Synergy Electric Helicopters > Synergy 766

766 Gasser

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Chris Olson:
For Christmas this year Santa had a bit of a problem. Only halfway thru my list he was over maximum takeoff weight. So he had no choice but to dispatch The Brown Truck with my new 766 kit in it. But even The Brown Truck couldn't carry all of it. So the next part came from Carey Shurley at Gas Powered Helicopters in the good old USPS truck with my conversion kit and TRM Power Pipe.

I just got started on assembly of my 766. But I have an 806 gasser here with a Toxic VX300 in it that I'm putting a Pixhawk autopilot in with a downstream Futaba CGY750. The bench is kind of a mess right now, but I have the sub-assemblies from the donor kit built, and part of the gasser frame assembled for the 766. My 766 will have a Zenoah Toxic VX310, which is still a couple weeks out from being built at TRM Power. Carey will be sending that when it gets built.

I'll have some more photos of this build as I progress with it.

https://photos.app.goo.gl/yFi1FAimYohGPGAL2

https://photos.app.goo.gl/BOdyGqg1KTZTVRxt2

https://photos.app.goo.gl/b5paYQKtX8hw3UMf1

https://photos.app.goo.gl/44UOdwnuZ6f9QPHJ2

Chris Olson:
There's too many small details to show everything on a build for one of these. The assembly manual for the gasser conversion is 60 pages.

Obviously the electric frame sides, battery tray, and a few other small parts like the motor mount and doublers are not used for the gasser conversion. Here is a couple shots of both sides of the frame with it married. And one of the primary drive and clutch bell. The belt primary is a .917 ratio, the pinion gear is 17t. So the final drive ratio is 7.5:1. 10,450 engine rpm is 1,400 rpm headspeed.

Chris Olson:
Closeup photo of the primary belt drive and clutch, and top start shaft. The pinion shaft bearing blocks can be slid back and forth to adjust main drive gear backlash. The belt is adjusted with set screws in the holes in the clutch bearing blocks that push against the pinion shaft bearing blocks.

steffgiguere:
A buddy of mine at our club did the same conversion, flies great, looks great.

Chris Olson:
Yep, very impressed with the conversion kit. It is extremely well designed.

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