The Rotodyne didn't stand a chance once the Government decided that all British rotorcraft should be under the control of one company, Westlands.
SARO's Scout / Wasp survived, Bristol's Belvedere staggered on - just, but Fairey's Rotodyne was dropped as Westlands thought they had a competing design of their own. Interestingly this was a version of the Tilt Wing concept of Bristol's Chief Designer, Raoul Hafner who just happened to move from Bristol's to become head of development at Westlands.