I just purchased a new Electric Aircraft Tug from MiniMaxTugs.com. Here I'm demonstrating how easy it is to operate. My hangar has 2 large angle iron rails that the hangar doors ride on. This tug makes it a lot easier to get over humps. We also took a short flight to Commerce Municipal Airport in Commerce, TX.

https://www.youtube.com/watch?v=GqAOgVJAbn8