This article or section is written like an advertisement. Please help rewrite this article from a neutral point of view per Wikipedia policy. Mark blatant advertising for speedy deletion with {{db-spam}}. (help, talk)

The Caterpillar D-11 series of tracked-type tractors are among the largest conventional bulldozers in the world, second to Komatsu D575. It comes in two model variations: the standard D11R and the heavier D11R CD. Image File history File links Nuvola_apps_important. ... Shortcut: WP:WIN Wikipedia is an online encyclopedia and, as a means to that end, also an online community. ... Shortcut: WP:NPOV Wikipedia policy is that all articles should be written from a neutral point of view. ... Shortcut: WP:RULES Wikipedia is a collaborative project and its founders and contributors have a common goal: Wikipedia has some policies and guidelines that help us to work toward that common goal. ... Image File history File links Cat_D-11R.jpg Caterpillar D-11R Bulldozer File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... An excavator. ... A Caterpillar D10N bulldozer at work A bulldozer is a very powerful crawler (caterpillar tracked tractor), equipped with a substantial metal plate (known as a blade), used to push large quantities of soil, sand, rubble, etc, during construction work. ... 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. ... Spoked flywheel Flywheel from stationary engine. ... The pound (abbreviations: lb or, sometimes in the United States, #) is a unit of mass in a number of different systems, including various systems of units of mass that formed part of English units, Imperial units, and United States customary units. ... 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 metre or meter is a measure of length. ... Kilometre per hour (American spelling: kilometer per hour) is a unit of both speed (scalar) and velocity (vector). ... A Caterpillar D10N bulldozer at work A bulldozer is a very powerful crawler (caterpillar tracked tractor), equipped with a substantial metal plate (known as a blade), used to push large quantities of soil, sand, rubble, etc, during construction work. ... The Komatsu D575 Superdozer is the largest bulldozer ever built. ...

The D-11 is in the upper end of Caterpillar's track-type tractors, which range in power and size from the D3 with 57 kW (77 hp) of gross power and an operating weight of 8 metric tons, to the D11R CD at 698 kW (935 hp) and 113 metric tons. 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. ... A tonne or metric ton (symbol t), sometimes referred to as a metric tonne, is a measurement of mass equal to 1,000 kilograms. ...

D-11s are primarily used for moving large quantities of material (dirt, rock, aggregate, etc.) short distances in relatively confined places. For example, they are often used in quarries. The size, price, power and weight of the larger track-type tractors dictate that they are used primarily for major projects. The D-11 is most commonly found in use in forestry, mining, and quarry operations.

The D-11s are favored for their power and ability to rip the earth. They are often used for agricultural and rock ripping. The ripper is the long claw-like device on the back of the tractor. Rippers can come singly (single shank) or in groups of two or more (multi shank rippers). Usually, a single shank is preferred for heavy ripping.

Ripping rock allows the ground surface rock to be broken into small, easy to handle and transport rubble which can then be removed so that grading can take place.

Agricultural ripping allows rocky or very hard earth to be broken up so that otherwise unarable land can be put to use in agricultural applications. For example, much of the very best land in the California wine country consists of old lava flows. Ripping shatters the lava, allowing practical agriculture for the wine industry. Hard earth can also be ripped and decompacted to allow the planting of orchards which otherwise could not grow on the land. Official language(s) English Capital Sacramento Largest city Los Angeles Area  Ranked 3rd  - Total 158,302 sq mi (410,000 km²)  - Width 250 miles (400 km)  - Length 770 miles (1,240 km)  - % water 4. ...

The dozer blade on front of the tractor 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. ...

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.

The nearest direct competitor to the Caterpillar D-11 is the Komatsu D-475. The Cat can be distinguished from the Komatsu by the elevated drive sprocket or "High Drive" system which results in a triangular, rather than oval, shaped caterpillar track. D475 is the second biggest bulldozer in the Komatsu range, only after the massive D575. ... U.S. M60 Patton tank. ...

See also

• Bulldozer
• Caterpillar D9
• Caterpillar D6
• Caterpillar Inc.
• Civil Engineering
• Engineering Vehicles
• Benjamin Holt
• Tractor

A Caterpillar D10N bulldozer at work A bulldozer is a very powerful crawler (caterpillar tracked tractor), equipped with a substantial metal plate (known as a blade), used to push large quantities of soil, sand, rubble, etc, during construction work. ... The Caterpillar D9 is a large track-type tractor designed and manufactured by Caterpillar Inc. ... The Caterpillar D6 track-type tractor is a medium bulldozer manufactured by Caterpillar Inc. ... Caterpillar Inc. ... The Falkirk Wheel in Scotland. ... An excavator Engineering vehicles are heavy-duty vehicles, specially designed for executing engineering tasks. ... Benjamin_Holt. ...

External links

• Caterpillar D-Series Track-Type Tractors - Official Caterpillar website
• Short review of large dozers