Jason Hill has spent most of his career attempting to redefine the rotorcraft, and his futuristic HX50 chopper now looks like it may indeed establish another helicopter category. With its all-new design, from turbine to touchscreen the sleek flying machine incorporates a high-inertia three-bladed rotor system that should deliver a cruising speed of 160 mph with an 800-mile range. And while it’s purported to fly well above its light-helicopter competitors in terms of avionics, styling, and interior space, what’s perhaps most impressive about the five-occupant whirlybird is its intended starting price of approximately $798,000—about a third less than what a comparable rotorcraft might cost. “The machine is designed to feel like a supercar,” says Hill. “It’s also geared to make everything about helicopter flying simpler than ever before.” The HX50’s carbon-fiber monocoque frame is a novel feature for a light-category helicopter, and the touchscreen display is proprietary to Hill. As for the roll cage,..