Me standing next to one of the main bogies of a Travis AFB C-5 at Oshkosh 2010.

This particular C-5 is one of two C or SCM (Space Cargo Modified) models. The SCMs are A model Galaxies that have had undergone a number of modifications in order to transport large items such as satellites.

Here’s a video of the same Galaxy leaving Oshkosh that year. Note how the two rear bogies are fully extended, while the two front ones are still in their lowered or kneel position.