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Topic: Chord (aircraft)

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Aspect ratio

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	Aerofoils and wings
		The magnitude of the pressure differential and the consequent momentum applied to the airflow is generally dependent on the speed of the aircraft, the angle of attack and the physical characteristics of the wing.
		Aircraft incorporating washout tend to not drop a wing during an unaccelerated stall instead there is a tendency to just 'mush' down sedately then drop the nose and regain flying speed.
		Parasite drag is all the air resistance to a light aircraft in flight which is not considered as 'induced' and consists solely of pressure drag and skin friction drag; the latter is due to viscous flow and has been covered in the boundary layer air flow section above.
	www.auf.asn.au /groundschool/umodule4.html (11264 words)

	Chord
		When a chord progression resolves to a III or IV chord, it is called a Tonic Substitution, because the stable III or VI chord is being used as a substitute for the expected I chord.
		The five down a perfect fifth to the I chord and the VII chord up a minor second to the I chord, due to the expected resolution of the tritone, or the highly unstable diminished fifth which is present in a diatonic VII chord.
		The dominant seventh chord is useful to composers because of the fact that it is a major chord with a very strong sound, that also includes a tritone between the third and seventh of the chord.
	www.fastload.org /ch/Chord.html (2280 words)

	Chord
		Chords are also said to have a function in their diatonic scale, which relates to the expected resolution of each chord within a key.
		When a chord progression resolves to a III or IV chord, it is called a Tonic Substitution, because the stable III or VI chord is being used as a substitute for the expected I chord.
		The dominant seventh chord is useful to composers because of the fact that it is a major chord with a very strong sound, that also includes a tritone between the third and seventh of the chord.
	www.ebroadcast.com.au /lookup/encyclopedia/ch/Chord.html (2241 words)

	Aerospace engineering Encyclopedia (Site not responding. Last check: )
		The definition considered the Earth's atmosphere and the outer space as a single realm, thereby encompassing both aircraft (aero) and spacecraft (space) under a newly coined word aerospace.
		As aircraft flight control systems are becoming increasingly complex, they can be studied as a separate module.
		Aircraft structures - design of the physical configuration of the craft to withstand the forces encountered during flight.
	www.hallencyclopedia.com /topic/Aerospace_engineering.html (1739 words)

	Flying Sites - R/C Aero Portal - Newcomers - AIRCRAFT TERMINOLOGY
		The fuselage is the body part of the aircraft which holds the passengers, cargo, or in the case of an R/C aircraft, the radio system.
		The wing of the aircraft is the large horizontal surface which produces the lift and allows the craft to fly.
		The Stabiliser is the fixed horizontal surface at the rear of an aircraft.
	www.flyingsites.co.uk /newcomers/intros/aircraftterms.htm (1041 words)

	Chord (aircraft) - Wikipedia, the free encyclopedia
		Thus, the SMC is the chord of a rectangular wing with the same area and span as those of the given wing.
		Physically, MAC is the chord of a rectangular wing, which has the same area, full aerodynamic force and position of the center of pressure at a given angle of attack as the given wing has.
		In particular, the position of center of mass (CoM) of an aircraft is usually measured relative to the MAC, as the percentage of the distance from the leading edge of MAC to CoM with respect to MAC itself.
	en.wikipedia.org /wiki/Chord_(aircraft) (429 words)

	Chord - Wikipedia, the free encyclopedia
		Chord (aviation), the distance between the front and back of a wing, measured in the direction of the normal airflow.
		The term chord was selected due to the curved nature of the wing's surface.
		Mouse chording or a chorded keyboard, where multiple buttons are held down simultaneously to produce a specific action
	en.wikipedia.org /wiki/Chord (179 words)

	Modular drainmast for aircraft - Patent 5290996
		This invention pertains to a drain apparatus, particularly a drainmast for aircraft, and particularly to a modular drainmast including a drain tube removably enclosed in a fairing that is removably attachable to an aircraft.
		A drainmast is used to eject waste water from an aircraft waste system during flight without impingement of the ejected fluid further aft on the body of the aircraft, and to drain the waste system when on the ground.
		When the aircraft is on the ground, and the thermoswitch 124 is closed, 28 VDC power is applied to the drain tube heater resistances 63, 64, and 65 through power control relay 66 contacts 67 and 68.
	www.freepatentsonline.com /5290996.html (4657 words)

	Wing - Biocrawler (Site not responding. Last check: )
		Chord: distance from wing leading edge to wing trailing edge, usually measured parallel to the long axis of the fuselage
		As the aircraft rolls, the lower wing generates more lift than the upper, rolling the aircraft back into the level position.
		The amount of lift produced by a wing increases with the angle of attack (the angle between the onset flow and the chord line) but this relationship ends once the stall angle is reached.
	www.biocrawler.com /encyclopedia/Wing (868 words)

