exhaust velocity

noun

Rocketry.

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

Example Sentences

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

Read more on Economist

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

Read more on 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.

Read more on 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.

Read more on Project Gutenberg