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Topic: Tractor configuration

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	Tractor configuration - Wikipedia, the free encyclopedia
		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.
		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.
	en.wikipedia.org /wiki/Tractor_configuration (348 words)

	Tractor - Wikipedia, the free encyclopedia (via CobWeb/3.1 planetlab1.netlab.uky.edu) (Site not responding. Last check: 2007-11-03)
		The classic farm tractor is a simple open vehicle, with two very large driving wheels on an axle below and slightly behind a single seat (the seat and steering wheel consequently are in the center), and the engine in front of the driver, with two steerable wheels below the engine compartment.
		Older tractors usually require that the operator depress the clutch in order to shift between gears (a limitation of straight-cut gears in the gearbox), but many modern tractors have eliminated this requirement with the introduction of technologies such as power shifting in the 1960's and more modern continuously variable transmissions.
		Some farm-type tractors are found elsewhere than on farms: with large universities' gardening departments, in public parks or for highway workman use with blowtorch cylinders strapped to its sides and a pneumatic drill air compressor permanently fastened over its power take-off.
	en.wikipedia.org.cob-web.org:8888 /wiki/Tractor (2738 words)

	Propeller Configurations
		The U.S. Army banned this type of propeller configuration in late 1914 after several pilots died in crashes of planes of this type.
		The Blériot monoplane was an early aircraft with a tractor propeller
		Tractor aircraft have the engine and propeller at the front of the aircraft where the thrust draws or pulls the airplane.
	www.centennialofflight.gov /essay/Dictionary/Propeller_Design/DI62.htm (190 words)

	Motorized cable mechanism for positioning tractors in a printer - Patent 4550623
		Each pair of tractors is mounted on a continuous cable loop arranged in a figure-eight configuration such that when one of the tractors is moved, the other tractor will move the same distance in the same direction as the first tractor while maintaining relative alignment with respect to the first tractor.
		Tractors 2 and 3, are slidably mounted on metal rod 7 and on shaft 9; tractors 4 and 5 are slidably mounted on metal rod 6 and on shaft 8.
		Tractor pair 2 and 4 are fixedly attached to cable loop 10 and tractor pair 3 and 5 are fixedly attached to cable loop 11.
	www.freepatentsonline.com /4550623.html (4069 words)

	Types of Tractors
		In Britain the word "tractor" usually means "farm tractor", and using "tractor" to mean other types of vehicles is known of in the vehicle trade but unfamiliar to much of the general public.
		The farm tractor is used for pulling agricultural machinery or trailers, for ploughing, harrowing and similar tasks.
		loader tractors were created by removing the blade and substituting a large volume bucket and hydraulic arms which can raise and lower the bucket, thus making it useful for scooping up earth, rock and similar loose material to load it into trucks.
	www.edinformatics.com /inventions_inventors/tractor.htm (1539 words)

	Tractor Accessory Accident Attorney John Gehlhausen - Danger in The Fields
		As early as 1949, it was recognized by the tractor manufacturing industry that because of the many positions and situations in which tractors are used, efforts to mechanically prevent them from rolling over were futile, and the only effective way to protect the operators was installing protective roll guards.
		Despite the fact that U.S. tractor manufacturers were aware as early as the mid-1950’s of what was happening in other parts of the world regarding tractor overhead protection, and that their tractors were being sold in Sweden with roll guards after July of 1959.
		Tractor advertising brochures of the manufacturer after 1966 (when roll bars began to be marketed by the tractor manufacturers) should be requested even if they are not of the particular model in question.
	www.tractorlaw.com /html/danger-fields.html (6510 words)

	NIOSH FACE Program: In-house Report 2000-18 \| CDC/NIOSH
		The tractor was equipped with a manure scraper fashioned from half a tractor tire mounted on the draw bar at the rear of the tractor.
		As the tractor approached the open mouth of the manure pit, the victim applied the brakes, and the tractor skidded on the concrete surface wet from the manure.
		The tractor was driven forward to scrape up the manure and gather it into a pile at the mouth of the pit (Picture 2).
	www.cdc.gov /niosh/face/In-house/full200018.html (2441 words)

	Find and post your load, tractor.
		The combination of such a tractor with its trailer is called a tractor-trailer, and is a common form of truck used for commercial shipping of freight.
		The size - especially with modern tractors - and the slower speeds are one of the reasons the government urges motorists to use caution when encountering a tractor on the roads.
		Of non-vehicles, a tractor is a part of printer that pulls the paper inside and pushes it outside of the printer.
	www.matchtruckloads.com /tractor.html (1463 words)

