Now we are getting somewhere. yay !! This has been my suspicion with Delmar. There is no looseness anywhere on the linkages, and I tricked out the steering damper. Another thing that had an affect was I lowered the air pressure in the nose wheel a few pounds BUT... BUT.... Delmar can get into a hella-shimmy taxiing if the conditions are right. Every once in a while.... you have to stop the plane and you'd swear something was going to tear off the front end. Nothing stops the shimmy except stopping the plane completely.
My spidey senses have lead me to the steering rods more than once but I have never heard anyone speak of this as a root cause. To me.... weak steering rods allow excessive movement and exacerbate the shimmy.
As for the inflight affect... my mechanic adjusted my steering rods and they were off a bit. Actually, my rods had extra tension on them, over extended to put additional pressure (sping tension) on the nose wheel. To me... someone was trying to compensate for weak springs or wear.
Great stuff !! I will now find out how these things are made. From my observation on how mine work... it feels like just a tube with a spring in it. Another QUEST !! I'm loving it !!
Thanks Kandace for getting this started up.
