Aerojet is currently the leading United States developer of ramjet and scramjet propulsion systems for missiles and is emerging as the leader in combined cycle propulsion for hypersonic cruise and space access applications. Aerojet emphasizes performance, affordability and reliability in its airbreathing propulsion systems.

Aerojet combines a strong propulsion heritage with innovative manufacturing techniques and advanced material technologies to provide high value airbreathing systems for the Department of Defense, NASA and other government prime customers.