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56-520: The Pinzgauer is a family of high-mobility all-terrain 4WD (4×4) and 6WD (6×6) military utility vehicles. The vehicle was originally developed in the late 1960s and manufactured by Steyr-Daimler-Puch of Graz , Austria , and was named after the Pinzgauer , an Austrian breed of cattle. They were most recently manufactured at Guildford in Surrey , England by BAE Systems Land & Armaments . It

112-502: A reduction drive . Some vehicles, like the Bv206 in the picture on the right, also have torque converters to reduce the gearing. SUVs are built with higher ground clearance , for off-road use, and thus have a higher center of gravity , therefore increasing the risk of rollover. When an SUV turns, the vehicle's mass resists the turn. This carries the SUV's weight forward, thus allowing

168-401: A common shaft. This forces both wheels to turn in unison, regardless of the traction (or lack thereof) available to either wheel individually. When this function is not required, the differential can be "unlocked" to function as a regular open differential. Locking differentials are mostly used on off-road vehicles, to overcome low-grip and variable grip surfaces. An undesirable side-effect of

224-538: A few minor changes to the design of the Pinzgauer II: The second generation motor vehicle went through several minor revisions through its life, unlike the first generation which used the same design throughout production. The first second-generation Pinzgauers were designated P80 (1980). It went through a minor revision in 1990 ( P90 ), and 1993 ( P93 ), when an intercooler version of the VW engine ( D24TIC )

280-555: A light utility vehicle (LUV), a quad bike or quad (if it has four wheels), as defined by the American National Standards Institute (ANSI), is a vehicle that travels on low-pressure tires, has a seat that is straddled by the operator, and has handlebars. As the name implies, it is designed to handle a wider variety of terrain than most other vehicles. It is street-legal in some countries, but not in most states, territories and provinces of Australia,

336-515: A mission support vehicle, and a standard utility vehicle. Many Pinzgauers were sold to military forces (initially Austrian and Swiss) to be used as non-tactical utility vehicles. Typical military roles are as general-purpose utility truck, command vehicles, troop carrier, ambulance , and tow vehicle. Roles very similar to other civilian sourced vehicles like Land Rover in the UK, the Blazer CUCV in

392-412: A pointer which constantly pointed to the south, no matter how the chariot turned as it travelled. It could therefore be used as a type of compass . It is widely thought that a differential mechanism responded to any difference between the speeds of rotation of the two wheels of the chariot, and turned the pointer appropriately. However, the mechanism was not precise enough, and, after a few miles of travel,

448-494: A regular ("open") differential is that it can send most of the power to the wheel with the lesser traction (grip). In situation when one wheel has reduced grip (e.g. due to cornering forces or a low-grip surface under one wheel), an open differential can cause wheelspin in the tyre with less grip, while the tyre with more grip receives very little power to propel the vehicle forward. In order to avoid this situation, various designs of limited-slip differentials are used to limit

504-553: A study conducted in the United States , SUVs have twice the fatality rate of passenger cars and have nearly triple the fatality rate in rollover accidents. In the United States, light trucks (including SUVs ) represent 36 percent of all registered vehicles. They are involved in about half of the fatal two-vehicle crashes with passenger cars, and 80 percent of these fatalities are to occupants of passenger cars. In

560-454: A type of mechanical analogue computer, were used from approximately 1900 to 1950. These devices used differential gear trains to perform addition and subtraction. The Mars rovers Spirit and Opportunity (both launched in 2004) used differential gears in their rocker-bogie suspensions to keep the rover body balanced as the wheels on the left and right move up and down over uneven terrain. The Curiosity and Perseverance rovers used

616-405: Is a gear train with three drive shafts that has the property that the rotational speed of one shaft is the average of the speeds of the others. A common use of differentials is in motor vehicles , to allow the wheels at each end of a drive axle to rotate at different speeds while cornering. Other uses include clocks and analogue computers . Differentials can also provide a gear ratio between

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672-990: Is affectionately called "Piglet" due to its design. The US Army purchased 20 Turbo Diesel 718M during the early 1990s, imported for the Army’s Delta Force as a deep reconnaissance platform. They were used in the 1991 Gulf War as well as the 2003 Iraq war , and eventually phased out at 2010–2011. The Pinzgauer was marketed to the civilian marketplace worldwide for use as campers, farm trucks, ambulances, fire-trucks, and rescue vehicles. Likewise, many ended up being used as tourist vans due to their large passenger capacity and stable, reliable platform. Pinzgauers have been used as tourist transports in Africa, Australia, South America, Hawaii, and other exotic locales. Some are still in use today. Pinzgauers were marketed to- and used extensively by energy companies for oil exploration purposes. A few Pinzgauers were used for off-road racing, including

