FAQ

What is the Specific Impulse?
Specific Impulse is be defined as the ratio of the thrust produced to the weight flow of the propellants in case solid propellant rocket motors. Specific Impulse is usually measured using the Second for Time. Note that the value of Specific Impulse is always positive.
Can the Specific Impulse be negative?
No, the Specific Impulse, measured in Time cannot be negative.
What unit is used to measure Specific Impulse?
Specific Impulse is usually measured using the Second[s] for Time. Millisecond[s], Microsecond[s], Nanosecond[s] are the few other units in which Specific Impulse can be measured.
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