OS LA .46 - 3
OS FP .40 - 2
OS Max .40 - 2
OS FP .25 -2
OS .30 S-1
OS .15 And .10 -3 or 4
ST - .56 - 1
ST .60 - 1
Fox .35 Stunt 2 or 3
Fox .29 - 1
Fox Combat Special MK 4 - 2
Fox Blackhead CS - 1
Fox Rocket .35 - 3
Fox .15 Schneurle -
Fox .15 - 2
Cox TeeDee .049, reed .049, PeeWee .020, TeeDee .0.10 - too many to keep track of...
And some Enyas, Royals, Thunder Tiger, K&B, McCoys too.
I really like engines!