SHARE THIS > These unmanned K-MAX helicopters started flying missions in Afghanistan early 2012, and re-supply troops and augmenting Marine Corps ground and air logistics. Unmanned! It requires less than 2.5 maintenance man-hours per flight hour, and costs less than $1,200/HR in operating cost. The K-MAX is known for its awesome lifting capabilities of 6,000 LB, and this unmanned K-MAX has a NAVAIR flight clearance of 4,500 LB. It significantly reduces the need for ground supply convoys. No roads, no worries. Watch the video in HD below.