Horizon Aeronautics is working on a proposal for an eVTOL hovercycle that employs a complicated and intriguing split-swashplate "Blainjett" variable pitch rotor system that only exposes half of each fan. Horizon claims it is highly efficient, which is strange.
HOW IT WORKS
To distribute thrust when a helicopter's top rotor spins, you must first grasp how the swashplate and cycle controls work. The height of the swashplate determines the pitch of each blade, which can alter individually. Pushing the swashplate up and down while it's flat will change the pitch of all the blades at the same time.
Helicopter pilots, on the other hand, can tilt the swashplate using cyclic control. Pushing the stick forward, for example, causes the blades to gradually tilt as they spin around, becoming flatter as they travel through the front of the plane and then pitching up to produce greater lift as they pass through the back. The aircraft pitches forward and accelerates in that direction as a result of the asymmetry in lift, with greater at the back of the disc. It's part of what makes helicopters such dynamic aircraft that the cyclic control can do this in any direction. These are some the details on how the prototype works.
Source: Newatlas
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