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Spacebucket http://67.205.157.234/forums/viewtopic.php?f=19&t=149 |
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Author: | CobaltWolf [ February 19th, 2019, 2:06 pm ] |
Post subject: | Re: Spacebucket |
Those are amazing! Hard to believe how many variants of the Delta (and Atlas) there were! Surprising to think that the Titan sheet may well have the fewest number of variants on it. |
Author: | erik_t [ February 19th, 2019, 2:18 pm ] |
Post subject: | Re: Spacebucket |
Oh man, I love the crazy Delta IV derivatives. For those unaware, the 7-CBC superheavy could rival Saturn V in LEO throw weight. I'm not familiar with this specific generation of next-gen Delta, but I wouldn't be surprised if it could surpass S-V. (PDF from ULA on Delta IV derivatives) |
Author: | BB1987 [ February 19th, 2019, 2:39 pm ] | ||
Post subject: | Re: Spacebucket | ||
Those are amazing! Hard to believe how many variants of the Delta (and Atlas) there were! Surprising to think that the Titan sheet may well have the fewest number of variants on it.
I'll have too see once I will begin fix the existing sheet and add the few variants still missing. But yes, it is highly possible that the Titan sheet could be the smallest of the three.
Oh man, I love the crazy Delta IV derivatives. For those unaware, the 7-CBC superheavy could rival Saturn V in LEO throw weight. I'm not familiar with this specific generation of next-gen Delta, but I wouldn't be surprised if it could surpass S-V.
ULA's payload guide for the Delta IV has a small section at the end with some possible evolutions (since it dates 2013, and ULA is now working on the Vulcan to replace both Atlas and Delta, I'd say they pretty much will never happen). They claim the 8-m CBC next-gen could lift 145T to LEO.(PDF from ULA on Delta IV derivatives) https://i.imgur.com/Wgygoi6.png |
Author: | erik_t [ February 19th, 2019, 2:42 pm ] |
Post subject: | Re: Spacebucket |
Oh, excellent. The PDF is from 2004, so some change over the intervening decade is not surprising. |
Author: | TimothyC [ February 19th, 2019, 2:52 pm ] |
Post subject: | Re: Spacebucket |
BB1987, your work continues to be fantastic. For reference for everyone:
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Author: | BB1987 [ March 4th, 2019, 11:02 pm ] |
Post subject: | Re: Spacebucket |
Japanese H-I/H-II/H3 rocket family. |
Author: | Hood [ March 5th, 2019, 8:59 am ] |
Post subject: | Re: Spacebucket |
Lovely work, nice to see some lesser known rockets from other countries. |
Author: | erik_t [ March 5th, 2019, 1:20 pm ] |
Post subject: | Re: Spacebucket |
I've always found the massive external booster bracing on the H-IIAs to be interesting. For whatever reason, no other organization has ever felt the need to add such crossmembers. Presumably (as in, I'm presuming), the central tank at that axial station was not designed to take heavy side loads, and the booster cluster needs to mechanically interface with the center stage almost exclusively at the base (note that the previous longer boosters interfaced at an inter-tank section). Beautiful drawings, as we've come to expect. |
Author: | BB1987 [ March 5th, 2019, 1:26 pm ] |
Post subject: | Re: Spacebucket |
I've always found the massive external booster bracing on the H-IIAs to be interesting. For whatever reason, no other organization has ever felt the need to add such crossmembers. Presumably (as in, I'm presuming), the central tank at that axial station was not designed to take heavy side loads, and the booster cluster needs to mechanically interface with the center stage almost exclusively at the base (note that the previous longer boosters interfaced at an inter-tank section).
The diagonal bracings also pushed the boosters away during spearation:Beautiful drawings, as we've come to expect. Seems the H3 will give away with that kind of strut setup for a much more simple and classic one though. |
Author: | Garlicdesign [ March 5th, 2019, 7:33 pm ] |
Post subject: | Re: Spacebucket |
Hi BB! Fascinating subject, all the more as it's one I'm totally ignorant of. Extremely well done and researched. Greetings GD |
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