Geoff Byham obituary

My colleague Geoff Byham, who has died aged 71, will be remembered as the architect of advanced rotor aerodynamics at Westland Helicopters.

In 1974, as Westland's head of aerodynamics research, he led the development of new rotor aerodynamic solutions in partnership with the Royal Aircraft Establishment. This programme would later blossom under his leadership into the British Experimental Rotor Program (Berp), from which emerged a revolutionary helicopter blade.