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Saturn V Parts Pack (v1.1) (NEW: Fixed PNG's)


KingTramp

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  lefayad1991 said:

wait...i just realized something....is the N1 going to explode on every launch like the real one?

If you do it right! :P

If it's not exploding, slap some SRBs on there at weird angles. That should solve the problem.

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On Earth, the phrase 'What goes up must come down' is a statement that without anything like a rocket or such, it's tough to escape gravity. On Kearth, the phrase, used to describe the rockets, goes as: 'What goes up must blow up in a twisted metal inferno that will without a doubt impress Jebediah.'

Nice work with the Saturn V. Love it!

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The cone shaped adapter/decoupler is in Nova's SIDR parts package, you need the 1m to 1.75m Decoupler.

ETA- you'll also want the small or medium LFR from Sunday Punch's parts pack.

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  Lennyoliy said:

On Earth, the phrase 'What goes up must come down' is a statement that without anything like a rocket or such, it's tough to escape gravity. On Kearth, the phrase, used to describe the rockets, goes as: 'What goes up must blow up in a twisted metal inferno that will without a doubt impress Jebediah.'

Nice work with the Saturn V. Love it!

'I think what goes up must blow up' is enough 8)

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Hey, Kingtramp, I was playing around with the Saturn (and thinking of eventually building every single Saturn V derivative that NASA studied in the mid-to-late 60s and posting them as a pack in the Spacecraft Exchange), and came up with a few items of discussion.

First off, I think you got the thrust figures a bit off for the first stage of the S-V. Each F-1 engine produced the same amount of thrust as the five J-2s on the second stage combined; since you have the second stage listed as making 400 thrust, shouldn't the first stage's thrust be double its current value of 1000?

Secondly, a number of the proposals investigated used stretched stages to provide more fuel, partly for more powerful engines to lift a larger payload, and partly for extended burn time to get a larger payload to orbit. Would you be interested in perhaps building some of these lengthened stages? (They'd be a relatively simple extension of the existing ones, or could be handled by building a second, smaller tank part that would be stacked atop the existing part.)

A third, related question would be related to the 'S-ID' stage that MSFC and Boeing proposed for a 'reduced-cost' version of the Saturn V for later designs, essentially being a stage-and-a-half version of the S-IC with the center engine as a sustainer, and the outer four engines being used as jettisonable, recoverable boosters. At least five different proposals were made that would have used the S-ID, so it might be an interesting thing to build, too. Any interest there?

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Yep I'm aware that the values are a bit off. I think 2000 will be too powerful, but maybe something like 1750/350/70 will work, with adjusted fuel consumption of course. This would allow the first stage to get a little higher while decreasing the power of the other 2 stages.

Do you have any designs of these lengthened stages? I'm a little busy at the moment but I might be able to give it a go next week if its an easy adjustment.

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Do you have a suggested weight threshold for mission payloads? I kept tipping really hard whenever I'd put anything more than a command pod on top.

Yes SAS is on and I'm making tiny course corrections.

edit: oh yeah and I can die happy now. God damn, this is massive.

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I don't have *detailed* designs, but information on them is available at Encyclopedia Astronautica. Hang on, I'll get the details...

(EA's main Saturn booster family page: http://astronautix.com/fam/saturn.htm)

OK, listed in the order I found them courtesy of that:

MS-IC-1: S-IC with 240-inch stretch, F-1A engines with 20% more thrust and 6 second Isp improvement.http://astronautix.com/stages/satmsic1.htm

MS-II-1: S-II with 41-inch stretch of LH2 tank. http://astronautix.com/stages/satmsii1.htm

MS-IVB-2: S-IVB with a more-powerful HG-3 engine replacing J-2. http://astronautix.com/stages/satsivb2.htm

MS-II-2: S-II with 187-inch stretch and HG-3 engines. http://astronautix.com/stages/satsivb2.htm

MS-IC-4(S)B: S-IC with 336-inch stretch, hardpoints for four sidemount SRBs. http://astronautix.com/stages/satic4sb.htm

MS-IVB-1A: S-IVB with 198-inch stretch. http://astronautix.com/stages/sativb1a.htm

MS-IC-1A: S-IC with 240-inch stretch, six F-1 engines. http://astronautix.com/stages/satsic1a.htm

MS-II-1A: S-II with 187-inch stretch, seven J-2 engines. http://astronautix.com/stages/satsii1a.htm

MS-LRB-23(L): 260-inch diameter (same as S-IVB) sidemount liquid-fuel booster with two F-1 or F-1A engines. http://astronautix.com/stages/satrb23l.htm

MS-II-4(S)B: S-II with hardpoints for mounting four MS-LRB-23(L)s. (Yeah, there was one BEAST of a design with that.) http://astronautix.com/stages/satii4sb.htm

MS-IC-23(L): S-IC with 240-inch stretch, five F-1 engines. http://astronautix.com/stages/satic23l.htm

MS-IC-25(S): S-IC with 498-inch stretch, five F-1A engines, hardpoints for four sidemount SRBs. http://astronautix.com/stages/satic25s.htm

