Propulsion Calculator

The propulsive efficiency (ηp) of a piston engine in an aircraft measures how effectively the engine converts the energy from the combustion of fuel into useful thrust for propulsion. Piston engines are typically found in small aircraft and operate on the principle of converting reciprocating motion into rotational motion. In SI units, the formula for […]

Scramjet engines are air-breathing engines designed for high-speed flight, particularly in the hypersonic regime. The propulsive efficiency (ηp) of a scramjet engine measures how effectively the engine converts the energy from the combustion of fuel into useful thrust for propulsion. In SI units, the formula for calculating the propulsive efficiency of a scramjet engine is

Ramjet engines are a type of air-breathing jet engine designed for high-speed flight. Unlike traditional jet engines, ramjets do not have moving parts and rely on the forward motion of the engine to compress and slow down incoming air. The propulsive efficiency (ηp) of a ramjet engine measures how effectively the engine converts the energy

The propulsive efficiency (ηp) is typically defined for air-breathing engines like turbofan or turboprop engines, which are used in aircraft. Turboshaft engines, on the other hand, are typically used in helicopters and rotorcraft and have different characteristics. These engines are used to turn a rotor to generate lift, and their efficiency is generally measured differently

The propulsive efficiency (ηp) of a high-bypass ratio (HBR) turbofan engine is a measure of how effectively the engine converts the energy from the combustion of fuel into useful thrust for propulsion. High-bypass ratio turbofan engines are known for their efficiency due to the significant contribution of bypass air to thrust. In SI units, the

The propulsive efficiency (ηp) of a turboprop engine is a measure of how effectively the engine converts the energy from the combustion of fuel into useful thrust for propulsion. Turboprop engines are used in aircraft where a combination of jet propulsion and propeller-driven thrust is desired. In SI units, the formula for calculating the propulsive

The propulsive efficiency (ηp) of a turbofan engine is a measure of how effectively the engine converts the energy from the combustion of fuel into useful thrust for propulsion. Turbofan engines are more efficient than turbojet engines because they harness the energy from both the jet exhaust and the bypass air. In SI units, the

The propulsive efficiency (ηp) of a turbojet engine is a measure of how effectively the engine converts the energy from the combustion of fuel into useful thrust for propulsion. In SI units, the formula for calculating the propulsive efficiency is as follows: ηp = (2 * V * (Vj – V)) / (g * (Vj^2))

The thrust of a solid propellant rocket in vacuum conditions is calculated in a similar manner to other types of rockets. It depends on the rate of expulsion of the mass of propellant and the effective exhaust velocity. However, solid propellant rockets have some unique characteristics that affect the calculation. Here’s how you can calculate

The thrust of a rocket in a vacuum, also known as vacuum thrust, is the force generated by the rocket engine when operating in the absence of an atmosphere. In vacuum conditions, there is no air to push against, so the rocket relies solely on the expulsion of mass to generate thrust, following Newton’s third