Flight Test Results of a Trailing Edge Flap Designed for Direct-lift ControlThis report investigates boundary layer control and trailing edge flaps for direct-lift control. |
Common terms and phrases
1.0 DLC Null 60 percent N2 ACL's Actuator Airplane Response airplane-up angle of attack auxiliary flap deflection AUXILIARY FLAP STEP-30 BLC OFF 2.8 BLC ON h bleed air Boeing Company Boundary Layer Control change in lift Coefficient of lift CONSTANT ANGLES data were obtained deg FIGURE dh/dt Direct-Lift Control DLC flap effectiveness DLC Flap System DYNAMIC AND STEADY-STATE flap 30 FLAP AND 90 FLAP AND IDLE FLAP AND POWER FLAP CHARACTERISTICS-50 full-down gross thrust High-pressure compressor speed IDLE POWER impingement effects inboard engine increase incremental lift Incremental normal acceleration landing approach LEVEL FLIGHT lift coefficient main/auxiliary flaps maneuvers maximum lift Momentum Coefficient N2 POWER NASA noted null setting pitch attitude pitching moment POWER FOR LEVEL power settings Saux sec FIGURE spoiler deflections SPOILER STEP-40 spoiler steps stall STEADY-STATE LIFT CHANGE Step Initial flightpath Symbol Aux flap total ACL trailing edge flap true airspeed