u/NathanKell

Two cylinder questions

(1) Has anyone made an S-IVB that is actually 6.6m in diameter, instead of the 7m of the official Saturn V set, which is also used in all the Saturn IB MOCs I've seen?

(2) A ways back I saw a picture demonstrating cylinder creation techniques and their size in studs and mm. I stupidly didn't save it at the time. Does anyone know what I'm talking about and can they post it? (It was a top down pic showing, for example, the brick-with-4-studs plus plate or jumper plus tiles for 8ft/2.4m, brick-with-4-studs plus two plates plus curved slopes for 10ft/3m, etc.)

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u/NathanKell — 10 days ago

Atlas-Agenas

Available now on Rebrickable: https://rebrickable.com/mocs/MOC-261102/nkell/atlas-agenas-at-1110-scale/#details

Inspired by saxus and 0rig0's Atlas prototypes and missiles collection, here's some various Atlas-Agenas which use their Atlas D base with tweaks to make the (S)LV-3(A) boosters. Uppers and payloads inspired by Betelguese90's Thor-Agenas.

Unlike that Thor-Agena collection however, this is not trying be exhaustive but merely representative.

As my goal was to create display models of the LVs, I did not model GATV in deployed form, just stacked.

Included two IRL photos, one of most of the models, and one of every early Keyhole LV (KH-1 through KH-9), using Thor-Agenas by Betelguese90 and Titans by Raptor Bricks. For KH-11 I have a TIVB built but not TIVA or DIVH. For KH-10 I do have the MOL mockup but no in-service IIIM. (I also don't have a 34D built since I decided to convert mine to a NASA Apollo IIIM.)

From the MOC page:

Atlas-Agena was the USAF and NASA's workhorse medium-lift launch vehicle throughout the 1960s, with Atlas-Centaur superceding it with NASA for more demanding missions and Titan III succeeding it with the USAF for heavier payloads.

Here are seven example payloads, covering LV-3A Agena A through SLV-3A Agena D.

* Atlas LV-3A Agena A MIDAS. MIDAS (MIssile Defense Alarm System) provided early warning for Soviet ballistic missile launches in the early 1960s.

* Atlas LV-3A Agena B Mariner 2 was the first successful interplanetary probe for NASA

* Atlas LV-3A Agena D KH-7 GAMBIT was the successor to the earlier Thor-based Keyhole program photreconnaisance satellites. Eventually GAMBIT grew heavy enough that the KH-8 GAMBIT III model required Titan IIIB (Agena D mounted to a Titan).

* Atlas LV-3A Agena D Mariner 4 was the first probe to return pictures of Mars

* Atlas SLV-3 Agena D Lunar Orbiter was the unsung counterpart to Atlas-Centaur Surveyor launches. Lunar Orbiter satellites provided essential mapping support for the Apollo program.

* Atlas SLV-3 Agena D Gemini-Agena Target Vehicle was perhaps the most famous Agena payload, a docking target and propulsion stage for Gemini missions

* Atlas SLV-3A Agena D Canyon were the first dedicated communications-intelligence satellites for the US

Booster design mostly based off the Atlas D from 0rig0 and saxus here: https://rebrickable.com/mocs/MOC-209320/saxus/early-atlas-prototypes-and-missiles-1110-scale/#details

Agena payloads take inspiration from the Thor Agena collection from Betelguese90 here: https://rebrickable.com/mocs/MOC-235587/Betelguese90/thor-agena-collection-saturn-v-scale/#details

Dimensions based on Ed Kyle's Atlas cards here: https://web.archive.org/web/20220406013821/http://www.spacelaunchreport.com/atlasflew.html

Reference images from Gunter's Space Page here: https://space.skyrocket.de/doc_lau/atlas_agena.htm

u/NathanKell — 13 days ago