Rotor Technologies, Inc., the manufacturer of the largest spray drone in the world, is partnering with AG-NAV, a leader in precision navigation and flow control technology to ...

The helicopters tail unit is mounted high with a pair of non-moving horizontal stabilizers mounted below the tail rotor. In addition ... clamshell doors on the rear of the airframe to allow ...

Canada's Transportation Safety Board says the fatal crash of a British Columbia logging helicopter was caused when the chopper's rotor system broke up mid-flight. A final report from the board ...