Model 4 manual question?

[TJay 1041]

Anybody with a model 4 kitfox manual out there can you tell me what the measurement is from the root to the #3 rib? I would like to know where to start at thanks.

[motortommy 31]

like this? (sorry written numbers are metric conv.)

 

Edited 29 Dec 2021 by motortommy