0
$\begingroup$

The altitude and speed is shown in the web casts of Falcon 9 missions. Is it possible to estimate the angle of attack or flight path angle?

$\endgroup$
4
  • 2
    $\begingroup$ The angle of attack is the angle between the axis and air flow, for rockets this should always be almost zero. $\endgroup$
    – GdD
    Jul 5, 2022 at 9:01
  • $\begingroup$ @GdD: The Falcon 9 first stage spends several minutes almost "gliding" at a surprisingly low AoA covering a surprisingly large cross range distance. This is done both to decrease heat loads but for RTLS landings also to decrease fuel required for the boost back burn. $\endgroup$ Jul 5, 2022 at 21:38
  • $\begingroup$ I wasn't considering the fly-back part of the profile when I wrote that comment @JörgWMittag, good point. $\endgroup$
    – GdD
    Jul 6, 2022 at 7:37
  • $\begingroup$ Right at liftoff the alpha is 90 degrees if there is any wind. A fun fact I noticed back in the day when looking at shuttle data. $\endgroup$ Jul 6, 2022 at 13:24

0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.