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Topic: Tailplane

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	Tail unit with rotatable tailplane - Patent 5096143
		The tailplane 6 is fitted to the boom 4 by means of a spigot 7 rotatably mounted in a pair of bearings 8, 9 to allow the tailplane to be rotated about an axis 10 extending along the span of the tailplane to provide necessary aerodynamic control.
		Rotation of the tailplane 6 is effected by an actuator 11 acting upon a lever 12 fitted to the end of the spigot 7.
		As discussed above the position of the tailplane may be optimised for the speed of the aircraft, with the tailplane being moved from its horizontal to vertical position as the speed of the aircraft increases.
	www.freepatentsonline.com /5096143.html (1514 words)

	Tailplane - Wikipedia, the free encyclopedia
		A tailplane is a small lifting surface located behind the main lifting surfaces of a fixed-wing aircraft as well as other non-fixed wing aircraft such as helicopters and gyroplanes.
		However, not all fixed-wing aircraft have tailplanes, such as those configured with canards (where the "tail-plane" is located in front), flying-wing aircraft, where there is no tail, and v-tail aircraft where the rudder and tail-plane is combined to form two diagonal surfaces.
		A tailplane has a hinged flap called an elevator, which allows the pilot to control the amount of lift produced by the tailplane.
	en.wikipedia.org /wiki/Tailplane (357 words)

	T-tail - Wikipedia, the free encyclopedia
		In aircraft a T-tail is an arrangement of the tail control surfaces with the horizontal surfaces (tailplane and elevators) mounted to the top of the fin, rather than the more common location on the fuselage at the base of the fin.
		The tailplane surfaces are kept well out of the airflow behind the wing, giving smoother flow, more predictable design characteristics, and better pitch control.
		The fin must be made considerably stronger and stiffer to support the forces generated by the tailplane.
	en.wikipedia.org /wiki/T-tail (441 words)

	Canard
		A canard (French for duck) is a type of fixed wing aircraft in which the tailplane is ahead of the main lifting surfaces, rather than behind them as in conventional aircraft.
		The canard surface normally produces positive (upwards) lift whereas a conventional tailplane normally produces a downforce.
		Deploying flaps causes a large nose-down pitching moment, but in a conventional aeroplane this effect is considerably reduced by the increased downwash on the tailplane which produces a restoring nose-up pitching moment.
	www.ebroadcast.com.au /lookup/encyclopedia/ca/Canard.html (238 words)

	Tailplane (Site not responding. Last check: 2007-10-29)
		A 'tailplane' is a small lifting surface located behind the main lifting of a fixed-wing aircraft.
		tailplane provides a balancing force to maintain for different speeds and centre of gravity Because the tailplane is located some distance the centre of gravity even the small of lift it produces can generate a pitching moment at the centre of gravity.
		A tailplane has a hinged flap called elevator which allows the pilot to control the amount of lift by the tailplane.
	www.freeglossary.com /Tailplane (284 words)

	NationMaster - Encyclopedia: Canard
		In aeronautics, canard (French for duck) is a type of fixed-wing aircraft in which the tailplane is ahead of the main lifting surfaces, rather than behind them as in conventional aircraft.
		Tailplane and rudder of an Me 262 A tailplane is a small lifting surface located behind the main lifting surfaces of a fixed-wing aircraft as well as other non-fixedwing aircraft such as helocoperts and gyroplanes.
		The canard surface normally produces positive (upwards) lift which adds to the overall lift, whereas a conventional tailplane normally produces a downforce, partially cancelling the lift from the main wings.
	www.nationmaster.com /encyclopedia/Canard (1911 words)

	Tailplane (Site not responding. Last check: 2007-10-29)
		A 'tailplane' is a small lifting surface located behind the mainlifting surfaces of a fixed-wing aircraft.
		Without a tailplane there would be only onecombination of speed and centre of gravity position for which this requirement was met.
		Because the tailplane is located some distance fromthe centre of gravity, even the small amount of lift it produces can generate a large pitching moment at the centre ofgravity.
	www.therfcc.org /tailplane-9379.html (257 words)

	Ted Allison's Texan
		Ted's wanted the model to embody the full-size wing and tailplane aerofoil sections with the objective of simulating the characteristics of the full-size.
		Side plates, made from 6mm ply reach up to the tailplane mounting tubes (20 gauge, mild steel, 16mm diameter) with a stern post erected for subsequent construction of the fin.
		Each elevator servo is installed in the bottom of the tailplane half and exposed, although flush to the surface, to allow thorough pre-flight checking.
	www.largemodelassociation.com /ted_allison_texan.htm (2935 words)

