Passion-killers: Airwomen's service knickers, whether twilights (the lighter, summer-weight variety) or black-outs (the navy-blue winter-weights). A wise directive has purposely made them as unromantic in colour and in design as a wise directive could imagine.

Thanks to the work of Eric Partridge in 1945, the hilarious slang of the Royal Air Force during the first two World Wars has been preserved for generations to come. While some phrases like 'chocks away!' have lasted to this day, others deserve to be rediscovered. The Dictionary of RAF Slang is a funny and fascinating insight into the lives of our RAF heroes, in a time gone by.