> then a Helicopter is an monumental engineering failure. That's baffling. Engineering is the art of compromise. The helicopter _does_ have many compromises

> then a Helicopter is an monumental engineering failure. That's baffling. Engineering is the art of compromise. The helicopter _does_ have many compromises in it's design, but it's benefits are unmatched by other aerial vehicles. In other words, the benefits outweigh the negatives.