Comments by "Vikki McDonough" (@vikkimcdonough6153) on "" video.

  1. Three questions. First, regarding the gas-generator/staged-combustion cycle, instead of trying to pipe the turbopump exhaust back into the main combustion chamber, why not simply run a small oxygen line over and burn the turboexhaust in its own smaller, secondary chamber? Second, regarding the non-full-flow staged-combustion cycle, why not eliminate the shaft and its sealing issues entirely by using a turboelectric pump - the turbine drives a generator, which sends electricity through cables to power the pump motor? Finally, regarding the combustion-tapoff cycle, why not send the tapped-off gas through a rearward-facing nozzle to recoup the lost thrust?
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