Wings and things
Hi al.
Hopefully I can assist in clearing up some confusion regarding PA 28 wings. There are more differences than I know, but at a basic level, here goes:
Very earliest PA 28-140 Cherokee (Hershey bar) wing - negligable washout
Later PA 28-140 up to 180E (and PA28R-180 ArrowI) Cherokee (Hershey bar) wing - washout
PA 28-180 Archer I (and PA 28R-200 Arrow II) Hershey bar wing - washout and one foot extension each side of wing and stabilator.
PA 28-151, -161 Warrier II and III and -181 Archer II and III - taper wing with washout (see note below)
PA 28 RT-201 (and 201T) Arrow IV- taper wing with washout and increased span and fuel tankage (I think Arrow III has this wing as well)
*NOTE* PA 28-151 lower MTOW than -161 and I believe Flight Manual recommends for -151 one stage of flap for take off
I believe the PA 28-235 had the same wing as the Archer I, and the Dakota has the same wing as the -181, but I may be incorrect.
Hope this helps.
camlobe