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starship-design: Re: Re: Fwd: Re: starship design

KellySt@aol.com writes:
 > You have a lot of numbers, but I don't know where you got them from.  How 
 > does a 20,000 pound engine with shielding give 60,000 pounds of sustained 
 > thrust?  Where do you get those weight numbers from?

Uh, Kelly, an engine can produce more thrust than its weight.