| Welcome to CONSORTIA, a military storefront run by a member of the online government simulation game NationStates. We hope you enjoy your visit. You are currently viewing our forum as a guest. To avoid spam accounts registration has been disabled on this board. This means you are limited to certain areas of the board and there are some features you cannot use. |
| M23A1 Hyena; Armoured engineering vehicle | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tweet Topic Started: Feb 19 2011, 10:57 AM (1,289 Views) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Etoile Arcture | Feb 19 2011, 10:57 AM Post #1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Administrator
|
![]() M23A1 Hyena ![]() The M23A1E1 "Hyena" Armoured Recovery and Repair Vehicle (ARRV) w/ raised hull profile and engine deck for greater internal volume, side-mounted hydraulic crane in travel position, rear tow hook and front winches and tilt/elevation multifunction dozer/plough blade. BACKGROUND Development: The M23A1 "Hyena" is a product improved version of the M82/M83 "Burro" family of armoured recovery and engineering support vehicles produced in a joint venture between Sequoia Automative Works and the Allis-Chalmers Corporation of Coorsota. - DESCRIPTION Overview: The M23A1 "Hyena" is a family of three full-tracked heavy armoured engineering vehicles designed for a wide range of missions on the battlefield including: mobility support (minefield breaching, obstacle and route clearance, road construction, bank preparation at crossing sites), counter-mobility (digging of anti-tank ditches and other obstacles), and survivability (digging of trenches and fighting positions, building barricades, and recovering and repairing other armoured vehicles). The family consists of the following variants:
Protection: The shell of the hull and casement superstructure are of all-welded construction from modified rolled homogenous armour (MRHA) steel with an anti-spall liner and layered anti-mine floor. This is in turn protected by passive armour consisting of spaced arrays of high-hardness or semi-hardened monoplate steel and perforated steel mesh, with an applique of high performing multi-hit resistant polymer constrained ceramic modules. Spaced hard and soft monoplate steel side skirts protect the flanks and running gear. The armour suite provides AEP 55 multi-hit resistance and up to STANAG 4569 Level 5 resistance to medium calibre cannon armament, rocket propelled grenades, overhead protection from artillery fragments and top-attack munitions, and up to Level 4B protection from land mines. Fragment and small arms ballistic protection is also provided to all hydraulic components and hoses, and mesh screens and laser safety filters protect all optics. Defensive aids include an electronic anti-mine protection device and an eight-tube bank of reloadable 76 mm expendable countermeasures (EXCM) dischargers mounted in the rear deck for rapid laying of obscurants or firing of canister rounds for close protection against dismounted infantry. For additional self protection an overhead remote weapon station (ORWS) is mountable offset to the commander cupola, typically mounting a .50 cal heavy machine gun with linkless belt feed from a 3,000 round ammunition hopper bin in the hull. Crew stations: The crew comprise the driver and commander seated at tandem crew stations in the hull superstructure, who can operate all equipment (dozers, excavators, cranes, winches, etc) while under armour using joystick controllers; and two fitters seated behind them. An additional three passenger seats (folding jump seats) are located in the hull for the crew of a recovered tank. Ingress and egress is via two electrically driven sliding overhead hatches with all-round vision blocks, and from two hatches on the left hull side for the fitters and passengers. The casement fighting compartment is spacious with ample stowage for tools, and amenities including a thermoelectric cooler/freezer box and rapid boil cordless electric kettle (both plugging into power inverters in the vehicles internal electrical system), and a chemical toilet for use of all crew. A 200 SCFM CleanCooled Air overpressure and collective nuclear, biological and chemical (NBC) protection system, Dynasensor and Radiac warfare agent detectors, microclimate envirionmental control system (ECS), and Spectronix fire-supression system are all fitted. A carbon dioxide vapour heat exchanger/pump is fitted to the rear engine deck providing heating, ventilation, and air conditioning (HVAC) used to reduce engine strain at high or low temperatures. Vetronics: All operations can be conducted under armour using forward and rear peripheral vision systems (wide-angle CCD cameras), and direct-view periscope optics with rotating thermal viewers on the commander and driver hatches. The vetronics suite is based on that of the M22A2HA Jackal incorporating drive-by-wire controls, self-diagnostic built-in-test equipment (BITE), MilCAN serial bus and fibre channel arbitrated loop (FC-AL) backbone data bus, the Cornerstone battlefield management system (previously the Battlefield Information Collection and Distribution System (BICDS), a position/navigation system (POSNAV), a Digital Cleared Lane Marking System (DCLAMS), multi-function touch display screens, WiMAX wireless intercom, an externally-mounted infantry telephone, and JTRS Cluster 1- and 5-compliant communication suite provided through a JEWEL Waveguide software defined radio set (SDRS). Mobility: The powerpack consists of a rear mounted engine and transmission mounted in parallel on a skate frame for easy access for maintenance and repair. The prime power unit is a licensed-produced Sand Draw Diesel (Sandiesel) D990AGP1 