slot

slot

¹

1. an air passage in an aerofoil to direct air from the lower to the upper surface, esp the gap formed behind a slat

2. a vertical opening between the leech of a foresail and a mast or the luff of another sail through which air spills from one against the other to impart forward motion

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slot

²

the trail of an animal, esp a deer

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

slot

[slät]

(aerospace engineering)

An air gap between a wing and the length of a slat or certain other auxiliary airfoils, the gap providing space for airflow or room for the auxiliary airfoil to be depressed in such a manner as to make for smooth air passage on the surface.

Any of certain narrow apertures made through a wing to improve aerodynamic characteristics.

(computer science)

A punched-out area of a hand-sorted card to connect two or more guide holes; slots can be extended to the outside edge with notches.

(design engineering)

A narrow, vertical opening.

(electricity)

One of the conductor-holding grooves in the face of the rotor or stator of an electric rotating machine.

(mining engineering)

To hole; to undercut or channel.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

slot

Air from the lower surface of the wing passes through it on to the upper surface of the aileron.

i. Fixed openings near the leading edge of the wing. At higher angles of attack, air from below the wing is guided through the slots and discharged over the upper surface, tangential to the wing surface, thereby re-energizing the boundary layer allowing a higher critical angle of attack. Slots are located ahead of ailerons and thus help maintain aileron control at lower speeds and at high angles of attack.
ii. The gap between the wing and the hinged trailing-edge surface (flap, aileron) through which air flows attached across the movable upper surface.
iii. A block of time allocated to an airport user to perform an aircraft operation (takeoff and landing) or for using a specific facility.
iv. The physical aperture of a slot aerial. See slot aerial.

An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

slot

(1) A receptacle for a printed circuit board. Synonymous with "socket." See expansion card and plugs and sockets.

(2) A receptacle for inserting and removing a disk or tape cartridge. Removable storage was popular in the 1990s. See removable drive.

(3) In communications, a narrow band of frequencies. See time slot.

(4) Reserved space for temporary or permanent storage of instructions, data or codes. See buffer.

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