FACTOID # 22: South Dakota has the highest employment ratio in America, but the lowest median earnings of full-time male employees.
 
 Home   Encyclopedia   Statistics   States A-Z   Flags   Maps   FAQ   About 
   
 
WHAT'S NEW
 

SEARCH ALL

FACTS & STATISTICS    Advanced view

Search encyclopedia, statistics and forums:

 

 

(* = Graphable)

 

 


Encyclopedia > Caterpillar D9
Caterpillar D9 - General Characteristics
Engineering Role: Heavy bulldozer
Propulsion: Caterpillar tracks
Engine model: CAT C18 ACERT (D9T)
3408 HEUI (D9R)
Gross power: 346 kW (464 hp) D9T
354 kW (474 hp) D9R
Flywheel power: 306 kW (410 hp) D9T
306 kW (410 hp) D9R
280 kW (375 hp) D9N
343 kW (460 hp) D9L
Operation Weight: 48,784 kg (107,550 lb)
Length: 8.1 m
Width: 4 m (blade)
Height: 4 m
Speed: 11.9 km/h (forward)
14.7 km/h (reverse)
Blade capacity: 13.5 m³ (17.7 yd³) 9 SU blade
16.4 m³(21.4 yd³) 9 U blade

The Caterpillar D9 is a large track-type tractor designed and manufactured by Caterpillar Inc. Image File history File links Download high resolution version (1812x1419, 561 KB) Summary CAT D9L bulldozer Licensing File links The following pages link to this file: Caterpillar D9 ... An excavator. ... A Caterpillar D10N bulldozer at work A bulldozer is a very powerful crawler (caterpillar tracked tractor) equipped with a blade. ... U.S. M60 Patton tank. ... The kilowatt (symbol: kW) is a unit for measuring power, equal to one thousand watts. ... hp, see HP (disambiguation) The horsepower (hp) is the name of several non-metric units of power. ... The U.S. National Prototype Kilogram, which currently serves as the primary standard for measuring mass in the U.S. It was assigned to the United States in 1889 and is periodically recertified and traceable to the primary international standard, The Kilogram, held at the Bureau International des Poids et... The pound (abbreviations: lb or, sometimes in the United States, #) is a unit of mass (called weight in everyday parlance) in a number of different systems, including English units, Imperial units, and United States customary units. ... The metre (American English:meter) is a measure of length. ... Kilometre per hour (American spelling: kilometer per hour) is a unit of both speed (scalar) and velocity (vector). ... Caterpillar Inc. ...


Though it comes in many configurations it is usually sold as a bulldozer equipped with a detachable large blade and a rear ripper attachment. A Caterpillar D10N bulldozer at work A bulldozer is a very powerful crawler (caterpillar tracked tractor) equipped with a blade. ...


The D9, with 354 kW (474 hp) of gross power and an operating weight of 49 tons, is in the upper end, but not the heaviest, of Caterpillar's track-type tractors, which range in size from the D3 57 kW (77 hp), 8 tons, to the D11 698 kW (935 hp), 104 tons. The kilowatt (symbol: kW) is a unit for measuring power, equal to one thousand watts. ... The horsepower (hp) is the name of several non-metric units of power. ... The Caterpillar D-11 series of tracked-type tractors are among the largest conventional bulldozers in the world, second to Komatsu D575. ... A tonne or metric ton (symbol t), sometimes referred to as a metric tonne, is a measurement of mass equal to 1,000 kilograms. ...


The size, durability, reliability, and low operating costs have made the D9 one of the most popular large track-type tractors in the world, with the Komatsu D275A as one of its most direct competitors. Komatsu Limited (formally 株式会社小松製作所, commonly コマツ) (TYO: 6301) is a Japanese company on the Nikkei 225 index that manufactures construction and mining equipment, silicon wafers, lasers, and thermoelectric modules. ...

Contents

Engineering and technical description

D9 early model
CAT D9L, the first D9 model to employ the "high drive" configuration.