	Vortelator Kits - Home Built Aircraft (Site not responding. Last check: )
		Aircraft Development has developed a vortelator propeller kit that is capable of INCREASING YOUR BOMEBUILT AIRCRAFT SPEED BY 2 TO 4 MPH AND YOUR RPM BY 20 TO 50 RPM.
		At the 40% chord position the lift strut is 2.01" thick, and at the 80% chord position the lift strut is 1.18" thick.
		However, Aircraft Development believes a more important option is that the pilot can throttle back to achieve the same cruising RPM, thus the same air speed, that was being flown prior to the vortelator kit being installed on the propeller.
	www.vortelator.com /Home_Built_Aircraft.html (722 words)

	FM 1-514 Chptr 1 - Principles of Helicopter Flight
		Chord is the distance, or imaginary line, between the leading and the trailing edge of an airfoil.
		The angle of attack is the angle between the airfoil chord and the direction of relative wind.
		The aerodynamic center of an airfoil is the point along the chord line about which the airfoil tends to rotate when the center of pressure moves forward or backward between the leading and trailing edges.
	www.cavalrypilot.com /fm1-514/Ch1.htm (2596 words)

	pcs, roy, chord, the residents, country music, repetition, haydn, las ketchup, sugababes, rob dougan (Site not responding. Last check: )
		Root the fundamental pitch back on which a chord is based, from which the chord takes its name, and to which the other tones of the chord are referred to intervallically the third, seventh, and so on, regardless of their actual intervallic relationship in an actual keyboard voicing.
		Strictly, a chord is the basic unit of harmony, regarded abstractly as having a given root and specifying some other tones at certain intervals from the root, without regard to the actual voicing of the notes on the piano see voicing and scale.
		Turnaround a sequence of chords, or the portion of a tune that they occupy, that forms a cadence at the end of a section of a tune, definitively establishes the tonic key and leads back to the opening chord of the next section, or to the top.
	royfsmith.info /pcspy.html (1505 words)

	WEIGHT AND BALANCE CALCULATIONS FOR PHANTOM X-1 AND X-1E
		This is the chord length of the wing and is typically 64” for the Phantom X-1 and X-1E.
		Next have the pilot sit in the aircraft and measure the weight of the aircraft at the nose gear and each of the main gear just as you had before.
		The aircraft weight and balance should be calculated every flight to ensure that it is in the proper location.
	www.phantomaeronautics.com /wandb.htm (853 words)

	Model Aircraft Glossary
		Model scale aircraft may have dummy external bracing to replicate the original even though the wings are actually strong enough not to need it.
		A method of flying a model aircraft by means of two thin wires connecting the model to a control handle held by the pilot.
		Parts of an aircraft that are activated by the pilot or servos (in the case of a radio-controlled model) to change the airflow around the surfaces of the aircraft.
	www.glue-it.com /aircraft/general-information/glossary/c_summ.htm (1336 words)

	Vought-Sikorsky
		Zimmerman imbedded the cockpit in the leading edge of the wing with the intention that the pilot would fly the aircraft while lying prone to reduce drag and maximize the effect of the induced airflow from the propeller thrust.
		hile the unusual shape of the aircraft attracted considerable attention in the local community, the innovative nature of the technology kept it out of the media, and security was heavy around the aircraft.
		The internal structure of the aircraft rendered it unsuitable for disassembly and the aircraft had to travel by barge from Connecticut to Virginia.
	www.nasm.si.edu /research/aero/aircraft/pancake.htm (1833 words)

	Hobbico Glossary of Terms
		The area of a tapered wing is the wingspan multiplied by the average chord.
		An imaginary point on the chord of an airfoil where the total of all aerodynamic forces are assumed to act.
		The real aircraft with tailskids had to be maneuvered on the ground by ground crews, who put the tail on a small cart and towed the airplane where they wanted it.
	www.hobbico.com /glossary.html (6319 words)

	Geometry Definitions
		The Aspect Ratio of a wing is defined to be the square of the span divided by the wing area and is given the symbol AR.
		For a rectangular wing, this reduces to the ratio of the span to the chord length as shown at the upper right of the figure.
		There is a component of the drag of an aircraft called induced drag which depends inversely on the aspect ratio.
	www.lerc.nasa.gov /WWW/K-12/airplane/geom.html (954 words)

	L-29 Delphin, N120AW
		The aircraft is a cantilever mid-wing monoplane with a single main spar at 40% chord.
		The aircraft has dual control by means of the control sticks and push-pull rods.
		The landing gear is of rigid structure enabling operations from concrete runways as well as grass of sand fields.
	www.aerostarworld.com /1966l29.htm (278 words)

