Wadd HC and others:
Some footage here of Canberra start ups. My Dad, Eric (Started on the OCU at Bassingborne in 54 finsished on the OCU at Wyton before going to RAE) can be seen struggling with his ear defenders. He is now deaf!
We have several carts at home. the older ones are certainly better made and better brass. I spent many hours with Brasso/ wadpol.
One of my last EWAU design jobs was the bigger AvPIN tank cover for the 9. correcting a FRA Bournmouth cock up where the leading edge cover interfered with the cap.