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NASA artist illustrations and cutaways of Saturn vehicles
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OM om@our_blessed_lady_mary_of_the_holy_NASA_researc h_facility.org wrote: Cutaway of Saturn I S-IV Stage http://mix.msfc.nasa.gov/ABSTRACTS/MSFC-9801758.html ..."Blowout Panels (8)"?? Were these part of the actual design in the end? Hmm, interesting question. That suggests that they planned "fire in the hole" staging for the Saturn I -- ignition before separation. But technical details on the Saturn I are a bit hard to find, and I don't know offhand just how its staging was done. http://mix.msfc.nasa.gov/ABSTRACTS/MSFC-0100805.html ...Interesting how they illustrate the interstage skirt as part of the S-IVB and not the IB first stage. That was standard for the Saturns -- the interstages were built as part of the stage above, not the stage below, although they mostly remained with the stage below after separation. -- MOST launched 1015 EDT 30 June, separated 1046, | Henry Spencer first ground-station pass 1651, all nominal! | |
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NASA artist illustrations and cutaways of Saturn vehicles
(Henry Spencer) wrote in message ...
In article , OM om@our_blessed_lady_mary_of_the_holy_NASA_researc h_facility.org wrote: Cutaway of Saturn I S-IV Stage http://mix.msfc.nasa.gov/ABSTRACTS/MSFC-9801758.html ..."Blowout Panels (8)"?? Were these part of the actual design in the end? Hmm, interesting question. That suggests that they planned "fire in the hole" staging for the Saturn I -- ignition before separation. But technical details on the Saturn I are a bit hard to find, and I don't know offhand just how its staging was done. According "MARSHALL SPACE FLIGHT CENTER MPR-SAT-FE-64-18, "RESULTS OF THE SIXTH SATURN I LAUNCH VEHICLE TEST FLIGHT (SA-6)", the Saturn I first/second stage separation involved ullage rockets igniting on the S-IV stage, followed by stage separation about 0.18 second later. At stage separation, retro-rockets on the S-I stage fired upward. The S-IV engines ignited about 1.63 seconds after stage separation. The S-IV ullage rockets were jettisoned about 10 seconds after staging. And yes, the blowout panels (there were 8 of them) were used in the Saturn I, Block II vehicles. Keep searching for "S-IV" stage on NIX and you should find some good photos of this hardware. The interstage blow ports came into play a bit more than 8 seconds before stage separation, when the S-IV LOX Prestart event occured. At this time, the ports were blown open, presumably to vent LOX gases. The S-IV LH2 prestart (chilldown) occurred about 42 seconds before staging. (I recall reading in another reference that Douglas had struggled with chilldown hydrogen gas venting when developing the S-IV stage. I think that hydrogen vent pipe "stacks" were added for this purpose.) - Ed Kyle |
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NASA artist illustrations and cutaways of Saturn vehicles
On Sat, 23 Aug 2003 21:51:08 GMT, (Henry Spencer)
wrote: In article , OM om@our_blessed_lady_mary_of_the_holy_NASA_researc h_facility.org wrote: Cutaway of Saturn I S-IV Stage http://mix.msfc.nasa.gov/ABSTRACTS/MSFC-9801758.html ..."Blowout Panels (8)"?? Were these part of the actual design in the end? Hmm, interesting question. That suggests that they planned "fire in the hole" staging for the Saturn I -- ignition before separation. But technical details on the Saturn I are a bit hard to find, and I don't know offhand just how its staging was done. ....From the footage I've seen of Saturn 1 staging, it appears to have been the same as with the 1B. However, that's from the outside, and I've yet to see camera footage of the S-IV igniting and shooting away from the inside of the interstage. IIRC, *you* told me years ago it existed :-) ....Still, the "fire in the hole" method may have been intended at the start. What resources are out there that deal with "Cluster's Last Stand" that go into detail? http://mix.msfc.nasa.gov/ABSTRACTS/MSFC-0100805.html ...Interesting how they illustrate the interstage skirt as part of the S-IVB and not the IB first stage. That was standard for the Saturns -- the interstages were built as part of the stage above, not the stage below, although they mostly remained with the stage below after separation. ....Or separated shortly after from the stage above, as we tend to get reminded from that footage ad nauseum :-) OM -- "No ******* ever won a war by dying for | http://www.io.com/~o_m his country. He won it by making the other | Sergeant-At-Arms poor dumb ******* die for his country." | Human O-Ring Society - General George S. Patton, Jr |
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