He played a major part in establishing the Pathfinder project, over the objections of Arthur Harris.
[1] As a young man he was a Welsh International Hockey player (1931–1937) as well as playing for the RAF and the Combined Services.
[1] He argued for the formation of a Target Finding Force to improve the accuracy and effectiveness of Bomber Command.
[2] He headed the preparations for the ill-fated Operation Thunderclap and for the air warfare against cities and civilians in German-occupied Europe.
After the War he was appointed Commandant of the Central Bomber Establishment and then Deputy Chief of Staff (Operations and Plans) at Headquarters Air Forces Western Europe in 1948.