ocr: CONTROL DIMENSIONS HIGH-LIFT DEUICES CHORD RATIO CONTROL DEFLECTION flap DD DDD DDD aileron (up/down) increase in stall angle caused (degrees) BD DD BBD by leading-edge devices elevator or LL DDE L DDD a000DD DDD (up/down) Kruger Slats flaps provide yield an 8 a 5 degree degree increase increase in in stall stall angle. angle. stabilator DDD DDD LONTROL-EFFECTIDENESS APPROHIMATION rudder DDD DDD (degrees) wing corrugated, has and NON-FLUSH there rivets, are control control-surtace surfaces gaps are JL JUL roll spoiler (degrees) but wing some has FLUSH control-surface rivets, smooth gaps contro ...