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Re: Laser Aperture Size
- To: David@interworld.com (David Levine)
- Subject: Re: Laser Aperture Size
- From: kgstar@most.fw.hac.com (Kelly Starks x7066 MS 10-39)
- Date: Fri, 15 Mar 1996 14:02:57 -0500
- Cc: Kelly Starks x7066 MS 10-39 <kgstar@most.fw.hac.com>, Kevin C Houston <hous0042@maroon.tc.umn.edu>, Brian Mansur <bmansur@oc.edu>, "L. Parker" <lparker@destin.gulfnet.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>
At 1:46 PM 3/15/96, David Levine wrote:
>Kelly Starks x7066 MS 10-39 wrote:
>
>> At 11:35 AM 3/15/96, Kevin C Houston wrote:
>
>> >it would generate ~1 G of Decell as long as you stayed above ~.93 of C.
>> >then it drops off rapidly until it accounts for less than .1Garound .88
>> >of C. Please Note that this is for a solid sail, and not for a mesh. a
>
>> Why didn't you follow up on, or talk more about this? Whats the
>>dragdrop off?
>
>It sounds like the decelleration is miniscule
>at fairly high speeds (0.5c) where we'd still
>need a bunch more decelleration.
Humm I missed the .1 G at around .88 part. Still if you could rig out a
LARGE, light, charged, microwave transparent drag chute or mag scoop. It
could get a good fraction of a G of drag. Given time dialation would cut
the crews apparent trip time way down. They could afford to spend a couple
years deceling down to a low C fraction that we could brake from by rocket.
It beats all this nonsence about reflector sails!
>--
>David Levine
>Application Engineer
>InterWorld Technology Ventures, Inc.
>http://www.interworld.com/staff/david/
>david@interworld.com
Much more professional signature. ;)
Kelly
----------------------------------------------------------------------
Kelly Starks Internet: kgstar@most.fw.hac.com
Sr. Systems Engineer
Magnavox Electronic Systems Company
(Magnavox URL: http://www.fw.hac.com/external.html)
----------------------------------------------------------------------
- Follow-Ups:
- Drag chutes.
- From: Kevin C Houston <hous0042@maroon.tc.umn.edu>