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Topic: Pusher configuration

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	Pusher configuration Information
		An aircraft constructed with a pusher configuration has the engine mounted with the propeller facing backwards such that the aircraft is "pushed" through the air, as opposed to the tractor configuration in which the aircraft is "pulled" through the air.
		With the widespread adoption of interrupter gear, the benefits of the pusher configuration were lost and the tractor configuration was favoured.
		The disadvantage of the pusher configuration concerns safety of the occupants in a crash or crash-landing.
	www.bookrags.com /Pusher_configuration (0 words)

	News \| TimesDaily.com \| TimesDaily \| Florence, Alabama (AL)
		With the widespread adoption of interrupter gear, most benefits of the pusher configuration were lost and the tractor configuration was favoured.
		The pusher configuration generally places the propeller(s) aft of the main landing gear.
		If an airplane with wing-mounted pusher engines experiences wing icing and subsequently flies into warmer air, the pusher props may ingest pieces of ice as they shed, posing a hazard to the propeller blades and other parts of the airframe that can be struck by chunks of ice flung by the props.
	www.timesdaily.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=pusher_configuration (0 words)

	pusher - Search Results - MSN Encarta
		Plot Summary: Frank is a drug pusher on the roll, until he makes a huge deal with dope that he hasn't...
		Pusher II on IMDb: Movies, TV, Celebs, and more...
		Nustar, Inc. and Power Pusher are leading the way in the Material Handling World.
	encarta.msn.com /encnet/refpages/search.aspx?q=pusher (206 words)

	Dispatch and receive terminal for a pneumatic carrier system - Patent 4189260
		The pusher 16 is adapted to move between retracted and extended positions for initially kicking or pushing the carrier 15 from the terminal housing 11 into the system tube 13 in response to pneumatic pressure in the pusher housing 17 when the terminal 10 is in the dispatch mode as discussed in detail below.
		The pusher housing 17 is connected to the terminal housing 11 on that end wall 28 opposite to the system tube port wall 27 of the terminal housing, and itself includes end wall 28 as a common end wall with the terminal housing.
		The pusher flap is swingably or pivotally mounted to the pusher housing 17 on an axis 23 elevated above a carrier 15 at rest in the terminal housing and transverse to that carrier axis 22, and is mounted to cooperate with pressure port 50 in the terminal's common end wall 28.
	www.freepatentsonline.com /4189260.html (5601 words)

	Pusher configuration - Biocrawler (Site not responding. Last check: 2007-10-31)
		An aircraft constructed with a pusher configuration has the engine mounted with the propeller facing backwards such that the aircraft is "pushed" through the air, as opposed to the tractor configuration in which the aircraft is "pulled" through the air.
		In the early years of the First World War pushers were favoured by the British because they enabled a forward-firing gun to be used without being obstructed by the arc of the propeller.
		With the widespread adoption of interrupter gear, the benefits of the pusher configuration were lost and the tractor configuration was favoured.
	www.biocrawler.com /encyclopedia/Pusher_configuration (284 words)

	Top Literature - Pusher configuration
		Pushers did not become extinct after the war but were a minority of new aircraft designs.
		The pusher configuration generally places the propeller(s) aft of the main landing gear.
		If an airplane with wing-mounted pusher engines experiences wing icing and subsequently flies into warmer air, the pusher props may ingest pieces of ice as they shed, posing a hazard to the propeller blades and other parts of the airframe that can be struck by chunks of ice flung by the props.
	encyclopedia.topliterature.com /?title=Pusher_configuration (1093 words)

	NationMaster - Encyclopedia: Pusher
		As the pusher patients were tilted in a smaller range into the ipsiversive direction compared to the other three control groups, we restricted the analysis of the leg-to-trunk orientation (same for the head-to-trunk orientation) to the maximum body tilt angles which were reached by each single participant under both viewing conditions.
		From Figure 2 it is evident, that the pusher patients demonstrated an ipsiversive shift of the intercept as well as a steeper slope of the linear regression of leg orientation as a function of trunk tilt.
		The pusher patients' linear regression of the leg-to-trunk showed a steeper slope compared to the subjects not showing pushing behaviour indicating that (with respect to the trunk tilt) their non-paretic leg response was performed stronger than necessary.
	www.nationmaster.com /encyclopedia/Pusher (453 words)

	RV PROFILE
		Pusher engine/propeller aircraft are designed to "push" the plane through the air while a tractor configured aircraft "pulls" the plane through the air.
		If the pusher engine and propeller are located near the trailing edge of the wing, this problem is minimized, but others are encountered: i.e.: the blunt shape of the aft fuselage and the need to build a more complex twin boom arrangement.
		Ironically, the reason for this is the same as given as the benefit of the pusher configuration; that of keeping the fuselage, inboard wings, and tail surface out of the propeller stream.
	www.scs.unr.edu /~ged/rvprofile.htm (1050 words)

