Broomstick Pilot
Actually, there is an exception to this. When I was at London Gliding Club in the sixties they were building a thing called the 'Osprey'. As I recall, it took about twenty years to complete! Does anybody from LGC know what happened to this creation in the end. I seem to remember it did finally fly)?
Not sure if it is the same 'Osprey' you mentioned but one of our Prune members used to own/fly an Osprey...it was based on a Slingsby Dart 15 I believe and was unique (ie one of a kind),I will contact him and see if he has a photo !
rgds LR