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34-540: The show was hosted by four youths in auto racing attire with chassis on their shoulders. They included a boy, 4U (Mark Hennessy) and a girl, Euphoria, who were the "good kids" of the show, and they taught lessons to the reckless Fast Lane, a fiery-haired teen with a flame-decorated chassis on his shoulders and the chubby, impressionable Couch Potato. These sketches were under five minutes in length, and their lessons were restated by Bob Keeshan (as Captain Kangaroo ), and

68-493: A tank chassis and have special attachments in order to breach obstacles. Such attachments may include dozer blades, mine rollers, cranes etc. An example of an engineering vehicle of this kind is a bridgelaying tank, which replaces the turret with a segmented hydraulic bridge . The Hobart's Funnies of the Second World War were a wide variety of armoured vehicles for combat engineering tasks. They were allocated to

102-583: A 24-ton tracked load capacity bridge (Class 24) that could span gaps of 30 feet. However, it did not see service in the British armed forces, and all vehicles were passed onto Allied forces such as Australia and Czechoslovakia. A Class 30 design superseded the Class 24 with no real re-design, simply the substitution of the Covenanter tank with a suitably modified Valentine . As tanks in the war got heavier,

136-406: A heavy, rigid cabinet, while in other designs such as modern computer cases , lightweight covers or panels are attached to the chassis. The combination of chassis and outer covering is sometimes called an enclosure . In firearms, the chassis is a bedding frame on long guns such as rifles to replace the traditionally wooden stock , for the purpose of better accurizing the gun. The chassis

170-673: A metal-on-metal bearing surface that has reduced shifting potential under the stress of recoil . A barreled action bedded into a metal chassis would theoretically operate more consistently during repeated firing, resulting in better precision . With the increasing availability of CNC machining , chassis have become more affordable and sophisticated as well as gained increasing popularity as these types of chassis can be expanded to accommodate customizable "furniture" ( buttstock , pistol grip , etc.) and rail interface systems that provide mounting points for various accessories. Military engineering vehicles A military engineering vehicle

204-465: A new bridge capable of supporting them was developed. A heavily modified Churchill used a single-piece bridge mounted on a turret-less tank and was able to lay the bridge in 90 seconds; this bridge was able to carry a 60-ton tracked or 40-ton wheeled load. Hobart's Funnies were a number of unusually modified tanks operated during the Second World War by the 79th Armoured Division of

238-411: Is a stub . You can help Misplaced Pages by expanding it . Chassis A chassis ( US : / ˈ tʃ æ s i / , UK : / ˈ ʃ æ s i / ; plural chassis /- i z / from French châssis [ʃɑsi] ) is the load -bearing framework of a manufactured object, which structurally supports the object in its construction and function. An example of a chassis is a vehicle frame ,

272-775: Is a vehicle built for construction work or for the transportation of combat engineers on the battlefield. These vehicles may be modified civilian equipment (such as the armoured bulldozers that many nations field) or purpose-built military vehicles (such as the AVRE ). The first appearance of such vehicles coincided with the appearance of the first tanks, these vehicles were modified Mark V tanks for bridging and mine clearance. Modern military engineering vehicles are expected to fulfill numerous roles such as; bulldozer , crane , grader , excavator , dump truck , breaching vehicle, bridging vehicle, military ferry, amphibious crossing vehicle, and combat engineer section carrier. A Heavy RE tank

306-420: Is no set template for what such a vehicle will look like, yet likely features include a large dozer blade or mine ploughs, a large caliber demolition cannon, augers, winches, excavator arms and cranes or lifting booms. These vehicles are designed to directly conduct obstacle breaching operations and to conduct other earth-moving and engineering work on the battlefield. Good examples of this type of vehicle include

340-401: Is typically a modified tank hull converted to carry a bridge into battle in order to support crossing ditches, small waterways, or other gap obstacles. Another type of bridging vehicle is the truck launched bridge. The Soviet TMM bridging truck could carry and launch a 10-meter bridge that could be daisy-chained with other TMM bridges to cross larger obstacles. More recent developments have seen

374-409: Is usually made from hard metallic material such as aluminium alloy (and less frequently stainless steel , titanium alloy or recently magnesium alloy ) due to metals having superior stiffness and compressive strength compared with wood or synthetic polymer , which are commonly used in conventional rifle stocks. The chassis essentially functions as a more extensive pillar bedding, providing

