How to use in-sentence of “specific impulse”:
– When the specific impulse is higher, less fuel is needed to make the rocket perform at a certain level.
– When specific impulse is measured as a speed, it has another name.
– The other common way to measure specific impulse is in meters per second, which is also called effective exhaust velocity.
– So, a fuel is more efficient if the specific impulse is higher.
– The specific impulse for model rocket motors is much lower than for many other rocket motors because the black powder is used as a fuel.
– This means specific impulse can be used to compare engine performance in any country.
– In a race between two rockets with the same amount of fuel and two different engines the one with the more powerful engine will take an early lead, but when it burns down all its fuel, the rocket with higher specific impulse will still have some fuel left and will continue to accelerate.
– The most common way to measure specific impulse today uses seconds.
