"Breakthrough", The Maiden Flight of the Gloster Whittle E28/39 flown by P E G Sayer OBE, May 15th, 1941. RAF Cranwell, England. 

Signed by Frank Whittle, the artist and also Michael Daunt, The Chief Test Pilot of Gloster Aircraft Co. 

Kenneth Alexander McDonough (1921 - 2002) was born in Wandsworth, London. He was best-known as an aviation artist, producing many illustrations for Airfix model kits and Aeromodeller magazine, and wrote and illustrated the book Atlantic Wings (1966). He also drew the educational strip "Heroes of the Clouds"

Height: 67 cm  |  26.5 in
Width: 89 cm  |  35 in