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LAV II
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The LAV II is the second generation of the Light Armoured Vehicle (LAV) family. The LAV II is an 8×8 vehicle unlike the 6×6 Armoured Vehicle General Purpose, which is a LAV based on the Piranha I. The United States Marine Corps was the first user of the LAV II, which it calls the LAV-25. Canada procured two main variants: the Coyote Reconnaissance Vehicle and the Bison armoured utility vehicle. LAV IIs in Australia are known as the ASLAV.
Key Information
LAV-25
[edit]During the 1980s, the U.S. Marine Corps began looking for a light armored vehicle to give their divisions greater mobility. They chose the Light Armored Vehicle design from General Motors Diesel. The LAV-25 was partially based on the 6x6 Armoured Vehicle General Purpose (LAV I) of the Canadian Army that was also produced by General Motors Diesel. It entered service with the Marines in 1983. The U.S. Army was interested in these vehicles at the time but did not order any (however they did later adopt similar vehicles with the introduction of the Stryker family). The Army did, however, borrow at least a dozen LAV-25s for use by the 82nd Airborne Division, 3-73rd Armor for a scout platoon during the Gulf War. These LAV-25s were returned to the Marine Corps after the conflict.[1] The USMC ordered 758 vehicles of all variants. LAVs first saw combat during the Invasion of Panama in 1989 and continued service in the Gulf War, Iraq War, and the War in Afghanistan.[2]
A USMC light-armored reconnaissance battalion includes 56 LAV-25s, 16 LAV-ATs, 12 LAV-Ls, 8 LAV-Ms, 4 LAV-Rs, 4 LAV-C2s, and an unknown number of LAV-MEWSS vehicles.[3]
Bison
[edit]The Bison is an armoured vehicle based on the 8x8 LAV-25 platform and was originally designed as an armoured personnel carrier. Entering service in 1990, it was used mainly as an armoured utility vehicle having a number of different sub-variants throughout its years of service.
Design
[edit]By starting with a basic LAV-25, the Bison design process took only seven days.[4] The Bison differs from the baseline LAV-25 by raising the height of the roof, removing the turret ring, placing a commander's cupola behind the driver, and incorporating a rail mount system in the cargo/passenger compartment to quickly change mission specific equipment. The driver is seated in the front-left of the crew compartment. The commander has a slightly raised position directly behind the driver with access to his own hatch and mounted machine gun. The engine is to the right of the crew compartment.
The Canadian Forces began upgrading the Bison between 2002 and 2008. The upgrades include improved engine power, new torsion bars, fittings for add-on armour, air conditioning, and the VRS respirator system for NBC defence.[5]
Sub-variants
[edit]The Bison's rail mount system allows it to be adapted to a variety of roles without any major modifications. Bisons used by the Canadian Forces have been adapted for use as armoured personnel carriers (original configuration, mostly replaced in this role by the LAV III), 81mm mortar carriers, ambulances (32), Mobile Repair Team (MRT) vehicles (32), Armoured recovery vehicles (32), electronic warfare vehicles (25), and NBC reconnaissance vehicles (4).
Current operators
[edit]
- Australian Army – 97[4] (See ASLAV Type II)
- Canadian Army – 199[4] (being phased out and replaced by LAV VI)
- US National Guard – 12[4]
Coyote Reconnaissance Vehicle
[edit]The Coyote has been in Canadian service from 1996 and was acquired for use in the light reconnaissance (scout) role,[6][7] although was also initially used as an armoured fighting vehicle in the role of medium tank trainer within armoured squadrons in the same way as the Armoured Vehicle General Purpose (AVGP) it replaced.[8] In service since 1996, the Coyote is a later generation of the LAV-25 and is of the same family and similar generation as the Bison APC and the Australian ASLAV.
Armament
[edit]The Coyote mounts a 25×137mm M242 Bushmaster chain gun and two 7.62×51mm NATO C6 general purpose machine guns.[6] One of the machine guns is mounted coaxial to the main gun while the other is pintle-mounted in front of the crew commander's hatch. The main gun is equipped with dual ammunition feeds that allow for separate weapons effects, selectable by the gunner/crew commander; the standard load is a belt of armour-piercing sabot rounds and a belt of HE-T explosive/fragmentation rounds. The main gun and coax machine gun are 2-axis stabilized. The turret is equipped with a laser rangefinder, but no ballistic computer; elevation and lead corrections are applied manually by the gunner using multi-stadia reticules in the day, thermal, and image intensification sights. The turret is also equipped with grenade dischargers that can be loaded with smoke and fragmentation grenades.
