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The development of the ZENYT was based on our many years of experience in the PSG Scale mechanics and our rotor heads as well as the experience gained in our motorsport division PSG Racing Parts.

Material and construction are uncompromisingly designed for extreme performance and precision. Look and feel convince one hundred percent.

The result is a completely new and high quality 3D helicopter of the 750 class, which stands out technically, optically and qualitatively from existing concepts.

Scale Mechanics

Our concept goes an entirely new way, to fine tune the individual speeds of a helicopter mechanics. In the past, it was only possible to change the head speed by the ESC, the pinion, the Motor KV or the battery cells.

Certainly, at the first look this seems to be a simple and economic solution, but it also brings significant disadvantages ... the tail rotor speed decreases, the current Ampere can rise and the ESC unnecessarily operate at partial load.

In our mechanics fundamental changes of the main rotor speed are made in the second gear stage, and provide the distinct advantage of not affecting the rear speed.

By this you achieve speed differences on the main rotor head up to 1000 revolutions, without even losing one revolution at the tail rotor.

The milled herringbone gearing also prevents occurring axial forces. This protects the ball bearing, while enabling increased power compared to conventional helical gearing.

The modular concept is also prepared for customized versions of the mechanics.


Our rotor head kits are available for
500 / 600 / 700 / 800 Class helicopters.

Each size in 3, 4 or 5 Blade Versions.

The rotor heads are available as

  • Basic Kit (without linkage)
  • Align/T-Rex Kit ( Just Change your Flybar or FBL Rotorhead on your T-Rex to our multiblade rotorhead)
  • Universal Kit ( Fits most types and brands of helicopters)
  • Up from the 600 series available as a "Pro" Version, including our PSG swashplate.

For more details refer to the rotor heads section or our online shop