Help with head setup please. - HeliFreak
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Old 07-25-2008, 04:52 AM   #1 (permalink)
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Default Help with head setup please.

I seem to have a problem that won’t go away. I’ve watched all the videos, multiple times, but I’m getting nowhere.

I “think” the swash, washout arms and fly-bar cage are all level but I come up with different blade pitch readings on opposite sides of the heli. On one side, I come up with 10-0-10 and on the other side, 8-(+3)-12, or something close to that.

I leveled the swash and was able to get it perfect through the entire range of movement using the t-rex tool so I think that it is correct. The other two I have to eyeball.

Here are some pix and please let me know if you see anything that I am missing. I can’t seem to figure it out.

Thanks.

Roger.


Pix are at half stick.

Edit: Pix show opposite sides.
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Last edited by Roger_15; 07-25-2008 at 05:13 AM.. Reason: Edit
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Old 07-25-2008, 05:32 AM   #2 (permalink)
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Check the lengths of your pitch control rods. They should be the same length. Have you tracked the blades?
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Old 07-25-2008, 09:07 AM   #3 (permalink)
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Sorry, I should clarify here a bit. When I measure the pitch of my blades, I do both blades on one side of the heli. Then I turn the heli around and do the same on the other side. This is where the problem is. On one side with “both” blades I get perfect pitch readings. –10 0 +10. When I do the other side of the heli, I get a different reading and it’s off by maybe 3 or 4 degrees. I believe it has been this way from the beginning.

I hope this makes sense.

Thanks.

Roger.
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Old 07-25-2008, 12:09 PM   #4 (permalink)
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that sounds wierd. what does it do in flight? is your tracking off?
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Old 07-25-2008, 02:36 PM   #5 (permalink)
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Thanks John, she flew okay I guess but I have only been hovering. I tested her when I bought the pitch gauge, and I know it was off then. Not knowing what the heck I was doing, I didn’t try to fix this until now…after installing the new servos.

I have looked closely at the head and I can’t see anything wrong with it. As the picture shows, the swash, washout and flybar all look fairly level. There is no binding that I can detect so I am at a loss.

The only thing I haven’t touched yet is the wash out arms, but they seem okay. Like you said, it seems odd and I am hoping someone has had these systems also and has a fix.

If anyone needs them, I can post more pix or even a movie.

Any help would be appreciated.

Thanks.

Roger.
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Old 07-25-2008, 04:09 PM   #6 (permalink)
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look the the mixer the longer side points away from the blade it controls
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Old 07-25-2008, 04:13 PM   #7 (permalink)
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need a pic with the blades across the body with a side view shot of swash and head
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Old 07-25-2008, 06:01 PM   #8 (permalink)
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Quote:
Originally Posted by sokal View Post
need a pic with the blades across the body with a side view shot of swash and head
Thanks Sokal for your help.


Here are the pix you asked for and a couple more. If you need anything else just ask and I will try to get them up for you. All pix are at half stick and 0 pitch.

Roger.







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Old 07-25-2008, 07:26 PM   #9 (permalink)
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at a concert using my phone to help need a side proile with blades of to the side so I can see the siscor arms ball linksI saw your pics look like one side of swash is low need a closer side pic thanks
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Old 07-25-2008, 07:28 PM   #10 (permalink)
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hit me up on msn messanger for a direct chat and pic send sokal88@hotmail.com
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Old 07-25-2008, 08:42 PM   #11 (permalink)
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sry msn not workingwill help after
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Old 07-25-2008, 08:55 PM   #12 (permalink)
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Thanks Sokal, enjoy the concert! This can wait till tomorrow anyway.

I sent four pix to you and just let me know what you think. I am on IM as well under the same username as here@ hotmail.

Thanks again!

Roger.
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