design, had been ordered into production.
The biplane Vickers Type 253 design, which used a radical geodesic airframe construction that was derived from that used by Barnes Wallis in the airship R100, was ordered by the Ministry and tested against the specification along with the Fairey G.4/31, Westland PV-7, Handley Page HP.47, Armstrong Whitworth A.W.19, Blackburn B-7, Hawker P.V.4 and the Parnall G.4/31.