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specific impulse

   Also found in: Acronyms, Encyclopedia, Wikipedia 0.01 sec.
specific impulse
n.
A performance measure for rocket propellants that is equal to units of thrust per unit weight of propellant consumed per unit time. Also called specific thrust.
specific impulse
n
(Astronautics) the ratio of the thrust produced by a rocket engine to the rate of fuel consumption: it has units of time and is the length of time that unit weight of propellant would last if used to produce one unit of thrust continuously
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But, according to a report in New Scientist, a new engine, called VASIMR (Variable Specific Impulse Magnetoplasma Rocket), will have much more "oomph" than previous ones.
Ion engine may one day power 39-day trips to Mars by Asian News International
The specific impulse (a good measure of performance) was determined from static testing.
To build a better motor: the continued analysis of propellant ... by Journal of the Alabama Academy of Science
Both cast and extruded types offer similar specific impulses.
Pros and cons. (What's Up) by Armada International
 
 
 
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