6-2-2017

Thanks Bob, still work to do but I am close, I might need to down size the models a little bit and KISS, maybe more towards semi-scale simplified. More to come. 

Cheers, Ray K.

6-1-2017

Maybe rubber powered helicopters are not meant to be this big, at least geared ones anyway. I went for another flight test, put 500 winds in her and the transmission slipped, under lower torque, no problem, under higher torque the gearing slips, no damage to the gearing so it is just slipping, the miter gear box held up just fine.
I will have to look into gearing that have deeper teeth to prevent slippage. Back to the drawing board.  I will post a video of this as soon as I can.

Cheers, Ray K.

5-31-2017

Here's the video, more to come.

Cheers, Ray K.

https://youtu.be/A7ef86svkBk

Fantastic Ray

I assume that once the rubber motor runs down she just auto rotates to a landing?  Never seen a real rubber powered Free Flight helicopter flight!
Tom

5-7-2017

Here's the ridged rotor hub, no lead lag hinges and no feathering pin, the fly bar is there just for looks and is not functional. I will do another low power test to see what happens next.

Cheers, Ray K.

Ray,
You might want to find some "Dental Rubber Bands"  They're the kind used for braces and they keep the tension well and are pretty durable.  Usually can be found in the Drug Store or the Drugstore section of Walmart and other chain stores.
Tom

4-24-2017

Thanks Tom, I hope so.

Cheers, Ray K.

4-24-2017

She is ready to fly, well test anyway, I did not put the glass on yet but we are ready to give her a try, we will see what happens in the next day or two.

Cheers, Ray K.