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Topic: Empennage

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	Aeroelastic modelling of aircraft empennage buffet
		The challenges associated with the empennage buffet problem vary from prediction of the nonlinear separated vortical flows about complex configurations to the coupled interaction between the flow and the dynamic response of the tail structure.
		The multidisciplinary problem of tail buffeting is solved accurately in time using an unsteady vortex model for prediction of aerodynamic loads and coupled aeroelastic equations for the bending and torsional deflections of the tail which are resolved using the Galerkin method.
		A dynamic aeroelastic analysis of empennage buffet is performed for a generic delta-wing, twin vertical-tail configuration at high angles of attack.
	anziamj.austms.org.au /V45/CTAC2003/Levi/home.html (217 words)

	U.S. Patent: 5102067 - Integrated helicopter empennage structure - April 7, 1992
		The integrated empennage structure comprises a shroud integral with the tail boom, a shroud-fin integration shelf, an aft shroud closure, a vertical stabilizer, and a horizontal stabilizer intersecting the vertical stabilizer.
		The empennage structure 20 includes a shroud 22 integral with the tail boom 16, a shroud-fin integration shelf 24, an aft shroud closure 26, a vertical fin or stabilizer 28, and a horizontal fin or stabilizer 30 intersecting the vertical stabilizer 28.
		The integrated empennage structure 20 further comprises an aerodynamically configured and orientated horizontal stabilizer 30 that is optimized, in relation to a predetermined configuration and orientation of the vertical stabilizer 28, to provide negative vertical forces for dynamic pitch stability of the helicopter 10 in the forward flight regimes.
	www.everypatent.com /comp/pat5102067.html (7739 words)

	Interactions between Rotor and Horizontal Stabilizer
		Also, the empennage may be wholly or partially immersed inside the high total pressure of the rotor wake.
		Mello and Rand (Ref. 13) used a similar model, and showed that the predicted unsteady loads on the empennage were very sensitive to the rotor wake geometry.
		In addition to the high rotor downwash at the empennage, there are several possible constituent sources of unsteady loading that may be produced on a lifting surface located near a rotor or its wake.
	www.glue.umd.edu /~leishman/Aero/Stab/intro.html (845 words)

	The Story of Homebuilt
		Empennage was named after the tail structure of an airplane.
		She was trained to protect me, Empennage, and our home, but as soon as I let her know that you're a friend, she would love you to death.
		She didn't do as many tricks as Empennage (imagine a 95 pound Rottweiler doing a snap roll too close to a china closet!), but she was very well trained in the standard obedience skills, off leash control, and protection.
	www.homebuilt.com /homebuilt.html (1132 words)

	Empennage
		We had not complied with Leonard's empennage bracing change and cut the flying short when the fin showed signs of flutter on the leading edge in the absense of the parallel brace cable...
		Say your gusset is for a 3/4 inch tube then the next size smaller tube is 5/8 inches and that is what the gussets will be formed around by squeezing down in a vice with smooth jaws...
		We drew the Empennage parts full size on the building table.
	ourworld.cs.com /_ht_a/skiblinger/empennage.htm (830 words)

	The Frye RV7 : Empennage (Site not responding. Last check: 2007-10-18)
		The empennage is the first of the kits, and everyone starts there.
		The empennage is built in four different major sections.
		The empennage order went out the door on the 4th, and is slated (if the UPS tracking web site is telling the truth) to arrive on Wednesday, September 12.
	www.openweave.org /RV7/showlog.php?Empennage (887 words)

	Empennage - Wikipedia, the free encyclopedia
		"Empennage" and "tail" and "tail assembly" may be interchangeably used.
		Its main purpose is to give stability to the aircraft and control the flight dynamics: pitch, roll and yaw.
		On an airliner this would be everything behind the rear pressure bulkhead.
	en.wikipedia.org /wiki/Empennage (322 words)

	The Sailplane Class @ Penn State
		There are currently four separate teams working on an individual component of the aircraft; the fuselage, wings, empennage (horizontal and vertical tails), and control system.
		The empennage group was formed to design an effective horizontal tail (HT), vertical tail (VT), and tailboom connection to ensure structural stability and dynamic control of the aircraft.
		Once this is done and the designs for the wings, empennage, and fuselage progress, the team can begin determining what kind of control system will work best for the glider.
	www.psu.edu /dept/aerospace/sailplane/design.html (657 words)

	VAF Forums - Review - Synergy Air Quick-Start Empennage Workshop
		The bonus for me, and it was a HUGE bonus, was that at Thursday noon we bundled up my empennage and all five of us went to work on Peter's quick-build.
		He is driven by a great result, so tends to want to do things like riveting the rudder trailing edge himself, etc. For many builders, this is perfect, for others, you'll want to step in and insist that you get to take some risk.
		I should mention that my empennage is beautifully done and that there is no single skill that I did not experience myself during its building.
	www.vansairforce.com /community/showthread.php?t=5786 (1600 words)

