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1

The BE4 and the Raptor use pretty much the same fuel. They deliver very similar thrust, although the BE4 has a significant margin more. The problem is, the entire Vulcan rocket has been designed around an engine that matches the BE4. With the thrust deficit of the Raptor, they would need to add in a third engine. Or resize the whole launcher, invalidating a ...


0

Need to review the number of engines with all of the thrust, throttling, engine runtime, staging timing, payload and structural stress possibilities and implications. Probably needs 3 engines rather than 2 and could at least consider 4. So a number of variants would need to be considered. Following that review it might make sense to increase or even decrease ...


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All of you have to remember that NIAC, at least at the time of the report, did not fund contracts that were easy to do nor simply an engineering challenge - they wanted far-out concepts, not achieveable today, yet not violating any known laws of physics. Yes, we did look at structural mechanical properties of materials versus temperature, as well as payload ...


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At least in the near future, they will mostly be recruiting from the Indian Air Force. So prepare for AFCAT. There is another way - earn lot of money. It is speculated that a single seat in a free-flyer SpaceX Dragon costs over $25M https://twitter.com/DJSnM/status/1439470685064073219 With Starship, that figure could drastically come down (an order of ...


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