	Home Cinema Choice Review : Chord SPM2000B power amplifier
		Chord's 'Dynamic Coupling' claims to be totally free of transient distortion.
		On the Chord you could swear they were coming from the side of the room.
		The Chord SPM2000 is the sovereign of amplifiers.
	www.homecinemachoice.com /reviews/hccreviews/PowerAmps/Chord/ChordSPM2000B.php (916 words)

	Geometry Definitions
		The Aspect Ratio of a wing is defined to be the square of the span divided by the wing area and is given the symbol AR.
		For a rectangular wing, this reduces to the ratio of the span to the chord length as shown at the upper right of the figure.
		There is a component of the drag of an aircraft called induced drag which depends inversely on the aspect ratio.
	www.grc.nasa.gov /WWW/K-12/airplane/geom.html (954 words)

	Wingspan - OrbiterWiki
		The wingspan of an aircraft is always measured in a straight line, independently of wing shape or sweep.
		Since the amount of lift that a wing generates is proportional to the area of the wing, planes with short wings must correspondingly have a longer chord.
		An aircraft's ratio of its wingspan to chord, or more formally, the ratio of the wingspan squared to the area, is therefore very important in determining its characteristics, and aerospace engineers call this value the aspect ratio of a wing.
	www.orbiterwiki.org /index.php?title=Wingspan&printable=yes (114 words)

	Trainer Design
		For instance, a wing with a chord of 1 meter at a airspeed of 1 m/sec
		Where V is the airspeed in m/sec and L the wing chord in meters.
		Re increases as the airspeed, the air density and the wing chord increases.
	sky.prohosting.com /air2/design.htm (1428 words)

	McMullan Aircraft Design (Site not responding. Last check: )
		For a rectangular wing with a constant chord divide the wingspan by the wing chord.
		If a wing is 36 feet long and the average chord is 6 feet, you would divide the wingspan- 36 - by the average chord - 6 - giving you an aspect ratio of 6.
		The chord of my flap is 13.75 inches which is about 25% of the root chord of my wing and about 30%; of the chord where the flap ends.
	home.earthlink.net /~jmcmull36/McAir/plbrn2.htm (807 words)

	MILAVIA - Aircraft - Dassault-Brequet Mirage III
		One of the main requirements of the French Air Force was an aircraft capable to reach Mach 2 in level flight, the magic number for the epoch.
		The new aircraft received one SNECMA Atar 101G afterburning turbojet, with 4.500Kg of thrust and a new wing, based on the “area ruling”, a revolution at that time.
		The wing was redesigned and the aircraft fitted with one SNECMA Atar 9B with 6.000 Kg thrust and the SEPR 841 liquid-fuel rocket motor with 1.689Kg of auxiliary thrust.
	www.milavia.net /aircraft/mirageiii/mirageiii.htm (1050 words)

	Aircraft Accidents and Incidents - YANKEETOWN, FLORIDA 34498 Saturday, June 5, 1999 2:30 PM EDT
		The failure of maintenance personnel to balance check the ruddervators after painting the airplane and unclear information contained in the compliance section of AD 94-20-04 resulting in the failure of maintenance personnel to balance check the out-of-balance ruddervators and subsequent in-flight flutter and structural damage.
		The properly installed propeller was out of specification for chord width on both blades and for thickness for Blade No. 2.
		The aircraft's airspeed indicator was indicating 3-5 mph higher than the test unit when tested between 160 and 170 mph.
	www.aircraftone.com /aircraft/accidents/20001212X19072.asp (513 words)

	Futaba® Glossary of Terms
		Condition hold is used by an aircraft pilot to keep the aircraft idling safely on the ground while adjustments are made to a condition which requires full throttle, retracts up, smoke on, or other equipment combinations which the modeler wants to adjust but not activate on the ground.
		This is not recommended for aircraft use while in flight due to the requirement to use YAW (rudder) command to turn the model.
		Combines rudder, elevator and aileron movement to cause the aircraft to snap or spin on the flip of a switch.
	www.futaba-rc.com /glossary.html (7704 words)

	chord - OneLook Dictionary Search
		Chord (in circle) : A Glossary of Mathematical Terms [home, info]
		Phrases that include chord: seventh chord, ninth chord, altered chord, major chord, minor chord, more...
		Words similar to chord: harmonize, chorded, chording, more...
	www.onelook.com /?w=chord&ls=a (376 words)

	Airfield Models - Calculating the Aspect Ratio of a Wing or Flying Surface
		The Aspect Ratio is the ratio of wingspan to average wing chord.
		Average wing chord for a tapered wing is the root chord plus the tip chord divided by two.
		For a constant chord wing, the average chord is the chord anywhere along the wing panel.
	www.airfieldmodels.com /information_source/math_and_science_of_model_aircraft/formulas/aspect_ratio.htm (275 words)

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