Upgently,
I see the hit on the frame, and for me there was never a small arms hit that didn't pose a threat. Good picture. Not sure if you know the personnel involved in the photo, but I rather suspect that the chap on the left is a GE called Eddie Botham, who was the Flt Sgt i/c Ground Engineers in my day. Thanks for showing us this one.
Nimbev,
Interesting question that one. As an ex AGE, I'm not sure when they first started, or who the first few were. I hope though that their use has been beneficial on routes.
Smudge