These include the issues of cooling the tightly-packaged Rocket engine, together with ensuring the volatile HTP (high test peroxide) doesn't decompose before it reaches the rocket chamber
and--in effect--become a bomb.
At this stage, the temperature inside the rocket chamber
soars and ignites the rocket fuel, which sends out a long, thin, orange flame and produces thrust.
Because all this is in the same rocket chamber
, the aircraft can take off and land in the same way as a conventional jumbo jet.
To achieve this, they installed precision shutdown ports on the rocket chamber
that, when opened in flight, reduced the chamber pressure so abruptly that the propellant was snuffed out.
We focused strongly on the injection systems of the rockets to produce the optimum distribution of liquid hydrogen and liquid oxygen to avoid combustion instability within the rocket chamber
Liquid rocket fuels and the oxidizer are held separately in large tanks and then Fed into the rocket chamber
, where they mix and burn.