Lt Cdr John Sproule RN
Speechless Two.
I understand that the early marks of Whirlwind were provided with a pilot-operated power winch similar to that fitted in the Dragonfly. The boom however,was much too low and had to be traversed to get the casualty into the cabin. It is reported that Lt Cdr Sproule RN designed a raised boom so that the man hoisted was suspended much higher and could be swung easily into the cabin without moving the boom.