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Topic: VTOL

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	NationMaster - Encyclopedia: VTOL
		VTOL is an abbreviaton for Vertical Take-Off and Landing.
		An early contribution to VTOL was Rolls-Royce's Thrust Measuring Rig ("flying bedstead") of 1953.
		VTOL · V/STOL ;· VTOHL STOL is an acronym for Short Take-Off and Landing, used in the aircraft industry to describe airplanes with very short runway requirements.
	www.nationmaster.com /encyclopedia/VTOL (2685 words)

	VTOL Summary
		An early VTOL prototype was Rolls-Royce's "flying bedstead", this led to the first British VTOL aircraft, the Short SC.1 which used a mixture of vertical lift engines and a horizontal one for forward thrust.
		The idea of using the same engine for vertical and horizontal flight by altering the path of the thrust led to the Bristol Siddeley Pegasus engine which used rotating ducts to direct thrust over a range of angles.
		The Dassault Mirage III - V Balzac (not to be confused with the Mirage 5) achieved transition from vertical to horizontal flight in March of 1966 and reached Mach 1.3 in level flight a short time later.
	www.bookrags.com /VTOL (1046 words)

	last frontier VTOL, The Flight Journal - Find Articles
		VTOL represents the last frontier primarily because, although we've poked our toes into those aeronautical waters, with the exception of helicopters, we really haven't waded all the way in and learned to swim.
		Thrust-per-shaft-horsepower in VTOL aircraft is determined by the amount of horsepower applied to the tube of air being accelerated by the powerplant.
		If all of the VTOL concepts, those that have been proposed and those that have flown, are compared, it would be noticed that there is a distinct gap between the lightly loaded birds and those that carry a lot of weight on a small disc.
	www.findarticles.com /p/articles/mi_qa3897/is_200306/ai_n9262064 (855 words)

	Unmanned VTOL ground surveillance vehicle - Patent 5575438
		The VTOL UAV can be remotely landed at disaster sites of interest, and the sensor package activated to provide sensor data to assess the extent of the disaster, to provide an early warning of an exacerbation of the disaster conditions, and/or to survey for possible victims.
		A VTOL UAV may be expeditiously deployed to toxic accident sites to provide relevant sensor data, e.g., video, chemical detectors, to allow remote assessment of the extent of damage and/or to formulate a containment/cleanup campaign.
		A further object of the present invention is to provide a sensor subsystem for the VTOL UAV that is reconfigured to a deployed configuration for accomplishment of the ground surveillance mission and reconfigured to a stowed configuration for transportability of the UAV.
	www.freepatentsonline.com /5575438.html (7938 words)

	[No title]
		Of course ascending on a dry grassy LZ might result in fire from the rear exhaust but maybe that could be overcome...
		The problem here is, you'd need absolute reliability in your engines to guarantee continuously safe VTOL ability: otherwise, if one engine goes down, you've just become a standard long runway (or at most STOL) transport.
		units for VTOL transport 2/19/2005 7:29:52 PM Problem with engine reliability and/or combat engine damage is same as for the V-22, except the V-22 can't land with props down..
	www.strategypage.com /militaryforums/28-232.aspx (726 words)

	UN SPACY VTOL HEAVY TRANSPORT (from MACROSS 7)
		The UN Spacy heavy VTOL is a all purpose transporter of heavy materials including mecha.
		AUTO-PILOT: The VTOL is equipped with a computerized auto-pilot, allowing the pilot to relax or even sleep during long voyages.
		The onboard computer will alert the pilot when the VTOL is near its destination, and can also be set to automatically signal when sensors detect objects near the it.
	unsd.macrossroleplay.org /heavyvtol.html (630 words)

	VTOL Articles from AMAZINES.COM - The Article Database and EZine Publishers Database
		VTOL is an acronym for Vertical Take-Off and Landing.
		It is one of the earliest examples of VTOL aircraft.
		An early VTOL prototype was the so-called "flying bedstead".
	www.amazines.com /VTOL_related.html (393 words)

	Lockheed XFV-1 VTOL Salmon Experimental Tail Sitter
		It was a result of a proposal issued by the Navy in 1948 for an aircraft capable of vertical takeoff and landing (VTOL) aboard platforms mounted on the afterdecks of conventional ships.
		In 1950, this requirement was revised to call for a research aircraft capable of eventually evolving into a VTOL ship-based convoy escort fighter.
		Both they and the USAF had issued VTOL study contracts as early as 1947, and in 1950 the Navy held a competition to produce a VTOL fighter with conventional flight performance which could compete favourably with contemporary fighter aircraft.
	www.fiddlersgreen.net /AC/aircraft/Lockheed-XFV/info/info.htm (990 words)

