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Topic: Flap (aircraft)

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	Flap - Wikipedia, the free encyclopedia
		A flap (aircraft) is a hinged surface on the trailing edge of an airplane wing.
		In phonetics and phonology, a flap consonant is a sound produced by brief contact between the tongue and the roof of the mouth.
		In the phonology of English, flapping is a process by which a /t/ phoneme before an unstressed vowel is pronounced as a flap consonant.
	en.wikipedia.org /wiki/Flap (382 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		The flaps or slats may cover a considerable portion of the aircraft span and are in effect two dimensional flow devices as they create flow conditions that vary little in spanwise direction and effect a part of the wing span of about the same length as the span of the flap.
		On demand the delta flaps are deployed at a position that is a function of the angle of attack of the wing and the aerodynamic state of the airplane.
		By the air being channeled between the flap and the wing, the air is compressed between the lower surface of the flap and the upper surface of the wing.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=99/48755.990930&ELEMENT_SET=DECL (3861 words)

	Encyclopedia: Flap (aircraft)
		Flaps are hinged surfaces on the trailing edge of an airplane wing which, when deployed, increase the lift (and drag) of a wing by changing the camber of the airfoil.
		Blown flaps are an aerodynamic device used on the wings of aircraft to improve low-speed lift and take-off characteristics.
		Even huge flaps could not offset this to any large degree, and as a result many aircraft landed at fairly high speeds, and were noted for accidents as a result.
	www.nationmaster.com /encyclopedia/Flap-%28aircraft%29 (628 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		flaps and other high-lift devices on the trailing edge of a wing; and provides an overall aircraft control system which is simpler in construction and requires fewer components, is less expensive, reduces maintenance requirements, reduces weight, and provides the aircraft with lower takeoff and landing speed capabilities, with the avantages attendant therewith.
		During flap deployment, the lower auxiliary flap panel is disengaged from the upper aileron panel, and operated to move with the main wing flaps to form a full-span flap.
		With the auxiliary flap panel 28 not deployed in the flap mode, the auxiliary flap's control cable 42 is allowed to unload, and push rod 48 will engage transfer bell crank 46 to move a second push rod 50, which in turn moves the auxiliary flap panel up in concert with the aileron panel 30.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=99/30967.990624&ELEMENT_SET=DECL (7947 words)

	Sensing Aircraft Effects by Flap Hinge Moment Measurement (Site not responding. Last check: 2007-11-06)
		The steady-state hinge moment became nonlinear when flow separation occurred over the flap and was most affected when the simulation ice accretion was located furthest aft on the upper surface.
		The fluctuation of the flap hinge moment was measured and characterized by a RMS parameter that exhibited a maximum value at or near maximum lift.
		As opposed to the steady-state value, the change in the RMS hinge moment was observed during the linear phase of the lift curve several degrees before stall.
	www.ae.uiuc.edu /icing/papers/00/paper3.html (177 words)

	The S-TEC Approach Newsletter July 1997
		Flap compensators are used to drive the pitch servo, and in some cases the trim servo, in response to flap movement.
		This compensates for the tendency of the aircraft to "balloon" or "settle".
		In general, flap compensators employ either a single or dual potentiometer, an actuator arm, a cable for attaching to the flap actuator, and a retract spring.
	www.s-tec.com /s-tec/newsletters/appr797bench.html (849 words)

	High lift out-of-contour flap for aircraft wing - Patent 5551651
		The reduction in the lift is evidenced as a decrease in the additional lift due to the flap as the angle of attack is increased; for instance, for constant flap deflection, or as a so-called "roll-off" in the flap lift increment with an increasing flap deflection, such as at a constant angle of attack.
		The flap 14 is shown in the stowed position in the airfoil 12, which it assumes during normal cruise configuration for the aircraft, and is adapted to be deployed by being deflected or tilted downwardly into a high lift augmenting orientation during take-off and landing of the aircraft.
		The foregoing reduction in the lift is experienced as a decrease in the additional lift due to the flap 14 as the angle of attack of the latter is increased (for a constant flap deflection), as represented in FIG.
	www.freepatentsonline.com /5551651.html (3846 words)

