RunRyder RC
WATCH
 1 page 415 views POST REPLY
HomeAircraftHelicopter
e-
Align
Other › Tracking Problem
10-11-2005 04:08 PM  12 years agoPost 1
Campbell Grant

rrApprentice

UK

My Posts: All  Forum  Topic

Hi

I have CCPM 450XL High Pro bird with the Align metal swash and rotor hub.

I cannot get the tracking right. At zero degrees pitch, at 90% in governor, the blades are about 1.25" different. At 10 degrees the blades are about 1/2" different

I have tried altering the relevant linkage, but to no avail.

I have searched RR and the nearest reply that possibly matches my problem is from SJS, but I do not understand his solution.

Please can you help.

Campbell Grant

I HAVE LESS HOVER THAN THE BOVER

PM  EMAIL  Attn:RR  Quote
10-11-2005 04:21 PM  12 years agoPost 2
Vale

rrNovice

England

My Posts: All  Forum  Topic

Hi grant

i know what you are going through but you will get there.

Supply more details please

Motor,ESC,Receiver, Transmitter.

to track the blades correctly you need to adjust the links below the Blade holders for larger adjustments.

These links are connected to a arm and the longer link going down to your swash plate makes finer adjustments.

But This is dependant on eveything else setup correctly before you fly and crash i would take it to a club or someone with experience.

The one thing i could not get my head around was how helpful in this hobby are.

Check trextuning.com for pictures as to how things should look.

Hope this helps.

Also having seen an earlier post about the swashplate might be worth a double check on that.

This is now becoming an obsession!

PM  EMAIL  Attn:RR  Quote
10-11-2005 04:47 PM  12 years agoPost 3
Campbell Grant

rrApprentice

UK

My Posts: All  Forum  Topic

Vale

Many thanks.

My stuff

FF9
Align 25 ESc (with separate BEC)
Futaba 146ip
Kokam 2000 3s1p
Align 3200kv motor.

I have altered the linkage rod A (the coarse adjustment) a turn at a time.


Campbell Grant

I HAVE LESS HOVER THAN THE BOVER

PM  EMAIL  Attn:RR  Quote
10-11-2005 04:48 PM  12 years agoPost 4
JiggerInc

rrApprentice

Arlington, VA

My Posts: All  Forum  Topic

I had a set of Align carbon blades that I *could not* track. I must have popped and adjusted links in various combinations 30 times. I burned through 3 packs just tracking. Then I took the blades off and set them on a table and realized that one of them was warped upward around the blade root. Just wanted to point out that if you're trying the link adjustments and you can't dial it in, you should try different blades and makes sure its not warped blades.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
10-11-2005 04:52 PM  12 years agoPost 5
Campbell Grant

rrApprentice

UK

My Posts: All  Forum  Topic

JiggerInc

Many thanks.

I did a search and found this from SJS: -
figured out the problem. One of the links off the main grips was bad. Bas, as in it was about 2mm shorter than the normal ones. I upgraded to the cf frames off the stock 450x and swapped the grey links for black ones. I guess I missed that one. Since then, the tracking is on the money and there is no difference in tracking at any degree.
I am not sure what he is saying, have you any ideas.

I think I will PM him


Campbell Grant

I HAVE LESS HOVER THAN THE BOVER

PM  EMAIL  Attn:RR  Quote
10-11-2005 04:56 PM  12 years agoPost 6
JiggerInc

rrApprentice

Arlington, VA

My Posts: All  Forum  Topic

Probably best to PM him, but I think he's talking about the very short links between the main blade grips and the mixing arms on the flybar seesaw. Apparently he only tried to adjust tracking with the "fine control" links that run from the mixing arms down to the swash. Adjusting those shorter arms between the grips and mixing arms allows for a "course control" over individual blades' pitch.

It sounds like his solution was to make up some new links using the better black link ends... though I don't see why he couldn't have just lengthened or shortened them.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
10-11-2005 05:03 PM  12 years agoPost 7
Campbell Grant

rrApprentice

UK

My Posts: All  Forum  Topic

Jiggerlnk

Many thanks.

Yes, I think I understand now.

I checked the initial length of the links to make sure they were equal and I have tried the coarse adjustment (Linkage rod A) by one turn at a time.

Do you think one turn may be too much and I could be over compensating and therefore should I be using the fine adjustment?

How "sensitive" is the linkage rod A?

Many thanks

Campbell

I HAVE LESS HOVER THAN THE BOVER

PM  EMAIL  Attn:RR  Quote
10-11-2005 06:33 PM  12 years agoPost 8
steven_couch

rrNovice

San Jose, CA

My Posts: All  Forum  Topic

Hi Grant

Even 0.5 inch is way off. What blades are you useing? I have one set of align plastic blades that are bent and will not track. Many others have had bad experiences with the align plastic. Go with the align wood blades. One half of a turn of the linkage will move the wood blades about 1/4".

Steve C.

slick

PM  EMAIL  Attn:RR  Quote
10-12-2005 07:44 AM  12 years agoPost 9
Campbell Grant

rrApprentice

UK

My Posts: All  Forum  Topic

Hi Steven

I am using the yellow 325 Fiber Blades.

An experienced model heli pilot friend is going to testmy tracking with some cf blades today.

Will post the results.

Campbell

I HAVE LESS HOVER THAN THE BOVER

PM  EMAIL  Attn:RR  Quote
WATCH
 1 page 415 views POST REPLY
HomeAircraftHelicopter
e-
Align
Other › Tracking Problem
 Print TOPIC  Make Suggestion 

 3  Topic Subscribe

Monday, July 16 - 11:38 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online