TR408 Rocket

An XCOR LOX-Methane engine undergoing a test firing.

"The new TR408 engine is a hybrid, which can run on almost any state of oxygen and methane. It could be all gas, for example, stored at room temperature. Or it could be all liquid, similar to the liquid oxygen/hydrogen that powers the space shuttle." - Universe Today article.

External links

• Northrop Grumman press release
• Universe Today article on the TR408.