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Wing fabric former plate

STEEL

Registered User
Hope someone can help.
My plan 10531 (Northland) for the fabric former plate has up to part number 10531-3.
The PA-18 parts catalog calls for a 10531-4 and -5 (LH and RHS) for a PA-18 150 and up.
anyone know where I can get the size table for A B C for the parts 10531-4 and 10531-5?
Thanks,
Neal.
 
The only difference is the length of the part due to different rib spacings on different rag wing Pipers. This part allows the fabric to dip up where the aileron pulley come aft of the rear strut.
 
Univair has them but they aren't really needed. They are just there to provide a trough or recess that you cut and glue the fabric to around the front wing strut attach and aileron pulley area. Most Pipers I've looked at don't have them, probably because they got lost over the years.
 
Having had to assemble an airplane where they did not install that fairing under the fabric I would recommend installing them. The pulley bracket on a Cub has to dip inside the wing a fair amount.
20160717_094342.jpg
 

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