A closer look
If you have ever watched a surprisingly small vehicle drag a 300,000-pound Boeing around an airport apron and wondered how physics allows it, thank the Clarktor 6. During WWII, the military realized dragging massive bombers around crowded airfields by hand was a terrible strategy. So, they took a humble agricultural tractor, shortened the wheelbase, slapped on dual rear wheels, and geared it down to produce absurd low-end torque. This tiny workhorse singlehandedly birthed modern airport logistics.