	Aircraft Configuration File
		At this speed, the flaps must be retracted to the next higher setting, not possible when flaps are up, thus 0 for flpset=0, but set to 190 IAS for flpset=1, i.e.
		The first entry is what the NAME of the flap setting is, the second is the one retreived from the aircraft configuration table as a reference, the actual value is in brackets.
		Here we want the flap text to be 1, and something is undefined in the configuration file, FS reports a flpset of 1, but 7 is defined and looked up, the intermediate (1) is missing.
	www.projectmagenta.com /resources/AircraftType.html (2566 words)

	Flying the STOL CH 701... a primer on flap operation
		Several owners and pilots of the STOL CH 701 aircraft have asked for details on the correct method of effecting a full or partial flap landing with the STOL CH 701.
		Because the aircraft is principally a STOL aircraft, it does have certain flight characteristics, which are particular to this design.
		Once flap is selected, the geometry of the aircraft alters and as a consequence, the pilot must modify the handling – albeit slightly.
	www.zenithair.com /kit-data/701-ms.html (1264 words)

	INSPECTION OF FLAP HINGES (Site not responding. Last check: 2007-11-06)
		To inspect your aircraft for this corrosion, lower the flaps, and inspect all exposed portions of hinges on the flap and wing for evidence of a blistered or scaly appearance.
		Each aircraft owner should make a personal inspection of their aircraft’s flap hinge’s for this corrosion.
		The SB refers to aircraft from coastal areas, but the aircraft I refer to in these photo’s were not from coastal areas and had been well maintained otherwise.
	www.donmaxwell.com /INSPECTION_FLAP_HINGES.HTM (480 words)

	Flap Positioning System, FPS-Plus+, You get an Automatic Flap Positioning System with Elevator Trim Compensation control
		This is repeatedly done for every notch of flaps that you crank in, all the way down to the runway.
		The reason I designed, built, and tested this device in my aircraft, is because when I lowered my flaps, I had to also crank in a good amount of elevator trim to keep the nose of my aircraft from diving.
		Most experimental aircraft companies strive to design their aircraft around the perfect design, but sometimes "we homebuilders", pack too many goodies in there and forget about the balance and the flight characteristics until the very end of the project.
	www.aircraftextras.com /FPS-Plus-Tech.htm (2400 words)

	Rotary actuator for leading edge flap of aircraft - Patent 4979700
		Because the flaps are typically elongated, a plurality of rotary geared actuator slices are therefore necessary to carry the loads incurred during maneuvering of the aircraft in order to reposition the flaps during such flight maneuvering.
		Further, while the present invention has been described with respect to the movable gear connected with the flap and the fixed gear connected with the wing, the present invention is applicable to the reverse situation, that is, with the movable gear connected with the wing and the fixed gear connected with the flap.
		Further, each actuator slice is mounted to a flap and a wing through a separate tie bar assembly using pin joints which permit axial motion and deflections of the actuator slices to conform to the bending profile of the wing.
	www.freepatentsonline.com /4979700.html (4931 words)

	Global Aircraft -- History of Aviation (Site not responding. Last check: 2007-11-06)
		Aviation is defined as the design, manufacture, use, or operation of aircraft - in which the term aircraft refers to any vehicle capable of flight.
		Aircraft can either be heavier-than-air or lighter-than-air, lighter-than-air craft including balloons and airships; and heavier-than-air craft including airplanes, autogiros, gliders, helicopters, and ornithopters.
		The aircraft held 1,200 gallons (4500 liters) of fuel in its 17 fuel tanks.
	www.globalaircraft.org /history_of_aviation.htm (1410 words)

