Actuator-less tilt and variable pitch rotor technology...

No servos or complex mechanisms.
Nacelles are actuated by rotor torque. Motor direction is changed to go from vertical to horizontal flight.
Motor shaft direction also actuates blade pitch changes for efficient flight in both vertical and horizontal flight modes.
Simpler set ups use a bidirectional propeller to facilitate motor reversal.

Slow motion video of mechanism entering vertical and horizontal flight modes.

Animation of mechanism entering vertical and horizontal flight modes.

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Electron Flight LLC

Email | info@electronflight.com

Twitter | @ElectronFlight