In a turn, if you bank further, the downward moving wing's angle of attack is decreased. You actually have to worry about the outside wing and the increased angle of attack as it is moving. The reduced downward deflection of the aileron helps in that aspect.
Chris Pryce On Dec 13, 2014 8:51 AM, "Tinyauto--- via KRnet" <krnet at list.krnet.org> wrote: > > The idea of differential control having a side advantage of reducing the > chance of stall is nonsense to me. Lets say we are flying along checking > out something on the ground and are in a moderately steep bank of maybe > 30 de > grees and allow the airplane to get somewhat slow. It would seem if the > pilot would slam in full deflection that the differential would actually > cause a stall of the already slower traveling wing on the inside of the > turn. > > Now I realize if the airplane didn't have differential control and the turn > didn't stay coordinated that the nose of the airplane would blank out part > of the wing and possibly causing a stall. Differential aileron helps an > airplane fly easier (less pilot attention) due to not having to use two > separate controls to keep flying coordinated. However I am just not > grasping > the idea of it "reducing the tendency for the wing to stall" part. Am I > wrong? > > Kevin Golden > Harrisonville, MO > > > > > > > Differential aileron deflection > > > <http://en.m.wikipedia.org/wiki/File:DifferentialAileron.svg> > > http://upload.wikimedia.org/wikipedia/en/thumb/3/3a/DifferentialAileron.svg/ > 450px-DifferentialAileron.svg.png > > Illustration of a Differential aileron > > The geometry of most aileron linkages can be configured so as to bias the > travel further upward than downward. By excessively deflecting the upward > aileron, profile drag is increased rather than reduced and separation > drag > <http://en.m.wikipedia.org/wiki/Flow_separation> further aids in > producing > drag on the inside wing, producing a yaw force in the direction of the > turn. > Though not as efficient as rudder mixing, aileron differential is very > easy > to implement on almost any airplane and offers the significant advantage > of > reducing the tendency for the wing to stall > <http://en.m.wikipedia.org/wiki/Stall_(flight)> at the tip first by > limiting the downward aileron deflection and its associated effective > increase in angle of attack. > > Most airplanes use this method of adverse yaw mitigation due to the simple > implementation and safety benefits. > _______________________________________________ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options >
