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A comment on Boom Announces Successful Flight of XB-1 Demonstrator Aircraft. Parent comment

Re:Boom Announces Successful Flight of XB-1 Demonstrator Air... by cebu on Friday March 22, 2024 @03:40PM (#39794048)
speed of sound changes with altitude right?
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Re:Boom Announces Successful Flight of XB-1 Demonstrator Air... by cbsmith on Friday March 22, 2024 @04:23PM (#39794432)
Effectively, yes.
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Re:Boom Announces Successful Flight of XB-1 Demonstrator Air... by crznp on Saturday March 23, 2024 @02:47AM (#39797955)
Effectively no! It doesn't depend on pressure. Basically just temperature (Also composition, esp: water content and form).

That relies on assumptions (ideal gas, adiabatic compression) that might break down for supersonic jets, but it's pretty close for the speed of sound.

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