Cessna Wing Spars

Sunday morning curiosity. Is an early (‘50s) model 180 spar different than the later models? Did the spar get stronger as the gross weight increased? Did the 180 get the same spar as the 185 when the 185 cabin was integrated into the 180 line? I’ve never paid attention to what’s inside the wings.

Thanks.

I know there are different spars Always fun doing an inspection and noticing it has 2 different model wings on it...


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