Bernhard Auzinger wrote:
I reach about 740 knots at 40000 feet. That are about 380 m/s. At sea level, sonic speed is about 340 m/s. I know, that sonic speeds decreases depending on air pressure an temperature. I didn't know, that it decreases that much. Does it mean, that the sonic speed at 40000 feet is about 190 m/s?
Given 190 m/s = 623 ft/s http://www.grc.nasa.gov/WWW/K-12/Missions/Jim/Project1ans.htm So 190 m/s must be pretty close. Erik _______________________________________________ Flightgear-users mailing list [email protected] http://mail.flightgear.org/mailman/listinfo/flightgear-users 2f585eeea02e2c79d7b1d8c4963bae2d