	Control Surfaces
		Attach a loop of light string to the trailing edge of the tailplane at one of the corners near the fin cutout (use some adhesive tape), and use an accurate sensitive spring balance to lift the trailing edge until the tailplane is horizontal.
		Alternatively, the total weight may be measured by suspending the tailplane from a spring balance by means of the front bushed bracket (Item "A" in the diagram) which connects to the elevator drive arm when the tailplane is fitted to the glider.
		Stops for tailplane movement also are located at the base of the control stick under the seat pan.
	www.standardcirrus.org /ControlSurfaces.html (1164 words)

	Prepare to Design
		The size of the tailplane is going to have a direct impact on the model's pitch stability along with the tail moment arm (distance between the mean chords of the wing and tailplane).
		Actual tailplane area needs to be increased by 2 - 3% to make up for the area 'lost ' due to the angle but it is still less than the total area of a conventional fin and tailplane.
		It is important that the tailplane is not producing lift when the model is in stable flight because tailplane lift is high drag lift due to the poor section profile and the low aspect ratio of the tailpane.
	www.phoenixmp.com /articles/preptodesign.htm (2187 words)

	Tailplane
		Tailplane with one of the elevators being fitted for.
		It's not obvious but the main part of the tailplane has had a triangular piece of balsa added to it as 100mm (4") wide balsa sheet is not wide enough for...
		The Beechcraft Starship attempted to overcome this problem with a swing-wing canard surface which swept forwards to counteract the...
	www.logicjungle.com /wiki/Tailplane (234 words)

	F3D Pylon Racing: Landscape or Portrait?
		sually, the size of the vertical tailplane is based on previous experiences and the tailplane volume V. This value is defined as the product of tailplane area times the distance from its aerodynamic center to the center of gravity of the plane.
		After the area of the vertical tailplane has been defined, it is possible to select different aspect ratios AR for it, making the tail long and flat (low AR) or short and high (large AR).
		imilar to a wing, the drag of the vertical tailplane is composed of friction drag and induced drag.
	www.mh-aerotools.de /airfoils/f3d_vtail.htm (731 words)

	Tdata AD
		The actions specified by this AD are intended to prevent failure of the tailplane attachment brackets caused by stress corrosion cracking and failure of the engine mount, which could result in loss of the tail section and separation of the engine from the airplane respectively.
		The commenter states that replacement parts for the tailplane attachment brackets may not be available from the manufacturer within 90 days after the effective date of this AD.
		The commenter suggests that the repetitive inspections of the tailplane attachment brackets should be changed to every 150 fatigue hour or 6 months, whichever comes first, in order to ensure the airworthiness of these airplanes.
	www.tdatacorp.com /00-CE-64.HTM (3192 words)

	Dr Derek Bray, DAPS - E348 Aircraft Design Information
		It is desirable that the tailplane is set at such an angle of attack that it carries little or no load during the aircraft's design cruise speed.
		Since the tailplane is equally likely to carry an upload or download, it is usually of symmetrical rather than cambered section.
		Some aircraft have adjustable tailplanes or slab tailplanes, whereby the whole surface is adjusted for the purpose of flight trim.
	www.rmcs.cranfield.ac.uk /aeroxtra/e348perfslf1.htm (510 words)

	Alaskan Airlines Flight 261 - trim tabs amiss?
		Located on the horizontal wing at the rear of the plane (also known as the tailplane), these tabs are responsible for fine-tuning the pitch of the plane.
		In some instances, such as with the McDonnell Douglas-80 series, there is additional stability designed into the plane with the horizontal tailplane, acting like another wing producing lift but also serving another important function, which was to rigidly stabilize a plane from the rear.
		The control tabs located at the rear tailplane can exert a substantial force because of how far away they are located from the plane's centre of gravity.
	www.exn.ca /Templates/Story.asp?ID=2000020155 (890 words)

	T tail (Site not responding. Last check: 2007-10-29)
		In aircraft a T-tail is an arrangement of the tail controlsurfaces with the horizontal surfaces (tailplane and elevators) mounted to the top of the fin, rather than the more commonlocation on the fuselage at the base of the fin.
		The tailplane surfaces are kept well out of the airflow behind the wing, givingsmoother flow, more predictable design characteristics, and better pitch control.
		The Sud Aviation Caravelle is one example of an airliner with amid-fin mounted tailplane.
	www.therfcc.org /t-tail-110806.html (397 words)