	Boeing: RAH-66 Comanche With New Empennage Completes First Flight
		In addition to the new empennage, Prototype No. 1 flew its "full up" configuration, with lowered exhaust doors, alternate main rotor pylon, main rotor hub fairing and the Comanche fire control radar aerodummy.
		The new Comanche empennage design consists of vertical and horizontal stabilizers and new vertical endplates on the horizontal structure.
		The new tail structure, which was mounted atop the RAH-66 FANTAIL shrouded tail rotor earlier this month, is a reconfigurable unit that permits adjustments of tail components to validate and optimize a final tail design for production.
	www.boeing.com /news/releases/2000/news_release_001221n.htm (461 words)

	Rear Fuselage and Empennage Flow Investigation (Site not responding. Last check: 2007-10-18)
		Furthermore, research effort with respect to an improved understanding of the flow physics around fuselage / tail combinations remained limited, as investigations naturally concentrated on the wing and its interference with the fuselage.
		This has to be seen in the light of the fact that performance guarantees for future aircraft have to be granted earlier and with higher accuracy as compared to former developments.
		In order to cope with the current aeronautics industrial needs which for sure are different from what was relevant in the past, a new integrative approach is proposed, closing the gap between the current classical empennage design and the possible future unconventional empennage design.
	www.cimne.upc.es /remfi/default.asp?id=intro (214 words)

	Empennage
		These are a few pictures detailing the construction of the empennage section consisting of the horizontal and vertical stabilizer, rudder, elevators and electric trim tab.
		The empennage is the normal place to start construction as it is a small investment that gets you started.
		It exposes the builder to a variety of construction techniques and most pieces are relatively inexpensive, so the learning curve isn't to expensive should parts be destroyed.
	www3.telus.net /haywire/RV-9/empennage.htm (270 words)

	The Empennage
		Photo on the left is of the 2 boxes containing the empennage.
		The smaller of the 2 boxes arrived 2 days after the larger one due to an error in the address.
		The first assembly to get started was the Horizontal Stabilizer, followed in order by the vertical stabilizer, the rudder, the left elevator, the elevator trim tab and last but not least the right elevator.
	www.theairplanegarage.com /The_Empennage/the_empennage.htm (120 words)

	Stork Fokker AESP - Cessna Citation empennage
		But after being invited to bid on production of the empennage for the medium-size Sovereign model in the Citation business-jet range Stork Fokker has become a partner in the programme.
		Stork Fokker supported Cessna in designing the empennage (or complete tail unit), made the tooling and now manufactures the part which, after completion, is shipped to Cessna's facilities in Wichita-Kansas and mounted on to the aircraft at the final-assembly line.
		Outsourcing of the empennage has allowed Cessna to re-allocate internal resources, while the partnership with Stork Fokker has increased capacity that is not limited to the Sovereign model.
	www.stork.nl /fokkeraesp/page.html?ch=DEF&id=5803 (162 words)

	Icing Effects on a Full-Scale Business Jet Empennage
		The full-scale business jet empennage was tested in NASA Ames Research Center's 40- by 80-ft wind tunnel to obtain aeroperformance data for the clean (no-ice baseline) and ice-contaminated tail.
		The ice contamination consisted of nine variations of artificial ice shapes that included several LEWICE ice shapes, spoilers, sandpaper roughness, and a casting developed in an Icing Research Tunnel test.
		The full-scale data base is being analyzed and will be reported in fiscal year 2001 with comparisons to results from a previous test of a 25-percent-scale business jet empennage model.
	www.grc.nasa.gov /WWW/RT2000/5000/5840ratvasky2.html (449 words)

	A.Word.A.Day--Today's Word
		[From French empennage (feathers of an arrow), from empenner (to feather an arrow), from em- + penner, from penne (feather), from Latin penna (feather).]
		Some other words derived from the same root are panache, pen, pin, pinnacle, and pennant.
		"One cold, rainy afternoon on the roof of London's Heathrow airport, I came upon 20 men (and one woman) carefully noting the tail numbers -- the unique registration painted on the empennage of all commercial aircraft -- of each jet that took off and landed.
	www.wordsmith.org /words/empennage.html (201 words)

	Alexander Technical Center - RV Tail Kit Program (Site not responding. Last check: 2007-10-18)
		Some let their empennage kits sit in their garages for months...
		Some builders do jump in alone, but then end up having to redo parts of their empennage kits as their skills improve.
		All of a sudden that garage full of crates and boxes is transformed from a depressing albatross to a very doable project that will become the airplane of your dreams..
	www.buildtofly.com /dotnetnuke/RVTailKitProgram/tabid/52/Default.aspx (697 words)

	Aeronautics - Parts of an Airplane (EMPENNAGE) - Level 2
		Please let me remind all of you--this material is copyrighted.
		The empennage, commonly called the tail assembly (see figure 1-7), is the rear section of the body of the airplane.
		Its main purpose is to give stability to the aircraft.
	www.allstar.fiu.edu /aero/flight13.htm (297 words)

	Prop Jock: Yet Another RV-9 Builder's Site
		What follows is a log of the construction of an RV-9 empennage or tail.
		Most of the process seems to be pretty mindless with a few notable exceptions where you actually have to take a "raw" material like a piece of angle and build a part.
		Current plan is to complete all empennage parts up to but not including riveting, then primer, then rivet.
	www.propjock.com /empennage.html (3598 words)