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408-943: The British Army or by specialists from the Royal Engineers . They were designed in light of problems that more standard tanks experienced during the amphibious Dieppe Raid , so that the new models would be able to overcome the problems of the planned Invasion of Normandy . These tanks played a major part on the Commonwealth beaches during the landings. They were forerunners of the modern combat engineering vehicle and were named after their commander, Major General Percy Hobart . Hobart's unusual, specialized tanks, nicknamed "funnies", included: In U.S. Forces, Sherman tanks were also fitted with dozer blades, and anti-mine roller devices were developed, enabling engineering operations and providing similar capabilities. Post war,

442-405: The intermodal trucking industry, a chassis is a type of semi-trailer onto which a cargo container can be mounted for road transport. In an electronic device (such as a computer ), the chassis consists of a frame or other internal supporting structure on which the circuit boards and other electronics are mounted. In some designs, such as older ENIAC sets, the chassis is mounted inside

476-653: The CEVs or AEVs described above, these vehicles are designed to conduct earth-moving work on the battlefield and generally be anti-tank explosive proof. These vehicles have greater high speed mobility than traditional heavy equipment and are protected against the effects of blast and fragmentation. Good examples are the American M9 ACE and the UK FV180 Combat Engineer Tractor . These vehicles are equipped with mechanical or other means for

510-609: The Scissors Assault Bridge. This concept was realised by Captain SA Stewart RE with significant input from a Mr DM Delany, a scientific civil servant in the employ of the EBE. MB Wild & Co, Birmingham, also developed a bridge that could span gaps of 26 feet using a complex system of steel wire ropes and a traveling jib, where the front section was projected and then attached to the rear section prior to launching

544-518: The U.S. M113 APC , IDF Puma , Nagmachon , Husky, and U.S. M1132 ESV (a Stryker variant). One of the major tasks of military engineering is crossing major rivers. Several military engineering vehicles have been developed in various nations to achieve this task. One of the more common types is the amphibious ferry such as the M3 Amphibious Rig . These vehicles are self-propelled on land, they can transform into raft type ferries when in

578-544: The U.S. defines the design standards of chassis and body conversions. An armoured fighting vehicle 's hull serves as the chassis and comprises the bottom part of the AFV that includes the tracks , engine, driver's seat, and crew compartment. This describes the lower hull, although common usage might include the upper hull to mean the AFV without the turret . The hull serves as a basis for platforms on tanks , armoured personnel carriers , combat engineering vehicles , etc. In

612-747: The UK Trojan AVRE , the Russian IMR, and the US M728 Combat Engineer Vehicle . Although the term "armoured engineer vehicle" is used specifically to describe these multi-purpose tank based engineering vehicles, that term is also used more generically in British and Commonwealth militaries to describe all heavy tank based engineering vehicles used in the support of mechanized forces. Thus, "armoured engineer vehicle" used generically would refer to AEV, AVLB, Assault Breachers, and so on. Lighter and less multi-functional than

646-619: The breached obstacle is still covered by enemy observation and fire, and then purpose built breaching vehicles will create additional lanes for following forces. Good examples of breaching vehicles include the US M1150 assault breacher vehicle , the UK Aardvark JSFU , and the Singaporean Trailblazer . Several types of military bridging vehicles have been developed. An armoured vehicle-launched bridge (AVLB)

680-408: The breaching of man made obstacles. Common types of breaching vehicles include mechanical flails , mine plough vehicles, and mine roller vehicles. In some cases, these vehicles will also mount mine-clearing line charges . Breaching vehicles may be either converted armoured fighting vehicles or purpose built vehicles. In larger militaries, converted AFV are likely to be used as assault breachers while

714-584: The bridge with the tank and used hydraulic power generated by the tank's engine to maneuver the bridge into place. For mine clearance the tanks were equipped with 2 ton rollers . Between the wars various experimental bridging tanks were used to test a series of methods for bridging obstacles and developed by the Experimental Bridging Establishment (EBE). Captain SG Galpin RE conceived a prototype Light Tank Mk V to test

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748-501: The bridge. This system had to be abandoned due to lack of success in getting it to work, however the idea was later used successfully on the Beaver Bridge Laying Tank . Once World War Two had begun, the development of armoured vehicles for use by engineers in the field was accelerated under Delaney's direction. The EBE rapidly developed an assault bridge carried on a modified Covenanter tank capable of deploying

782-408: The conversion of AVLB and truck launched bridge with launching systems that can be mounted on either tank or truck for bridges that are capable of supporting heavy main battle tanks. Earlier examples of bridging vehicles include a type in which a converted tank hull is the bridge. On these vehicles, the hull deck comprises the main portion of the tread way while ramps extend from the front and rear of