728-490: Is available in both four-wheel drive (4×4) (model 710 ) and six-wheel drive (6×6) (model 712 ) versions. The Pinzgauer was designed to be reliable and easy to fix; it is shipped with an air-cooled petrol engine with dual-Zenith 36 mm NDIX carburetors . The engine in the Pinzgauer was specifically designed for the vehicle; it has more than one oil pump so that the engine will not get starved of oil no matter how

784-554: Is driven by a pinion gear connected to the transmission. The functions of this design are to change the axis of rotation by 90 degrees (from the propshaft to the half-shafts) and provide a reduction in the gear ratio . The components of the ring-and-pinion differential shown in the schematic diagram on the right are: 1. Output shafts ( axles ) 2. Drive gear 3. Output gears 4. Planetary gears 5. Carrier 6. Input gear 7. Input shaft ( driveshaft ) An epicyclic differential uses epicyclic gearing to send certain proportions of torque to

840-411: Is easily accommodated when the wheels are not connected , however it becomes more difficult for the drive wheels , since both wheels are connected to the engine (usually via a transmission). Some vehicles (for example go-karts and trams ) use axles without a differential, thus relying on wheel slip when cornering. However, for improved cornering abilities, many vehicles use a differential, which allows

896-506: The Sierra Club , publish and encourage appropriate trail ethics . ORVs have also been criticized for producing more pollution in areas that might normally have none. In addition to noise pollution that can cause hearing impairment and stress in wildlife, according to the U.S. Forest Service , old-style two-stroke engines (no longer a component of new off-road vehicles, although some are still in use) "emit about 20 to 33 percent of

952-552: The United States , the number of ORV users since 1972 has climbed sevenfold—from five million to 36 million in 2000. Government policies that protect wilderness but also allow recreational ORVs, have been the subject of some debate within the United States and other countries. All trail and off-trail activities impact natural vegetation and wildlife, which can lead to erosion , invasive species , habitat loss , and ultimately, species loss decreasing an ecosystem 's ability to maintain homeostasis . ORVs cause greater stress to

1008-530: The pavement , off-road vehicles need several characteristics: They need to have a low ground pressure , so as not to sink into soft ground, they need a lot of ground clearance , to not get stuck on obstacles, and they need to keep their wheels or tracks on the ground, so as not to lose traction. Wheeled vehicles accomplish this by having a suitable balance of large or additional tires, combined with tall and flexible suspension . Tracked vehicles accomplish this by having wide tracks and flexible suspension on

1064-588: The "Vector" briefly entered service in the British Army in early 2007, as part of an effort to provide safer patrol vehicles for troops in Afghanistan . The 6×6 Vector PPV (Protected Patrol Vehicle) would, according to the manufacturer, "Build on the existing proven design, with enhancements that will include a combination of physical protection, as well as the use of sophisticated electronic counter measures to maximise survivability while on patrol". However,

1120-449: The "correct" time, so an ordinary clock would frequently have to be readjusted, even if it worked perfectly, because of seasonal variations in the equation of time. Williamson's and other equation clocks showed sundial time without needing readjustment. Nowadays, we consider clocks to be "correct" and sundials usually incorrect, so many sundials carry instructions about how to use their readings to obtain clock time. Differential analysers ,

1176-574: The 1990s, as off-road vehicles became more popular, more companies started to produce their own line of what became known as Sport Utility Vehicles. Around this time, manufacturers began to add more features to allow off-road vehicles to compete in the consumer market with regular vehicles. Over time, this evolved into what we call the SUV today. It also evolved into the newer crossover vehicle , where utility and off-road capability were sacrificed for better on-road handling and luxury. To be able to drive off

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1232-580: The Pinzgauer, which was proving to be vulnerable to mines and improvised explosive devices in Afghanistan . Production ceased around 2009. Development work (done in the UK) on a planned Pinzgauer II was evaluated by a BAE subsidiary in Benoni, Gauteng , South Africa but no vehicle was ever made. Being both unarmed and unarmoured, the Pinzgauer was designed for mobility and general utility functions rather than combat or reconnaissance roles. The original prototype

