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	Tailsitter - Wikipedia, the free encyclopedia
		A tailsitter is a type of VTOL aircraft that launches and lands on its tail, something akin to a Buck Rogers type rocket, such as the McDonnell Douglas DC-X Delta Clipper.
		The downfall of the tailsitter configuration was the lack of an ability to transition the pilot to a comfortable position from which to control his descent.
		This inability led to the concept being abandoned as soon as the experiments that led to the development of the Hawker Siddeley Harrier in the 1960s began to bear fruit.
	en.wikipedia.org /wiki/Tailsitter (251 words)

	Dictionary : V/STOL_Technology
		The Convair XFY-1 Pogo, developed in 1954, was a "tailsitter" aircraft with two large contra-rotating propellers.
		Some of these have been individual craft where a person stands atop a spinning propeller or ducted fan that lifts them off the ground-something that required a lot of courage from the pilot.
		Others have been aircraft that sit on their tails (so-called "tailsitters") and are lifted into the air before converting to horizontal flight.
	www.centennialofflight.gov /essay/Dictionary/VSTOL_tech/DI96.htm (733 words)

	Hiller X-18 (Site not responding. Last check: 2007-10-19)
		The fuselage was that of a Chase YC-122C transport.
		The two wing-mounted 7,100 eshp Allison T40-A-14 turboshafts came from the XFY-1/XFV-1 tailsitter (#23 and #24) program and could not be cross-linked.
		It had three engines, the two turboprops drove the 16 ft diameter counter-rotating three-bladed propellers and a 3,400 lb thrust Westinghouse J34 turbojet which produced pitch control thrust.
	www.vstol.org /wheel/VSTOLWheel/HillerX-18.htm (193 words)

	XFV-1 Pogo
		Rapid advances in turbojet technology were yielding engines and aircraft with twice the speed which the tailsitters could ever hope to achieve.
		More fundamentally, it was also becoming obvious to all that vertical-landing turboprops would always be too tricky to land--a difficult task for a highly skilled test pilot would be well-nigh impossible for a line pilot, especially under combat conditions.
		Putting a tailsitter down on a concrete ramp in full daylight was one thing; an uneven pasture or a heaving deck at sea would be quite another.
	www.globalsecurity.org /military/systems/aircraft/xfv-1.htm (838 words)

	Axis History Factbook: Messerschmitt Me-262 Schwalbe / Sturmvogel (Site not responding. Last check: 2007-10-19)
		Although it had fully-retractable "tailsitter" landing gear, the landing gear was bolted into the down position.
		The aircraft was a "tailsitter", with fully retractable landing gear.
		Given the aircraft's long nose, the "tailsitter" landing gear configuration made forward visibility on the ground extremely poor, and the downward-pointing jets also tore up the ground.
	www.axishistory.com /index.php?id=1156 (6915 words)

	Department of Aeronautics & Astronautics: Research Programs
		The Archytas air vehicle is a tailsitter design, with a ducted-fan propulsion system for efficiency and safety, and with wings and a canard tail surface for horizontal flight.
		The UAV is a tailsitter configuration, taking off vertically and transitioning to forward flight through a pushover maneuver.
		This year, progress was made in the design and construction of the spar structure to mount wings to the ducted-fan platform, and in testing of control-vane effectiveness using a newly-constructed torque/thrust stand.
	aa.nps.edu /programs/summaries/howard (4018 words)

	VSTOL/STOL Aircraft
		This "tailsitter" aircraft had two large contra-rotating propellers on its nose.
		Both were extremely difficult to control in vertical flight (the pilots had to look over their shoulders to see the ground when landing), and both were grounded in 1956.
		The Ryan X-13 Vertijet tailsitter was more successful.
	www.centennialofflight.gov /essay/Evolution_of_Technology/VSTOL_aircraft/Tech30.htm (1867 words)

