dahld
Senior Heliman
Location: Bakersfield, CA, USA
My Posts This: Topic Forum | Pushing the limit maybe??? (Sorry for the length...but had to explain).If you are running 560's (about the largest blade you can fit on a 500), @ 2300 head speed (pretty high really), on Logo 500 main grips (they are smaller than the 600 grips, and the bearings are smaller), then you may be at the mechanical limits of the design. Slow it down  .
The old (well still current I guess) fly bar and nitro mentality was that you need head speed to get performance. Us V-Bar and electric dudes need to think differently.
You don't need max head speed to get cyclic performance with the V-Bar. Just make it happen with the programming. And as for collective "pop", you can get the same performance with less head speed, by maxing out the collective range (+/- 14 degrees or so), using the "collective pump" in the V-Bar program, and the fact that a quality power system with quality battery packs will pull through maneuvers and won't bog like nitro does. Since the head speed stays more constant during maneuvers, you don't need a bunch of wasted head speed going in.
We used to run 2350 on the Logo 500, and 2300 on the Logo 600, and went through thrust bearings pretty regularly. Then at the XFC this year I got a serious talking to by the designer of Mikado helis, and he convinced us to lower our head speeds some, and reap the benefits (longer flights, easier on the batteries, and less stress on the machine), without sacrificing flight performance. We did, made some programming changes, and have never looked back.
So maybe try dropping your head speed at least down to 2200, maybe more with some experimentation, and make-up the difference as outlined above. Even 100 rpm will make a big difference in the life of the bearings, and you get all the other benefits as well .
Hope this helps.
, Dave
Kyle Dahl (16)
Sponsored by:
Mikado
Thunder Power
Kontronik
Scorpion
Egde Blades |
