Template:Mach
From FEInfobase
Mach 1 (1,225 km/h; 761.2 mph; 661.7 kn) at sea level (atmospheric pressure) and temperature of 21 °C (70 °F)
Mach 2.5 (3,063 km/h; 1,903 mph; 1,654 kn) at sea level (atmospheric pressure) and temperature of 21 °C (70 °F)