	Welcome to Tractor Shop \| Sample Article
		IH offered a number of turbocharged tractors during the life of the 1468, and a 1468 with a turbo decal on its hood is shown in the 1974 Buyer's Guide, but there was no such tractor.
		This particular tractor is equipped with the optional pressurized cab and the exhaust stack extensions.
		Here, a naturally aspirated 1468 tractor is mislabeled and the caption calls the tractor a 1468 Turbo, and although it never indicates whether the tractor had one or two turbos?in fact it had none.
	www.tractorshop.com /articles/ih.html (2288 words)

	Pierce County Fair (Site not responding. Last check: 2007-11-03)
		Tractor and driver must be from Pierce County in the Farm Class.
		Tractors having trouble can drop to the end of the class and if the last tractor is having trouble, puller will be allowed five minutes to fix problem before next class is allowed to start.
		Tractors are limited to one turbo with an inlet of 3" or less and an outlet of 3" or less.
	www.co.pierce.wi.us /fair/Tractor_Pull_Rules.htm (1397 words)

	Air Tractor Lowers the Boom on Spray Drift (Site not responding. Last check: 2007-11-03)
		This configuration is achieved by using extended boom hangers that drop the boom 9 inches below the standard configuration, which places it below the step.
		Leland Snow, Air Tractor President, said the lowered boom system is the latest development to "give operators a way to spray more precisely, with less drift, so that more chemicals go where they're intended to go, instead of outside the spray line or into the atmosphere.
		Air Tractor's new lowered boom is now available as an option on all new Air Tractors, and in the form of a retrofit kit for existing models.
	www.airtractor.com /press/boom.html (686 words)

	Standard Tread Tractor (Site not responding. Last check: 2007-11-03)
		In the "Standard Tread" configuration, the tractor has a wide front end which is NOT adjustable for width.
		The tractors that were available only as "Standard Tread" were the D, BR, AR, R, 80, 820, 830, 320, 330, L and LA.
		In addition to having the usual tricycle front end configuration with TWO wheels close together, Some of the row-crop tractors were available as "Standard Tread" tractors.
	www.retiredtractors.com /Popper/Standard.html (285 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 placement of the engine puts the pilot and passenger at the CG of the plane, removing the weight and balance problems of other designs.
		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)

	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.
		The slipstream issue with tractor vs pusher configuration is less of an issue with low power flight such as motor gliders and self launching gliders.
		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 (2068 words)

	CaseIHQuadtrachistory
		And with the 26 degrees of oscillation between the front and rear of the tractor, operators enjoy a superior ride, while the tractor provides superior flotation and traction.
		All pivots operate in lube-for-life bushings; the idlers and rollers operate in sealed tapered bearings, and the track tension is maintained as the operator operates the tractor hydraulic system.
		Case never referred to these tractors as "Quadtracs" in their computer system, they were referred to as "9370Q" or "9380Q", which is how they are marked on the serial# plate.
	www.bigtractorpower.com /caseihquadtrachistory.htm (544 words)

	2006 PIERCE COUNTY FAIR (Site not responding. Last check: 2007-11-03)
		Flagman uses his judgement as to when tractor is too high to insure the safety of the driver and the safety of others.
		Tractors can have any size injection pump up to and including a P series Bosch pump.
		Tractors must have a second fuel shut-off at the fuel pump.
	www.co.pierce.wi.us /fair/Tractor_Pull_Rules_06.htm (1347 words)

	Novell NetWare and Dell Clusters: An Upgrade Case Study
		Each server was configured to use one particular logical storage device, and the company's data and applications were split between the two devices.
		This type of cluster configuration can deliver twice the performance capabilities of a traditional active/passive cluster configuration, in which one server acts only as a standby or failover device.
		The migration from Novell NetWare 4.11 to NetWare 6 was aided by the implementation of a Dell cluster configuration.
	www.dell.com /content/topics/global.aspx/power/en/ps3q02_bicknelle?c=us (1562 words)

	Sterling Sale Dump Page (Site not responding. Last check: 2007-11-03)
		The aerodynamic A-Line tractor is designed for the rigors of specialized hauling.
		And with three engine manufacturers and ratings up to 550 hp, the A-Line tractor has the pulling power for even the heaviest loads.
		The tractor configuration of the L-Line, our most popular vocational truck, has just the type of heavy-duty options you need in a tractor.
	www.nwfordtrucks.com /sales/sterling/hauling.html (169 words)

	Linwood Snow Pictures
		During the winter, the tractor is equipped with a Sears 46" two-stage snow blower assembly which does really well in the average Colorado winter snowfall.
		In the spring, when snows are wet and clog the snow blower chute (or in the winter when there is a one or two inch dusting), the rear-blade allows for pulling the snow off to the side.
		The original tractor configuration lends itself to the city.
	www.ntw.net /~w0ui/family_webpage/linkpages/snowpage.htm (479 words)

