The LUT has 9 service arms (or, more commonly swing arms), of which five (so called in-flight service arms) stayed connected to the Saturn V until liftoff and swung inwards during the launch.

So the Saturn V was still refueled after ignition, and only after the first movement the connections were cut to give way for the liftoff. How the NASA technicians managed to refuel LOX and H2 into the blazing inferno without blowing up the terrain still remains a mystery to me.

Service arm #1 was a so called pre-flight arm, and was retracted already before launch. It provided the first stage with liquid oxygen (LOX) from the valve complex at Level 30.

Service Arm #1

Service Arm #1

The lower 8 swing arms are modular and consist of two access elements (painted red) and the individual extension platform (white). The respective umbilical mechanism is attached to it. The swing arms in the model are designed to be movable to some extent; the real problem is not only the arms themselves move, but also the pipes and the extension platform.

Service Arm #1

Service Arm #1

In short, the thing gets a bit scary, and despite the simplifications (the struts are actually tubes, but who wants to roll 0.5mm cross measuring tubes) I will build a prototype of service arm #1 in advance to test its build-ability *ggg*.

Back on the crawler

Back on the crawler

Once again we put the LUT virtually on the crawler. As you can already see now, the crawler is a mild smile against the LUT. I added the first stage of the Saturn V quick&dirty as well, because a swing arm hanging into the void looks pretty poor. I will also design parts of the Saturn so that the connectors fit the LUT.

There are no drawings of the Saturn V on the web, because it falls under the American export ban. Obviously, someone in Washington is in fear someone could rebuild a Saturn V.