	[9.0] US Battlefield UAVs (3)
		The Goldeneye is a "tailsitter" or "pogo" machine that takes off and lands straight up.
		It is a stumpy-looking machine with four tailfins, each with landing gear on the fintip, and a wing that pivots, allowing it to be aligned with the aircraft centerline in cruise flight and at a right angle to the centerline in hover flight.
		Details are unclear, but illustrations of the SkyTote show it to be another pogo-type tailsitter, with a surprising resemblance to the pogo fighters of the 1950s.
	www.vectorsite.net /twuav_09.html (4362 words)

	Hi Tech 1/48 Dassault Mystere
		Once impressive piece is the resin 'chunk' that is actually the intake centerbody, and it has a detailed cockpit tub on the topside and an equally detailed nosewheel well on the bottom.
		The sheer mass of this part is the nice bit of engineering in this kit, as this piece also serves as the ballast to keep this kit from becoming a dedicated tailsitter when completed.
		The etched metal parts and white metal castings round out the kit, and they provide a nice level of detail, and in the case of the metal landing gear struts, additional strength to the model.
	www.internetmodeler.com /2000/july/first-looks/hitech_mystere.htm (645 words)

	Tailsitter With Gear? - X-Plane.Org Forum
		The last time I built a tailsitter (in 7.60) the wheels had no friction whatsoever, so don't expect it to sit still
		This aircraft poses a number of interesting problems and it can be done, but it has taken a long time for Austin to model things correctly before it flew without cheats.
		A couple of other items are Lerche II and Convair 49 (built both), and there are some others in the US and French design books which are tailsitters.
	forums.x-plane.org /index.php?showtopic=11168 (556 words)

	Revell 1/96 Fokker F.27 (Site not responding. Last check: 2007-10-19)
		As the cabin windows were puttied over, the canopy was also glued and puttied into place and the entire airframe was painted white.
		Don't forget nose weight as it is a tailsitter.
		The wings, engine nacelles, and lower fuselage were painted light aircraft grey and the de-icer boots were painted fl.
	m2reviews.cnsi.net /scotts/civil/f27.htm (869 words)

	Axis History Factbook: Mitsubishi A6M Zero
		Although a two-blade propeller was initially fitted to the first A6M1 prototype, it led to vibration problems, and was replaced by a three-blade variable-pitch Hamilton Standard propeller, built under license by Sumitomo.
		The aircraft was a "tailsitter", with main landing gear hinged in the wings and retracting towards the fuselage, giving the Zero a comfortably wide stance.
		The tailwheel retracted into a nock under the tail, and a "stinger" type arresting hook was fitted just forward of the tailwheel.
	www.axishistory.com /index.php?id=1159 (4916 words)

	Tiltrotor Information - Online Prescription Medication Directory
		Another design philosophy was that instead of turning the wing, engine pods, or propeller shafts to horizontal and vertical, the entire aircraft could do the same.
		This resulted in the Ryan X-13 Vertijet tailsitter, which never went into production.
		However, Bell Helicopter has been dominant in tiltrotor development with major designs from almost every decade back to the 1950s.
	prescriptiondrug-info.com /drug_information_online.asp?title=Tiltrotor (1059 words)

	Lockheed XFV-1 Salmon Vertical Takeoff VTO downloadable card model
		Along with large and regular sized versions, his kit includes a downloadable set of "training wheels".
		This is one of 3 US tailsitters in the FG Collection.
		Thank you to you and the good people at Fiddler's Green for this SALMON.
	www.fiddlersgreen.net /AC/aircraft/Lockheed-XFV/xfv.php (305 words)

	An Aeronautical History of Flying Saucers
		Nonetheless, in spite of the belief that the miracle fighter was never officially developed, the fact is that the U.S.--ultimate destination of the information liberated from the Nazis--built at least two aircraft suspiciously similar to the revolutionary German project.
		These were the Lockheed XFV-1 "Tailsitter" and the Convair XFY-1 "Pogo", both equipped with fixed wings.
		In either case, propulsion was provided by means of a 5,850 HP Allison YT40-A-14 turbine, and two reverse propellers 4.8 meters in diameter.
	www.geocities.com /INEXPLICATA2000/issue1/1.htm (6327 words)

