Droop
To droop means to hang down, to sag, particularly if limp. Droop may refer to:
Technical usage
People
See also
Light-emitting diode
A light-emitting diode (LED) is a two-lead semiconductor light source. It is a p–n junction diode, which emits light when activated. When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence, and the color of the light (corresponding to the energy of the photon) is determined by the energy band gap of the semiconductor.
An LED is often small in area (less than 1 mm2) and integrated optical components may be used to shape its radiation pattern.
Appearing as practical electronic components in 1962, the earliest LEDs emitted low-intensity infrared light. Infrared LEDs are still frequently used as transmitting elements in remote-control circuits, such as those in remote controls for a wide variety of consumer electronics. The first visible-light LEDs were also of low intensity, and limited to red. Modern LEDs are available across the visible, ultraviolet, and infrared wavelengths, with very high brightness.
Droop (aeronautics)
A droop or droop nose is a type of high-lift device found on the wings of some aircraft. Droops are similar to leading-edge slats, but with the difference that the entire leading edge section rotates downwards, whereas a slat is a panel that moves away from a wing leading edge when it is deployed.
Location
Droops are a type of leading edge device, mounted as they are on the rounded front part of a wing. The Airbus A380 has a droop 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 droops on the outboard of each wing and a Krueger flap on the section closest to the fuselage.
Use and effect
Droops function with other high-lift devices on an aircraft to increase the camber of the wing and reduce the stalling speed. On the Airbus A380, the first stage of lift device selection deploys the droops (called droop noses by Airbus) and leading-edge slats located further out on the wing; with the flaps starting to extend when the second stage is selected. The droops on the A380 may be deployed to a position 22 or 25 degrees lower than their stowed position. Another function of the droops on the A380 is to change the stall characteristics of the wing. The A380's designers found that the airflow between the engines was separating from the wing surface prior to the airflow between the engine and the fuselage, an undesirable characteristic. Adding a droop between the engine and the fuselage fixed the problem; whereas using a leading-edge slat would not have done so because of the gap (or slot) created between a slat and the wing when a slat is deployed.
Podcasts:
Droop
ALBUMS
- Loye Loye released: 1994
Droop Capone
ALBUMS
- Mad Ziontist released: 2013
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Therapy
by: Therapy?I'm trying to walk up the stairs
My hands are snatchin' at the slivers of light
I'm stickin' to the steps
Each one a release
From the place below
I'm on a mission
On the hunt for clean
Clear vapour skies
'Cos I'm choking on my own
I need some air
The dark skies behind me
Begging you to scrape off, your disco paint
It's open to the night
And I'm sick as a hospital
And empty factories
You look so tiny, so very unimportant
I'm nearly there, and everything feels fine
Don't wanna look behind me
Don't wanna look beneath me
Every movement
Every vibration
Every movement
Every vibration
High above piss city
Watch the pigs-ear people
All dead in their drows
Some suffer in silence
Someone sparks
Some gorge sucking on silicone
I've got the urge to jump
Watch life whizz by
Fast foward flash
But hold on boy
I feel... alive
Don't wanna look behind me
Don't wanna look beneath me
Every movement
Every vibration
Every movement
Every vibration
Don't wanna look behind me
Don't wanna look beneath me
Every movement
Every vibration
Every movement
Every vibration
Don't wanna look behind me
Don't wanna look beneath me
Every movement
Every vibration
Every movement
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