Commercial Pilots who don't know about piston engines.
Commercial Pilots...
While not knocking APS at all because the people who run it are good and decent knowledgable people, I can't help but wonder that all the APS learning is predicated on a "Conforming Engine".
Where can a Commercial pilot, operating possibly many different engines concurrently, find a data plate (or whatever) that says the engine is a "Conforming Engine"?
Seems to me that private owners who know the ins and outs of their own engine would benefit a lot from an APS education but commercial pilots in and out of different machines on a daily basis would be hanging themselves out to dry by not heeding the OEM procedures, without knowing they were operating "Conforming Engines".