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Determine the rocket thrust coefficient for a total thrust of 20 kN, chamber pressure of 500 kPa and a throat diameter of 10 cm.

Determine the rocket thrust coefficient for a total thrust of 20 kN, chamber pressure of 500 kPa and a throat diameter of 10 cm. Correct Answer 5.09

Thrust coefficient CF = T/PoA*. A* = πd2/4 = 78.53 cm2. ∴ CF = 20,000/(500 x 1000 x 78.53 x 10-4) = 5.09.

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