Sound barrier speed in knots

To break the speed of sound, the aircraft would have to fly at about 574 knots of true airspeed, at an altitude of 35,000 feet.

1. What speed is Mach 1 in knots?
2. What speed is Mach 1 at 40000 feet?
3. How many knots is supersonic?
4. How fast is Mach 1 at 35000 feet?

What speed is Mach 1 in knots?

The speed of sound (Mach 1) varies with altitude and temperature. If an aircraft is travelling at the speed of sound at sea-level then its speed will be 661 knots (760 miles per hour) or if it is travelling at the speed of sound at 30,000 feet then its speed will be 589 knots (677 miles per hour).

What speed is Mach 1 at 40000 feet?

is 660 mph. 40,000 feet is the usual altitude.

How many knots is supersonic?

Supersonic speed is the speed of an object that exceeds the speed of sound (Mach 1). For objects traveling in dry air of a temperature of 20 °C (68 °F) at sea level, this speed is approximately 343.2 m/s (1,126 ft/s; 768 mph; 667.1 kn; 1,236 km/h).

How fast is Mach 1 at 35000 feet?

661 mph is the Speed of Sound at 35,000 feet Event Cache.