rebel tailend wrinkles

[Garry Wright]

I have FOKM's tailend apart to repair some wrinkles that appeared in the
Fus29's and the Fus30 as a result apparently of the following:

1. Tailspring is steel Cdn Tire unit per Wayne's design, recently
installed.

2. Tailwheel is Scott24B predecessor of and relabeled to Scott2000 which
is a solid rubber with a single arm rather than the dual arm per the
Scott3200.

3. My tailwheel slipped off the pavement - deliberately, then I believe
when coming back on the pavement the stress gen'd the wrinkles.

My conclusion is that the problem is a result of these contributors:
a) slightly high weight on tailwheel
b) solid unforgiving rubber tire of small diameter
c) single arm causing significant torque on tailspring

I have concluded that the single arm tailwheel is inappropriate for the
Rebel. Tubular frame aircraft seem able to handle it but this design
won't. I must now go thru the Ontario mods to check out rear end mods
that may not have been done so I include everything.

Pics of the damage are at

http://members.davincibb.net/wright

and are

fus53 wrinkles.jpg
tailend wrinkles.jpg

Please provide comments on suggested means for fixing up the fus53. It
is rather impractical to remove fus53 as that would probably entail
causing more damage in the reconstruction than would be caused by a
repair to fus53. I plan to straighten fus53, then put a witches hat on
the inside to stiffen it back to normal strength. Other ideas?

From the picture of the wrinkles, is there any mod missing that I should

be alerted to now that she is apart?

Garry






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