The GE90 engine, found only on Boeing’s 777 aircraft, has the highest bypass ratio of any commercial turbofan engine made at 9:1.  It also has the world record for the most power ever produced by a single commercial engine at 127,900lbs of thrust. 

Can you name the first commercially available turbo-fan and it’s bypass ratio and thrust?

The answer is after the fold.

Welcome to the Rollys Royce Conway.  It’s bypass ration was just .25 and its maximum thrust was only 17,000lbs.  It would take nearly 7 Conway engines to equal just one GE90 115 engine.

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