1288-493: The Pinzgauer. The Pinzgauer is now owned and produced by BAE Systems Land Systems in Guildford, Surrey, however production has ceased. The four-wheel drive (4×4) model is now called a 716 , and the six-wheel drive (6×6) model is now called a 718 . The same letter body type designations apply. The new 716 has the same payload rating as the old 712, and the new 718 also has a similarly higher payload capacity. There were

1344-621: The Sun and Moon position pointers. The ball was painted black and white in hemispheres, and graphically showed the phase of the Moon at a particular point in time. An equation clock that used a differential for addition was made in 1720. In the 20th century, large assemblies of many differentials were used as analogue computers , calculating, for example, the direction in which a gun should be aimed. Chinese south-pointing chariots may also have been very early applications of differentials. The chariot had

1400-613: The US, and the Mercedes G in many European countries. Yugoslavia bought 3975 Pinzgauers from 1971 in all variants 4x4 and 6x6. The New Zealand Army has purchased 321 Pinzgauer vehicles in 8 variants to fulfill the Light Operational Vehicle (LOV) role. The Malaysian Army purchased 168 2 Ton 4×4 716 Gun Tractors and 164 2 Ton 6×6 718 Mortar Transporters to replace older Volvo C303 and C304 in their inventories. It

1456-488: The United States, and Canada. By the current ANSI definition, ATVs are intended for use by a single operator, but some ATVs, referred to as tandem ATVs, have been developed for use by the driver and one passenger. The military market for off-road vehicles used to be large, but, since the fall of the Iron Curtain in the 1990s, it has dried up to some extent. The U.S. jeeps , developed during World War II , coined

1512-648: The Vector PPV was found to have unreliable suspension and wheel hubs as well as poor protection against improvised explosive devices . It quickly lost the confidence of field commanders and was withdrawn from service. The Pinzgauer is the basis for the Tactical Ground Station (TGS) element of the Raytheon Systems Limited Airborne Standoff Radar (ASTOR). The TGS comprises two workstation vehicles,

1568-551: The carrier is rotated (by the input torque), the relationship between the speeds of the input (i.e. the carrier) and that of the output shafts is the same as other types of open differentials. Uses of spur-gear differentials include the Oldsmobile Toronado American front-wheel drive car. Locking differentials have the ability to overcome the chief limitation of a standard open differential by essentially "locking" both wheels on an axle together as if on

1624-506: The consumed fuel through the exhaust" and "discharge from two-stroke snowmobile engines can lead to indirect pollutant deposition into the top layer of snow and subsequently into the associated surface and groundwater." In 2002, the United States Environmental Protection Agency adopted emissions standards for all-terrain vehicles that "when fully implemented in 2012... are expected to prevent

1680-408: The dial could be pointing in the wrong direction. The earliest verified use of a differential was in a clock made by Joseph Williamson in 1720. It employed a differential to add the equation of time to local mean time , as determined by the clock mechanism, to produce solar time , which would have been the same as the reading of a sundial . During the 18th century, sundials were considered to show

1736-480: The difference in power sent to each of the wheels. Torque vectoring is a technology employed in automobile differentials that has the ability to vary the torque to each half-shaft with an electronic system; or in rail vehicles which achieve the same using individually motored wheels. In the case of automobiles, it is used to augment the stability or cornering ability of the vehicle. Non-automotive uses of differentials include performing analogue arithmetic . Two of

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1792-480: The differential's three shafts are made to rotate through angles that represent (are proportional to) two numbers, and the angle of the third shaft's rotation represents the sum or difference of the two input numbers. The earliest known use of a differential gear is in the Antikythera mechanism, c. 80 BCE, which used a differential gear to control a small sphere representing the Moon from the difference between

1848-401: The environment than foot traffic alone, and ORV operators who attempt to test their vehicles against natural obstacles can do significantly more damage than those who follow legal trails. Illegal use of off-road vehicles has been identified as a serious land management problem ranked with dumping garbage and other forms of vandalism . Many user organizations, such as Tread Lightly! and

1904-780: The famous Paris to Dakar Rally and the International Rainforest Challenge in Malaysia. Military users include: The Pinzgauer is a highly accomplished off-road vehicle . Its capabilities, in some operational scenarios, are better than that of the Humvee and the Land Rover Defender . Off-road vehicle One of the first modified off-road vehicles was the Kégresse track , a conversion undertaken first by Adolphe Kégresse , who designed

