exhaust velocity

American  

noun

Rocketry.

1. the velocity, relative to a rocket, at which exhaust gases leave the nozzle of the rocket's engine.

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Example Sentences

“It’s a means of determining the relative merits of propellants. By using the number denoting the specific impulse, calculations can be made to determine the exhaust velocity of a rocket and ultimately its overall performance.”

From Literature

The exhaust velocity, though, is enormous—more than ten times that of a chemical rocket—and this makes ion propulsion extremely efficient.

From Economist

If the working temperature rises to 4,500�, the exhaust velocity approaches 24,000 ft. per sec.

From Time Magazine Archive

Since the efficiency of a rocket engine depends largely on its exhaust velocity, the nuclear engine has a big initial advantage, but it has to pay a high price.

From Time Magazine Archive

As again you know, this is good for interplanetary flight because you can run it continuously and it has extremely high exhaust velocity.

From Project Gutenberg