Aerospace Engineering > GATE 2016 > Rocket Propulsion
A launch vehicle has a main rocket engine with two identical strap-on motors, all of which fire simultaneously during the operation. The main engine delivers a thrust of 6300 kN with a specific impulse of 428 s. Each strap-on motor delivers a thrust of 12000 kN with specific impulse of 292 s. The acceleration due to gravity is 9.81 m/s2 The effective (combined) specific impulse of the vehicle is _______ S.
Correct : 310:315
Similar Questions
A chemical rocket with an ideally expanded flow through the nozzle produces 5 x 106 N thrust at sea level. The specific impulse of the rocket is 200 s and accel...
Two missiles A and B powered by solid rocket motors have identical specific impulse, liftoff mass of 5600 kg each, and burn durations of tA = 30 s and tB = 70 s...
Consider a cryogenic liquid rocket engine using an expander cycle with liquid hydrogen and liquid oxygen as the two propellants. The mass flow rate of hydrogen...
Total Unique Visitors
Loading......