	Airfix 1/72 Gazelle (Site not responding. Last check: 2007-10-19)
		Due to the large greenhouse, the more adventurous (and less lazy than I), will have a great opportunity to detail the interior to a very high and visible standard.
		One word of caution when building, is that there is very little room under the floor for weight and you need to put in as much as possible as the Gazelle is a ready tailsitter.
		I flattened a bunch of fishing weights and crammed them in.
	modelingmadness.com /scotts/mod/gazelle.htm (529 words)

	P-61 Black Widow
		Fuselage assembly is easy, fit is very good, the main difficulty is glazing as there are too much pieces and complex shapes, the best way is vacuforming the whole canopy in one piece.
		In the nose segment I added ballast because this plane is a "tailsitter".
		The curved part of tail has a construction problem with unacceptable fit.
	paperwings.50megs.com /p61/p61.htm (365 words)

	Into the Wild Blue Yonder (Site not responding. Last check: 2007-10-19)
		Second place and $1,000 went to Technische Universitat Berlin's blimp.
		Third place and $500 went to the University of Texas at Arlington's tailsitter.
		The remaining six teams that entered vehicles were all close to the winners in scoring, said Naval Commander Grant Begley, one of the three judges.
	gtresearchnews.gatech.edu /reshor/rh-sf95/robot.htm (609 words)

	CONCORDE SST : FUEL SYSTEMS
		At the end of the Cruise during the deceleration fuel is pumped forward to the wing transfer and even the forward trim tanks is necessary thus moving the CofG forward again as the centre of lift moves reward.
		Once on the ground it is standard practice to then pump more fule into the forward trim tanks to correctly balance the aircraft, so it can be unloaded without any stability problems and the chance of it becoming a "tailsitter"
		The Movement of fuel also provides additional benefits at lower speeds: By making the aircraft rearward heavy during take off and landing, this causes the elevons control surfaces to move downwards to counteract this weight and in so doing so increases the camber of the wing generating more lift at slower speeds.
	www.concordesst.com /fuelsys.html (664 words)

	1/32 Rockwell OV-10D Bronco by Jack Gryskiewicz
		Concerning the nose shape, I had to cut it along the horizontal plane, and by doing so opening a lid so to speak, and adjust it in such a way that when refitted again the nose would have a lower profile and less steep angle from the tip of the nose towards the windshield.
		Also by opening the nose I could try to adjust the nosewheelbay (which didn’t work, so I just left it the way it was, it wasn’t that terrible afterall) and fill it up with lead weight, since this model would definitely be a tailsitter without some counter weight in the nose…..
		Note the off-sized nose in the picture above with the balsa mould intended for the heatformed canopy lateron.
	www.largescaleplanes.com /articles/JetAge/JackGryskiewicz/Bronco/Bronco.html (972 words)

	Personal Page of John Austen-Brown
		The president Gouge, inventor of the gouge flap, ordered the P74 towed across the airfield until it was out of sight.
		While with Percival I designed my first personal aircraft - see Tailsitter link.
		Next experience was the Canadair CL84 tiltwing and as part of weights did some work and later in Flight Sciences spent 7 years on the CL227 (now the Guardian).
	www.hoverplanes.org /personalpageblue (247 words)

	"Aerospace Projects Review"
		In response to a question in V2N2, Dennis has provided an article on a 3-engined 747 "Airbus" complete with engine details and a three-view.
		This article gives the back story for the Bell Mach 2 VTOL jet fighter, presenting the D-109 and D-139 as well as a WWII era tailsitter.
		This is the second of three parts describing the Bell Bomber Missile of the early 1950's, which led to the X-20 Dyna-Soar.
	www.up-ship.com /apr/volume2.htm (882 words)

	OV-1D Mohawk by Phil Brandt (Roden Conversion 1/48)
		Sadly, I experienced slight to moderate silvering even with large applications of my favorite decal aid, Solvaset and pricking with the tip of an XACTO blade.
		The model's weight and balance just didn't work out, and, although I wedged in a group of sheet lead in the nose, she's still a tailsitter.
		Guess I could've packed some additional lead into the nose section of the wing tanks, but the overall model weight may have adversely affected the spindly gear struts.I simply drill a small hole in the nosegear tire, and glue in a short piece of.030" plastic rod.
	hsfeatures.com /features04/ov1dpb_1.htm (1200 words)

