What are the droops on a Trident aircraft?
What are the droops on a Trident aircraft?
A droop or droop nose is a type of high-lift device found on the wings of some aircraft. They are very similar to leading-edge slats, but with difference that the entire leading edge section rotates downwards.
How do aircraft droops work?
Droops are deployed on the leading edge of a wing of an aircraft, and they work by changing the camber of the wing.
What are A380 wings made from?
The A380 is the first commercial airliner to have a central wing box made of carbon–fibre reinforced plastic. It is also the first to have a smoothly contoured wing cross–section.
How do Krueger flaps work?
Krueger flaps are mounted on the bottom surface of the wing and are hinged at their leading edges. Actuators extend the flap down and forwards from the under surface of the wing thus increasing the wing camber which, in turn, increases lift.
Do slats increase drag?
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. In addition, the large aft-projected area of the flap increases the drag of the aircraft. This helps the airplane slow down for landing.
Do fighter jets have slats?
Modern fighter jets use coupled slats and flaps to improve maneuverability, to enable better turning that is vital to success in air combat, under the control of the DFCS (Digital Flight Control System).
What aircraft have Krueger flaps?
Early generation jet airliners such as the B707 Series utilized Krueger flaps as their sole leading edge high lift devices. Current generation aircraft use either all slats or a combination of slats and Krueger flaps. Examples of the latter configuration include the B747 and the BOEING 737-700.
Where are the droop flaps on an A380?
The Airbus A380 has droop flaps between the fuselage and each inboard engine, at the leading edge of the thickest part of each wing. Early variants of the Hawker Siddeley Trident had two droop flaps on the outboard of each wing and a Krueger flap on the section closest to the fuselage.
How does lift device selection work on the Airbus A380?
On the Airbus A380, the first stage of lift device selection deploys the droop flaps (called droop noses by Airbus) and leading-edge slats located further out on the wing; with the main flaps starting to extend when the second stage is selected.
What are the controls of the A380?
A380 Flight Controls: High Lift system Flaps inner, mid and outer flap droop nose Slats Flaps Lever SFCC 2 SFCC Wing Tip Brake Wing Tip Brake Motor Control Electronics Slat PCU Flap PCU T-gearbox Asymmetry Position Pick-off unit A380 High Lift movables and system mechanical components (similar concept as A340 Long Range)
How many drooped nose devices are there in one wing?
2 Drooped Nose Devices per wing (INBD wing) to improve aerodynamic performance (lift to drag ratio) 6 Leading Edge Slats per wing (MIDBD & OUTBD wing) SLATS : supported by curved tracks ; driven by rotary actuators via rack & pinion DROOPED NOSE DEVICES : Supported by hinged arms ; driven by rotary actuators via link & lever