1960-414: The first generation Pinzgauers are equipped with: In 1980, Steyr-Daimler-Puch started development on a second generation Pinzgauer. After six years of research and development , the initial second generation Pinzgauer II rolled off the assembly line in 1986. In 2000, Magna , who bought Steyr-Daimler-Puch , sold its rights to the Pinzgauer to Automotive Technik in the UK who took over production of

2016-401: The front axle and the rear axle in an all-wheel drive vehicle. An advantage of the epicyclic design is that it is relatively compact width (when viewed along the axis of its input shaft). A spur-gear differential has an equal-sized spur gears at each end, each of which is connected to an output shaft. The input torque (i.e. from the engine or transmission) is applied to the differential via

2072-402: The input and output shafts (called the "axle ratio" or "diff ratio"). For example, many differentials in motor vehicles provide a gearing reduction by having fewer teeth on the pinion than the ring gear . Milestones in the design or use of differentials include: During cornering, the outer wheels of a vehicle must travel further than the inner wheels (since they are on a larger radius). This

2128-404: The operator to optimize the engine 's available power while moving slowly through challenging terrain. An internal combustion engine coupled to a standard gearbox often has an output speed too high. The vehicle often has one of two things, either a very low ("granny") first gear (like the all-wheel drive Volkswagen Transporter versions) or an additional gearbox in line with the first, called

2184-468: The original while working for Czar Nicholas II of Russia , between 1906 and 1916. The system uses a caterpillar track with a flexible belt, rather than interlocking metal segments. It can be fitted to a conventional car or truck to turn it into a half-track , suitable for use over rough or soft ground. After the Russian Revolution of 1917 , Kégresse returned to his native France where

2240-470: The release of more than two million tons of air pollution each year—the equivalent of removing the pollution from more than 32 million cars every year." Common commercial vehicles used for off-roading include four-wheel-drive pickup trucks and SUVs such as the Ford F-Series , Jeep Wrangler , and Toyota Land Cruiser , among others. Typically, owners will perform additional modifications to

2296-442: The road wheels. The choice of wheels versus tracks is one of cost and suitability. A tracked drivetrain is more expensive to produce and maintain. Wheeled drivetrains are cheaper and give a higher top speed. A tracked drivetrain has greater off-road capability. Tires play a significant role for any off-road vehicle equipped with wheels, ensuring optimal traction to keep it moving. The off-road tire tread types vary depending on

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2352-418: The rotating carrier. Pinion pairs are located within the carrier and rotate freely on pins supported by the carrier. The pinion pairs only mesh for the part of their length between the two spur gears, and rotate in opposite directions. The remaining length of a given pinion meshes with the nearer spur gear on its axle. Each pinion connects the associated spur gear to the other spur gear (via the other pinion). As

2408-654: The shareholder majority of Steyr-Daimler-Puch offroad vehicles, the rights to build Steyr's Pinzgauers were moved to Automotive Technik Ltd; and subsequently to a branch of BAE Systems. As of 2009, production of Pinzgauers seems to have stalled. The Graz plant has been building the Mercedes-Benz G ;Wagon / Puch G SUVs / offroad cars. The Pinzgauer is one of the most capable all-terrain vehicles ever made. While not as fast on-road (110 kilometres per hour (68  mph )) as an American Humvee , it can carry more troops, and move faster over rough trails. Even

2464-426: The smaller 710M can carry 10 people or two NATO pallets. Both the 4×4 and 6×6 models can tow 5,000 kilograms (11,023  lb ) on road; and 1,500 kilograms (3,307 lb) or 1,800 kilograms (3,968 lb), respectively, off-road. It has a range of over 400 kilometres (249 mi) on one tank of fuel, or nearly 700 kilometres (435 mi) with the optional 125  litre tank. The first generation Pinzgauer

2520-566: The system was used on Citroën cars between 1921 and 1937 for off-road and military vehicles . The Citroën company sponsored several overland expeditions with vehicles crossing North Africa and Central Asia . A huge wheeled vehicle designed from 1937 to 1939 under the direction of Thomas Poulter called Antarctic Snow Cruiser , was intended to facilitate transport in Antarctica . While having several innovative features, it generally failed to operate as hoped under difficult conditions and

