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Tail Wheel Shimy

Posted: Fri Feb 17, 2012 10:49 pm
by klehman
Hi Rick

FWIW MAM told me to keep the pivot vertical on their tailwheel and that
close was good enough. I think it is better to have it trailing with the
bottom of the pivot farther aft than the top than vica versa.
Ken

Rick Harper wrote:
G'day Guys ....

I lost (read ...dumb ass me deleted 'em somehow) ... all the great
advice I got re stopping my SCOTT 3400 tailwheel from shimmying after
landing !

Our Tailwheel is "leaning forwards" quite a bit ...
... (viewing the plane from the left hand side , the top of the pivot
is closer to the plane than the bottom of the pivot ).... so I guess
this gives it a huge trailing angle .. especially when you add the flex
in the tailwheel springs (I have 3 leaf steel ones) into the mix as well
!
From memory, I was told to make it the other way around ... have the top
of the pivot further away than the bottom ... yes ?

I was also told a while back to have two different strength springs on
each side ... but this did nothing to fix the problem.... so I took 'em
off again.

Any help GRATEFULLY received !

Thanks

Rick & Wendy Harper
541R


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Tail Wheel Shimy

Posted: Fri Feb 17, 2012 10:49 pm
by Rick Harper
G'day Guys ....

I lost (read ...dumb ass me deleted 'em somehow) ... all the great
advice I got re stopping my SCOTT 3400 tailwheel from shimmying after
landing !

Our Tailwheel is "leaning forwards" quite a bit ...
... (viewing the plane from the left hand side , the top of the pivot
is closer to the plane than the bottom of the pivot ).... so I guess
this gives it a huge trailing angle .. especially when you add the flex
in the tailwheel springs (I have 3 leaf steel ones) into the mix as well
!
From memory, I was told to make it the other way around ... have the top
of the pivot further away than the bottom ... yes ?

I was also told a while back to have two different strength springs on
each side ... but this did nothing to fix the problem.... so I took 'em
off again.

Any help GRATEFULLY received !

Thanks

Rick & Wendy Harper
541R



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Tail Wheel Shimy

Posted: Fri Feb 17, 2012 10:49 pm
by Rick Harper
Thanks Ken !
----- Original Message -----
From: klehman@albedo.net
To: murphy-rebel@dcsol.com
Sent: Thursday, February 27, 2003 1:34 AM
Subject: Re: Tail Wheel Shimy


Hi Rick

FWIW MAM told me to keep the pivot vertical on their tailwheel and
that
close was good enough. I think it is better to have it trailing with
the
bottom of the pivot farther aft than the top than vica versa.
Ken

Rick Harper wrote:
G'day Guys ....

I lost (read ...dumb ass me deleted 'em somehow) ... all the
great
advice I got re stopping my SCOTT 3400 tailwheel from shimmying
after
landing !

Our Tailwheel is "leaning forwards" quite a bit ...
... (viewing the plane from the left hand side , the top of the
pivot
is closer to the plane than the bottom of the pivot ).... so I guess
this gives it a huge trailing angle .. especially when you add the
flex
in the tailwheel springs (I have 3 leaf steel ones) into the mix as
well
!
From memory, I was told to make it the other way around ... have the
top
of the pivot further away than the bottom ... yes ?

I was also told a while back to have two different strength springs
on
each side ... but this did nothing to fix the problem.... so I took
'em
off again.

Any help GRATEFULLY received !

Thanks

Rick & Wendy Harper
541R



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