	Lockheed C130J Transport Aircraft - Composite Flap (Site not responding. Last check: 2007-11-06)
		The flaps located in the propeller slipstream are subjected to an intensive acoustic field.
		Composite material, graphite fibre reinforced epoxy, is being employed due to its superior acoustic fatigue performance compared to conventional aluminium semi-monocoque construction, to satisfy a demanding service life requirement in excess of 30,000 flight hours.
		The coupling between the set of wing flap modes and the acoustic excitation was calculated from which the structural response was estimated.
	www.vipac.com.au /aero_def/Projects/comp_flap.htm (248 words)

	Step 30-33
		FLAP DEFLECTION - This is the angle the flap will be at at a given detent (left side is 'up' and right side is 'full down').
		New to 5.60 is the ability to make the 'flaps up' value a negative number, this is used by gliders and some supersonic aircraft.
		FLAP CHORD - 0.25 which on our wings (chord 4ft) means that the flaps are about a foot long.
	legoplane.freeservers.com /Firstplane/FirstPlane05.htm (1459 words)

	Aircraft Airfoils
		Usually the Fowler flaps are not only deflected but also moved rearwards (with a hinge point situated below the airfoil or a sophisticated track system as on the Cessna 152 and 172, etc.), which increases the wing area S by increasing the chord.
		The drawback of this flap is that at high speed the funnel is always consuming some energy so that the drag coefficient is slightly higher than for a conventional flap.
		The 'Junker' flap always, and the 'Fowler' flap when extended, provide a certain 'boundary layer' control, be cause they 'trim" this layer out by blowing accelerated air into it, thus allowing the airflow to adhere to the solid airfoil up to substantial deflections (30 to 45 degrees) without local stalling of the airflow.
	exp-aircraft.com /library/heintz/airfoils.html (3922 words)

	SimHQ.com - Air Combat Zone - Secondary Flight Controls - Flaps
		Two, with flaps down, the aircraft has more of a nose low pitch attitude and, consequently, the pilot has a better view over the nose.
		I have flown the aircraft with no flaps to accentuate the difference in pilot look angle (tadpole) and the "normal" picture of the gunsight position often seen as the "level flight" flight attitude.
		The importance of flaps in turn performance is their effect on the ability to produce extra G. All air combat maneuvering is a function of pointing the aircraft where you want it to go.
	www.simhq.com /_air/air_002c.html (1513 words)

	Flap (aircraft) - Encyclopedia, History, Geography and Biography
		Flap (aircraft) - Encyclopedia, History, Geography and Biography
		This page was last modified 01:50, 3 December 2005.
		This encyclopedia, history, geography and biography article about Flap (aircraft) contains research on
	www.arikah.net /encyclopedia/Flap_%28aircraft%29 (216 words)

	English language - Wikipedia, the free encyclopedia
		It is used by some aircraft manufacturers and other international businesses to write manuals and communicate.
		In all other dialects it is a separate phoneme, although it only occurs in syllable codas.
		The alveolar flap [ɾ] is an allophone of /t/ and /d/ in unstressed syllables in North American English and increasingly in Australian English.
	en.wikipedia.org /wiki/English_language (4226 words)

	What's new from Aviat Aircraft Inc. (Site not responding. Last check: 2007-11-06)
		The aircraft has the new, extended flaps, and high performance ailerons which are dynamically balanced, eliminating the need for spades and which increases the roll rate by 50 percent.
		The aircraft has a 1,000-mile range on full tanks, a 74” Sensenich fixed pitch propeller, a 750-lb useful load, equipped, and a speed range of 45 mph to 145 mph.
		The new larger flap is the same semi-fowler slotted flap that we have always used, but the extended flap area is increased along the span of the wing.
	www.aviataircraft.com /new/new.htm (3922 words)

