Slightly OT, but when we put the Westland Sea King into RN service, a Friday Happy Hour rumour that it would fly on 4 blades if one was lost in flight (
) became a year long discussion, firmly believed by those who weren't there
Then there was the time I told a Buccaneer driver that the fuel dump tube was the mounting for our arrestor hook, to be fitted for non diversion carrier ops. Took less than 24 hours to become firm fact