Characteristic velocity

Characteristic velocity or c ∗ {displaystyle c^{*}} , or C-star is a measure of the combustion performance of a rocket engine independent of nozzle performance, and is used to compare different propellants and propulsion systems. Characteristic velocity or c ∗ {displaystyle c^{*}} , or C-star is a measure of the combustion performance of a rocket engine independent of nozzle performance, and is used to compare different propellants and propulsion systems. c ∗ = p 1 A t m ˙ {displaystyle c^{*}={frac {p_{1}A_{t}}{dot {m}}}}