 Mach Number (NASA Glenn Research Center)

Online text: www.grc.nasa.gov/www/k-12/airplane/mach.html

Issued and hosted by NASA Glenn Research Center. The footer credits Nancy Hall as editor and NASA official; no individual author byline is established. Last updated 13 May 2021, an online revision date.

Cited passages: speed-ratio definition; gas and temperature dependence; flight regimes; disturbance propagation and wind-tunnel similarity.