earlwb

OPS is gone, the three fellows who ran it under their initials all split up from each other.
Novarossi and Picco may be only making RC car engines now. They have a good market there, but not so much otherwise. So they have have stopped making airplane engines.

There is a company that makes many brands of RC car engines. But I forget who they are at the moment. But their engines wind up in many RC cars where people want lower cost engines.