	RV-8 Widow's Guide (Site not responding. Last check: 2007-10-18)
		On the sly I ordered the kit, and that's when the real work began...no not building the plane, hiding the Empennage from Baron.
		You order the Kit a section at a time, starting with the Empennage (tail section) and finishing with....well the finishing kit.
		There is no way that I could explain the kit build airplane well enough so I will let Vans do the talking on their web site http://www.vansaircraft.com.
	www.rv-8.org (432 words)

	Eric’s Vans RV-7a Build Log (Site not responding. Last check: 2007-10-18)
		Empennage and Horizontal Stabilizer Eric on 30 Jan 2005
		Empennage and Horizontal Stabilizer Eric on 27 Jan 2005
		Empennage and Horizontal Stabilizer Eric on 25 Jan 2005
	www.rv7abuilder.com (3507 words)

	RV-7 Empennage Summary (Site not responding. Last check: 2007-10-18)
		I've installed a number of white wire shelves in various nooks in the garage.
		This one happens to be 20" wide and nicely holds the empennage skins.
		This only took 168 hours of work but that also includes a little over 26 hours of fiberglass work on the tips.
	adap.com /rv7/Empanage.htm (206 words)

	empennage
		The Empennage kit arrived in November of 1997 and was started in half of a double car garage.
		A move forced the project to be put on hold for close to a year.
		A shelf below for clecoes and some pen and pencil holders on the top.
	www.rv8.homestead.com /empennage.html (133 words)

	About the Mathematics and Technology seminar (Site not responding. Last check: 2007-10-18)
		As part of our effort to build bridges between Mathematics and the larger world, the Mathematical Sciences Research Institute is sponsoring a seminar where mathematicians can meet adventurers on the technological frontier.
		The Mathematics and Technology Seminar, formerly known as Empennage, will meet in the MSRI lecture hall Tuesday afternoons from 2 to 3.
		The Mathematics and Technology, formerly known as Empennage seminar has begun to attract an audience beyond MSRI, including scientists from other institutions and disciplines, both within and without academe.
	www.msri.org /local/computing/empennage/about_seminar.html (147 words)

	Ted's RV9 project - Empennage
		Empennage kit is ordered and hopefully will be here in the new year.
		In the meantime I'm taking care of any preparation, like gathering any tools I may be short of and supplies like alodine etc.
		Wings kit should be here soon so I wonder if I'll start in the wings before I finish the empennage.
	www.qsl.net /n0iak/rv9a/emp.html (507 words)

	Brian Meyette's RV-7A Empennage Mounting & Rigging August (Site not responding. Last check: 2007-10-18)
		I neatly trimmed up the RT elevator counterweight, so the profile of the lead matched the profile of the sheet metal, where they are exposed.
		If you read my "Empennage Build" page, you may recall that I was very unhappy that Jacob at Alexander Technical Center pounded my LT elevator weight in so hard we couldn't get it back out.
		Back to FUSELAGE while waiting for the aft elevator rod to come in, then I'll finish the empennage setup.
	brian76.mystarband.net /EmpennageMountAug03.htm (3041 words)

	ToolsContentpage
		My empennage I ordered is shipped by Van's with BAX Global and arrived on Wednesday 24th of June.
		The empennage kit is already provided with an update of the construction description pages (which I already ordered with the preview set) and a final set of building drawings...
		And he gave me this metal plastic for finishing purposes after assembling the fiber stuff to the empennage parts...
	www.skypassion.com /web-content/EMPENNAGE/c_Empennage.html (5209 words)

	Vought Products - Empennage & Flight Control Surfaces
		The Boeing 747 tail section, built in Vought's Dallas plant, includes the aft body section, the vertical and horizontal stabilizers, rudders and elevators.
		For the C-130J Hercules, Vought's facilities in Nashville and Dallas produces the empennage.
		The company has delivered more than 2,400 empennage sections to Lockheed Martin since it became a supplier for the C-130 program in the 1950s.
	www.voughtaircraft.com /ProdProg/ourproducts/empennage.htm (225 words)

	Empennage Mounting Adventures
		We'll want to be extremely careful when we mount the wings - the empennage probably isn't quite as vital, but as long as I need to get one of these and be careful about getting the fuselage level, it's not a bad idea to do it now.
		Stuff we're trying to get done tonight: we're going to try to get the holes match drilled in the elevator horns, the elevator stop fabricated, the clearance between the elevator couterweights and the horizontal stab fixed.
		It's quitting time anyway, and we've gotten everything done that was on the to do list for today, so let's call it a night.
	www.golfsierra.org /2feb05/2feb05.html (511 words)

	buildblogger.com (Site not responding. Last check: 2007-10-18)
		Getting the parts primed was a bit more invloved than planned, but once the facility was prepared and the proper supplies obtained, painting went very well.
		Vertical Stab spar and doubler clecoed, matchdrilled and deburred.
		Here is a photo of the modification to the nose ribs to prevent the skin from being dented when attaching to the skeleton of the VS.
	buildblogger.com (357 words)

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