I thought I should share my experience of the early history of the Osprey.
The original Mk 1 was built to compete in the 1952 IYRU trials in Holland to replace the Tornado as the two man Olympic dinghy. Although both it and Jack Holts Hornet did well the decision went to the Flying Dutchman which had elements of the design cedited to Uffa Fox's world record holding Jollyboat.
This Osprey Mk 1 was a PLANKED boat with strong resemblance to Ian Proctors successful 1950's Merlin Rockets. The sail emblem had just one aft facing wing on the O and was probably the only one built.