Hello all, This is my first post so forgive any breaches of forum etiquette... I have spent some considerable time recently typing up the diaries of my great uncle, Arthur Nicholls. He suffered terribly from asthma and so was an observer rather than a participant of life in Weymouth in the first half of the last century. He meticulously recorded not only every single air raid on the town during the war, but gunfire, aircraft movements, anti-aircraft fire, shrapnel falling - everything. The reason for my post is that he invariably used the expression "raiders passed" or "RP" in relation to the end of an alert, and his (limited) usage of "all clear" is normally because other people said it. Despite a long-standing interest in the blitz and air warfare this "RP" is an expression I had not encountered before. Was this term widely used, or is it something he made up for himself? I'd be grateful for any thoughts.