816-696: The form of traditional civilian equipment designed and built to unique military specifications. These vehicles typically sacrifice some depth of capability from civilian models in order to gain greater speed and independence from prime movers. Examples of this type of vehicle include high speed backhoes such as the Australian Army's High Mobility Engineering Vehicle (HMEV) from Thales or the Canadian Army's Multi-Purpose Engineer Vehicle (MPEV) from Arva. The main article for civilian heavy equipment is: Heavy equipment (construction) Typically based on

850-450: The frames near the end of the line. An underbody (sometimes referred to as " coachwork "), which is usually not necessary for the integrity of the structure, is built on the chassis to complete the vehicle. For commercial vehicles , a rolling chassis consists of an assembly of all the essential parts of a truck without the body to be ready for operation on the road. A car chassis will be different from one for commercial vehicles because of

884-415: The heavier loads and constant work use. Commercial vehicle manufacturers sell "chassis only", "cowl and chassis", as well as " chassis cab " versions that can be outfitted with specialized bodies. These include motor homes , fire engines , ambulances , box trucks , etc. In particular applications, such as school buses , a government agency like National Highway Traffic Safety Administration (NHTSA) in

918-558: The platform of a main battle tank, these vehicles go by different names depending upon the country of use or manufacture. In the US the term "combat engineer vehicle (CEV)" is used, in the UK the terms " Armoured Vehicle Royal Engineers (AVRE)" or Armoured Repair and Recovery Vehicle (ARRV) are used, while in Canada and other commonwealth nations the term "armoured engineer vehicle (AEV)" is used. There

952-570: The underpart of a motor vehicle , on which the body is mounted; if the running gear such as wheels and transmission, and sometimes even the driver's seat, are included, then the assembly is described as a rolling chassis . In the case of vehicles, the term rolling chassis means the frame plus the "running gear " like engine , transmission , drive shaft , differential , and suspension . The "rolling chassis" description originated from assembly production when an integrated chassis "rolled on its own tires" just before truck bodies were bolted to

986-500: The value of the combat engineering vehicles had been proven, and armoured multi-role engineering vehicles have been added to the majority of armoured forces. Military engineering can employ a wide variety of heavy equipment in the same ways to how this equipment is used outside the military. Bulldozers , cranes , graders , excavators , dump trucks , loaders , and backhoes all see extensive use by military engineers. Military engineers may also use civilian heavy equipment which

1020-699: The vehicle to allow other vehicles to climb over the bridging vehicle and cross obstacles. An example of this type of armoured bridging vehicle was the Churchill Ark used in the Second World War. Another type of CELLs are armoured fighting vehicles which are used to transport sappers ( combat engineers ) and can be fitted with a bulldozer 's blade and other mine-breaching devices. They are often used as APCs because of their carrying ability and heavy protection. They are usually armed with machine guns and grenade launchers and usually tracked to provide enough tractive force to push blades and rakes. Some examples are

1054-671: The water, and often multiple vehicles can connect to form larger rafts or floating bridges . Other types of military ferries, such as the Soviet Plavayushij Transportyor - Srednyj , are able to load while still on land and transport other vehicles cross country and over water. In addition to amphibious crossing vehicles, military engineers may also employ several types of boats. Military assault boats are small boats propelled by oars or an outboard motor and used to ferry dismounted infantry across water. Most CEVs are armoured fighting vehicles that may be based on

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1088-560: The youths also did commercial bumpers. While this material was originally credited, no resources have made note of who was involved, and it is omitted from rerun packages. Each 90-minute show contained three half-hour cartoons from the DIC catalogue. This article about a children's television series produced in the United States is a stub . You can help Misplaced Pages by expanding it . This animated television series–related article

1122-475: Was developed shortly after World War I by Major Giffard LeQuesne Martel RE. This vehicle was a modified Mark V tank. Two support functions for these Engineer Tanks were developed: bridging and mine clearance. The bridging component involved an assault bridge, designed by Major Charles Inglis RE, called the Canal Lock Bridge, which had sufficient length to span a canal lock . Major Martel mated

1156-567: Was modified for military applications. Typically, this involves adding armour for protection from battlefield hazards such as artillery, unexploded ordnance, mines, and small arms fire. Often this protection is provided by armour plates and steel jackets. Some examples of armoured civilian heavy equipment are the IDF Caterpillar D9 , American D7 TPK, Canadian D6 armoured bulldozer , cranes, graders, excavators, and M35 2-1/2 ton cargo truck . Militarized heavy equipment may also take on

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