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HomeAircraftHelicopterThunder TigerOther › Push-Pull on Raptor 50V2
12-12-2004 12:12 AM  13 years agoPost 1
Dr.Phil

rrApprentice

Oslo, Norway

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Just installed the push-pull upgrade on my Raptor 50V2.
Both linkarms are equal length, and everything looks great.
One question though: The endpoints was 100% both directions before I installed the push-pull.
Now I only get 66%!
I have changed servowheel so I guess this is why, but is this ok???
I didn't seem to get equal travel with the original servo wheel with 10.5mm link position.


Philip
Rave ENV, Stratus BW,Trex700 V-bar,Furion450
www.airheads.no,Team Hobby24

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12-12-2004 12:29 AM  13 years agoPost 2
PaulH-MA

rrVeteran

Boston, MA

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Look at the horn used for the push-pull linkage carefully. You'll see that the linkage from that horn to the control surface moves the same distance that it always did. The push-pull links that go from there to your servo are inside of the control surface link. That means they're moving a short distance: same angular displacement at a smaller radius to the pivot point.

If you want your ATV to be 100% again, you will have to move the links on your servo closer to the middle. However, you will end up with the links not being parallel. I don't know if this would cause any other problems or not.

--Paul

TREX 450
Bergen Intrepid Gasser x2

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12-12-2004 10:44 AM  13 years agoPost 3
Dr.Phil

rrApprentice

Oslo, Norway

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I didn't seem to get equal travel with the original servo wheel with 10.5mm link position.
Just to clarify, without the push-pull there were equal travel.
I meant that WITH the push - pull upgrade and the 10.5 link posision.

Here is a picture of my setup


Philip
Rave ENV, Stratus BW,Trex700 V-bar,Furion450
www.airheads.no,Team Hobby24

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12-12-2004 10:56 AM  13 years agoPost 4
Al Magaloff

rrMaster

12,199 Posts- Enough Time Wasted. See Ya!

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.

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12-12-2004 10:58 AM  13 years agoPost 5
Al Magaloff

rrMaster

12,199 Posts- Enough Time Wasted. See Ya!

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Try moving the balls in on the aluminum bellcrank. You also want 10.5mm servo arm dimension on the servo. For best results, the bellcrank and servo should have the same dimension, and link rods equal length.

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