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Posted by John Mianowski on February 28, 2008, 2:49 pm
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On Feb 28, 11:15 am, fairwa...@gmail.com (Derek Lyons) wrote:
> >On Feb 27, 9:34 pm, fairwa...@gmail.com (Derek Lyons) wrote:
>
> >> >Launching Eastward gives you the speed of the Earth's rotation (almost
> >> >1000 mph @ equator) in your favor. Launching Westward, you'd have it
> >> >working against you.
>
> >> That was a Big Deal back in the stone ages of the 1950's. Like so
> >> much else that was a Big Deal back then, it is essentially meaningless
> >> now.
>
> >I don't know about that. A nearly 2000 mph swing in the speed you
> >start with can have a fair effect on how much fuel you need to get to
> >orbital speed, & hence the payload you can launch with a given
> >vehicle. I think it's a valid consideration & still favors launching
> >Eastward over water.
>
> It favors launching eastward, yes. But my point is that people
> seemingly fail to understand the difference between 'favors' and
> 'requires'.
Fair enough.
JM
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