November 2023

The engines are used on the first stage of the Proton launch vehicle and use an oxidizer-rich staged combustion cycle to power the turbopumps. The propulsive efficiency is a crucial parameter in evaluating the performance of a rocket engine, indicating how well it converts propellant energy into useful thrust. Practical rocket engines often have propulsive efficiencies less than 100% […]

A hypergolic propellant is a rocket propellant combination used in a rocket engine, whose components spontaneously ignite when they come into contact with each other. The two propellant components usually consist of a fuel and an oxidizer. The main advantages of hypergolic propellants are that they can be stored as liquids at room temperature and that engines which are powered by them are easy

The Aerojet Rocketdyne RS-25 is a liquid rocket engine that has been used on the Space Shuttle orbiter. It’s important to note that specific details such as the heating value of the propellant, mass flow rates, and specific impulse values would need to be obtained from engine performance data or technical specifications for the specific

The SABRE (Synergistic Air-Breathing Rocket Engine) is a propulsion concept designed for space launch vehicles. It is being developed by Reaction Engines Limited. SABRE is a unique engine that combines air-breathing and rocket propulsion in a single system. Its air-breathing mode operates in the atmosphere like a jet engine, while it transitions to a rocket

The Lockheed Martin F-35 Lightning II is a family of single-seat, single-engine, all-weather stealth multirole fighters. The F-35 can be equipped with different engines depending on the variant. One common engine used in the F-35 is the Pratt & Whitney F135 turbofan engine. It’s important to note that specific details such as the heating value

The A-4AR Fightinghawk is an upgraded version of the A-4M Skyhawk, an attack aircraft originally designed by Douglas Aircraft Company. The A-4AR variant was upgraded by Lockheed Martin. It’s important to note that specific details such as the heating value of the fuel and the mass flow rate would need to be obtained from engine

The Lockheed Martin F-22 Raptor is an advanced fifth-generation fighter aircraft powered by two Pratt & Whitney F119 turbofan engines. It’s important to note that the F-22 Raptor uses advanced technologies, including thrust vectoring, supercruise capability, and stealth features. Specific details, such as the heating value of the fuel and the mass flow rate, would

The Lockheed F-117 Nighthawk is a stealth ground-attack aircraft that used twin jet engines. It’s important to note that the F-117 Nighthawk may have used different engine variants throughout its production, and specific details, such as the heating value of the fuel and the mass flow rate, would need to be obtained from engine performance

The Lockheed Martin F-16 Falcon is a multirole fighter aircraft that typically uses a single jet engine. For jet engines like those used in the F-16, the propulsive efficiency is often represented by the thermal efficiency of the engine. It’s important to note that the F-16 Falcon may have used different engine variants throughout its

The Lockheed F-94 Starfire was a first-generation jet-powered all-weather interceptor aircraft. For jet engines like those used in the F-94, the propulsive efficiency is often represented by the thermal efficiency of the engine. The propulsive efficiency is a crucial parameter in evaluating the performance of a rocket engine, indicating how well it converts propellant energy