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Old 07-26-2021, 02:05 PM   #2
Fred Brackin
 
Join Date: Aug 2007
Default Re: Spaceships: How to take off?

Quote:
Originally Posted by MaryAnn View Post
Most systems have horrendous acceleration in G. In addition, decent acceleration systems have an awful delta-V in mps. What system is the best to take off from Earth without dropping nuclear bombs on the task (Orion Drives)?
HEDM is first, Nuclear Thermal Rocket is second and Antimatter Thermal Rocket is third for reason of fuel cost if nothing else. With unlimited budgets you might get a little bettter fuel enconomy with the Ram-Rocket option.

Oh, there was an lmplied bias against Superscience! drives in your post (also one about takign off from Earth) so I assumed you didn't want those. Reactionless Thrusters (above Rotary) are usable if Superscience! is allowed and Contragravity makes lift-off with almost anything possible.
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