	T-tail (Site not responding. Last check: 2007-10-29)
		In aircraft a T-tail is an arrangement of the tail surfaces with the horizontal surfaces (tailplane and elevators) mounted to the top of the fin rather than the more common location the fuselage at the base of the fin.
		The tailplane surfaces are kept well of the airflow behind the wing giving smoother flow more predictable design and better pitch control.
		The fin must be made considerably and stiffer to support the forces generated by the tailplane.
	www.freeglossary.com /T-tail (569 words)

	Canard (Site not responding. Last check: 2007-10-29)
		In aeronautics, canard (French for duck) is a type of fixed-wing aircraft in which the tailplane is ahead of the main lifting surface s, rather than behind them as in conventional aircraft.
		In the field of computing, it also acquired the meaning of "confused and mistaken belief" from its use by Tracy Kidder.
		Careful design of a canard aircraft can make it effectively "stall-proof" - the canard surface stall s first which tends to pitch the nose down and prevent the main wing from stalling.
	www.serebella.com /encyclopedia/article-Canard.html (789 words)

	IHS ESDU: Data Item 91009
		ESDU 91009 provides a method that is based on determining the effective (increased) aspect ratio of the tailplane due to the end plate effect of the fins.
		The data were correlated to within 5 per cent and apply to straight-tapered tailplanes of taper ratio between 1 and 0.4 (tip chord/centreline chord) and mid-chord sweep up to 45 degrees, for any fin planform, and are independent of fin vertical location on the tailplane.
		For swept tailplanes the correlation only applies when the fin chord extends well forward of the tailplane leading-edge (by at least 0.25 chord).
	www.esdu.com /graphics/dataitem/91009a.htm (264 words)

	Ripmax Sirius Electric
		The tailplane and elevator were pre-built and pre-covered, but the elevator was a bit warped (again, the iron was used, and all was well).
		I’m not going to elaborate on the instructions, other than to say that a piece of triangular stock should be glued between tailplane and fin, on each side, and obviously (the surrounding covering film should be cleared first).
		The blow-moulded fuselage does seem very tough indeed, the T-tail is there to get the tailplane and elevator out of the prop-wash, and the wing joiners haven’t pulled out of the wing (but I have been gentle with it).
	www.rc-soar.com /tech/sirius.htm (1121 words)

	Hints and Tips (Site not responding. Last check: 2007-10-29)
		I found firstly with the tailplane tab close-outs and subsequently the aileron closeouts (which are even more difficult than the tab ones because they are deeper) that it was difficult to get a knife in to remove the foam in order to expose the skin prior to the close-out layups.
		Rather than having ugly exposed holes in the tailplanes into which the pip-pins are housed (together with any water that might ingress there) a 1 in.
		I have noticed that when I take the tailplanes off - it doesn't matter from which side (so the pins ARE square!) the first side is easy, but the remaining one wants to pull the anti-servo/trim tab link rod with it - possibly bending the pin if you are not careful.
	ourworld.cs.com /mjktuck/hintsand.htm (2697 words)

	SAANZ
		The tailplane is now complete, as is the first elevator - the RH Elevator has a trim tab, therefore it takes longer to build.
		The Fin Rudder, tailplane and elevators can be easily removed in less than 10 minutes.
		The Bowden cable that actuates it passes along transparent plastic tubing through the tailplane and elevator.
	www.saa.org.nz /modules.php?set_albumName=proj_cooke&op=modload&name=gallery&file=index&include=view_album.php&page=2 (226 words)

	Icing Branch Documents (Site not responding. Last check: 2007-10-29)
		The effects of tailplane icing on aircraft dynamics and tailplane aerodynamics were investigated using NASA's modified DHC-6 Twin Otter icing research aircraft.
		This paper presents results from the quasi-steady state flight conditions and describes the range of flow fields at the horizontal tailplane, the aeroperformance effect of various ice shapes on tailplane lift and elevator hinge moment, and suggests three paths that can lead toward ice-contaminated tailplane stall.
		It was found that wing flap deflection was the most significant factor in driving the tailplane angle of attack toward atail stall.
	icebox-esn.grc.nasa.gov /docs/tm-1999-208902.html (251 words)

	Help - Cassutt Horizontal Tailplane Size - RC Groups
		The horizontal tailplane on this aircraft is very small (true to scale I think), and the previous owner stated that it was pitch sensitive (to much for him to handle - although he woudn't have had the nicities of exponential and end point adjustment
		I've been on an off all week, fly it as is, resize the tailplane, fly it as is, resize the tailplane,...
		Tailplane area is currently about 12%, fin area, although on the smallish size looks ok (a few spin tests from a great height will confirm this)
	www.rcgroups.com /forums/showthread.php?t=60818 (433 words)

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