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Old 1st November 2019 | 18:30
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tdracer
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Originally Posted by mrfox
The crossover point was mentioned to be around 5:1 bypass - right around where the last gen turbofans live.
Actually, 5 to 1 is around where the first generation of 'big' turbofans lived - JT9D, CF6-6/CF6-50. It's gone up considerably since then with the latest generation approaching 10.

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