2
$\begingroup$

Is there any relationship between the sound emitted from a rocket engine and the amount of thrust it gets at surface temperature and pressure?

$\endgroup$
  • $\begingroup$ related: space.stackexchange.com/questions/17929/… $\endgroup$ – Organic Marble Jun 10 '18 at 23:19
  • $\begingroup$ In theory a rocket with two engines of the same type will be 3 dB louder than the rocket with only one. 5 engines will 7 dB louder. $\endgroup$ – Uwe Jun 11 '18 at 17:50
1
$\begingroup$

The short answer is yes! I've heard the relationship referred to as "acoustic efficiency" (i.e. how much of the power of the rocket essentially makes sound).

I don't have a lot of experience in the relevant areas, but this NTRS paper has some references that might let you explore the question. (Bonus for space archaeologists: as late as 1999 (which I infer from the reference dates and the URL) NASA was producing electronic copies of papers by printing them out (probably from Word) and re-scanning them...skewed.)

$\endgroup$
  • $\begingroup$ May be they lost the file of the paper but not the printout. In an old book about Word97 problem solving I found nothing about printing to a PDF file instead of a hardware printer. $\endgroup$ – Uwe Jun 11 '18 at 12:37

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.