	Soviet Jet VTOL: Yak-36, Yak-38, & Yak-41
		It is known that in the mid-1950s the Soviets developed their first jet VTOL platform, a test rig comparable to the British Rolls Royce "Flying Bedstead" rig and apparently known as the "Turbolet".
		It was recognized from the outset that flying a jet VTOL aircraft was something new, unfamiliar, and tricky, dictating development of a conversion trainer.
		The first full VTOL flight was on 13 June 1990, and the first landing on a naval vessel, the carrier-cruiser BAKU (later ADMIRAL GORSHKOV).
	www.vectorsite.net /avredvt.html (4027 words)

	UN SPACY MULTIPURPOSE VTOL TRANSPORT (from MACROSS 7)
		The UN Spacy Multipurpose VTOL transport is a all around workhorse of the fleet.
		The pilot and cockpit section/escape pod will be automatically ejected from the doomed VTOL before it explodes by the main computer.
		VTOL speed is slowed by half by anything above 20 tons.
	unsd.macrossroleplay.org /multivtol.html (786 words)

	VTOL (Site not responding. Last check: )
		VTOL is an abbreviation for Vertical Take-Off and Landing.
		VTOL describes fixed-wing aircraft that can lift off vertically.
		My focus will be in making a VTOL design that is a repeatable project for the advanced R/Cer; one that is easy to repair and looks like a real model plane.
	www.gregcovey.com /vtol.htm (271 words)

	Navy Awards Vertical Takeoff UAV Contract
		The Navy is also considering VTOL UAVs for missions other than reconnaissance, and recently began demonstrating their potential for logistics and resupply missions.
		Several schemes are being considered to capture the UAV upon landing, including spring loaded clamps on the landing gear that would grip a grid in the ship’s deck, or an inflatable airbag covered with Velcro which would be flown at a special mat, where it would stick until the crew could properly secure it.
		The VTOL UAV is the second aircraft being developed as part of the DARPA AAV program; a 30 month Advanced Technology Demonstration contract was awarded March 1998.
	www.vtol.org /uavpaper/NavyUAV.htm (5641 words)

	Airport Design Tutorial Page 8 (Site not responding. Last check: )
		Increased usage of VTOL aircraft as well as VTOL aircraft with passenger loads between 30 and 60 will create a whole new look at your local airport.
		VTOL aircraft do not require runways, merely an unobstructed path to a circular pad.
		This would limit the amount of passengers that could be served at that airport despite the fact that the surrounding population has continued to increase.
	virtualskies.arc.nasa.gov /design/tutorial/tutorial8.html (814 words)

	Why the VTOL Fighter? (Site not responding. Last check: )
		In more general terms, however, the VTOL is thought of as a conventional type of aircraft with special features added to enable it to rise vertically during takeoff and to land from a vertical descent.
		A major problem that detracts from the potential of the Vertifan for VTOL fighter application, however, centers around the structural weakness inherent in the louvered wing design, which tends to restrict the G-forces that can be applied.
		Although the vertical-thrust engines are dead weight when VTOL operations are not required, the engines can be removed and replaced with fuel cells for long-range, higher-payload operations requiring the conventional takeoff and landing mode.
	www.airpower.maxwell.af.mil /airchronicles/aureview/1968/jul-aug/hite.html (2643 words)

	Focke-Wulf VTOL Project Luft '46 entry
		Very little is known about this VTOL (Vertical Takeoff and Landing) project.
		The entire aircraft had a aerofoil section, and there were two huge propellers located in the center of the aircraft.
		There is no data for dimensions, weights or performance for the Focke-Wulf VTOL project
	www.luft46.com /fw/fwvtol.html (169 words)

	Halfbakery: Emergency Service VTOL aircraft
		Second only to the VTOL ability, it would have the muscle necessary to carry something like a fire engine over a potentially long distance.
		Summary: Use VTOL aircraft instead of current aircraft/helicopters to assist emergency service personnel, and make a single ESVTOL that serves all the emergency services, so it can fit any function need as quickly as possible.
		Disregarding the amount of space such an aircraft would require to set down, and of course the huge noise disturbance of it landing in a city street, VTOL Aircraft are massively expensive, both to produce and maintain.
	www.halfbakery.com /idea/Emergency_20Service_20VTOL_20aircraft (627 words)

	VTOL
		This paper summarizing both the early history of deflected slipstream approach to creating a VTOL airplane, and the modern fulfillment of that approach was presented at: the American Helicopter Society 61st Annual Forum, Grapevine, TX, June 1-3, 2005.
		In contrast to the other VTOL's, that most prodigious vibration generator, the helicopter, which requires a high ratio of ground service time to flight time, the smooth dual rotation system of the Arc Wing VTOL Airplane causes little shake, little low or high frequency vibration with proportionately less fatigue failure, parts replacement, and maintenance.
		In propulsion, the Arc Wing VTOL without cyclic and collective pitch hubs, and flapping blades, is far simpler, and lighter than either the helicopter or the tilt rotor and therefore cheaper to build and maintain.
	www.aeromobile.com /aeromobile_vers2/VTOL/body_vtol.html (1359 words)