Mobility
[edit]The Coyote is powered by a Detroit Diesel 6V53T engine developing 400 horsepower (300 kW), and can reach speeds of 100 kilometres per hour (62 mph) (on road). The Coyote has a maximum road range of 660 kilometres (410 mi). It uses a larger wheel than initially used on the Bison and AVGP (these vehicles were later retrofitted with this wheel). Compared to the later LAV-III family of vehicles, the Coyote is smaller, uses smaller wheels and tires, has a "sharp" rather than "rounded" nose profile, and has a smaller, oval driver's hatch. Like the LAV-III, the Coyote can be fitted with additional ceramic bolt-on armour panels for increased protection. The Coyote can be transported on a Hercules C-130 plane but the turret needs first to be removed.[9]
Sub-variants
[edit]
Coyotes come in three variants: Command, Mast, and Remote. The Mast and Remote variants have a sophisticated suite of electronic surveillance equipment including radar, video, and infrared surveillance night vision devices. The mast variant has this equipment mounted on a 10-metre telescoping mast that can be extended to raise the surveillance suite out from behind cover. The remote variant of the Coyote has its surveillance suite mounted on two short tripods, which crew can deploy remotely using a 200-metre spool of cable.
When first purchased, the Coyote was designated for service with both the Regular Force and Reserve Force, with the Mast variants earmarked for the Regular units and the Remotes designated for the Reserves. Shortly after taking delivery of the vehicles, but before they were assigned to the Reserve units, all Coyotes were reassigned to the Regular Force.
Service history
[edit]Since the introduction of the Coyote to the Canadian Armed Forces, the vehicle has served national interest domestically and abroad. The Coyote served during the United Nations/ NATO missions in Bosnia and Herzegovina, Macedonia, Kosovo, and in Afghanistan. Domestically, it has been deployed during "Operation Grizzly" to Kananaskis to secure the 28th G8 summit, the 36th G8 summit, and the 2010 G-20 Toronto summit,[10][11] in addition to a number of domestic emergency response incidents. The Coyote is currently being retired and is being replaced by a mix of Tactical Armoured Patrol Vehicles and LAV 6 armoured vehicles.
References
[edit]- ^ "3rd Battalion, 73rd Armor Regiment". globalsecurity.org.
- ^ "LAV-25 - Armored reconnaissance vehicle". ARG. Archived from the original on 6 February 2017. Retrieved 27 April 2013.
- ^ Lamothe, Dan (11 May 2009). "Corps has big plans to upgrade LAV fleet". Marine Corps Times. Archived from the original on 21 June 2013. Retrieved 27 April 2013.
- ^ a b c d "Bison - Armoured personnel carrier". Archived from the original on March 6, 2007. Retrieved 2009-07-24.
- ^ "Canadian Army > Bison Armoured Vehicle". Department of National Defence (Canada). Retrieved 2009-07-24.[permanent dead link]
- ^ a b "Exploring the Coyote". Department of National Defence. Archived from the original on 2 October 2007. Retrieved 18 September 2008.
- ^ "Vetronics Engineering". General Dynamics Canada. Archived from the original on 29 April 2008. Retrieved 18 September 2008.
- ^ Marteinson, John; McNorgan, Michael R. (2000). The Royal Canadian Armoured Corps: An Illustrated History. Montreal: Robin Brass Studio. ISBN 978-1896941172.
- ^ Barry Cooper; Mercedes Stephenson; Ray Szeto (2004). "Canada's Military Posture: An Analysis of Recent Civilian Reports" (PDF). The Fraser Institute. Archived from the original (PDF) on 11 November 2007. Retrieved 29 January 2008.
- ^ Barr, Colonel David."The Kananaskis G8 Summit: A Case Study in Interagency Cooperation." journal.forces.gc.ca, 14 July 2008. Retrieved: 5 June 2010.
