Basically all of them. I would like to compile a list for everybody who's interested in them.
I've got the following for the Ork ships, not sure if these are 100% correct:
Cruisers - 6mm5 x 3mm x 15mm (Kill Kroozer, Terror Ship)
Escorts 3mm5 x 1mm x 1mm (Onslaught, Savage, Ravager)