Kamov Ka-50 with pitch controlled Trefoil for 400 size

[Lupusprimus]

The largest so far resulting model has 62 cm length and is a Kamov Ka-50 Werewolf / Black Shark 1:24 scale. It has a 2 x Brushless self-built mechanism with belt drive, a pitch controlled Trefoil of Skytec model and corresponding 3D printed semi symmetrical blades. In cabin area enough place for cabin with pilot is (are two of them, already developed for the Ka-52).
You also can fly it with to brushless converted Walkera Lama 400 and Big Lama from Esky.

[Planehazza]

Very nice. Always loved the KA 50

[Peteski]

Another stunner. I can feel a winter project coming on!

[gazmk2]

Wow, some serious skill has gone into that! Do you have any video of it flying?

[Lupusprimus]

No, there is there is a video. This is to make always very complicated. There is only that of the mechanism nor as a trainer.

https://www.youtube.com/watch?v=nG-jmQSitfM

[dillwhacker]

That is so very neat and cool, especially the dual belt drive.
Looks like it has two separate ESCs?
How does the 'tail' gyro work - differential PWM control signal to the two ESCs- hmmm, how do you achieve that?
Great stuff!

[Lupusprimus]

Each Brushless Motor has its own ESC. The compensation is handled by a coax mixer. The shafts are driven with toothed belt.

[dillwhacker]

OK cool - coax mixer - I didn't know such things were available

[Granpappy]

I just love the engineering and design of this model. Looks like real quality. Love it and thanks for sharing.

[Lupusprimus]

The coax mixer was produced by Dionysusdesign in the USA. I bought several.

[dillwhacker]

The coax mixer was produced by Dionysusdesign in the USA. I bought several.

Thinking about it, you could probably just use a V-tail / elevon mixer...