The company of billionaire Branson, owner of Virgin Airlines, railways, etc. He also founded Virgin Galactic for private spaceflight, with advanced projects in both design and materials.

"Mothership and the Spaceship"

-It has built large motherships carrying launchers that reach space and return to Earth, landing at a large, purpose-built base in the desert. These are the Spaceships.

"Launcher One Rocket"

-Rockets and satellites are also among its projects. But we are interested in their engines.

"Satellite with apogee motor"

-Regarding engines, LOX/Ker fuels are mentioned, but there also are hybrids such as the one below:

"Virgin hybrid engine"

-The engines called "Newton Three" and "Newton Four" are known.

-The Newton Three was used on the first stage of the later Virgin One, with 73,000 lbf of thrust.

-The Newton Four provides 5,000 lbf of thrust and is used in the second stage to place Virgin One into orbit.

-Of the Newton engine series, the One was mounted on the first Virgin One, running on LOX/Ker.

"Newton One test"