Fairey Ultra-Light Helicopter trials
Does anyone who worked at RAE Thurleigh remember the Fairey Ultra-Light helicopter G-APJJ being mounted on top of a bus for rotor performance trials of some description? I should be grateful for any information at all, including dates and personal comments, but especially any images of this setup for a history of the Midland Aircraft Preservation Society which acquired 'PJJ on loan from the then College of Aeronautics at Cranfield in the mid-1970s.