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Aeronautical Engineering/What engine on a jet engine is critical? On a 4-engine

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Expert: - 9/16/2006


Question
·What engine on a jet engine is critical? On a 4-engine

Answer
Maurice

All engines are important, but a 4-engine aircraft can fly on three engines in an emergency.  Assuming two on each wing, I would rather lose an inboard than an outboard engine because the yawing moment would be less than if I lost an outboard engine.

You might be able to limp home with two out, one on each wing, but if two engines on one wing go out, you are done -  fini.

I hope this answers your question.

Paul

Aeronautical Engineering

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Paul Soderman

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Aeronautics, Fluid Mechanics, Aeroacoustics, Noise Control, Muffler Design, Wind Tunnel Research.... I know nothing about India - do not ask about schools, jobs, application requirements, career choices, etc. for India. Please, no text message verbiage; I prefer full words in full sentences. Thanks.

Experience

38 years as research engineer at NASA

Publications
AIAA, NASA

Education/Credentials
B.S. and M.S. Aeronautical Engineering - U. of Washington Graduate work Standford U.

Awards and Honors
AIAA Associate Fellow (American Institute of Aeronautics and Astronautics)

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