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Re: Laser Aperture Size
- To: Kelly Starks x7066 MS 10-39 <kgstar@most.fw.hac.com>
- Subject: Re: Laser Aperture Size
- From: Kevin C Houston <hous0042@maroon.tc.umn.edu>
- Date: Fri, 15 Mar 1996 13:01:28 -0600 (CST)
- cc: Kelly Starks x7066 MS 10-39 <kgstar@most.fw.hac.com>, Brian Mansur <bmansur@oc.edu>, "L. Parker" <lparker@destin.gulfnet.com>, David <David@InterWorld.com>, jim <jim@bogie2.bio.purdue.edu>, KellySt <KellySt@aol.com>, rddesign <rddesign@wolfenet.com>, Steve VanDevender <stevev@efn.org>, "T.L.G.vanderLinden" <T.L.G.vanderLinden@student.utwente.nl>, zkulpa <zkulpa@zmit1.ippt.gov.pl>
- In-Reply-To: <v01530505ad6f66b4408f@[151.168.146.187]>
Kelly:
> !!! If your getting about a G of decel out of a charged sail, You could
> adgust the sail so it only reflected absorbed enough to keep the sail
> charged. (It would act like a sheet as long as the voltage could stop the
> mass farther out then the gaps in the mesh.) Given that that power should
> be much less than the amount to push the ship at 1G. You'ld cut your
> forward thrust, and THE SAIL WOULD ACT LIKE A BRAKE! That might be the way
> to get your ship stoped at the target system.
>
>
> Why didn't you follow up on, or talk more about this? Whats the dragdrop off?
>
As I said, The dropoff is rapid (from the crew's point of view) and
leaves the ship going about .88(I have the numbers at home) of C. I n
addition, the sail would be subjected to extreme stress. While this
might be acceptable if you are expecting to use a lineac to finish your
decell, it's too risky IMHO if you are expecting are expecting to finish
off with a sail.
Kevin