liquid cooled multi-fuel capable twelve cylinder (four valves per cylinder) four-stroke diesel engine with common rail fuel injection system and sequential turbocharger. It is coupled to a Western Motor Works T250FGT1 automatic planetary gearbox transmission with infinitely variable hydrostatic-hydrodynamic steering system, combined braking system, and infinitely variable cooling fan. The suspension is a hybrid hydropneumatic/torsion system with hydropneumatic suspension on road wheels 1, 2 and 6 and torsion bars on road wheels 3, 4 and 5, with semi-active rotary dampers. This system allows elevation and depression of the whole hull for superior positioning during craning and dozing operations. The running gear comprises six rubber-tired high-strength steel road wheels, alloy steel front sprockets and rear idlers, and forged steel single-pin tracks with detachable rubber pads, with a semi-active hydraulic track tensioning system operated by the driver. The vehicle can ford water courses up to the height of the top deck. A deep wading kit can also be installed comprising a pair of intake exhaust towers, with seals inflated on all hatches and bilge pumps in the hull to keep out water when operating submerged. Equipment: The M23A1 provides both side-mounted hydraulic outlets for handheld power tools, and exportable DC power from a 32kW diesel turbine under-armour auxillary power unit (UAAPU). All vehicles are equipped with a range of tools stowed inside the hull including an electric arc welder, a wire welder, plasma torch, oxy-acetylene torch, air compressor, drill press, hydraulic press (for replacing bearings, shims, etc.), various saws (metal cutting rotary and metal cutting band saws), a motorized chainsaw, electric impact wrench, lifting tackle, guide pulley, and a full complement of hydraulic and pnuematic tools. An integral fuel/de-fuel pump is also installed on the hull. The rear hull is fitted with a tow hook with a 35,000 kg pull weight (such as engineering trailers), and a towing pintle of 70,000 kg pull weight. The later is used with a two-piece lightweight tubular steel V-shaped tow bar for recovering disabled vehicles such as main battle tanks. Maxi-Pipe fascines or Class 60 aluminium trackway can also be carried on the back deck secured by the excavator arm or crane jib depending on vehicle, and launched into position to fill in ditches or reinforce river crossing sites.
M23A1E1 Hyena Armoured Recovery and Repair Vehicle (ARRV) ![]() The M23A1E1 "Hyena" Armoured Recovery and Repair Vehicle (ARRV) demonstrating use of an earth auger bit coupled to the crane jib. DESCRIPTION Overview: The M23A1E1 “Hyena“ Armoured Recovery and Repair Vehicle (ARRV) is designed for front-line recovery of swamped, buried, overturned, stuck or damaged tracked vehicles up to Military Load Class 70 (MLC 70) while providing under armour crew protection. It can also perform field maintenance service, battlefield repairs using on-board welding and cutting gear, and can tow disabled vehicles using a rigid or non-rigid hitch. FEATURES Lifting system: A large electro-hydraulic crane jib with a fixed-length boom is located on the left hull side. It has a 270° traverse and 70° maximum elevation with a maximum lift capacity of 35,000 kg. This is sufficient for transporting a whole power pack/transmission, lifting a tank turret, or raising the front or rear of a vehicle to gain access to its suspension and drive assembly. The crane has an electronic momentum limiter that constantly calculates jib elevation, vehicle tilt, and load mass to prevent overloading. An hydraulically powered 609 mm (24 in) earth auger bit can be installed on the crane boom for boring into hard and compacted soil. Winching system: The hull front is equipped with both a primary and auxillary winch. The main winching system is an electro-hydraulic powered double capstan winch using a guide pulley system and hydraulically driven automatic tension device to extend and wind the cable. The main winch has a maximum constant straight pull force of 70 tonnes using up to 180 metres in length of 33 mm steel cable at speeds up to 90 m per minute, or up to 100 tonnes with the help of pulley blocks to increase traction forces. The auxillary winch is used for hoisting and has a 35 kN maximum traction force and is rated for a maximum 3,600 kg pull force. Dozing kit: A servo-operated track-width dozer blade is fitted to the hull front that elevates and tilts using dual power actuators (hydraulic cylinders) and has automatic depth control for accurate digging and plowing. The dozer is primarily used for obstacle removal, debris clearance, mine field breaching and entrenching hull down positions, and is fitted with scarifiers for ripping up road ways. It can clear a lane 4.2 metres wide and can be lowered as a earth anchor or stabiliser while lifting or winching. M23A1E2 Hyena Armoured Engineering Vehicle (AEV) ![]() The M23A1E2 "Hyena" Armoured Engineering Vehicle (AEV) w/ dual-linked V-shaped dozer/plough blade. DESCRIPTION Overview: The M23A1E2 “Hyena“ Armoured Engineering Vehicle (AEV) performs a wide range of tasks under battlefield conditions including dozing, ripping, excavating, craning, grappling, welding, cutting, winching, building and removing obstacles, and mine field clearing. Using an excavating arm it can position fascines to fill in anti-tank ditches; and its dozer blade can deploy portable track ways, do bank preparation on the home and far banks supporting bridge layers, fill in gaps such as craters, blown culverts and ditches, and remove obstacles such as berms, and use its winches to pull rubble, trees and other vehicles out of the way. FEATURES Dozing kit A multifunction full-width dozer blade