There are two ways people find the number for specific impulse.
It had a specific impulse of nearly three hundred seconds, in fact.
The amount of fuel used to find specific impulse can be measured in different ways.
When specific impulse is measured as a speed, it has another name.
The most common way to measure specific impulse today uses seconds.
An engine with a higher specific impulse uses fuel better.
This means specific impulse can be used to compare engine performance in any country.
This allows it to achieve a specific impulse of 301s at the Earth's surface.
The higher the specific impulse, the more dazzling the engine.
For each stage the specific impulse may be different.