The D9 is a series of heavy tracked-type tractors, propelled by Caterpillar tracks and usually used as bulldozers. The D9 has undergone several generations of engineering enhancements. Each new generation is denoted with an English letter added to "D9". Until the introducing of the D10 in the 1980s, the D9 was the largest conventional CAT dozer. The D9L was the first variation of the D9 to employ "High-Drive" design in which the driving wheel is located above the track wheels, and not in the same row. The High-Drive gives the "belly pan" more ground clearance. The current versions are the D9R and the D9T models, but older models such as the D9N and D9L are still common. The L, N, R and T models of the D9 are visually very similar, differing primarily in the design of their internal systems. The D9T main difference from the D9R is the installment of the new Cat C18 ACERT engine. The D9L was probably the most powerful D9 in history, with flywheel power of 460 hp. Download high resolution version (2560x1920, 2290 KB) Wikipedia does not have an article with this exact name. ... Download high resolution version (2560x1920, 2290 KB) Wikipedia does not have an article with this exact name. ... Image File history File links Download high resolution version (1024x768, 195 KB) Summary CAT D9L bulldozer Licensing File links The following pages link to this file: Caterpillar D9 ... Image File history File links Download high resolution version (1024x768, 195 KB) Summary CAT D9L bulldozer Licensing File links The following pages link to this file: Caterpillar D9 ... U.S. M60 Patton tank. ... A Caterpillar D10N bulldozer at work A bulldozer is a very powerful crawler (caterpillar tracked tractor) equipped with a blade. ... On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotives pistons (or turbine, in the case of a steam turbine locomotive). ... An engine in the broadest sense, is something that produces an output effect from a given input. ...


The D9's primary working tools are the blade, affixed to the front and controlled by 6 hydraulic arms, and the optional ripper, which can be attached to the back. The blade is mainly intended for earthmoving and bulk material handling: pushing up sand, dirt and rubble. It also can be used to push other heavy equipment such as earthmoving scraper pans, and in military applications, main battle tanks. The dozer blade usually comes in 3 varieties: A blade is the flat part of a tool or weapon that normally has a cutting edge and/or pointed end typically made of a metal, most recently, steel intentionally used to cut, stab, slice, throw, thrust, or strike an animate or inainimate object. ... Hydraulics is a branch of science and engineering concerned with the use of liquids to perform mechanical tasks. ... Ripper may refer to: Jack the Ripper, a pseudonym given to an unidentified serial killer (or killers) active in the largely impoverished Whitechapel area and adjacent districts of London in the latter half of 1888. ... The US M1A1 Abrams tank is a typical modern main battle tank. ... A blade is the flat part of a tool or weapon that normally has a cutting edge and/or pointed end typically made of a metal, most recently, steel intentionally used to cut, stab, slice, throw, thrust, or strike an animate or inainimate object. ...

  1. A Straight Blade ("S-Blade") which is short and has no lateral curve, no side wings, and can be used for fine grading.
  2. A Universal Blade ("U-Blade") which is tall and very curved, and has large side wings to carry more material.
  3. A "S-U" combination blade which is shorter, has less curvature, and smaller side wings. This blade is typically used for pushing piles of large rocks, such as at a quarry.

Like many other bulldozers, the D9 can be fitted with different blades (such as size-9 SU blade and Universal blade) or other devices such as mineplows. “Minefield” redirects here. ...


The rear ripper is intended for use in loosening rocky ground and ripping out larger stones. It can also break frozen ground and excavate small ditches. The ripper can be replaced with a multi-shank ripper, allowing the bulldozer to comb the ground.


The size, power and weight of the larger track-type tractors dictate that they are used primarily for major projects. The D9 is most commonly found in use in construction, forestry, mining, waste, and quarry operations.


Military applications

See also: Armored bulldozer
An armored IDF Caterpillar D9R bulldozer, nicknamed "דובי" (Teddy bear) in Israel.
Its armor allows it to work under heavy fire.

