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A comment on The Pentagon will have to live with limits on F-35’s supersonic flights (2020). Parent comment

Re:The Pentagon will have to live with limits on F-35’s supe... by flerchin on Thursday April 15, 2021 @09:52AM (#26820502)
I don't think supersonic cruise was a requirement. F35 has to use afterburners to get supersonic.
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Re:The Pentagon will have to live with limits on F-35’s supe... by hollerith on Thursday April 15, 2021 @11:02AM (#26821316)
Drag increases significantly as the speed approaches Mach 1.0 (which is why commercial airliners stay below about Mach 0.8), but decreases significantly after that. So, just because a plane needs afterburners to attain supersonic speed doesn't mean it needs them to remain in supersonic flight.

https://upload.wikimedia.org/wikipedia/commons/0/0e/Qualitiv...

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