What is the effect of slats?

The slat effect. The velocities at the leading edge of the downstream element (main airfoil) are reduced due to the circulation of the upstream element (slat) thus reducing the pressure peaks of the downstream element. The circulation effect.

When should flaps be retracted?

Once airborne the aircraft needs to climb as quickly and as efficiently to the intended altitude. However, the flaps, as they create drag reduces climb performance quite significantly. To avoid this, the flaps need to be retracted once in air. The lowest altitude for flap retraction by regulations is 400ft.

Why is the a380 landing gear tilted forward?

When the lower tire hits the tarmac, the whole bogie will rotate to place all wheels on the tarmac together. Tire rotation and tilting freedom prevents snapping off the gear legs.

What is the difference between flaps and slats?

With exceptions, normally the flaps are on the trailing edge of the wing and the slats are on the leading edge of the wind. Slats are on the leading edge of the wing and are used to create more lift at lower speeds. Flaps are on the trailing edge and are used to trim the fight characteristics for better control.

What advantage do flaps and slats give an airplane?

The flaps and slats move along metal tracks built into the wings. Moving the flaps aft (toward the tail) and the slats forward increases the wing area. Pivoting the leading edge of the slat and the trailing edge of the flap downward increases the effective camber of the airfoil, which increases the lift.

What is aircraft flap retraction?

Flap retraction is part of the takeoff and climb out procedure. Flaps are extended on the ground before takeoff to increase the lift at low speeds. Once the aircraft has achieved a stabilized climb and a safe airspeed and altitude, the flaps are retracted to achieve the optimum lift and drag configuration.

What happens when you retract flaps?

Flaps. Drag decreases as the flaps are retracted, allowing the airplane to accelerate to a rate that will generate lift equal to that lost by the retracting flaps. The goal is to do this without losing altitude.

What do you mean by retract?

1 : to draw back or in cats retract their claws. 2a : take back, withdraw retract a confession. b : disavow. intransitive verb. 1 : to draw or pull back.

Why does the landing gear retract into the wings and or fuselage during flight?

2. Why does the landing gear retract into the wings and/or fuselage during flight? Explanation: Aircrafts have landing gear that retract into the wings and/or fuselage to decrease drag during flight. Drag slows down the aircraft, thus increasing the flying time between two places.

What are the different flaps on a Boeing 737?

Unlike the 737, it is unusual for crew to skip standard flap settings during extension (other than F15/F25) and generally an indication of a poorly planned/managed initial approach. The “Standard” approach/Landing is Flap 1, Flap 5, Gear Down Flap 20, Flap 30.

Why do 777s have speedbrake instead of flaps?

The 777 FCTM recommends against significant Speedbrake extension with Flaps in excess of Flap 5 (due turbulence over the horizontal stabiliser). Other than this, Speedbrake is very much preferred over Flaps as a means of increasing drag on the aircraft when fast/high on descent/approach.

What flaps do you fly to get out of a runway?

For the 777-200 and -200ER Flaps 5 will normally get you out of 99\% of major airports runways at MTOW and under normal conditions. However when runway available is limited, flaps 15 or flaps 20 may be the result the computer/ACARS gives to the crew.

What flaps do you land on when taking off?

The “Standard” approach/Landing is Flap 1, Flap 5, Gear Down Flap 20, Flap 30. While specifically identified as a Takeoff Flap setting, the FCTM also refers to Flap 15 as suitable when manoeuvring prior to approach.