Last April, we caught wind of a very impressive rocket engine ... the engine using alcohol fuel and LOX pressurized by Helium, but that plan was changed to use Nitrogen as the pressurant.

While we’re reluctant to say it for fear of being misinterpreted, the new liquid fuel rocket engine being built by Copenhagen Suborbitals is one of the most impressive, daring, and nearly the ...

The A-5 ran on a mixture of gasoline and liquid oxygen, with nitrogen pressurizing the fuel. The key innovation in the A-5 was its gyroscopic stabilization. Gyroscopes mounted near the rocket's ...