azsportpilot
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I found this on wiki and it made me wonder if there is any real advantage to the taper-wing or if it was updated for asthetic purposes... as it does tend to look more modern
Originally, all Cherokees had a constant-chord, rectangular planform wing, popularly called the "Hershey Bar" wing because of its resemblance to the convex, rectangular chocolate bar.
Beginning with the Warrior in 1974, Piper switched to a semitapered wing with the NACA 652-415 profile and a 2-foot-longer (0.61 m) wingspan. The constant chord is maintained from the root to mid-wing, at which point a tapered section sweeping backwards on the leading edge continues until the tip. Both Cherokee wing variants have an angled wing root; i.e., the wing leading edge is swept forward as it nears the fuselage body, rather than meeting the body at a perpendicular angle.
The documented takeoff distance, cruise speed, and landing distance of Cherokees of the same horsepower with different wing types is very similar and some of the differences that do exist in later taper-wing models can be attributed to better fairings and seals rather than the different wing design. The Hershey Bar wing design is not markedly inferior to the tapered design, and in some ways is quite advantageous. As Piper Cherokee designer John Thorp says: "Tapered wings tend to stall outboard, reducing aileron effectiveness and increasing the likelihood of a rolloff into a spin." [20]
As Peter Garrison further explains: "To prevent tip stall, designers have resorted to providing the outboard portions of tapered wings with more cambered airfoil sections, drooped or enlarged leading edges, fixed or automatic leading edge slots or slats, and, most commonly, wing twist or "washout". The trouble with these fixes is that they all increase the drag, canceling whatever benefit the tapered wing was supposed to deliver in the first place."........copied from wiki
does anyone here regularly fly both? any preferance? why?
Originally, all Cherokees had a constant-chord, rectangular planform wing, popularly called the "Hershey Bar" wing because of its resemblance to the convex, rectangular chocolate bar.
Beginning with the Warrior in 1974, Piper switched to a semitapered wing with the NACA 652-415 profile and a 2-foot-longer (0.61 m) wingspan. The constant chord is maintained from the root to mid-wing, at which point a tapered section sweeping backwards on the leading edge continues until the tip. Both Cherokee wing variants have an angled wing root; i.e., the wing leading edge is swept forward as it nears the fuselage body, rather than meeting the body at a perpendicular angle.
The documented takeoff distance, cruise speed, and landing distance of Cherokees of the same horsepower with different wing types is very similar and some of the differences that do exist in later taper-wing models can be attributed to better fairings and seals rather than the different wing design. The Hershey Bar wing design is not markedly inferior to the tapered design, and in some ways is quite advantageous. As Piper Cherokee designer John Thorp says: "Tapered wings tend to stall outboard, reducing aileron effectiveness and increasing the likelihood of a rolloff into a spin." [20]
As Peter Garrison further explains: "To prevent tip stall, designers have resorted to providing the outboard portions of tapered wings with more cambered airfoil sections, drooped or enlarged leading edges, fixed or automatic leading edge slots or slats, and, most commonly, wing twist or "washout". The trouble with these fixes is that they all increase the drag, canceling whatever benefit the tapered wing was supposed to deliver in the first place."........copied from wiki
does anyone here regularly fly both? any preferance? why?
