Determine the component of gravitational force in the direction of the flight path if the angle of the flight path with the horizontal is 30°, angle of direction of thrust with the horizontal is 20° and mass of the vehicle is 300 kg. Assume the acceleration due to gravity to be 9.8 m/s2.

Flight Performance topics include: Gravity free drag free space flight performance, vehicle forces in the atmosphere, motion basic relations, vehicles propulsion system effect, space flight, exhaust plumes aerodynamic effect, flight stability, flight performance on military missiles, flight maneuver and vehicles. The fundamental measure of rocket engine performance is the mass of propellant that can be propelled out the back of the rocket and at what speeds. The performance of a rocket engine depends on the thrust, which is generated relative to the size or weight of the propulsive... Show more

Flight Performance topics include: Gravity free drag free space flight performance, vehicle forces in the atmosphere, motion basic relations, vehicles propulsion system effect, space flight, exhaust plumes aerodynamic effect, flight stability, flight performance on military missiles, flight maneuver and vehicles.

The fundamental measure of rocket engine performance is the mass of propellant that can be propelled out the back of the rocket and at what speeds. The performance of a rocket engine depends on the thrust, which is generated relative to the size or weight of the propulsive device. 

The most important metric for the efficiency of a rocket engine is specific impulse, which is measured as a speed or a time. The higher the specific impulse, the less propellant is required to provide the desired impulse. 

The performance of a rocket is determined by the propellant flow rate (Mo) in kilograms/second and the effective exhaust velocity (Ve) in meters/second. 

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