Tailwheel/rudder mi...
 
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Tailwheel/rudder misalignment

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 John
Posts: 15
Active Member
Topic starter
 

There is an approximate 3 to 5 deg. disagreement between rudder and tailwheel alignment. When the rudder is straight, the tailwheel is steering to the right, and when tailwheel is straight, rudder is steering left. Tailwheel is new ABW/Scott 3200 installed per instructions with correct chain and springs, links even on each side when set straight with respect to rudder steering arm, very slight play. It appears that adding one link to the right side might correct the problem, at the expense of too much slack,or is there some way to adjust the rudder steering arm?

Thanks

John Hulls

 
Posted : 09/02/2017 4:38 pm
(@jcessna)
Posts: 55
Trusted Member
 

Hi JR; Members with more Stinson experience than me, may have better answers, and maybe you have tried this. With
the tailwheel disconnected will the rudder center? Check the rudder return springs to make sure one has not stretched, then
re rig the rudder system, center the rudder pedals with a board and clamps, adjust the turnbuckles to center the rudder. tighten
to correct pounds, then adjust tailwheel to center. Make sure the one rudder arm is not bent. When I am working on the rudder
and or the tailwheel I like to jack the tail, makes adjustments easier. When rudder and tailwheel are aligned in trail one
chain can be longer. What is the condition of your tailwheel springs?, they should be tight and aligned with the airplane centerline.
Have you installed a u shaped shim so that the tailwheel is tight to the spring? These are random ideas, like I say, other members
may have a better solution. One more, do you have rudder trim?
Good Luck Jim

 
Posted : 09/02/2017 8:27 pm
 John
Posts: 15
Active Member
Topic starter
 

The rudder pedal/rudder alignment is fine. Suspect that one of the rudder/tailwheel steering arms is slightly bent. The tailwheel aligns perfectly with the tailwheel spring.

Thanks

JRHulls

 
Posted : 09/02/2017 10:21 pm
Posts: 286
Reputable Member
 

Is the tailwheel perpendicular to the ground? Is it in the center of the plane? Measure from tailwheel to mains on each side. Its more likely to me the lower part of the rudder is bent more so than the steering arms being bent. Or it could be misdrilled.

 
Posted : 10/02/2017 10:55 am
(@jcessna)
Posts: 55
Trusted Member
 

John; Have you sorted out your tailwheel misalignment? I landed 1 foot short of the runway last Tuesday, my gear seems to be straight,
my punishment was to sweep the rocks off the runway.

Jim

 
Posted : 24/03/2017 10:42 pm
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