Other
Bolonkin: The Dev. Of Soviet Rocket Engines
This personal site by Alexander Bolonkin gives an extract from the book "The development of Soviet Rocket Engines" giving a brief historical overview of and the problems encountered by the Soviet rocket industry.
Other
Space Flight Now/air Breathing Rocket Engines
Short article on a experimental air breathing rocket engine.
Other
International Space Station: Propulsion
Information on International Space Station boost procedures. Click to related information.