Spacescifi Posted June 23, 2022 Share Posted June 23, 2022 My Guess? Given how potent AM is I think you only need a single main engine nozzle but it had better be thick and sturdy (to stuff it with cooling apparatus tech). AM is volatile, so I think at best all one could do is send pellets containing AM into the reaction chamber... injecting more for more thrust, less for less. Still, to hold several grams worth of AM per pellet SAFELY would indicate a high level of AM safety manufacturing... likely AM neutral materials because otherwise you need uber magnetic fields and you can't have those reliably with small pellets. Suddenly the idea of a pulsed AM rocket stage sounds easier and safer... mainly because the flow of AM is not constant, you are only feeding discrete packages/pods of AM at a time. Am I right or wrong? Scott Manley said he thinks AM is more likely than fusion to replace chemical rocket staging to orbit. Fusion creates a lot of deadly neutrons which requires a lot of heavy shielding which makes spacecraft heavier than they should be to get off the ground. AM makes a lot of gamma rays which are easier to shield against with shielding not so heavy as would be required for excess neutrons. Even the ambient air would absorb gamma rays! Quote Link to comment Share on other sites More sharing options...
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