Superb Charles E. Brown studies of Welkin DX318 taken in April 1943.

The Welkin prototype, DG558/G, seen with original rudder, during trials in October 1942.

The prototype Welkin DG558, photographed with modified rudder in January 1943.

PF370 was the sole Welkin NF Mk II, identified by the lengthened nose in which AI radar was installed for night operations. The outer wing panels had increased dihedral and the pilot's windscreen was lowered.