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Article #7210Re: Using off-the-shelf-components
From: wingo%cspara
Date: Wed, 27 Jan 1993 23:13
Date: Wed, 27 Jan 1993 23:13
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3835 bytes
In article <1993Jan27.190735.17499@cc.ic.ac.uk>, atae@crab.ph.ic (Ata Etemadi) writes... >G'Day > > Are there any companies out there whose off-the-shelf products are >space-qualified ? I ask this since a colleague at IKI told me that >they had flown many standard PC hard discs as onboard storage devices >and had great success. I just wondered what other components might be >out there which are standard and space-qualified. I don't imagine >for one minute that these components will be chosen for major space >missions since they are just not expensive enough. Maybe the UOSAT >folks will be willing to give them go... > > regards > You know I feel like I am the Shell Answer man for space of late. You can fly any commercial hardware you like on the shuttle as long as it meets the flamablity, outgassing, offgassing and EMI requirements. Let me give you an example. I recently, along with others working at the University of Alabama in Huntsville, built tested and delivered to the SpaceHab module (STS 57) a major payload for the measurement of the microgravity levels inside of the SpaceHab module. This experiment has a controller that is a personal computer that sit by the millions on desks all across the world, with a data acquisiton card manufactured commercially by the US leader in that field. Also flown for data storage are two 2.1 gigabyte ST42100 5 1/4" Seagate hard disks. Attached to this are some rather expensive accelerometers that are the best in the world. The software is a standard version of the commercial data acquistion software made by the manufacturer of the data acquistion card. These components were integrated into a structure that fits in a Middeck locker and all of the above components passed the shake tests, outgassing and offgassing tests, as well as near compliance on EMI which required a waiver, which was granted. This hardware and software, with the exception of the accelerometers (which have 1 microgee accuracy) were bought from local computer stores or national distributors. The problem is that non of you so called big shots out there with the big mouths and no follow through are willing to do the work necessary to make this happen on a day to day basis. I guarantee that if a few of you would bid on NASA announcment of opportunities when they come out, and do the hard work necessary to use the commercial equipment, you could lower the cost of the program by at least 2/3. How can I say that? IT is because this is exactly what we did here. Talk is cheap and there is a lot of cheap talk on this group. Get offa your rears and do something to help lower the costs of moving into space. I can't do it all. (but I damn sure am trying) Yours was probably a legitimate question and I try to answer nicely but you must realize that NASA is not the enemy. On the contrary, NASA will help you to help NASA because if for no other reason it looks good to be able to show costs savings on programs and reverse technology transfer is the primary way in my estimation that this is going to happen. Dennis, University of Alabama in Huntsville PS: Paul S you are a newby and you better get used to the McElwaine's of this net.
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Path: arc1-ca.pugleaf.net!sparky!uunet!think.com!rpi!zaphod.mps.ohio-state.edu!menudo.uh.edu!judy.uh.edu!st17a From: wingo%cspara@Fedex.Msfc.Nasa.Gov Newsgroups: sci.space Subject: Re: Using off-the-shelf-components Date: 27 Jan 1993 17:13 CST Organization: University of Houston Lines: 62 Sender: st17a@judy.uh.edu (University Space Society) Distribution: world Message-ID: <27JAN199317130244@judy.uh.edu> References: <1993Jan27.190735.17499@cc.ic.ac.uk> NNTP-Posting-Host: judy.uh.edu Keywords: space science, electronics, computers News-Software: VAX/VMS VNEWS 1.41