	Pusher configuration - Education - Information - Educational Resources - Encyclopedia - Music
		Many early aircraft were pushers including the Wright Flyer.
		The 1930s Supermarine Walrus was a seaplane with a single pusher engine.
		Possibly the most extreme example of the type is the Convair B-36, the largest bomber every operated by the United States, which wing-mounted six 3,800 hp Pratt & Whitney Wasp Major radial engines in a pusher configuration, augmented in the B36D by four General Electric J47 turbojets.
	www.music.us /education/P/Pusher-configuration.htm (0 words)

	Push plate tool holder for press brakes invention
		The configuration of this surface is dictated by the shape into which it is desired to deform a workpiece.
		In the present embodiments, the push plate is mounted on the tool holder so as to be moveable between a first configuration and a second configuration, and the driver is adapted for being operated so as to move the push plate from its first configuration to its second configuration.
		In some of the present embodiments, the tool holder is adapted for moving the tool along a pressing axis during a pressing operation, and the push plate is mounted rigidly on the tool holder such that the push plate is prevented from moving substantially in a direction parallel to the pressing axis.
	www.freshpatents.com /Push-plate-tool-holder-for-press-brakes-dt20060810ptan20060174680.php (2202 words)

	BTU Pusher Furnace
		BTU’s pusher furnaces are ideal for high-performance applications, such as advanced electronics, solid oxide fuel cells, fuel pellet sintering, capacitor manufacturing, metallizing and calcining.
		Pushers are configured to meet our customer’s specific process needs.
		Pushers operate in nitrogen/inert, hydrogen (dry or wet), and air or a combination, supporting a range of process environments from oxidizing to fully reducing atmospheres.
	www.bita.se /bitase1/btu-pusher-furnace.htm (274 words)

	Hartzell Propeller Press Room (Site not responding. Last check: 2007-10-31)
		Those aircraft designed in a conventional tractor configuration create propeller air flow environments that are usually predictable from one aircraft to the next.
		Pusher configured aircraft, on the other hand, vary widely with different applications and it is typically difficult to predict the air flow environment and therefore more difficult to optimize the blade's aerodynamic design.
		Piston powered pushers like the Angel 44 add one more interesting design element even compared to their turbine pusher brethren on account of more cumbersome piston engine nacelles which are difficult to fair aerodynamically.
	www.hartzellprop.com /pressroom/pr_htm/pr_02_11_94.htm (376 words)

	RV PROFILE
		Pusher engine/propeller aircraft are designed to "push" the plane through the air while a tractor configured aircraft "pulls" the plane through the air.
		If the pusher engine and propeller are located near the trailing edge of the wing, this problem is minimized, but others are encountered: i.e.: the blunt shape of the aft fuselage and the need to build a more complex twin boom arrangement.
		Ironically, the reason for this is the same as given as the benefit of the pusher configuration; that of keeping the fuselage, inboard wings, and tail surface out of the propeller stream.
	www.scsr.nevada.edu /~ged/rvprofile.htm (1050 words)

	Pusher config in German bombers, why? [Archive] - The Aerodrome Forum (Site not responding. Last check: 2007-10-31)
		I thought pushers were inferior, and the only reason they were kept in the "puller-pusher" combination, like the Zeppelin Staaken R VI bomber and other interwar planes was because of drag.
		However, I think pusher configuration was more from a safety standpoint of the prop tips getting very close to the crew in the front cockpit.
		Among the penalties of the pusher configuration fighter was greater structural weight.
	www.theaerodrome.com /forum/archive/index.php/t-22039.html (854 words)

	Krauss-Maffei Pusher Centrifuge \| Maximum Endurance, Low Space Centrifugal Separation Equipment
		Krauss-Maffei Pusher Centrifuge SZ Centrifugal separation technology with guaranteed endurance.
		Our pusher centrifuge ensures maximum online availability with minimum maintenance and low space requirement in many solid/liquid separation processes.
		Increased performance with high product quality through proper selection of the basket configuration, feed accelerator and screens.
	www.kmpt.net /pusher_centrifuge_SZ.aspx (129 words)

	[11.0] International Battlefield UAVs (2)
		The Shmel has a nose-mounted sensor turret; a pusher prop in a duct, powered by a small piston engine; a top-mounted wing in the rear, and a fixed landing-gear scheme whose struts seem to be designed as airfoils.
		The Expert is a tactical mini-UAV roughly in the class and configuration of the ATN Luna, while the Albatros is a tiltrotor design along the lines of the Boeing Eagle Eye, except that it has an inverted-vee tail.
		It has a conventional helicopter configuration, with a three-bladed main rotor with a diameter of 2.2 meters (7 feet 10 inches), an enclosed "fenestron" tail rotor favored by the French, and landing skids.
	www.vectorsite.net /twuav_11.html (2996 words)

	Aircraft engineering - Pusher Vs Tractor configuration
		By contrast, in the pusher configuration the propeller is in the fuselage's slipstream, so the air velocity at the leading edge is slightly less uniform than in the tractor configuration due to drag effects from the fuselage.
		I didn't say that the pusher design of the Altania or the Aeriks-200 is the reason that these designs have good performance - rather that these are two examples of the aircraft designers trying to minimize the adverse affects of the pusher configuration.
		The pusher configuration resulted from the desire, again, to improve passenger comfort by removing the props from the vicinity of the cabin.
	www.eng-tips.com /viewthread.cfm?qid=80691 (2088 words)

