catapults
Sp.2
Apologies, you are probably correct,as I was looking at a picture of a Seafire 17 going off TRIUMPH and superimposed dates.First SPITFIRE arrested landings, free t/o, and catapult t/o were on Christmas 1941, by Lt-Cdr P Bramwell, Mk 5 b, BL676 off ILLUSTRIOUS,. 5b`s were then modified and became Seafire 1b
Sorry ,no further details on RN history.