	RV PROFILE
		The RV's "traditional" configuration; tractor engine, monoplane, stabilizer in the rear, is an exercise in logic, not simply a concession to convention.
		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.
		Without the accelerated airflow from the tractor propeller over these surfaces, some lift and controllability is lost, thus requiring a higher landing speed for any given wing loading.
	www.scs.unr.edu /~ged/rvprofile.htm (1050 words)

	Saudia Arabian Firm Purchases AT-802 (Site not responding. Last check: 2007-11-03)
		Equipped with the dual-cockpit configuration, a PT6A-67AG turbine powerplant and standard spray system, the Air Tractor will be used for oil spill dispersal work in the Red Sea area.
		While the Air Tractor is the firm's first aircraft of its type, they know that the AT-802 is the finest plane for oil spill dispersal work.
		Prior to purchasing the Air Tractor, Saudi Aramco would convert one of their three Fokker F-27 planes to a tanker configuration that could hold 1000 gallons of dispersant.
	www.airtractor.com /press/saudia.html (523 words)

	Prop Pitch - Airwarfare (Site not responding. Last check: 2007-11-03)
		All aircraft in IL2 and IL2FB are of the tractor configuration.
		A pusher configuration has the propeller behind the engine and pushes the aircraft through the air.
		The tractor configuration has the propeller in front of the engine and pulls the aircraft through the air.
	www.airwarfare.com /mediawiki-1.4.5/index.php?title=Prop_Pitch (2077 words)

	AAA Foundation for Traffic Safety - Media
		This older, non-aerodynamic tractor-trailer configuration was chosen to evaluate more effectively any differences among the devices.
		Configuration 1 was a 1997 Freightliner tractor-trailer (representing the newer, more aerodynamic designs) with no spray suppression devices.
		At the lower vehicle speed, regardless of the wind condition, the addition of spray reduction devices to the newer and more aerodynamic tractor-trailer configuration did not result in a significant reduction of spray.
	www.aaafoundation.org /multimedia/index.cfm?button=splashspray (575 words)

	Two-Cylinder Magazine
		This configuration was replaced by later Utility tractors.
		Long and low, the “40” U was an ideal tractor for orchard, grove, and vineyard work, along with general farm chores, and for road-mowing and maintenance duties.
		In 1958, the “320” Series Tractors were changed to a “slant-steer” design, with the steering wheel angled for better operator comfort and convenience.
	www.two-cylinder.com /may05_pg2b.htm (805 words)

	International rolls out 5900i 4X2 tractor
		The company said the tractor requires no additional reinforcing to achieve the durability needed to satisfy customer demand, which it said is a unique feature of the severe-service market.
		The tractor also features the same interiors introduced in March with the 5000i Series.
		The tractor is equipped with a Cummins ISM engine boasting 350 horsepower and 1350 lbs.-ft torque.
	fleetowner.com /news/fleet_international_rolls_tractor (267 words)

	Barling XNBL-1 -- Chapter 1 (Site not responding. Last check: 2007-11-03)
		Four of the engines were in tractor configuration, placed in mounts attached by struts underneath the middle wing.
		Two more engines were placed in pusher configuration, mounted behind the inner tractor engines.
		The box-like tail had a biplane horizontal tailplane configuration and had four separate rudders.
	www.csd.uwo.ca /~pettypi/elevon/baugher_us/nbl-1-01.html (411 words)

	Date of Meeting:
		Before reviewing the bids for the tractor and trailers it is important to note that the balance of this project will be used for the specialized equipment for the trailers.
		Once the trailers are configured to store the equipment the process of bringing the units on line will begin.
		The purpose of having two separate trailers is to eliminate the possibility of contaminating the rescue equipment when responding to hazardous materials incidents as well as to reduce the overall length and weight of the trailers.
	www.stillwater.org /cc042301/cc0185.htm (847 words)

	Airplane Model Performance Analysis (Site not responding. Last check: 2007-11-03)
		The following is an example of how it is possible to analyze the performance of a given aerodynamic configuration using a $3.00 bag of bulk balsa and ZAP glue from Hobby Shack.
		The configuration in question was a pusher canard.
		First, the best possible canard configuration had to be selected and the list of the available options, including swept and straight-tapered wings as well as rudder placement - out on the wing tip or closer inboard.
	www.kulikovair.com /Models.htm (341 words)

	For Challenger tractors
		Smith says the standard gauge Challenger tractor, which was introduced in 1994, was the first to offer the benefits of rubber tracks for row-crop applications.
		“This is still the most commonly found configuration in the field and is ideal for many of the common row spacings,” he says.
		Track spacing, also referred to as gauge spacing, is the distance between the centers of the left and right hand drive wheels on a rubber-belted ag tractor.
	southeastfarmpress.com /mag/farming_challenger_tractors/index.html (339 words)

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