Propulsion Calculator

Thermal Efficiency of a SABRE Engine Calculator

The SABRE (Synergetic Air-Breathing Rocket Engine) is a revolutionary engine concept designed by Reaction Engines Limited. It is intended to be a combined-cycle engine capable of operating as both a jet engine and a rocket engine. Due to its unique design, the traditional thermal efficiency formula for heat engines may not be directly applicable. In […]

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Thermal Efficiency of a Lockheed C-130J Super Hercules Engine Calculator

The Lockheed C-130J Super Hercules is a military transport aircraft with turboprop engines. Turboprop engines are a type of gas turbine engine, and their thermal efficiency can be assessed using specific fuel consumption (SFC), which is the amount of fuel consumed per unit of thrust or power produced. The thermal efficiency is expressed mathematically as:

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Thermal Efficiency of a Lockheed Martin F-35 Lightning II Engine Calculator

The Lockheed Martin F-35 Lightning II is a family of single-seat, single-engine, all-weather stealth multirole fighters. Like other jet-powered aircraft, the thermal efficiency is not typically expressed through a direct formula as it would be for a heat engine. However, we can discuss relevant concepts and parameters. The thermal efficiency is expressed mathematically as: where:

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Thermal Efficiency of a Lockheed Martin A-4AR Fightinghawk Engine Calculator

The Lockheed Martin A-4AR Fightinghawk is a major upgrade of the McDonnell Douglas A-4M Skyhawk attack aircraft developed for the Argentine Air Force which entered service in 1998. The program was named Fightinghawk in recognition of the F-16 Fighting Falcon, which was the source of its new avionics. The thermal efficiency is expressed mathematically as: where: ηth​ is the thermal efficiency, Tv​ is the thrust produced by

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Thermal Efficiency of a Lockheed F-22 Raptor Engine Calculator

The Lockheed Martin/Boeing F-22 Raptor is an American single-seat, twin-engine, supersonic all-weather stealth fighter aircraft developed for the United States Air Force (USAF). As a product of the USAF’s Advanced Tactical Fighter (ATF) program the aircraft was designed as an air superiority fighter, but also incorporates ground attack, electronic warfare, and signals intelligence capabilities. The prime contractor, Lockheed Martin, built most of the F-22’s airframe and weapons systems and conducted

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Thermal Efficiency of a Lockheed F-117 Nighthawk Engine Calculator

The Lockheed F-117 Nighthawk is a retired American single-seat, subsonic twin-engine stealth attack aircraft developed by Lockheed‘s secretive Skunk Works division and operated by the United States Air Force (USAF). It was the first operational aircraft to be designed with stealth technology. The thermal efficiency is expressed mathematically as: where: ηth​ is the thermal efficiency, Tv​ is the thrust produced by the engine, Vjet​ is the jet velocity, ​ṁf is the

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Thermal Efficiency of a Lockheed F-16 Fighting Falcon Engine Calculator

The General Dynamics F-16 Fighting Falcon is an American single-engine supersonic multirole fighter aircraft originally developed by General Dynamics for the United States Air Force (USAF). Designed as an air superiority day fighter, it evolved into a successful all-weather multirole aircraft. Over 4,600 aircraft have been built since production was approved in 1976. The thermal efficiency is expressed mathematically as: where: ηth​ is the thermal efficiency, Tv​ is the thrust produced

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Thermal Efficiency of a Lockheed F-104 StarFighter Engine Calculator

The Lockheed F-104 Starfighter is an American single-engine, supersonic air superiority fighter which was extensively deployed as a fighter-bomber during the Cold War. Created as a day fighter by Lockheed as one of the “Century Series” of fighter aircraft for the United States Air Force (USAF), it was developed into an all-weather multirole aircraft in the early 1960s and produced by several other nations, seeing widespread service outside the United States.

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Thermal Efficiency of a Lockheed F-94 Starfire Engine Calculator

The Lockheed F-94 Starfire was a first-generation jet powered all-weather day/night interceptor aircraft designed and produced by Lockheed Corporation. It was the first operational United States Air Force (USAF) fighter equipped with an afterburner as well as being the first jet-powered all-weather fighter to enter combat during the Korean War. The thermal efficiency is expressed mathematically as: where: ηth​ is the thermal efficiency, Tv​ is the thrust produced by the

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Thermal Efficiency of a Lockheed P-80 Shooting Star Engine Calculator

Thermal efficiency is a measure of how well an engine or a system converts the heat energy from fuel into useful work. For aircraft like the Lockheed P-80 Shooting Star, thermal efficiency is a critical factor in evaluating the overall performance of the propulsion system. For the Lockheed P-80 Shooting Star, which was equipped with

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