- ^ Barr, Colonel David. "Mosquitoes could be Huntsville weapon against protesters" thestar.com, 22 June 2010. Retrieved: 23 June 2010.
External links
[edit]
Wikimedia Commons has media related to LAV II.
- GDLS Canada LAV II website Archived 2022-10-05 at the Wayback Machine
LAV II
View on Grokipediafrom Grokipedia
The LAV II is a second-generation family of 8×8 wheeled light armored vehicles manufactured by General Dynamics Land Systems, designed primarily for reconnaissance, security, and tactical mobility in combat environments.[1] Featuring enhanced protection against small arms and artillery fragments, the platform emphasizes battlefield survivability through armored hulls and fire suppression systems.[1] Variants such as the LAV II-25mm provide firepower via a 25 mm M242 chain gun, coaxial 7.62 mm machine gun, and pintle-mounted weapon, supporting missions against soft-skinned and light armored targets.[1]
Powered by a 300 horsepower Detroit Diesel 6V53T engine, LAV II vehicles achieve road speeds of up to 100 km/h and possess amphibious capabilities with swim speeds of 10 km/h after minimal preparation, enabling rapid deployment via air or sea transport including C-130 aircraft.[1] The Canadian Armed Forces adopted LAV II derivatives including the Bison, an eight-wheeled utility vehicle serving as an infantry carrier, command post, and ambulance with capacity for eight personnel plus crew.[2][3] Similarly, the Coyote reconnaissance variant equips Canadian units for surveillance and light fire support, though some models lack full amphibious features.[4] These vehicles have demonstrated operational effectiveness in diverse terrains, with combat weights around 13 tonnes allowing for a balance of agility and load-carrying for up to 420 rounds of 25 mm ammunition in armed configurations.[1] While upgrades continue in successor platforms like the LAV 6.0, the LAV II remains notable for its role in modernizing light armored forces through proven mobility and modular adaptability.[2]
Operational data from Canadian deployments highlight the Bison's reliability in diverse environments, including Afghanistan where its lighter weight aided air transportability, though vulnerabilities to improvised explosive devices prompted its replacement by the heavier, better-protected Armoured Combat Support Vehicle based on the LAV 6.0 platform.[2] Compared to the Stryker's combat experience in Iraq, where add-on armor mitigated urban threats but increased logistical demands, the Bison's design favors versatility in multinational peacekeeping over high-intensity warfare, with lower maintenance costs due to wheeled simplicity but higher tire wear in rough conditions versus tracks.[69] This trade-off underscores causal realism in vehicle selection: wheeled platforms like the Bison enable faster force projection at the expense of survivability against peer adversaries equipped with advanced anti-armor systems.
Development
Origins and Requirements
The origins of the LAV II trace back to the Canadian Forces' strategic shift in the 1970s toward versatile, air-transportable wheeled vehicles for peacekeeping and rapid deployment missions, driven by budget constraints and the interim nature of the earlier 6x6 Armoured Vehicle General Purpose (AVGP) fleet procured in 1976.[5] The AVGP, based on the MOWAG Piranha I, fulfilled temporary roles in infantry transport and reconnaissance but proved inadequate for evolving demands in mobility and payload capacity amid post-Cold War fiscal pressures and a focus on multi-role platforms over heavy tracked armor.[5] By the mid-1980s, requirements crystallized for an upgraded 8x8 family of light armoured vehicles offering improved protection, amphibious capability where needed, and adaptability for utility, command, and surveillance tasks, while supporting domestic production to bolster Canada's industrial base.[5] The Bison variant addressed the specific need for a light utility vehicle providing protected mobility for non-combat roles, including troop transport (up to 10 personnel plus a crew of three), medical evacuation, electronic warfare, and recovery operations, with emphasis on low-cost maintenance and compatibility with airlift via C-130 aircraft.[6] Procurement of 199 Bison vehicles was authorized in July 1989 by the Canadian Army, overriding preferences for tracked alternatives expressed by program lead Colonel Roméo Dallaire, who prioritized enhanced cross-country performance; production by General Motors Diesel Division (later General Dynamics Land Systems-Canada) began shortly thereafter, with initial deliveries in 1990.[6] This decision reflected causal priorities of fiscal efficiency and wheeled versatility for low-intensity conflicts over specialized heavy armor.