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Markus Baur
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 Posted: Tue Nov 18, 2008 2:40 am Post subject: saturn V interstage mass |
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hi ..
i have been trying to find a definte source for the mass of the
interstages between the 1st and 2nd and the 2nd and 3rd stage of the
saturn V
i gound some sources for the mass for 2nd/3rd stage integerstage, but
they vary widely .. i cannot find anything about the 1st/2nd stage
interstage
can anyone help ..
servus
markus |
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Joseph Nebus
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| Posted: Tue Nov 18, 2008 3:30 am Post subject: Re: saturn V interstage mass |
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Markus Baur <baur@chello.at> writes:
[quote]i have been trying to find a definte source for the mass of the
interstages between the 1st and 2nd and the 2nd and 3rd stage of the
saturn V
i gound some sources for the mass for 2nd/3rd stage integerstage, but
they vary widely .. i cannot find anything about the 1st/2nd stage
interstage
can anyone help ..
[/quote]
_Apollo By The Numbers_, NASA SP-4029, is probably reasonably
definitive for this sort of thing. According to its table of Ground
Ignition Weights, which for some reason lists numbers in some oddball
undoubtedly NASA-customized weird moon-man units, the S-IC/S-II
interstage comes in at pretty near 11 to 12 thousand pounds:
http://history.nasa.gov/SP-4029/Apollo_18-19_Ground_Ignition_Weights.htm
Apollo 8 12,436
Apollo 9 11,591
Apollo 10 11,585
Apollo 11 11,477
Apollo 12 11,509
Apollo 13 11,454
Apollo 14 11,400
Apollo 15 9,083
Apollo 16 10,091
Apollo 17 9,975
If I remember a Henry Spencer explanation correctly, Apollo 15
had a lighter-than-average interstage because it had only four rather
than eight ullage engines on its rim, so that>s another thing for the
careful modeller to watch. I don>t know anything special about the
weights of the Apollo 16 and 17 interstages, other than that they were
scraping weight off of everything to make way for the lunar rover.
The usefulness of _Apollo By The Numbers_ as a statistical
reference, by the way, is matched only by the nuisance of its web site
design. From the front page you have to click through about four
hundred pages of introduction and dedication and such before you reach
the table of contents, as if it were designed by someone who>d only
heard a rough description of a web page in 1993 and had never seen or
used one.
--
Joseph Nebus
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OM
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| Posted: Tue Nov 18, 2008 7:47 am Post subject: Re: saturn V interstage mass |
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On 17 Nov 2008 16:30:21 -0500, nebusj-@-rpi-.edu (Joseph Nebus) wrote:
[quote]If I remember a Henry Spencer explanation correctly, Apollo 15
had a lighter-than-average interstage because it had only four rather
than eight ullage engines on its rim,
[/quote]
....Correct. And they wound up putting them back on for the latter two
flights.
Damn. I miss Henry around here. Every time I see no posts from him, I
curse every one of the trolls who chased him off...
OM
--
]=====================================[
] OMBlog - http://www.io.com/~o_m/omworld [
] Let>s face it: Sometimes you *need* [
] an obnoxious opinion in your day! [
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Damon Hill
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| Posted: Tue Nov 18, 2008 8:20 am Post subject: Re: saturn V interstage mass |
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OM <om@all_trolls_must_DIE.com> wrote in
news:kk74i4tvk0pqubnh20oj75jvhcb2msom22@4ax.com:
[quote]On 17 Nov 2008 16:30:21 -0500, nebusj-@-rpi-.edu (Joseph Nebus) wrote:
If I remember a Henry Spencer explanation correctly, Apollo 15
had a lighter-than-average interstage because it had only four rather
than eight ullage engines on its rim,
...Correct. And they wound up putting them back on for the latter two
flights.
Damn. I miss Henry around here. Every time I see no posts from him, I
curse every one of the trolls who chased him off...
[/quote]
That>s a lot of cursing. :/
--Damon |
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Jeff Findley
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| Posted: Tue Nov 18, 2008 8:17 pm Post subject: Re: saturn V interstage mass |
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"OM" <om@all_trolls_must_DIE.com> wrote in message
news:kk74i4tvk0pqubnh20oj75jvhcb2msom22@4ax.com...
[quote]Damn. I miss Henry around here. Every time I see no posts from him, I
curse every one of the trolls who chased him off...
[/quote]
I don>t miss him, since he>s on a rocket related mailing list that I
subscribe to. ;-)
Jeff
--
beb - To paraphrase Stephen Colbert, reality has an anti-Ares I bias. |
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