That is until one starts to make his own engines !!Not much machining involved in planes
HA! Even if I had the capability (which I don't) I would never fly a plane with the kind of investment that a shop built engine would entail. My motto is never fly a plane you can't afford to crash. There's a lot of electronics in a plane (transmitter, receiver, half dozen servos) any one of which can make your plane do a figure 9. I have a biplane that I've been flying 20 times a season for 5 years without incident and I have another plane that has had 3 crashes do to various equipment failures in one season. Chinese electronics are a crap shoot.That is until one starts to make his own engines !!
Aint dat da troof!Making custom pats for all these flying contraptions is what originally got me into machining. Why buy a part off the shelf for a buck when you can spend a week making it yourself for $20?????