Caterpillar Inc. does not manufacture a military version of the D9 per se, but the attributes that make the D9 popular for major construction projects make it desirable for military applications as well, and in this role - with Israeli modifications and armor - it has been particularly effective for the Israel Defense Forces (IDF) and later for the United States armed forces (the Marine Corps and the US Army) in Iraq.[1] An armored Caterpillar D9 bulldozer used by the IDF. Armored bulldozers are a standard tool of combat engineering battalions, and the Israeli Defence Forces has gained notoriety for their use of armored bulldozers for urban warfare in the Al-Aqsa Intifada. ... Image File history File links Metadata No higher resolution available. ... Image File history File links Metadata No higher resolution available. ... The Israel Defense Forces (IDF) (Hebrew: צבא ההגנה לישראל Tsva Ha-Haganah Le-Yisrael ([Army] Force [for] the Defense of Israel), often abbreviated צהל Tsahal, alternative English spelling Tzahal, is the name of Israels armed forces... Caterpillar Inc. ... A Caterpillar D10N bulldozer at work A bulldozer is a very powerful crawler (caterpillar tracked tractor) equipped with a blade. ... This article does not cite any references or sources. ... Caterpillar Inc. ... Emblem of the IDF The Israel Defense Forces are part of the Israeli Security Forces. ... The armed forces of the United States of America consist of the United States Army United States Navy United States Air Force United States Marine Corps United States Coast Guard Note: The United States Coast Guard has both military and law enforcement functions. ... United States Marine Corps Emblem The United States Marine Corps (USMC) is the second smallest of the five branches of the United States armed forces, with 170,000 active and 40,000 reserve Marines as of 2002. ... The United States Army is the largest branch of the armed forces of the United States. ...


The Israeli Engineering Corps used armored versions of the D9L, D9N and D9R to combat Palestinian terrorists'clear booby-trapped areas, open routes, rescue stuck armored fighting vehicles and build sand mounds. [citation needed] During the Al Aqsa Intifada D9 bulldozers were used to demolish alleged terrorists' houses under fire, as the dozers withstood massive IEDs (some of 200kg and even 500kg of explosives) and even deflected RPG rounds. [2] The armored D9 bulldozers were cited by experts as one of the key factors for the relatively low casualties of the IDF in urban warfare. [3] However, while Israel saw the utilization of bulldozers as a security necessity, it drew controversy for the great destruction it caused to the Palestinians, especially in Rafah and in Jenin (during Operation Defensive Shield). The Israeli Engineering Corps are the combat engineering forces of צהל - the Israeli Defence Forces. ... This article is about an antipersonnel trap designed for use against humans. ... An armoured fighting vehicle (AFV) is a military vehicle, equipped with protection against hostile attacks and often mounted weapons. ... The al-Aqsa Intifada is the wave of violence and political conflict that began in September 2000 between Palestinian Arabs and Israelis; it is also called the Second Intifada (see also First Intifada). ... Munitions rigged for an IED discovered by Iraqi police in Baghdad, November 2005. ... RPG is an abbreviation with several different meanings: RPG programming language, is a native programming language for IBMs iSeries servers RPG Life Sciences, is an Indian Pharmaceutical Company Role-playing game, in which players assume the roles of characters and collaboratively create narratives Tabletop role-playing game, also called... Emblem of the IDF The Israel Defense Forces are part of the Israeli Security Forces. ... Urban warfare is a modern warfare conducted in urban areas such as towns and cities. ... Rafah (Arabic: رفح Hebrew: רפיח) is a town in the Gaza Strip, on the Egyptian border, and a nearby town on the Egyptian side of the border, on the Sinai Peninsula. ... It has been suggested that Anem be merged into this article or section. ... Combatants  Israel (Israel Defense Forces) Fatah (Al-Aqsa Martyrs Brigades & Tanzim) Hamas Palestinian Islamic Jihad Palestinian security forces Commanders Aluf Itzhak Eitan (Central commander) Strength Golani Brigade, Nahal Brigade, Paratroopers Brigade, 5th Reserve Infantry Brigade, 408th Reserve Infantry Brigade, Jerusalem Brigade(reserve), Shayetet 13, Armor and Engineering forces. ...


Rachel Corrie an American member of the International Solidarity Movement (ISM) had traveled to the Gaza Strip during the Al-Aqsa Intifada. She was died, on March 16, 2003, when she tried to obstruct an Israel Defense Forces (IDF) Caterpillar D9 armoured bulldozer operating in Hai as-Salam, a Palestinian area of Rafah. The ISM says that the Israeli army driver of the bulldozer deliberately ran her over twice while she was trying to prevent the demolition of the home of Samir Nasrallah, a local pharmacist. The IDF's own investigation concluded that she was killed in an accident by a falling debris the bulldozer pushed and that the driver didn't see her.[citation needed] Rachel Corrie Rachel Corrie (April 10, 1979 – March 16, 2003) was an American member of the International Solidarity Movement (ISM) who traveled to the Gaza Strip during the Al-Aqsa Intifada. ... For information on the Polish trade union, see Solidarity. ... March 16 is the 75th day of the year (76th in leap years) in the Gregorian calendar. ... Year 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ...


