VPP (variable propeller pitch)

/!\ UNTESTED !
/!\ Not in plastic, designed for aluminium !

Attemps to create a variable propeller pitch system for drone motor... in fact not really VPP, not adjustable in flight but before it.

AIM1 : Reduce the pitch of a folding propeller in order to adapt a larger one without creating more drag (so electric consumption) while it push air on a larger surface which possibly enhance efficiency (so endurance).

AIM2 : Adapt the propeller pitch to the equipment of the drone, so it's mass, allowing to fly safely and more efficiently with a wider mass range.

Tarot folding hub is +-12g, this VPP hub +-19.5g in aluminium (density 2.7), so 78g on the 4 motors of a quadcopter.

For motor hub with 12mm diagonal M3 flanged srew's (quite usual).

In files plate's for -5° and -2.5°, possible to make from -10 to +10.

Should require a very accurate CNC machining (untested).
Need to thread the central hole M3x0.5 to srew the setting plate (use loctite!).

Difficult to produce o