GF - re the Royal Flight potential SK use. A frame was secretively ordered in 77 and got as far as being painted in said RF colours. It got caught up in the politics of "The Winter of Discontent" in '79 and PM Callaghan ordered its cancellation. It became the 16th Crab Mk3 (the original order being for only 15 in '77). ZA105 is its mil reg, whereas the 1st 15 were all XZ series. Oh what might have been!
