The Federal Aviation Administration (FAA) last week gave clearance to Yamaha’s RMAX remotely piloted helicopter, which is large enough to carry tanks of fertilizers and pesticides.
The RMAX is the first time a drone big enough to carry a payload has been approved, said Steve Markofski, a spokesman for Yamaha Corp. U.S.A., which developed the aircraft. The RMAX weighs 207 pounds.
Previously, the FAA had only approved smaller unmanned aerial...