	P-39Q
		I chose to close up both the nose and the engine compartment.
		It will take a fair amount of weight to keep this model from being a tailsitter and there is no way to conceal all the lead shot I used for weight and keep the nose open.
		The cockpit and nose compartment share a common "floor" the firewall, guns, stick, instrument panel, seat and seat frame (with a piece of armored glass) attach to this floor.
	members.tripod.com /yak1b/p-39q.htm (987 words)

	1/72 Revell Germany Me-262 by Ron Guerra
		The usual warning information is presented in about 500 languages (actually, 18), takes up 3 pages and includes the sometimes odd and vague-sounding advice to "Store chemical toys out of reach of young children", to "Wash hands after carrying out activities" and not to "swallow material".
		The instructions also mention you'll need 20 grams of weight to place in the nose of the model, otherwise you'll have a tailsitter.
		Color information is given for Revell paints, though some RLM numbers are also provided.
	www.aircraftresourcecenter.com /ISL/RoG/1.72/Me-262/Me-262.htm (1262 words)

	CollectAire 1/48 North American T-39A/D Sabreliner
		The modeler will also have to cut the triangular windows out of the provided clear stock and position them on the fuselage.
		Make sure you use lots of weight up front as this model is guaranteed to be a tailsitter!
		Photoetch Details Nice and comprehensive providing instrument panels for both the A and the D variants.
	www.cybermodeler.com /hobby/kits/coll/kit_coll_t-39.shtml (860 words)

	Tamiya 1/48 Do-335A-0/1 Pfiel Preview
		This area in the front will be full of weight, which Tamiya also supplies.
		Without it, the model will be a dedicated tailsitter!
		As you can see, you do not get pre-weighted wheels with this kit so will have to do that yourself.
	modelingmadness.com /scotts/axis/luft/335preview.htm (618 words)

	1/32 A-10 by Jeffrey Brundt
		I wanted a cockpit that was more 'plug-n-play' and the CE 'pit fit the bill nicely.
		(it truly is a work of art in itself) Since the kit is a tailsitter there's quite a bit of lead solder stuffed in the nose.
		Because of this I didn't install the gun.
	www.largescaleplanes.com /articles/JeffreyBrundt/a10/a10.html (262 words)

	Aircraft Design Information Sources: X-Series Aircraft (Site not responding. Last check: 2007-10-19)
		Convair N - A jet powered version of the X-11 (program canceled).
		Ryan Y Dec. 1956 A pure jet "tailsitter" VTOL aircraft X-14.
		Bell Y Feb. 1957 A deflected jet VTOL aircraft X-15.
	www.aoe.vt.edu /~mason/Mason_f/ACiXseries.html (494 words)

	Airfix 1/72 Heron II (Site not responding. Last check: 2007-10-19)
		Don't go through a lot of effort on it as it is difficult to see through a rather distorted canopy.
		You do need to pack the nose with lots of weight and I had to add a few weights behind the cockpit bulkhead as this baby is a real tailsitter.
		The landing gear really needs replaced and Aeroclub does offer a replacement set, which I did not use.
	m2reviews.cnsi.net /scotts/civil/heron.htm (638 words)

	IEEE Newsletter
		Bob Bitmead, (IEEE CSS DL) "Model Predictive Control, State Estimation and Coordinated Vehicles" is scheduled for 29 Oct 03, 5:30 for 6:00pm, S112, Engineering South Building, University of Adelaide.
		The invited lecture T‑Wing UAV Project (a tailsitter) (Dr Hugh Stone) has been deferred to next year.
		We are holding a seminar at DSTO, 24 October 2003 titled "Australian Defence Satellite Communications Capability." Contact the Chair for details.
	www.ewh.ieee.org /r10/s_australia/newsletters/HTML/2003-9.htm (1529 words)

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