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- Newsgroups: sci.space.shuttle
- Path: sparky!uunet!spool.mu.edu!torn!utzoo!henry
- From: henry@zoo.toronto.edu (Henry Spencer)
- Subject: Re: What "supports" the stack on the pad
- Message-ID: <C0G7t3.IBn@zoo.toronto.edu>
- Date: Wed, 6 Jan 1993 20:05:26 GMT
- References: <1if7qfINNdne@savoy.cc.williams.edu>
- Organization: U of Toronto Zoology
- Lines: 24
-
- In article <1if7qfINNdne@savoy.cc.williams.edu> anderson@Williams.EDU () writes:
- >... How is the orbiter stack
- >supported on the moblie launch platform? Is it "standing" on SRB's?
-
- The orbiter hangs on the external tank, which hangs on the SRBs. The SRBs
- are bolted to the pad at their aft skirts (just above the nozzles proper).
- Explosive nuts fire, simultaneously with SRB ignition, to release them.
-
- >For that matter
- >how are any of these launch vehicles supported prior to launch? I can't
- >see the engine nozzles supporting all that weight.
-
- They don't. Pad support fixtures are part of the vehicle, usually in the
- vicinity of the engines because that's where the heavy structure is already.
-
- >Also, as a sidebar, what is
- >the function of the two rectangular shaped items in front of the wings of the
- >orbiter while on the pad? I seem to recall some reference to and umbilical
- >housing of some sort.
-
- That's what they are; they carry fuel plumbing and suchlike to the orbiter.
- --
- "God willing... we shall return." | Henry Spencer @ U of Toronto Zoology
- -Gene Cernan, the Moon, Dec 1972 | henry@zoo.toronto.edu utzoo!henry
-