The speed of sound is proportionally less and vary s according to altitude. when ever air craft exceeds the speed of sound it is defined as i mach. those air crafts capable of crossing sound speed is called supersonic.
The threshold for supersonic speed is 761 mph in a temperature like 70 degrees. Supersonic speed is any speed greater than the speed of sound (mach 1) and a speed five times the speed of sound (mach 5?) is referred to as hypersonic speed.
A supersonic plane is one that is flying faster than the speed of sound, or Mach 1. A hypersonic plane flies at a speed of Mach 5, so is much faster than a supersonic plane. Mach numbers are used for speeds greater than the speed of sound.
One half the speed of sound. This is subsonic.
Close! Actually, Mach-1 is the speed of sound. anything above Mach-1 (Mach-(1-5)) is supersonic, all the way up to Mach-5, at which point an object is called "Hypersonic". Sometimes speeds above Mach-10 are referred to as "High-Hypersonic". So, a jet moving at Mach-1 wouldn't actually be traveling FASTER than sound, it would be traveling AS FAST as sound.
One supersonic aircraft is the F-15 Eagle. -Supersonic means it can fly faster than Mach 1, the speed of sound. Most fighter jets today are supersonic, in fact many fly more than twice the speed of sound.
a mach
Supersonic No. The fastest ever flown was mach 3.1 by the SR-71 Blackbird
Mach refers to the speed of sound in air. Typically about 750 mi/hr but it varies faster or slower with temperature from cold to hot respectively. Mach one is one times speed of sound. Mach 3 would be three times speed of sound.
-- Measure the distance between two points.-- Measure the time it takes the jet to fly from one point to the other one.-- The speed of the jet between the two points is(the distance between them)/(the time it takes to fly from one to the other)
speeds lower than the speed of sound is known as the subsonic speed. speeds greater than the speed of sound is supersonic (mach 1) and speeds that are many times above the speed of sound (above mach 0) are known as hypersonic sounds.
Untrue. Supersonic aircraft are very noisy, the only indication that the aircraft passes through the sound barrier is a slight increase in acceleration, the Mach meter number, and an announcement by the pilot.
Different fighter planes have different capabilities, but somewhere between Mach 1 (the speed of sound) and Mach 3 (three times the speed of sound) has been the general norm for fighter planes in the last five decades. Fighter-bombers are capable of supersonic speeds above Mach 1, but fighter-interceptors can do about Mach 2.5.