"John D. Giorgis" <[EMAIL PROTECTED]> wrote:
>At 01:32 AM 3/3/01 -0000, Josh wrote:
> >>Is the fuel really that expensive?
>
>It is also a problem of mass.  An advantage of using booster rockets is
>that when the fuel is expended, the storage area for the fuel is removed
>from the craft.   For a reusable space craft you have to constantly lug
>around all of that casing for fuel that is long gone.

I understand that completely. From a physics point of view, reusable or SSTO 
spacecraft are a bad idea. From an economic point of view, though, which 
includes human effort in the equation, I think the answer is vastly 
different.

Joshua

_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com

Reply via email to