Well, I did it... I built a heli from scratch parts and it works great. The 328 head with the Bell-Hiller mixer is absolutely the best mod I have ever done. I am sold on this combination! Before I go any farther, here's a quick video of how stable this baby is:
Here is a list of + and - points:
+ Eliminates TBE and most of the rocking
+ Acts more like a CP heli where if you tip the blades it'll keep moving in same direction
+ Is absolutely excellent in wind! I had this on the trial run out in a 17mph wind with 32 mph gusts and I was holding better than ever!
+ I really like the 328 blades. They are better shaped than the 120's and seem to be a bit more rigid. They don't seem to break easily judging from the scratches on the first crash.
+ The CNC swashplate upgrades for the SR120 work with the Bell system.
+UPDATE! The combination of the
o stock 328 head,
o Xtreme flybar mount (center)
o Xtreme Spare Rods and Paddles for SR120 FlyBar
is a
SUPER combination. It makes my heli come alive!!
(HINT: Set your dual rates to low. You'll be surprised how much more response you'll be getting!)
The flybar breaks way too easily. I hit a twig on a tree, landed hard and broke the thing. (See above comment for solution).
Parts are not easily obtained. Have to order from China.
The 328 main shaft is drilled for the head screw so it's a must. It leaves about 2mm
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