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lperagallo
04-09-2008, 09:50 PM
What's more important when setting up linkages, getting the washout arms parallel and level or the bell hiller mixer arms level when at mid stick, zero degrees pitch when you can't seem to get both?

Two Bergens, same length arms, different results. How frustrating:confused:

Lou

rkeith2
04-09-2008, 10:03 PM
Ah Grasshopper - therein lies the ancient secret of bell hiller mixing set up to prevent binding at full pitch in both directions.

I give more concern to 90 degree setups all around at midstick and then find the best mix in the mix.

cbergen
04-09-2008, 10:52 PM
Is this between the gasser and the turbine?

I would say it's more important to have the bell mixers level at 0 degrees, as long as your getting the pitch range you need.

You may also have 2 different heads.....The "newer" version is 1/8" taller. The added distance is between the flybar and head axle.

lperagallo
04-10-2008, 07:57 AM
Chris,

I knew you had the answer.:clappp Yes, this is between the Gasser and Turbine. I thought here was a difference in the distance, but it's really hard to measure. Can I just start at the washout arms and get them level then move up to the Bell Hiller? My biggest concern was making the arms from the flybar to the washout arms too short. Is it OK to have them short enough to level the washout arms? If so, I'll just start from the bottom and work to the top.

Now I have the bell hiller arms level, but the washout arms aren't. In fact the washout arms get level at the lowest collective position. I get +10 to -8 on the pitch.

Lou

cbergen
04-10-2008, 09:43 AM
Do you have the right main shaft in there?

+-12 pitch should not be a problem......

With a driven tail the shaft is supposed to be of the longer variety....

Also verify your ATV's are at or higher than 100%.

Start at the washout arms, level them with the swash at mid-travel, work your way up.

This of course assumes the "popsicle" sticks are also level at mid stick.

lperagallo
04-10-2008, 01:29 PM
Chris,

Yes, I have the correct main shaft in there. Standard set up no driven tail. I have the Popsicles level and swash level. ATV's on collective is a bit over 100. I just need to shorten the links between the flybar and washout to get them level. Then I will continue to work my way up. I was using the same length from the Gasser. I was trying to get both machines the same. I guess I shouldn't try to do that.

I'll see how it goes tonight. I suspect that it will be fine with the shorter links between the flybar and washout arms.

Lou

rkeith2
04-10-2008, 06:41 PM
Lou -

Need a close up pic of mine or are you on top of it.

lperagallo
04-10-2008, 07:57 PM
Ron and Chris,

I got it figured out. I just started from scratch. Started with the collective servo, to the links to Popsicle, made sure I had 90 degrees everywhere. I didn't like them so I squared everything up. Then on to the washout arms. I needed to shorten then links a bit between the wash out arm and flybar . At mid stick I levelled them. On to the bell hiller arms. To get zero degrees I ended up making the short link a bit longer and then I levelled them off and got zero degrees.

Next I went to full stick. I only had 8 degrees. Went into the DX7 and increased the end point until the wash out pins went to the top. Now I have +11 degrees. I almost thought I would have to go to a bigger wheel on the servo to get the full throw, but it just reaches the top and bottom. At full down I had to do the same thing. Now I've got +11 through -11. At mid stick, zero degrees and everything is level.:thumbup:

There are just some times where it pays to start off from scratch. It's not always fun, but it's sometimes required.

Thanks for the help :noteworthy

rkeith2
04-10-2008, 07:59 PM
Egg cell nt