As we've been discussing submarines...whilst on Hermes in 1978 returning from Westlant deployment one of our cabs called a 'pan' as he was returning with an engine over torque caption. Not that unusual but potentially catastrophic, as the cause was due to fouling the sonar body and cable around the after section of HMS Churchill! This occurred within seconds of lowering the body and was widely quoted as a million to one shot. Quite an accolade for an anti-submarine helicopter squadron. Needless to say, the cable was cut pronto for fear of being dragged down. If anyone can remember more of the incident please carry on.