At Heli-Expo in Anaheim earlier this year, Chino, California-based AC Air Technology didn’t have to travel far to show off its new patented, self-loading T1H2 helicopter tug. The rechargeable unit, with a continuous run time of 30 minutes, retails for around $17,000. Two six-inch-wide treads, one on each side of the T1H2’s 84-inch-wide frame, drive the unit in any direction. The T1H2 can load, carry, and unload any helicopter with skids, weighing up to 6,000 pounds.