Blue Engines

Rocket Engines Designed for Reuse

Blue Engines

Our Approach to Engines

Operationally reusable rockets demand high performance engines capable of deep throttling for soft landings. Built for multiple uses, our family of engines is powering the next generation of rockets for commercial, civil, national security and human spaceflight.

Blue Engines are designed, developed and manufactured at our headquarters in Kent, Washington. We’re now preparing for serial production of our most powerful engine, the BE-4, in Huntsville, Alabama. All our engines and propulsion subsystems are thoroughly tested and qualified in Van Horn, Texas.

The BE-3 engine fires just prior to the New Shepard booster landing on the pad in West Texas.

ENGINE

BE-3

The BE-3 is the first new liquid hydrogen-fueled rocket engine to be developed for production in America in over a decade.

Engine

BE-4

The first ox-rich staged combustion engine made in the U.S. will power the next generation of American orbital rockets.

BE-4 engine nozzles on the factory floor in Kent, Washington.
Rendering of a BE-7 engine.

ENGINE

BE-7

BE-7 is an additively manufactured, high-performance, dual-expander cycle engine, generating 40 kN (10,000 lbf) thrust.

Blue's Engines

Development History

Engine Propellant Thrust
BE - 1 Peroxide 9 kN (2,000 lbf) at Sea Level
BE - 2 Kerosene + Peroxide 140 kN (31,000 lbf) at Sea Level
BE - 3PM Liquid Hydrogen + Liquid Oxygen 490 kN (110,000 lbf) at Sea Level
BE - 3U Liquid Hydrogen + Liquid Oxygen 710 kN (160,000 lbf) in Vacuum
BE - 4 Liquefied Natural Gas + Liquid Oxygen 2,400 kN (550,000 lbf) at Sea Level
BE - 7 Liquid Hydrogen + Liquid Oxygen 40 kN (10,000 lbf) in Vacuum