Phasing?

[furyevo]

I rebuilt my Evo .50 after a crash, and I have a weird problem now. When I do loops or flips, it pulls to the left. I have been having somebody watch my right hand, and I am not putting the right in myself. Is this a phasing problem? After the crash, it has a whole new rotor head, and main shaft. Rolls seem a little off, too. When I put the flybar even with the tail boom, the balls of the inner and outer swash line up. It didn't do this before the crash. What could be wrong?
When I say pulls to the left, I mean it is getting left roll with a backward pitch command. It seems to go right with foreward pitch.

[woodturner]

I'm new so this may or may not be of assistance, however did you have the head apart after the crash? If so may be the alignment of the Radius Block .

Page 16 of the manual or the link below shows initial alignment.

http://www.hirobotechnique.com/images/Manual/HmSo5EcU.gif

Hope this helps..

Please let me know what you find as I've just completed installing engine & radio in an Evo 50 I picket up from Greg. Maden voyage for me will be Mooresville NC this weekend..

Happy flyin'

Frank

[furyevo]

Yes, you are right, the alignment of the radius block is off. I was just hoping someone could clue me in on how to fine tune it. Phasing is the term for the alignment of the radius block.

[WayneBrown]

pretty easy to do, a lot harder to explain.
Loosen the hold bolt on the radius block, and turn the head block to align the head fore/aft, and look at the swashplate. Align the inner balls of the swash with the head, ie: fore/aft.

[Jafa]

There is also the method where you align the flybar in line with the boom and push your elevator forward/backward while holding the paddle - if the paddle tries to turn then the phasing is off, rotate the radius block and repeat again

It's a really easy method with positive feedback
It gives you a solid place to start from

If you are mode two be careful to not snag the aileron when doing this - that will turn the flybar