11/30/2010. The last Hurricane variant developed in the UK, the Mk.V was an experimental development of the Mk.IV, employing a ground-boosted Merlin 32 driving a Rotol four-blade propeller. The first aircraft, KZ193, was first flown by the test pilots P.G. Lucas and F.H.S. Fox on April 3, 1943. Only two Mk.V's were built, the other being NL255, both being converted from Mk.IV's.
KZ193 was subjected to a heavy trials program at Langley, fitted with an 1.57 in (40 mm) Bofors cannon under each wing, but later in the year both aircraft were delivered for Service evaluation at Boscombe Down. The ground-boosted Merlins proved of little advantage and on return to Hawker Aircraft each was reverted to Mk.IV standard.