I'm often asked, what references I use for the LUT model, and where do I get them. As always, the answer is complicated. The well of wisdom is the LUT Group at Groups.io. There you find the complete collection of 75M-05120 and 75M-05121 blueprints and tons of additional drawings and pictures. You need to become member there however, before you can access these files.

There are however other sources like the Congress Library and various museums and of course the NASA, where you can find rare documents when you are lucky and dig deep enough.

However, before you even start, you need the AISC Handbook of Steel Construction to get the shape and dimensions of the used steel beams. And a good collection of historical pictures from the LUT from many angles and with high resolution - the higher, the better.

References for the structure

The collection of 75M-05120 and 75M-05121 blueprints are the bible for every LUT explorer. However, be warned if you plan your own LUT project. They only scratch at the surface of the LUT's complexity, and once you have finished these collections, you'll find out that you just have made the first steps into a long journey. 

Cover sheet of the 75M-05120 blueprints collection

Cover sheet of the 75M-05120 blueprints collection. Courtesy of NASA, scan by egilman111 at LUT Group

Here I have compiled a list of sources I used to construct the LUT model

  • 75M-05120 Design Criteria
  • 75M-05121 Mechanical and Electrical Installations
  • 75M-05128 Lightning Mast
  • 75M-05133 Camera Platforms and Supports
  • 75M-05134 Misc. Equipment Installations
  • 75M-05135 Tower Steel Additions
  • 75M-05249 Umbilical Arm Tower Interface 
  • 75M-05432 RP-1 System Mechanical
  • 75M-05753 LH2 System
  • 75M-05793 Hold Down Mast Assembly
  • 75M-05794 Base Hold Down Mast
  • 75M-05795 Base Weldment Hold Down Mast
  • 75M-05796 Base Casting Hold Down Mast
  • 75M-05868 LOX System
  • 75M-05872 ECS Components
  • 75M-05974 Tower Supply
  • 75M-06073 First Element Weldment Service Arms
  • 75M-06077 Second Element Weldment S-1C Intertank Service Arm 
  • 75M-06085 Second Element Weldment S-IC Forward Service Arm
  • 75M-06081 Second Element Weldment S-II Aft Service Arm
  • 75M-06088 Second Element Weldment S-II Intermediate Service Arm
  • 75M-06096 Second Element Weldment S-IVb Aft Service Arm
  • 75M-06100 Second Element Weldment S-IVb Forward Service Arm
  • 75M-06210 Side Panel Weldment Extension Platform
  • 75M-09792 Propellant Lines Installations S-1C Intertank Service Arm
  • 75M-10490 Truss Assembly Access Arm
  • 75M-10492 Second Element Weldment Access Arm
  • 75M-10506 Equipment Installation Access Arm
  • 75M-10508 Environmental & Fluid Service Installation Access Arm
  • 75M-11770 Tail Service Mast Assembly
  • 75M-11771 Tail Service Mast Base Assembly
  • 75M-11774 Tail Service Mast Assembly
  • 75M-16167 Ingress and Egress Platform Access Arm
  • 76K-03414 White Room
  • 76K-30822 DRRS Arm Assembly
  • 79K-00403 LUT Area Allocation
  • 79K-30000 Demolition & Stripping of ML-1
  • D-26835 Hammerhead Crane General Arrangement
  • D-26887 Hammerhead Crane Bracket Details
  • D-27072 - D27080 Hammerhead Crane Boom Details
  • D-27090 Hammerhead Crane Lighting Layout
  • D-27155 - D-27162 Hammerhead Crane Machinery House
  • D-27215 Hammerhead Crane Boom Assy Drawing
  • Mobile Launcher ESE Details
  • S-IC Technical Manual Maintenance Information
  • Saturn V Service Arms Preliminary Engineering Report
  • Command Module Service Arm Environment Chamber
  • Apollo CSM Block II Operations Handbook
  • Apollo-Saturn Systems Familiarization
  • Apollo Saturn V Facility Description Vol. 2-4
  • Electrical Reference Handbook Launch Equipment LC-39 Vol. 1
  • Launch Complex 39 Umbilical Arms. Concept Study Report
  • Saturn V Mechanical Ground Support Equipment
  • Saturn V Launch Vehicle Ground Support Equipment Fact Booklet
  • AISC - Handbook of Steel Construction

References for the equipment and various additions

Aside from a few schematic drawings and rare photographs there is nearly no reliable information available for most of the LUT's equipment. Hartmuth Gutsche and me underwent the painstaking task of analyzing all (well nearly) pictures from the LUTs we came across (and I'm speaking of thousands of them) to get as much information as possible. I did tons of renderings and compared them to the real pictures to approximate the model to the real thing as close as possible, together with the limitation what can be done in a paper model.

Example of the deep analysis of historical LUT pictures

Also, we came across of many differences between the three LUTs and had to confirm that an identified structure really was on LUT 1. We also found equipment that most probably was only temporary like waist containers, tents and so on. Same equipment sometimes looked different between the LUTs, often because parts of the shell were removed for maintenance work - I'm just mentioning all this to give you an idea of how much work went into the task of getting the equipment right.

The basic reference I used are the 79K-00403 drawings available at the LUT group. They reference the location, the square-size of its footprint, sometimes the elevation and also the name without exact measures, and assign an ordering number to each equipment. This number is also used in the model e.g. like equ.100.TestStationValvePanel.

There is also the 79K-30000 collection available at the LUT group, it however reflects the Milkstool-conversion of LUT 1 with different equipment particularly in the lower levels.

What can you expect from this LUT model?

Some of the equipment is highly speculative, especially when it was located in the inner area of the level. Some of the equipment is very accurate, because I found a photograph, a drawing or it was depicted good enough in the demolition or boneyard pictures available at the LUT Group or elsewhere on the web. The vast majority is a visual approximation of what can be seen on the historical LUT pictures, and their most visible sides and proportions should be correct. Don't forget that 40% of the equipment were storage racks shaping a simple cube with braces around and various doors and openings. Their color mostly was either red or white, in rare cases light blue and in one case yellow. I'm sure the colors had a meaning, but I could not figure it out.