Blackburn Firebrand IV aircraft (EK601 and EK617) in flight, 3 July 1945

The Blackburn Firebrand TF.4 first flew on 17 May 1945 and entered Naval service in with No. 813 Squadron. The first, EK601, was retained for development work.

The Blackburn Firebrand was designed as a fighter to specification N.11/40. The type was modified to carry a torpedo and entered Naval service as the Firebrand TF.4 in 1945. Reliability problems led its replacement by the Firebrand TF.5 until the type was replaced by the Westland Wyvern in 1953.