home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.space
- Path: sparky!uunet!spool.mu.edu!wupost!zaphod.mps.ohio-state.edu!menudo.uh.edu!judy.uh.edu!st17a
- From: wingo%cspara.decnet@Fedex.Msfc.Nasa.Gov
- Subject: Re: 3 Booster Questions
- Message-ID: <10SEP199219281842@judy.uh.edu>
- News-Software: VAX/VMS VNEWS 1.41
- Sender: st17a@judy.uh.edu (University Space Society)
- Nntp-Posting-Host: judy.uh.edu
- Organization: University of Houston
- References: <9209020213.AA15023@cmr.ncsl.nist.gov> <BuC1Ks.1L1@zoo.toronto.edu> <1992Sep10.223854.5344@techbook.com>
- Date: Fri, 11 Sep 1992 00:28:00 GMT
- Lines: 23
-
- In response to Josh's statment about single engines for the booster phase of an
- HLV.
-
- Josh the NLS one booster which as an Atlas II class launcher only uses one
- STME booster (600,000 lbs thrust) for 20,000 lbs to orbit. Why? Lower labor
- costs. Titan IV costs much because of all of the labor involved in the build
- up as well as the reliability issues that others have mentioned. Funny that
- I did not know this three weeks ago (about NLS having single engine) when
- I spoke of the single engine "Baby Saturn" approach. I have to up the payload
- to orbit value to 60,000-65,000 for the F1A/STME combo to orbit. It still costs
- less than an Altas to fly. A Rockwell engineer I spoke with at the WSC thought
- the baby Saturn might be as low as 55 million per launch. This gets the cost
- per lb down to less than $1000 bucks a pound. This is mostly due to labor
- savings in the booster construction. Reliablity is a large question BUT 65 F1
- engines fired without failure during the Apollo program. This does give a
- baseline for an optimistic flight reliablilty percentage.
-
- Dennis, University of Alabama Huntsville
-
-
-
-
-
-