flap

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flap

1. Aviation a movable surface fixed to the trailing edge of an aircraft wing that increases lift during takeoff and drag during landing
2. Surgery a piece of tissue partially connected to the body, either following an amputation or to be used as a graft

flap

[flap]
(aerospace engineering)
Any control surface, such as a speed brake, dive brake, or dive-recovery brake, used primarily to increase the lift or drag on an airplane, or to aid in recovery from a dive.
Any rudder attached to a rocket and acting either in the air or within the jet stream.

flap

flap
i. Auxiliary controls built into the wings and used to increase the camber. Flaps may be on the leading or the trailing edges. Trailing edge flaps reduce the stalling angle, whereas leading edge flaps increase the stalling angle when referred to the chord line of the original nonflapped airfoil. Flaps permit aircraft to fly at a lower speed, permitting better control on takeoff and a lower approach speed for landing. Flaps also increase drag, permitting aircraft to descend at a steeper angle. There are various kinds of flaps, such as splits, fowlers, zaps, and slotted.
ii. Short for cowl flaps. See cowl flap.
iii. The up-and-down movement of the tip of a helicopter rotor blade. See flapping.

FLAP

(1)
A symbolic mathematics package for IBM 360.

["FLAP Programmer's Manual", A.H. Morris Jr., TR-2558 (1971) US Naval Weapons Lab].

[Sammet 1969, p. 506].

flap

(storage, jargon)
To unload a DECtape (so it goes flap, flap, flap). Old-time hackers at MIT tell of the days when the disk was device 0 and microtapes were 1, 2, etc. and attempting to flap device 0 would instead start a motor banging inside a cabinet near the disk.

The term is used, by extension, for unloading any magnetic tape. See also macrotape. Modern cartridge tapes no longer actually flap, but the usage has remained.

The term could well be re-applied to DEC's TK50 cartridge tape drive, a spectacularly misengineered contraption which makes a loud flapping sound, almost like an old reel-type lawnmower, in one of its many tape-eating failure modes.

flap

(networking)

FLAP

The communications protocol used by AOL Instant Messenger (AIM). FLAP runs over TCP/IP and provides the header format for transmitting IM commands and data. It includes the SNAC data type, which is the primary data structure transmitted between clients and servers. See OSCAR.
References in periodicals archive ?
Ashley, in 1962, was the first to describe the full thickness mucoperiosteal flap for closure of palatal fistula20.
In the 3rd group patients "Osteon" was applied on a bone wound, outer cortex was applied with "Colla Guide" resorbable membrane to be subsequently covered with mucoperiosteal flap fixed by vicril 3-0 interrupted suture (Ethicon, Jonhson & Johnson, USA).
Raising a mucoperiosteal flap is accepted to cause trauma to the periosteum and the underlying bone, but the clinical significance of this in mandibular third molar surgery is debated.
The mucoperichondrial and mucoperiosteal flaps were reposited and the incision was closed using 3'0 cutting is used.
19 Therefore, at 12 weeks after extraction, the alveolar bone on the experimental side was corticotomized as follows: the gingival mucoperiosteal flaps were raised to expose cortical bone on both the buccal and the lingual sides of the canine (Fig 1 and 2).
Regional accelerated phenom- enon in the mandible following mucoperiosteal flap surgery.
Full thickness mucoperiosteal flap was reflected and the ankylotic mass was exposed.
The anterior face of the maxilla is exposed by raising a mucoperiosteal flap up to the nasal floor.
After a healing period of 3 months (Figure 4), crestal incisions were made in the maxillary and mandibular arches and a mucoperiosteal flap was elevated to expose the cover screws.
The quality of the root end filling was confirmed by taking a periapical radiograph before suturing of the mucoperiosteal flap.
Intraoperatively, following rising mucoperiosteal flap, the stability of bone graft was confirmed.
A crevicular incision was given and a full thickness mucoperiosteal flap was elevated on the facial and palatal aspects (Figure 2 and 3).