RE: RE: starship-design: unmanned missions

[Paul Anderson <madhobbyist@geeky1.ebtech.net>]

On Thu, 12 Feb 1998, Steve VanDevender wrote:

> 
> It was definitely digital.  Analog computers have too many moving
> parts and aren't going to work well during launch or landing
> operations.
> 
Who said analog computers need to have any moving parts?  You're thinking
mechanical computer.  AAMOF, analog computers use operational amplifiers
and different voltages to represent different numbers, i.e. 1-10 volts(it
starts at 1 instead of zero so that you can go below 0).  They used two of
them at ground control during the early apollo missions for calculating
trajectory.  TTYL!



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Paul Anderson
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