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The following kits were available for the basic vehicle: crew compartment armor kit, consisting of a high-hardness steel doors, side body panels, toe panel, firewall, bulletproof windshield and bulletproof side windows, armored radiator, armored fuel tank, top and door kit (waterproof fabric with
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with a capacity of 5,000 kg (11,023 lb) can be mounted at the front of the vehicle if required, and the 2-piece windshield can be removed to provide greater visibility and protect from flying glass fragments. The glass halves are stored in a mounting bracket on the hood until needed
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and the crew armor kit for use in the escort/security role. These trials were completed in 1972. They were then tested by the 2nd
Armored Division. In 1974 they were also tested in the 2nd Armored Reconnaissance Scout Vehicle competition along with a number of vehicles including the original
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again. The passenger compartment is in the center of the vehicle with the driver on the left and the passenger seat to the right. There is space for 0.93 cubic metres (33 cu ft) of cargo behind the passenger seats. The engine and transmission are
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is provided for the rear suspension to limit body roll. Maximum speed is 80-90 mph for vehicles with the 318ci engine, dropping to 67 mph at full load. Acceleration was 12 seconds 0-60 mph time, falling to 10 seconds with the 360ci engine.
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The XR311 is built around a tubular-steel frame safety roll-cage which protects the passenger compartment if the vehicle rolls over. This cage is covered by a heavy-gauge sheet metal forming the skin of the vehicle. An internally mounted electrical
595:, and two batteries with a capacity of 45 Amp/Hr are provided. The alternator is of the integral rectifier and regulator type. The XR311 is provided with a heavy duty towing pintle as well as a trailer wiring harness receptacle. It is
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during high speed cornering. The tires are self-cleaning, meaning mud and other materials are flung free from the tread grooves by centrifugal force, rather than sticking to the tire (more commonly known as a "mud tire").
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Development of the XR311 commenced as a private venture in 1969, with the first of two prototypes being completed in 1970. The vehicle was developed as a possible replacement for the by that time over ten years old
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feature a special high-pressure inner tire tube, which provides a built-in backup in case air pressure is lost from the main tire itself, as well as providing lateral support to eliminate leakage from the
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and there is an external load-carrying platform above this which can take a maximum load of 386 kg (851 lb). The minimum ground clearance is 11 inches, and a full length
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481:(100 and 180 amp), litter-carrying kit, jump seat for two additional passengers, explosion-resistant reticulated foam fuel-tank filler,
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and various other similar weapons. These weapons could also be mounted on the reconnaissance model on the ring mount.
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installation cost around $ 50,000. The XR311 was designed to carry out a wide variety of roles including anti-tank,
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protects the hull and drivetrain, which allows the vehicle to slide over obstacles. The transmission is a
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Convoy Escort/ Security
Vehicle: This could be provided with a pintle-mount 5.56mm or 7.62 mm
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purchased ten improved or second generation models in 1971. Of these ten vehicles, four had a
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557:(e.g., CV joints and boots, spindle and bearings, and 11 inch disk brakes), and is of a
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489:, extreme climate kits for winterization or desert temperatures, tool kit and portable
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371:, which was eventually selected. As a result of the trials of these two prototypes the
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plastic windows and hinged doors) various communications installations, high output
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uses modified Dana 44 centersections, and used many off the shelf parts from the
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differentials with a 5.89:1 drive ratio are used front and rear, and a lockable
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mounted above the crew compartment, and a total of six rounds of ammunition,
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carrier, internal security and forward air defense communications vehicle.
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The XR311 Story, a
Prototype of the Military Hummer | Wayback Machine
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530:, with three forward and one reverse gears. The XR311 is a full-time
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machine-gun for use in the reconnaissance role and three had 7.62mm
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of US origin that was procured in limited numbers during the
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are fitted on all four wheels. The electrical system is 24V
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Anti-tank: TOW installation with a total of 10 TOW missiles
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338:, which was also called the "HMCV" for a short time).
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454:Reconnaissance: Fitted with a ring-mounted .50cal
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350:An XR311 with six-tube recoilless rifle cluster.
