SOSL,
Sir Colin Terry was one of those Engineers who had wings through the scheme you mention. he told me all about it when I attended a presentation to a good mate of his award for Airworthines at BZN circa 2004 ish. At the time he had retired form the Cheif Engineers job and held VR Flying Officer tabs providing Air Experience for cadets and UAS or something. He had shed the gold braid. It was odd seeing him alongside my Gp Capt in the photo shoot.
Now I found him a nice guy but some I worked with who had fallen foul of his temper in the past thought othrewise. He was a Director of Meggitt at the time and offered his assistance to my project. A few weeks after we met at the Farnborough Airshow in the Meggit challet. True to his word he made it known to the Meggit guys that he was aware of our project. They did not let us down! Perhaps they knew of his reputation for not taking prisoners!