	ASK DJ Aerotech Question
		Pushers in general, and canard pushers in particular, are especially prone to this problem.
		The Prescott Pusher required humongous amounts of runway for takeoff, and the Rutan canards such as the VariEze and even the Voyager are known to have problems with long takeoff runs plus a tendency to surprise their pilots with sudden rotations once the nose finally does un-stick.
		In fact, part of the reason why the Voyager dragged its wingtips on the takeoff for the round-the-world flight was due to some attempts they made in the landing gear setup and the takeoff technique to restrain the overenthusiastic liftoff tendencies, which could have triggered some catastrophic flutter problems.
	www.djaerotech.com /dj_askjd/dj_questions/canardpusher.html (952 words)

	Aircraft
		In 1913 the Vickers company in Britain had exhibited a two-seat biplane of pusher configuration (i.e., with the propeller behind the engine) that was armed with a machine gun fired by an observer who sat ahead of the pilot in a tublike crew compartment.
		The French armed similarly configured Voisin pushers with machine guns (one had shot down a German aircraft as early as Oct. 5, 1914), but, burdened with the extra weight of observer and gun, such aircraft were slow and unmaneuverable, and their successes were mostly the result of accidental encounters.
		The Albatros D.I pioneered a fighter configuration that was to prevail into the 1930s: a compact, single-seat, externally braced tractor biplane armed with two synchronized machine guns mounted ahead of the pilot on the upper fuselage decking and aimed with a simple ring-and-bead sight.
	library.thinkquest.org /C001396/data/text/t25.htm (11374 words)

	A soaring success
		Besides its pusher propellers, it uses the three surface lift concept, with short additional wings in the nose cone region.
		The use of propellers in the `pusher' mode results in a quieter cabin unlike the usually noisy propeller-driven planes even while achieving an undisturbed air flow on the wings.
		Among the major assemblies in the prototype, NAL was responsible for the fabrication of the fairing, the flap, the aileron, the rudder, the elevator and the nacelle, HAL for the wing, TAAL for the horizontal tail, the vertical tail and the stub wing.
	www.frontlineonnet.com /fl2113/stories/20040702002408900.htm (3104 words)

	Diesel Pusher Motorhome
		pusher.]] An aircraft constructed with a pusher configuration has the engine mounted with the propeller facing backwards such that the aircraft is "pushed" through the air, as opposed to the tractor configuration in which the aircraft is "pulled" through the air.
		(Germany did not have the same requirement due to the early development of Fokker's interrupter gear.) Single-engine pushers usually had the engine mounted on the centreline at the rear of the aircraft's nacelle.
		Possibly the most extreme example of the type is the Convair B-36, the largest bomber ever operated by the United States, which wing-mounted six 3,800 hp Pratt & Whitney Wasp Major radial engines in a pusher configuration, augmented in the B36D by four General Electric J47 turbojets.
	www.artistbooking.com /trips/49/diesel-pusher-motorhome.html (728 words)

	The Dispatch - Serving the Lexington, NC - News (Site not responding. Last check: 2007-10-31)
		An aircraft constructed with a tractor configuration has the engine mounted with the propeller facing forwards such that the aircraft is "pulled" through the air, as opposed to the pusher configuration in which the propeller faces backwards and the aircraft is "pushed" through the air.
		However, by the mid-point of the First World War, interests in pushers declined and the tractor configuration dominated such that today all propeller-driven aircraft are assumed to be tractors unless stated otherwise.
		From a military perspective, the problem with single-engine tractor aircraft was that it was not originally possible to fire a gun through the propeller arc without striking the propeller blades with bullets.
	www.the-dispatch.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=tractor_configuration (338 words)

	Flightstar Sportplanes
		Our planes are designed only in the tractor-engine up front configuration; we believe this is the most proper and practical location for the powerplant.
		The tractor configuration keeps the engine and propeller out in front of the pilots, safely away from the fuel tank, primary structure and the control system.
		It is also much quieter than the pusher configuration, both in the cabin and on the ground.
	www.fly-flightstar.com /pages/Flightstar.htm (224 words)

	Device to XML Pusher Communications
		If XML Pusher is supplied without the EnvidasFW data acquisition and control application, the XML Pusher program requires a custom driver to use when communicating with other serial devices in the station.
		The device communication portion of XML Pusher is configured through database tables contained in the EnvidasFW database.
		Configuration of the driver(s) is via entry of settings in the driver configuration Tables.
	www.montz.com /internetoption/device2.html (597 words)

	Bidwell Bike Pusher: A Removeable Power Source for Your Bicycle..
		Have a ball, enjoy your lunch, then reconnect the Bidwell Bike Pusher to your bike and return home under all electric power, or pedal the bike without electric power…or maybe a little of both.
		The Bidwell Bike Pusher is based on a patent pending design that has evolved and been improved as a result of extensive Bidwell Bike Pusher racing and hundreds of commuter miles.
		And because of the Bidwell Bike Pusher’s unique design and independent action, the rider does not significantly feel any interference generated by the load behind the bicycle.
	www.rqriley.com /b-pusher.htm (1045 words)

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