[5] Parallel requirements for the Coyote reconnaissance vehicle emphasized battlefield surveillance, target acquisition, and light fire support, mandating a stabilized turret armed with a 25 mm M242 Bushmaster chain gun, coaxial 7.62 mm machine gun, and integrated sensors for day/night operations, without amphibious features to prioritize speed (up to 100 km/h) and sensor mast deployment for stand-off reconnaissance.[7][8] The Canadian Forces ordered 203 units in the early 1990s, leveraging the same Piranha II-derived 8x8 chassis as the Bison for logistical commonality, with vehicles entering service in 1996 after development focused on enhancing situational awareness for Royal Canadian Armoured Corps scouts.[7] These specifications stemmed from lessons in AVGP Cougar limitations during exercises and deployments, prioritizing empirical needs for protected, networked reconnaissance in diverse terrains over amphibious universality.[5]Procurement and Production
The LAV II family, comprising variants such as the Bison armoured personnel carrier and Coyote reconnaissance vehicle, was procured by the Canadian Armed Forces in the late 1980s and early 1990s to address gaps in mobile utility, transport, and surveillance capabilities following the retirement of older platforms like the Lynx reconnaissance vehicle.[9][10] The Bison was selected as an interim solution for armoured personnel carrier roles, with initial contracts awarded to General Motors Diesel Division (later acquired by General Dynamics and rebranded as General Dynamics Land Systems–Canada, or GDLS-C) for production in London, Ontario.[11][12] Production of the Bison began in the late 1980s, with the variant entering operational service in 1990; a total of 195 units were ultimately delivered to the Canadian Army for roles including troop transport, command, ambulance, and electronic warfare.[12][11] The Coyote reconnaissance vehicle followed, with procurement initiated in 1993 to provide enhanced surveillance and scouting; 203 vehicles were ordered and produced, achieving initial operational capability in 1996.[13][9] All LAV II production occurred domestically at GDLS-C's facility in London, Ontario, leveraging the 8x8 chassis derived from the U.S. LAV-25 design but adapted for Canadian requirements, emphasizing wheeled mobility over tracked alternatives.[13] Contracts emphasized industrial benefits under Canada's defence procurement policy, supporting local manufacturing and sustainment; no competitive bidding details are publicly detailed for the initial awards, reflecting the era's reliance on established domestic suppliers like General Motors for armoured vehicle programs.[14] Subsequent minor upgrades were handled in-house by GDLS-C, but core production ceased after fulfilling the original orders, with the fleet later supplemented by donations and partial replacements amid ongoing modernization efforts.[12]Entry into Service
The Bison variant, the initial LAV II model to achieve operational status, entered service with the Canadian Armed Forces in 1990 after prototype development in 1988 and full production starting in 1989.[15] Initially procured for primary reserve units as a flexible armoured personnel carrier, it was rapidly adapted for regular force applications, including participation in the Oka Crisis that same year.[6][16] The Coyote reconnaissance variant followed, with an order for 203 vehicles placed in 1993 to succeed the Lynx wheeled reconnaissance vehicle.[9] Deliveries were completed by 1996, marking full entry into service for this specialized LAV II configuration equipped for surveillance and targeting roles.[10] These introductions enhanced the Canadian Army's wheeled armoured capabilities, shifting from earlier 6x6 platforms toward the standardized 8x8 LAV II architecture derived from the LAV-25 design.[15]Design Characteristics
Chassis and Powertrain
The LAV II employs an 8×8 monocoque chassis fabricated from welded aluminum armor plates over a spaceframe, balancing ballistic resistance to small arms and fragments with a curb weight of 11,680 kg and combat weight of 13,200 kg.[1] Dimensions include a length of 6.527 m, width of 2.62 m, and height of 2.692 m, supporting modular mission payloads across variants such as the Bison and Coyote.[1] This construction, derived from the Mowag Piranha II design under license, prioritizes low ground pressure for mobility on varied terrain.[17] Suspension consists of independent systems on all eight wheels, with selective 8×8 drive, power steering, and power brakes enhancing handling.[1] Central tire inflation and run-flat inserts maintain operational integrity post-puncture, contributing to cross-country performance.[18] The powertrain centers on a Detroit Diesel 6V53T turbocharged diesel engine delivering 300 hp, integrated with an Allison MT653 automatic transmission offering five forward gears and one reverse.[1] A single transfer case and four automotive differentials distribute power, while amphibious propulsion uses two propellers and four rudders for water drive.[1] This setup yields road speeds over 100 km/h and a range supporting extended operations, consistent across Bison and Coyote configurations.[17][6]Protection and Survivability