	Four Poster Thrust Vectoring of a Pure VTOL Aircraft
		This little open air cockpit aircraft, assembled from existing off-the-shelf parts, influenced the development of VTOL aircraft in the same way Sikorsky VS-300 influenced development of the helicopter some twenty years before.
		A need to locate passengers closest to the center of gravity prohibits the use of a single lift/cruise engine system like that of a Harrier, so a twin engine, high wing system has been selected.
		The overall cruise performance is expected to be 10% - 15% lower than that of a twin turbofan powered business jet due to curved ducts and straight tapered wing.
	www.kulikovair.com /VTOL.htm (592 words)

	The VTOL Lifter-Craft MkIII by Jean-Louis Naudin
		The purpose of this project is to test a new VTOL prototype which uses the Lifter technology
		The VTOL Lifter-Craft MkIII is 600 mm wingspan and 700 mm length.
		After the encouraging results of the previous steering tests of the VTOL Lifter-Craft (see the TEST #2 above), I was fully confident that it was now possible to improve the principle.
	jnaudin.free.fr /html/lftcmk3.htm (714 words)

	Future Flight
		VTOL, powered-lift aircraft is a four passenger, gearless tilt-prop design which is able to take off and land vertically, like a helicopter, yet is able to cruise near 300 MPH.
		This VTOL has been designed to be safe, easy to fly, and includes auto-parachute deployment should the engines happen to fail.
		This lightweight VTOL was designed for high rise building fire emergency rescue operations, disaster relief and emergency bridge and tower repairs where ladders, cranes or enclosed helicopters can't perform the required work.
	www.iq-home.com /FutureFlight/Future_Flight.htm (2608 words)

	Turkey's Kalebaykar reveals VTOL UAV demonstrator test programme-14/08/2006-Flight International
		Turkey's Kalebaykar unmanned air vehicle joint venture flew a vertical take-off and landing (VTOL) UAV ; demonstrator adapted from a model helicopter in June and is planning to fly a larger, more advanced VTOL testbed by November.
		The autonomous VTOL guidance and control system is based on algorithms originally developed by the joint venture for its Bayraktar mini-UAV, a hand-launched fixed-wing system now on order for the Turkish army.
		While the initial VTOL flights have been successful, further changes to the suite are expected to expand its capabilities, with the joint venture also running a benchtop testbed that uses simulation-based inputs to test system characteristics.
	www.flightglobal.com /articles/2006/08/14/208418/turkeys-kalebaykar-reveals-vtol-uav-demonstrator-test.html (569 words)

	Skyaid Org. - Other VTOL
		VTOL ATC Sept 2000 a possible class project for Skycars
		US Congress long discussion May 9 on VTOL, tilt rotor, NASA, DP-2, and a little mention of Skycar.
		Requirements for a VTOL to be used widely by Henry Lahore
	www.skyaid.org /other_vtol.htm (572 words)

	Amazon.com: VTOL (Site not responding. Last check: )
		Vtol aircraft and helicopters by John William Ransom Taylor (Unknown Binding - 1967)
		Tables of interference factors for use in correcting data from VTOL models in wind tunnels with 7 by 10 proportions (NASA) by Harry H Heyson (Unknown Binding - 1967)
		Helicopters and VTOL aircraft by John William Ransom Taylor (Unknown Binding - 1968)
	www.amazon.com /s?ie=UTF8&keywords=VTOL&tag=icongroupinterna&index=blended&link_code=qs&page=1 (349 words)

	FanTail VTOL Miniature UAV
		Fantail, developed by ST Aero is a miniature "tail sitter", capable of vertical takeoff and landing (VTOL) and hovering, even under severe weather conditions, such as strong winds and gusts.
		When positioned in a vertical orientation, the FanTail maintains a stable, low speed flight while the horizontal orientation enable high speed dashes (70 knots) from one position to another.
		FanTail can be operated in direct (line of sight) mode, or in cooperation with communications relay UAVs, such as the MAV-1, also developed by ST Aero.
	www.defense-update.com /products/f/fantail.htm (235 words)

	SAIC: Vigilante® Helicopter VTOL UAV: Overview
		Vigilante® Helicopter Vertical Takeoff and Landing (VTOL) Unmanned Aerial Vehicle (UAV)
		Vigilante® is an SAIC-developed family of small, inexpensive Vertical Takeoff and Landing (VTOL) Optionally Piloted and Unmanned Aerial Vehicles (UAV) that are based on the commercially available Ultrasport 496 sport helicopter.
		Vigilante are fully capable VTOL UAV systems including air vehicle and ground support systems.
	www.saic.com /products/aviation/vigilante/vig.html (312 words)

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