	Van's Aircraft - Ordering - Accessories Catalog
		The FPS lets you stay focused on flying the aircraft safer with one touch control.
		Flap positions are pre-selected with one touch, then automatically retracted with one touch without the need for visual monitoring of flap positioning progress.
		Flaps return to full-up position in one touch and the circuit shuts off the flap motor automatically
	www.vansaircraft.com /cgi-bin/catalog.cgi?ident=1117073011-52-705&browse=airframe&product=fps (242 words)

	Avionics And Instrumentation
		This is a flap position gauge as used on several US fighters including the P-40 and P-47.
		PDI aircraft instrument was used in the B-17, B-24 and other WWII aircraft.
		It was used in the F-4 Phantom II and perhaps other aircraft as well.
	www.warbirdrelics.com /avionics_1.htm (1721 words)

	Aircraft 3-view - Amazing Aircraft Guide (Site not responding. Last check: 2007-11-06)
		Raytheon Aircraft Company will open a new parts facility for timely Beechcraft and Hawker parts service to its European customers.
		Graphics were masked and sprayed like the full-scale aircraft.
		the tech guys are armed with a 3-view and the aircraft specific model...
	amazingaircraftguide.com /aircraft-3-view.html (542 words)

	Accurate Flap Rotation(Aircraft Wing Flaps) - Topic Powered by Groupee Community
		To get accurate flap rotation, use the top toolbar button "Edit Using Object Coordinates".
		This allows the flaps to be rotated up or down while keeping their alignment with the wings of the aircraft.
		It's still possible that you will have to perform a few shifting operations to the flaps to get proper rotation.
	www.amabilis.com /eve/ubb.x/a/tpc/f/4716078974/m/8526078974 (83 words)

	Airliners.net Tech Ops: Zap Flap Aircraft
		I've heard that the Fairchild 22 had the Zap Flap Installed.Anyone with pics on Anet of this Zap Flap.
		I was suprised about 30 years ago when i had some wind tunnel time at San Jose State Univ. At high angles of attack, deploying the split flaps moved the leading edge stagnation point up to the leading edge - the airflow was splitting about 5% of the chord....
		Finally somebody in the aft cabin noticed the flaps were down a little - and the handle was up.
	www.airliners.net /discussions/tech_ops/read.main/114344 (347 words)

	Combat FS: Converted FS98 Aircraft Use Incorrect Flap Sounds
		If you use converted Microsoft Flight Simulator 98 aircraft in Microsoft Combat Flight Simulator or Microsoft Combat Flight Simulator 2, you may hear incorrect flap sounds when you raise or lower the flaps of the converted aircraft.
		This behavior can occur because Combat Flight Simulator is incompatible with Flight Simulator 98 aircraft flap sounds that use three cross-faded files.
		If Flight Simulator 98 aircraft flap sounds use three cross-faded files, Combat Flight Simulator or Combat Flight Simulator 2 plays the default flap sounds for the Messerschmitt Bf 109E aircraft when you raise or lower the flaps of the converted aircraft.
	support.microsoft.com /support/kb/articles/q198/4/20.ASP (215 words)

	Welcome to Adobe GoLive 5 (Site not responding. Last check: 2007-11-06)
		Flaps for oil check door, oil fill door, and air intake on nose can be added to insulated engine covers as an option.
		Kennon's Insulated Engine Covers are built for specific year, make and model of aircraft.
		Kennon Propellor Covers are insulated with a waterproof polyester outer shell.
	www.nationalguild.com /KennonAircraftCovers/Engine_Covers_Including_Cowl_Plugs.html (202 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		Take off run is 1200m, and the plane climb easily with some rudder at 2000 fpm/150 with 10° flap.
		Then I shot down inner engine, always port side (2) and full rudder was needed to keep it straight: anyway it was capable to climb at 500 fpm/150 with 5° flap.
		Landing with full flap is difficult on a 3° glide because of flap drag, then in case of a double engine shot down follow a steeper glide (5°) with less flap (20°).
	indigo.ie /~pwafer/tests/pj-tqa.tst (463 words)

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