I was taught to fly at RVAC in 1970, DHC-1 Chipmunk with Bruce Northeast as instructor. One of the Chipmunk, RVW had an enlarged rudder, something to do with banner towing I recall. Wings test with Urms Wright who was CFI. I remember passing through Karachi some years later and the flight was delayed for some reason. Passengers were taken to a lounge for refreshments whilst the Viscount was worked on. The engineer working on the RR engine knew Urms from years gone by when he was CFI at the Karachi Aero Club. Urns apparently walked away from two forced landings in Spitfires after engine failure.
Did my twin engine conversion at RVAC in twin Comanche ASL with Urms. Pressure from family I gave the flying away. Regretfully.