Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Watch a helicopter fly, and the big spinning top rotor hogs the ...
Future Bell helicopter designs could come with split-tip main rotor blades and anti-torque control provided by a cross-flow fan embedded in the tail boom, rather than a traditional tail rotor, if two ...
A slew of patent awards for Bell over recent months – including a biplane tiltrotor, a pusher propeller drivetrain and an anti-torque tail rotor that can be turned through 90° – highlight the range of ...
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