Leading-edge slat: Difference between revisions

;Automatic: The '''spring-loaded slat''' moveslies freelyflush guidedwith bythe [[wing Rolling-elementleading bearing | roller tracks ]]edge, orheld [[Bellcrankin |place bellcranks]]. In normal level flight,by the [[Aerodynamic force]] keepof the slatair flushedacting withon the wing leading edgethem. WhenAs [[Anglethe ofaircraft attack]]slows risedown, cause difference ofthe aerodynamic pressure,force (highis pressure in lower zone of the leading edge,reduced and low pressure in the uppersprings zone ofextend the wing), who cause that slat popped-outslats. Sometimes referred to as '''Handley-Page slats'''.

During World War II, German aircraft commonly fitted a more advanced version of the slat that reduced [[Drag (physics)|drag]] by being pushed back flush against the leading edge of the wing by [[air pressure]], popping out when the angle of attack increased to a critical angle. Notable slats of that time belonged to the German [[Fieseler Fi 156]] ''Storch''. These were similar in design to retractable slats, but were fixed and non-retractable. This design feature allowed the aircraft to take-off into a light wind in less than 45 m (150 ft), and land in 18 m (60 ft). Aircraft designed by the German [[Messerschmitt]] company, employed automatic, spring-loaded leading-edge slats, (deployed by aerodynamic pressure), as a general rule, except for the [[Alexander Lippisch]]-designed [[Messerschmitt Me 163B]] ''Komet'' rocket fighter, which instead used fixed slots built integrally with, and just behind, the wing panel's outer leading edges.