is front mounted and is fully articulated with adjustable cutting angles that are controlled by dual power elevation and tilt actuators. The blade operates as either a earth anchor, a dozer or a crane stabiliser, and can be used to clear mines, berms, wire, rubble, and tank-ditches, and dig entrenchments. For mine field breaching two blades can be hooked together forming a V-shaped blade with a rearwardly slanted front edge and raking scarifying teeth that dig up and flip over mines or be used for ripping up roadways. Both configurations can clear a 4.2 metre wide trafficable lane for other vehicles to follow. Anti-mine protection aids: A vehicle magnetic signal duplicator (VEMASID) provides self-protection by generating a magnetic field in front of the vehicle to trigger and explode magnetic, proximity and seismic explosives at a safe stand-off distance. Cleared lanes are marked on a digital cleared lane marking system (DCLAMS) using GPS coordinates and shared over digital datalinks via the Cornerstone battlefield management system. Excavation system: A telescopic excavator arm is mounted on the left hull side on a full traverse turntable and is electro-hydraulically controlled, being operated by the driver using two joysticks. A detachable 1.1 m3 (39 3ft) aluminium alloy excavator bucket is attached to the boom and can be used for digging, bulldozing, lifting, grappling, or as an earth anchor. The bucket is capable of excavating at up to 240 m3 per hour, and has two detachable scarifiers for picking up large objects. The boom has a pull strength of 15 tonnes and a push strength of 10 tonnes and is capable of operating in crane mode to lift up to 4,000 kg when at maximum reach (or 100% extension), and 7,900 kg at 50% extension, using the dozer blade for stabilisation. A universal quick-release coupling system allows the bucket to be switched out for other tools including a 2,041 kg (4,500 lb) grapnel, a lifting hook, a hydraulic hammer, or a tree gripper. In addition, devices such as an earth auger bit, miniature flails, milling heads and concrete cutters can be attached to and hydraulically powered through the excavator arm. Refitting can be performed in just a few hours, with the vetronic suite able to detect connected equipment and automatically reconfigure the hydraulic and electrical systems. Winching system: A electro-hydraulically controlled double capstan winch system is fitted to the hull front operating with a guide pulley system. It has a maximum pulling capacity of 52 tonnes or a traction force of 510 kN using pulley blocks, with 122 metres of 28 mm diameter steel cable. M23A1E3 Hyena Assault Breaching Vehicle (ABV) ![]() The M23A1E3 "Hyena" Armoured Breaching Vehicle (ABV) illustrating the low-profile hull, with Pearson full-width mine plough and rear mounted Rafael Carpet fuel-air explosive rocket mine clearance system. DESCRIPTION Overview: The M23A1E3 “Hyena“ Assault Breaching Vehicle (ABV) is a dual function combat bulldozer and mine field clearing vehicle. It differs from other vehicles in the M23A1 series by lacking a turntable and excavating/craning arm and having a lower profile full-width casement superstructure with centre crew stations to offer the maximum under armour protection to the crew. The ABV is designed to operate in the most hostile conditions clearing routes, creating assault lanes, and filling ditches and trenches. It also has the role of neutralizing mines and obstacles in the surf zone and on the beach during opposed amphibious assaults. Depending on the mission a multifunction full-width dozer blade, V-shaped combined dozer blade and full-width mine-plough, a Pearson full-width mine plough kit or RKM twin track-width rollers can be fitted to the front hull for respectively combat dozing and mine field clearing. A electro-hydraulically controlled double capstan winch system is also fitted to the hull front operating with a guide pulley system able to pull up to 35 tonnes. The vetronics suite incorporates a digital cleared lane marking system (DCLAMS) as part of the Cornerstone BMS suite. For self protection a vehicle magnetic signal duplicator (VEMASID) is installed that detonates mines at a stand-off distance from the hull. To deal with steep inclines and river banks a rocket-propelled self-emplacing earth anchor with a 90 metre cable can be launched from the roof. Equipment includes demolition blocks and detonators (stored internally in fire and blast proof containers) for reducing obstacles and battlefield fortifications, and various handheld power tools. FEATURES Mine clearing system: For mine clearance a Rafael Carpet fuel–air explosive (FAE) rocket pod is mounted to the rear of the vehicle weighing 3.5 tonnes fully loaded. The Carpet launcher contains twenty (20) reloadable rounds of 20x265 mm rockets that can be fired singularly or in sequence to breach a route through a mine field. The number of rockets used is tailored for the type of target engaged. At the impact point, each rocket disperses a spray of fuel above the target area, to form the fuel-air explosive cloud. The detonation creates a strong impulse over a wide area, which triggers most mines, regardless of terrain, foliage or man-made obstacles. The explosion clears a safe passage, wide enough for safe movement of all combat vehicles. Firing a salvo of rockets from a distance of 65-165 meters from the forward edge of the mine field, Carpet enables breaching a path 100 metres long, within one minute. |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 user reading this topic (1 Guest and 0 Anonymous) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| « Previous Topic · Engineering & Support Vehicles · Next Topic » |










7:18 PM Jul 11