43:but its sources remain unclear because it lacks
436:Detail of the six-tube recoilless rifle cluster
400:designs. It has been stated that an XR311 with
669:February 2013 Backward Glances - MotorTrend
542:ensures traction to all wheels. The fully
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74:Learn how and when to remove this message
440:There were several models of the XR311:
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577:The steering is power-assisted and the
704:Military vehicles of the United States
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458:machine gun with a 360 degree traverse
183:, 190 hp@4,800rpm, 292lb-ft@2,200rpm (
323:. It was originally developed as the
654:BELLUM - FMC XR311 | Wayback Machine
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13:
14:
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363:and other competitors, including
127:Limited Production (at least one
565:spring and hydraulic telescopic
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719:Military light utility vehicles
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1:
659:http://svsm.org/gallery/xr311
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331:(not to be confused with the
379:installation for use in the
325:High Mobility Combat Vehicle
239:lockable center differential
7:
684:FMC XR311 patent USD223817S
625:Interim Fast Attack Vehicle
606:
496:
470:automatic grenade launchers
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263:4,340 mm (171 in)
255:3,070 mm (121 in)
10:
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689:FMC XR311 patent USD237873
679:FMC XR311 patent US3858901
674:FMC XR311 patent US3709314
487:foam-filled run-flat tires
279:1,600 mm (63 in)
271:1,930 mm (76 in)
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709:All-wheel-drive vehicles
233:Single-speed, full time
29:This article includes a
509:at the rear of the hull
444:Support: A 106 mm
58:more precise citations.
664:The Humvee - Angelfire
544:independent suspension
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196:V8, optional 4-barrel
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406:reconnaissance patrol
359:, years prior to the
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146:Multipurpose Vehicle
613:Lamborghini Cheetah
569:at each station. A
551:Oldsmobile Toronado
540:center differential
410:command and control
383:role, three had an
361:Lamborghini Cheetah
103:An XR311 on display
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367:'s design for the
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31:list of references
714:Off-road vehicles
597:air-transportable
555:Cadillac Eldorado
548:front wheel drive
491:fire extinguisher
408:, convoy escort,
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222:3-speed Chrysler
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525:torque converter
504:extraction winch
446:Recoilless rifle
394:FMC Technologies
389:M60 machine guns
317:military vehicle
285:Curb weight
136:Body and chassis
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54:this article by
45:inline citations
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724:FMC Corporation
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559:double-wishbone
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418:military police
398:Lockheed Martin
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118:FMC Corporation
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35:related reading
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579:tubeless tires
571:stabilizer bar
567:shock absorber
561:design with a
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235:transfer case
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192:5.9L (360ci)
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174:5.2L (318ci)
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536:limited-slip
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483:radial tires
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218:Transmission
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172:rear-mounted
114:Manufacturer
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61:
50:Please help
42:
601:air-dropped
599:and can be
589:Disc brakes
563:torsion-bar
532:4WD vehicle
521:TorqueFlite
479:alternators
402:TOW missile
377:TOW missile
342:Development
224:TorqueFlite
211:turbodiesel
56:introducing
698:Categories
638:References
365:AM General
294:Chronology
245:Dimensions
205:potential
198:carburetor
161:Powertrain
124:Production
628:– (
616:– (
584:tire bead
528:automatic
357:M151 jeep
314:prototype
299:Successor
251:Wheelbase
230:automatic
64:July 2012
607:See also
517:Chrysler
513:skid pan
497:Overview
428:Variants
289:4,400lbs
109:Overview
519:A-727 "
414:medivac
373:US Army
151:Related
52:improve
422:mortar
312:was a
276:Height
260:Length
167:Engine
155:Humvee
131:batch)
618:Italy
467:XM174
369:HMMWV
333:JGSDF
327:, or
321:1970s
310:XR311
268:Width
207:Deutz
185:gross
142:Class
92:XR311
37:, or
465:'s,
463:GPMG
456:M2HB
396:and
385:M2HB
329:HMCV
308:The
302:None
227:A727
485:or
336:MCV
209:V8
187:),
700::
603:.
593:DC
553:/
523:"
493:.
420:,
416:,
412:,
237:,
203:or
194:LA
190:or
181:V8
177:LA
41:,
33:,
632:)
620:)
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71:(
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62:(
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