A friend of mine got a pilot license several years ago. He was taught a lot about how and why planes work. With a small plane it's generally expected that a sin

A friend of mine got a pilot license several years ago. He was taught a lot about how and why planes work. With a small plane it's generally expected that a single person can maintain it, the same way it works for cars, isn't it? Of course large jet airliners are another story, because they're large, expensive, mind-blowingly complex, and owned by airlines.