In aerodynamics, hypersonic speed refers to speeds much faster than the speed of sound, usually more than approximately Mach 5. [1][2][3]

Mach is the ratio of an object's speed to the speed of sound. For example, something traveling at Mach 5 is traveling at 5 times the speed of sound. The speed of sound varies depending on many factors. …

Jul 28, 2023 · Mach 5 is approximately 3,836.35 miles per hour. Mach measures the speed of sound, so the exact number of Mach 5 will vary depending on the medium an aircraft flies through when it …

The local speed of sound, and hence the Mach number, depends on the temperature of the surrounding gas. The Mach number is primarily used to determine the approximation with which a flow can be …

Speeds greater than five times the speed of sound (Mach 5) are often referred to as hypersonic. Flights during which only some parts of the air surrounding an object, such as the ends of rotor blades, …

Mach is a unit of speed. Mach is the ratio of a body's speed to the speed of sound in the surrounding medium, normally air. Miles per hour (mph or mi/h) is a unit of speed.

Oct 31, 2025 · The actual ground speed equivalent of Mach 5 varies considerably with atmospheric conditions, most notably temperature and altitude. At standard sea level conditions, Mach 5 …

Jul 11, 2025 · When anything flies faster than Mach 5.0, we call it travelling at hypersonic speed. Only experimental vehicles, spacecraft, and the fastest military projects have flown this fast.

The Mach 5 is a unique car. With manual gears (as of The Secret Engine) and a top speed of ~250 mph (as of Speed Racer on Super NES) making this a capable machine. The Mach 5 is an open roof …

May 13, 2021 · For speeds greater than five times the speed of sound, M > 5, the flow is said to be hypersonic. At these speeds, some of the energy of the object now goes into exciting the chemical …