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- Newsgroups: sci.space
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!cs.utexas.edu!torn!utzoo!henry
- From: henry@zoo.toronto.edu (Henry Spencer)
- Subject: Re: Delta
- Message-ID: <Bs4u8F.Dvq@zoo.toronto.edu>
- Date: Wed, 29 Jul 1992 04:09:49 GMT
- References: <9207261355.AA18061@cmr.ncsl.nist.gov> <150geiINNgif@agate.berkeley.edu> <27JUL199219250158@judy.uh.edu> <1992Jul28.161541.16680@nntpd.lkg.dec.com> <28JUL199220442331@judy.uh.edu>
- Organization: U of Toronto Zoology
- Lines: 23
-
- In article <28JUL199220442331@judy.uh.edu> st17a@judy.uh.edu (University Space Society) writes:
- >....engines and tanks sure look independant to me. There are 8 tanks,
- >eight engines, eight sets of propulsion plumbing...
-
- Sorry, Dennis, there were *nine* tanks: a Jupiter-diameter tank in the
- middle and eight Redstone-diameter tanks around it. All were lengthened
- from the originals. None had horizontal partitions -- the central tank
- and four of the outside ones carried LOX, the remaining four outside
- tanks kerosene. The two sets of four outside tanks were slightly
- different, because the LOX tanks carried all the structural loads
- while the fuel tanks had slip joints at their upper ends to accommodate
- the thermal contraction of the LOX tanks. Each fuel tank nominally
- fed two engines, and the central LOX tank fed the outboard LOX tanks,
- which in turn each fed two engines... but there *was* an interconnection
- network to maintain vehicle balance in case one set of engines was a
- bit thirstier than another. The eight engines were not precisely
- identical either, because only the outer four were gimballed, and
- details like disposal of turbopump gases differed.
-
- Ref: Stages to Saturn, NASA SP-4206.
- --
- There is nothing wrong with making | Henry Spencer @ U of Toronto Zoology
- mistakes, but... make *new* ones. -D.Sim| henry@zoo.toronto.edu utzoo!henry
-