Subject: Typical and maximum number of exposed strut threads as permitted for rigging on Piper aircraft.
Applicability: Piper J-3, J-4, J-5, and PA-11 through PA-22
Download PDF: Lift-Strut-Fork-Extension.pdf
Piper Strut Thread (Typical and Maximum Number of Threads)
As permitted for rigging
Per the Super Cub Owner’s manual, to obtain correct dihedral: “…the correct dihedral will be obtained when about seven threads on the lift strut adjustment forks are exposed. (A maximum extension of threads is permissible.)”
7 threads exposed (approx.) when rigged correctly.
15 threads exposed for maximum permissible extension.
This information is applicable for J-3, J-4, J-5 and PA-11 through PA-22.