S-ID: Very interesting idea, 'stage-and-a-half' S-IC equivalent. Same overall dimensions, but outboard F-1s jettisoned after 124 seconds. My best guess is that it would have looked like the S-IC, but with the fairings for the outboard engines being jettisonable 'pods' around a central fairing to the center engine. http://astronautix.com/stages/satoster.htm and http://astronautix.com/stages/satainer.htm

S-N V-25(S)U: NERVA replacement for the S-IVB for use on an early-80s manned Mars mission. http://astronautix.com/stages/satv25su.htm

Several of the 'boosters used on' pages include notional sketches of what the configuration would have looked like, but for the most part, the only visible difference would be that they had longer center sections in their fuel tankage, plus possible modified paint schemes (such as the S-N most likely having radiation warning logos, and the NASA 'worm' logotype on it, given when it was expected to fly), and changes in engines and engine numbers. Most of the modified S-ICs would also have dispensed with the fins, as they found that the stabilizing effect wasn't worth the weight. The lengthened stages themselves would be pretty easy, I expect; the engines less so for visual models, though I could do 'interim' versions of the engines by just modding the .cfg files to increase thrust and fuel burn rate appropriately.

(I kinda love the Saturn family, can you tell?)

  Latency said:

edit: oh yeah and I can die happy now. God damn, this is massive.

Mine's bigger! :D (My 'VK Nova Mark Two' is derived from the NASA 'Nova' studies of the early-to-mid 60s, for when they weren't sure if the Saturn V would be big enough for lunar missions. Available at http://kerbalspaceprogram.com/forum/index.php?topic=1910.0)

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  KingTramp said:

Yep I'm aware that the values are a bit off. I think 2000 will be too powerful, but maybe something like 1750/350/70 will work, with adjusted fuel consumption of course. This would allow the first stage to get a little higher while decreasing the power of the other 2 stages.

Do you have any designs of these lengthened stages? I'm a little busy at the moment but I might be able to give it a go next week if its an easy adjustment.

I've been tinkering with the numbers a little:

First, you need to add Breakingforce=100000 to every stage 1-3 cfg

Fuel numbers are Net Mass *250

Stage 1-2 decoupler mass 1.5

stage 2-3 decoupler mass 1.0

f-1 cluster- mass 30, thrust 6000, burn 300

stage1 tank- mass 90/dry 9; fuel 18000

j-2 cluster- mass 10, thrust 1200, burn 60

stage2 tank-mass 20, dry 2, fuel 4500

single j-2-mass 2, thrust 300, burn 12

stage 3 tank-mass 5, dry 0.5, fuel 1125.

FWIW, my final command module stage weighs 4.95

Something else to consider is 'scaling' the numbers to keep them from getting so large. Divide the mass and thrust for the 3m parts by 3, and by 2 for the 2m parts. Fuel and burn can also be scaled.

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I felt that the Saturn V didn't have enough 'oomph' to properly make it into orbit, so I increased Stage 1's engine to 1100 thrust, increased Stage 2's engine thrust to 500, and reduced the fuel consumption of the last stage's engine down to 1.2. In this way I didn't have to use the third stage (which is really only to get to the moon) to properly get into orbit... in fact I had to ditch the second stage with some fuel remaining. From around 50km altitude @ orbital velocity (2330 or something), using the lunar rocket I was able to speed up to just shy of 4km/s - I have no idea how effective this speed would be for a lunar orbit insertion... according to the kerbal calculator to do a transfer orbit out to the distance of earth's moon you only need about 3.3km/s...

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Not entirely correct about the 3rd stage Frost. It burned for 142 seconds establishing the 100mi holding orbit. It was reignited for 345 seconds for the moon transfer.

That said, my numbers will orbit on stage 2 alone also.

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  Andras said:

Not entirely correct about the 3rd stage Frost. It burned for 142 seconds establishing the 100mi holding orbit. It was reignited for 345 seconds for the moon transfer.

That said, my numbers will orbit on stage 2 alone also.

Hmm I have yet to achieve that regardless of how careful I was. I did a circular orbit insertion at as low as possible with my vertical velocity running out just at around 35-36k specifically to preserve as much fuel as possible for lateral thrust, and still didn't have enough juice from the second stage to get much more than 1300km/s laterally.

I have Moach's escape system on top, the modified RCS, and some damn rocket nozzle under it, that's it. Not a lot of extra weight there.

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I have a escape tower, parachute, capsule, 2 vernier SAS, CSM fuel tank and small LFR at the top.

I also have about 12 ullage motors and 4 strakes distributed around the beast.

Using the cfg numbers I posted last page, I burn at 2/3 thrust until burn out (~21km), after separating from stage 1 begin an immediate pitch over to 0* while coasting (you can start a little early actually). You should get to 0* about 34km, and only ignite stage 2 when you hit 300m/s velocity. Burning at 100% until you hit orbital speed, you should be within seconds of running out of fuel. I hit 2340m/s at 45km with 10m/s vertical velocity left. Go ahead and ditch stage 2 since it's so slow to rotate with it attached and use stage 3 to fine tune the orbit.

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