2576-547: The terrain type. The most common types of off-road tires are A/T (stands for "All Terrain") and M/T (stands for "Mud Terrain"). While the A/T tires perform excellently on the sand, they are barely usable in the mud. There are also unique Sand Blaster and Mud bogging tires used for the most challenging terrains such as dirt, sand, and even water to maintain traction at extreme angles and high speeds (off-road motorsport ). Most off-road vehicles are fitted with low gearing . This allows

2632-408: The traction from the tires to create a lateral centripetal force as the vehicle continues through the turn. The conflict between the top weight of the SUV's desire to go straight and the friction of the tires on the road causes the bottom of the vehicle to move away and out from under the SUV during a turn. SUVs are more likely to be in rollover accidents than passenger cars . According to

2688-402: The two wheels to rotate at different speeds. The purpose of a differential is to transfer the engine's power to the wheels while still allowing the wheels to rotate at different speeds when required. An illustration of the operating principle for a ring-and-pinion differential is shown below. A relatively simple design of differential is used in rear-wheel drive vehicles, whereby a ring gear

2744-496: The vehicle is oriented. The Pinzgauer has a chassis design which contributes to its high mobility. It has a central tube chassis with a transaxle which distributes the weight more evenly, and keeps the centre of gravity as low as possible. The differentials are all sealed units and require minimal additional lubrication. The Pinzgauer also has portal axles like the Unimog to provide extra clearance over obstacles. The 710 4×4

2800-642: The wheels, tires, suspension, and body to improve their performance off-road. Several decommissioned military vehicles have also been used by civilians, including the Jeep CJ and the AM General Hummer . Some, like the early Land Rovers , were adapted to military use from civilian specifications. Specialized off-road vehicles include Utility terrain vehicles (UTVs), All-terrain vehicles (ATVs), dirt bikes , dune buggies , rock crawlers , and sandrails . An all-terrain vehicle (ATV), also known as

2856-751: The word many people use for any light off-road vehicle. In the U.S., the Jeeps' successor from the mid-1980s was the AM General HMMWV series. The Red Army used the GAZ-61 and GAZ-64 during World War II . The Eastern Bloc used the GAZ-69 and UAZ-469 in similar roles. Vehicles used as the primary transport in an expedition , not for profit, scientific research or personal use. [REDACTED] Media related to Off-road vehicles at Wikimedia Commons Differential (mechanics) A differential

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2912-577: Was developed around 1969 and production began in 1971, as successor of the Steyr-Daimler-Puch Haflinger 700 AP 4×4 light military multi purpose offroad vehicle. The Pinzgauer first generation model (710, 712) was produced until 2000 by Steyr-Daimler-Puch in the city of Graz, Austria. It was, and is in use in many armies around the world like Austria, Switzerland, United Kingdom, Saudi Arabia, Thailand, Albania, and Bolivia. When Austro-Canadian millionaire Frank Stronach took over

2968-543: Was eventually abandoned in Antarctica. Early off-road vehicles, such as the U.S. Jeep Wagoneer and Ford Bronco , the British Range Rover , and the station wagon -bodied Japanese Toyota Land Cruiser , Nissan Patrol , and Suzuki Lj's series were all had bodies similar to those of a station wagon , on a body comparable to that of a light truck , with four-wheel-drive drivetrains . Later, during

3024-459: Was popular amongst military buyers, and continued in production there throughout the rest of the century. In 2000 the rights were sold to Automotive Technik Ltd (ATL) in the UK. ATL was acquired by Stewart & Stevenson Services, Inc. in 2005. In May 2006, Stewart & Stevenson became a subsidiary of the aerospace and defence group Armor Holdings, Inc. In 2007 Armor Holdings was acquired by BAE Systems plc , who discontinued UK production of

3080-490: Was substituted. A more significant engine change was carried out in 2002 when a new Volkswagen Group Turbocharged Direct Injection (TDI) engine was introduced to meet the new Euro3 emissions requirements. The Pinzgauer (or Pinz as it is known to most British soldiers) is more common as a utility vehicle in Royal Artillery units due to its employment as a light gun tractor. A new lightly-armoured version called

3136-549: Was the more popular variant, but the Pinzgauer was designed to have a very capable 6×6 configuration from the start. The rear suspension on the back of the 6×6 712 is designed to provide maximum traction in the most demanding circumstances along with increasing its towing, load carrying, and off-road abilities. During production from 1971 until 1985, 18,349 first-generation 710s and 712s were produced and sold to both civilian and military customers. The most common body types are either "K" (hard-topped) or "M" (soft-topped) types. All

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