Launch & Propulsion
Isp
Specific Impulse
Specific Impulse (Isp) — A measure of propulsion efficiency, expressed in seconds. Higher Isp means more thrust per unit of propellant. Chemical rockets achieve 250-450s; ion engines can exceed 3,000s.
Frequently asked about Isp
- What does Isp mean in the space industry?
- Specific Impulse: A measure of propulsion efficiency, expressed in seconds. Higher Isp means more thrust per unit of propellant. Chemical rockets achieve 250-450s; ion engines can exceed 3,000s.
- What does Isp stand for?
- Isp stands for Specific Impulse.
- What category of space terminology does Isp belong to?
- Isp is part of the Launch & Propulsion category in space industry terminology.