What is another word for ramjet propulsion?
Pronunciation: [ɹˈamd͡ʒɛt pɹəpˈʌlʃən] (IPA) 
Ramjet propulsion is a type of air-breathing jet engine in which a combustion chamber ignites fuel to create thrust without the need for moving parts. There are several synonyms for ramjet propulsion, including scramjet, supersonic combustion ramjet, and air-augmented rocket. Scramjet, short for supersonic combustion ramjet, is a type of ramjet engine designed to operate at speeds beyond Mach 5 by using shockwaves to compress incoming air before combustion. A supersonic combustion ramjet works by achieving supersonic airflow through the engine, enabling supersonic combustion and increasing its efficiency. Finally, an air-augmented rocket combines a rocket engine with a ramjet engine to improve fuel efficiency as the rocket is propelled by both the rocket's exhaust and the incoming air.