On February 7, 2006, the Synod of the Church of England decided to divest itself of approximately USD$2.2 million in Caterpillar Inc. shares, property of the Church of England. This was seen as a move to distance itself from the Israeli army's alleged use of the Caterpillar bulldozers to destroy Palestinian homes. is the 38th day of the year in the Gregorian calendar. ... Year 2006 (MMVI) was a common year starting on Sunday (link displays full 2006 calendar) of the Gregorian calendar. ... The General Synod is the title of the governing body of some church organizations. ... The Church of England logo since 1998 The Church of England is the officially established Christian church[1] in England, and acts as the mother and senior branch of the worldwide Anglican Communion, as well as a founding member of the Porvoo Communion. ...


The US army used D9 bulldozers to clear wood in the Vietnam war but after the war it replaced them with smaller and cheaper Caterpillar D7G bulldozers. D7G dozers are still very common in US combat engineering battalions, but there is a resurgent high demand to replace the lighter D7Gs with the newer and more heavily armored D9s. Combatants Republic of Vietnam United States Republic of Korea Thailand Australia New Zealand The Philippines National Front for the Liberation of South Vietnam Democratic Republic of Vietnam People’s Republic of China Democratic Peoples Republic of Korea Strength US 1,000,000 South Korea 300,000 Australia 48,000... It is proposed that this article be deleted, because of the following concern: 1st section is a copyvio of [1], the rest is stats, WP:NOT an indiscriminate collection of information If you can address this concern by improving, copyediting, sourcing, renaming or merging the page, please edit this page... Combat engineers place satchel charges and detonating cord, preparatory to blowing up a railway bridge during the Korean War, 30 July 1950 Combat engineering is the practice of using the knowledge, tools and techniques of engineering in combat. ...


See also

An excavator. ... The Israeli Engineering Corps are the combat engineering forces of צהל - the Israeli Defence Forces. ...

External links

Wikimedia Commons has media related to:

Image File history File links Commons-logo. ... This article or section is missing references or citation of sources. ... The EBG combat engineering vehicle, based on the AMX 30 tank, is used by the engineers of the French Army for a variety of missions. ...

References

  1. ^ Video of US Army / US Marine teams working with civilian contractors from KBR Heavy Equipment Transport, using D9s at Ar Rutbah to build a large defensive berm
  2. ^ The blade that won the battle, Israeli Intelligence Heritage Center (Hebrew)
  3. ^ Urban Warfare and the Lessons of Jenin, Yigal Henkin

  Results from FactBites:
 
Caterpillar faces an intifada (2490 words)
Caterpillar's management responded coolly to the Israel resolution, saying, in a statement, that while the company felt "compassion for all those affected by political strife," it had "neither the legal right nor the means to police individual use" of the equipment it sells.
The D9 and its larger cousin, the D10, are the Israeli military's construction weapon of choice in the country's conflict with the Palestinians, often accompanying other, more traditional, military equipment on raids into Gaza and the West Bank.
The Israeli government is also using Caterpillar bulldozers in the construction of the barrier Israel is building along its border with the West Bank; although the Israeli public is widely supportive of the barrier as a necessary measure to prevent terrorist attacks, Palestinians have bitterly criticized the structure for cutting into their territory.
Caterpillar Inc. Resource Center - facts on caterpillar inc. (798 words)
Caterpillar is one of the companies whose stock is tracked in the Dow Jones Industrial Average.
Caterpillar closing case: caterpillar inc. products and components are manufactured in 42 plants in the United States and 58 plants in Australia, Belgium, Brazil, Canada, England, France, Germany, Hungary, India, Indonesia, Italy, Japan, Mexico, the Netherlands, Northern Ireland, the People's Republic of China, Poland, Russia, South Africa and Sweden.
Caterpillar suffered another long strike in the 1990's, in which the company hired what it termed "permanent replacements" for striking union workers.
  More results at FactBites »

 
 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments

Want to know more?
Search encyclopedia, statistics and forums:

 


Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms, 1022, m