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Guest Pilot533

Bypass ratio

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Guest Pilot533

Is a High bypass turbofan better than a low bypas turbofan? What is the advantage of one over the other? The JT8D is a low bypass engine and is one of the most used in the world, but pretty much all large jets and 737's use high bypass engines, whats the advantage?

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Guest zzmikezz

Yes. The ones with high bypass ratios are more fuel efficent. And pound for pound they develop more thrust because the fans act as propellers. (Not joking.)

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