Specific Impulse: Rocket Engine, Jet Impulse, Fuel Consumption, Propellant, Ion Thruster, Space Shuttle Main Engine

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Specific impulse is a way to describe the efficiency of rocket and jet engines. It represents the impulse-change in momentum-per unit of propellant. When referring to the specific impulse it just means to divide the impulse by the unit mass or unit weight. The higher the specific impulse, the less propellant is needed to gain a given amount of momentum. Specific impulse is an useful value to compare engines, much like miles per gallon or litres per kilometre is used for cars. A propulsion method with a higher specific impulse is more propellant-efficient.

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Pagina's: 140, Paperback, Betascript Publishers