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Questions regarding equipment used to propel a spacecraft or a rocket. Questions about attitude control jets should be tagged "attitude".

3 votes
1 answer
248 views

Rocket engine with lowest Isp to reach orbit

There is a page at Wikipedia that compares orbital engines but some engines are missing Isp value and the list may be incomplete. … I am primarily interested in first stage engines but mentioning other stages is possible. …
  • 1,353
0 votes
1 answer
187 views

Highest Isp achieved with nitrous oxide as oxidizer

Both hybrid and liquid engines can be considered. Not considering nitrous oxide monopropellant since it probably would perform the worst (is that true?). …
  • 1,353
3 votes
1 answer
569 views

Open source liquid rocket engine

Is there an open source bi-propelant liquid rocket engine that would have all the documentation, computations, test results and 3D design files (CAD) freely accessible?
  • 1,353
7 votes

Open source liquid rocket engine

Several papers have been published on liquid rocket engines. Below is a collection of some. Some links are from ResearchGate so you need an account there (free for academics/students). … : Tri-D, Ignus-I, Callan, Ignus-II Tri-D (no paper) Ignus: Designing and Testing Liquid Engines for Additive Manufacturing (presentation) Colossus - Liquid Rocket Engine Static Test Stand Design Proposal …
  • 1,353
6 votes
2 answers
480 views

Solid state thrust vectoring

vector by vector addition of thrusts of individual engines. … I am interested in classical bell nozzle engines mainly. …
  • 1,353