Never understood why mechanical palm-tree drivers insisted on wearing berets with their flying suits. Berets should be for Rock Apes if we want to be historically accurate - otherwise they are an abomination. Also, don’t understand why 2-stars and above can wear a chip bag with PCS - surely a uniform should be uniform?
The Field Service Cap was authorized by Air Ministry Order A93/36. From December 1939 this form of headdress replaced the earlier peaked service cap for all non-commissioned ranks apart from the following: RAF Police, MT Drivers, and Apprentices. The cap badge was that worn earlier on the previous cap, but officers and warrant officers wore a gilt eagle and crown two-piece badge.The FS cap remained the standard form of headdress for the RAF as working dress and walking out, with berets being issued the RAF Regiment from 1943.