It is estimated that about 125,000 aircrew served in the squadrons , and the operational training and conversion units of Bomber Command. Approximately 73,000 became casualties of which 55,500 were fatalities. Since for the greater part of the war, Air Gunners (AG) and Wireless Operator/Air Gunners (WOP/AG) made up approximately half of the crew of an aircraft, it is likely that losses attributable to this group could be in the region of  20-25,000.

It is important to realise that the foregoing figures, which are often quoted as total RAF aircrew losses, apply only to Bomber Command in the European theatre. Losses of  Coastal Command, Transport Command, 2^nd TAF, SEAC and the Mediterranean theatre would no doubt substantially  increase the loss figures.