All Questions
34
questions
4
votes
2
answers
9k
views
Calculate Falcon 9 CO2 emissions
Falcon 9 uses Merlin 1 Kerosene based engines. Are there 4 Merlin 1 engines? This seems simple to calculate:
Number of Merlin Engines x Merlin 1 fuel capacity(gallons) x Kerosene to CO2 Production.
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- 43
13
votes
5
answers
2k
views
What are the challenges in Falcon 9 "full thrust" (v1.2) with densified propellant?
SpaceX has announced an upgrade to their Falcon 9 rocket, achieving greater thrusts with, as far as I can tell, the same rocket motors (at least, they apparently still call the motors "Merlin 1D"). ...
- 1,542
38
votes
6
answers
9k
views
Why did it take so long for methane to be used as a rocket propellant?
SpaceX have put methane on the map as a rocket fuel, but they weren't the first to consider its use. The first experiments in building a rocket engine that uses methane date back to 2007.
Now methane ...
- 128k
8
votes
1
answer
754
views
SpaceX Falcon 9 Reusable first stage propellant for return
How much propellant is required to return the Falcon 9 Reusable's first stage after separation?
- 10.1k