Why Twins Are Trickier Than Singles
Studying the image above should provide some insights into the fundamental physics and aerodynamics of conventional twin-engine airplanes. Obviously, when one engine is turning and the other is “burning,” asymmetric thrust is one result. (Others include losing 50 percent of the airplane’s power, and something like 80 percent of its performance.)
Maintaining heading, if not climb performance, requires finding a pitch, yaw and roll attitude presenting the least drag and offering the most thrust. I liken it to balancing the airplane on the head of a pin. — J.B.
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