John Firth[_4_]
November 18th 14, 03:03 PM
The founder of Cambridge Aero Instruments has died;
see the post for Raouf Ismail. He was a long time friend.
It seems no one recognised his name, but he began
the era of electronic instruments in gliders with his first
variometer.
John Firth
see the post for Raouf Ismail. He was a long time friend.
It seems no one recognised his name, but he began
the era of electronic instruments in gliders with his first
variometer.
John Firth