Originally Posted by
851Pilot
Not every Mk 3 was built with spoilers; the 5 or 6 we had at Halton in '64/'65 certainly didn't have them (I think I woiuld have noticed because I flew them all at some time during my Proficiency course) although one was delivered in about 1966 after being refurbished at Slingsbys, so maybe the spoilers were a retro fit? I'm not sure.