Rocket propulsion efficiency Calculator

The efficiency of rocket propulsion is often measured by the specific impulse (Isp), which is the ratio of thrust produced to the rate of fuel consumption. The formula for specific impulse (Isp) is:

Where:

  • is the thrust produced by the rocket.
  • Ë™ is the rate of fuel consumption (mass flow rate).
  • is the standard gravitational acceleration (9.81 m/s² on Earth).

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