The LAV II family employs an all-welded steel hull that delivers baseline ballistic protection against small-arms fire up to 7.62 mm NATO ammunition at point-blank range and shell splinters from artillery fragments, aligning with STANAG 4569 Level 1 requirements.[18][19] This lightweight armor prioritizes mobility over heavy defense, rendering the vehicle vulnerable to larger-caliber direct-fire weapons or anti-tank munitions without upgrades.[18] Operational enhancements include modular add-on armor packages, such as those developed by DEW Engineering for Bison variants deployed to Afghanistan starting in 2002, which bolster resistance to rocket-propelled grenades, higher-velocity small-arms rounds, and improvised explosive device blasts via appliqué plates and underbelly reinforcements.[20] These kits, weighing several hundred kilograms, were retrofitted to address evolving threats but reduced amphibious capability in some configurations.[16] The flat-bottomed hull design offers minimal inherent mine or IED resistance, with survivability against underbelly blasts relying on crew positioning, rapid evasion enabled by the 8x8 drivetrain, and optional slat armor cages for shaped-charge warheads.[21] Standard features include a collective NBC overpressure system for operations in contaminated zones and spall liners to mitigate internal fragmentation from penetrations.[16] No active protection systems, such as hard-kill interceptors, were integrated into baseline LAV II models, emphasizing passive defenses and tactical maneuver over standoff countermeasures.[22]Armament and Sensors
The LAV II platform supports modular armament configurations tailored to mission roles, with transport variants such as the Bison typically equipped with a single pintle-mounted 7.62 mm C6 general-purpose machine gun for self-defense and suppressive fire.[15] Some Bison sub-variants, including command post configurations, may incorporate a lighter 5.56 mm C9A1 machine gun.[15] Reconnaissance and fire support variants utilize a two-person electric-drive turret armed with a stabilized 25 mm M242 Bushmaster chain gun capable of firing armor-piercing, high-explosive, and incendiary rounds for light anti-armor and infantry support roles, supplemented by a coaxial 7.62 mm C6 machine gun and a pintle-mounted 7.62 mm machine gun for the commander.[21] These turrets also include eight smoke grenade launchers for obscuration and deception.[21] Anti-tank guided missiles, such as the TOW system, can be integrated on select configurations for enhanced lethality against armored threats.[23] Sensors on the LAV II emphasize situational awareness and targeting, with basic variants relying on standard optical sights and vehicle intercoms linked to the machine gun.[15] Advanced reconnaissance models like the Coyote integrate a comprehensive surveillance suite, including a mast-mounted sensor package with 360-degree coverage deployable to 5 meters height, featuring a search radar for ground surveillance, forward-looking infrared (FLIR) imager, eye-safe laser rangefinder, and daylight television camera for all-weather, day-night target acquisition up to several kilometers.[21] A dismountable sensor pack extends remote monitoring up to 200 meters from the vehicle.[21] The turret incorporates a laser warning receiver to detect incoming threats and enable countermeasures.[21] Fire control systems provide stabilization for on-the-move engagement, with electro-optical integration for the 25 mm gun's ballistic computer.[23] These capabilities were procured under contracts emphasizing reliability in diverse environments, with initial deliveries in the mid-1990s.[21]Mobility and Amphibious Features
The LAV II employs an 8×8 wheeled drivetrain with powered steering on the first two axles and independent suspension, enabling operation on roads, rough terrain, and obstacles up to 0.6 meters high.[24] It is fitted with a Detroit Diesel 6V53T turbocharged diesel engine delivering 275 horsepower at 2,800 rpm, coupled to an Allison MT653 automatic transmission featuring five forward gears and one reverse.[24] [9] This powertrain provides a maximum road speed of 100 km/h and an operational range of approximately 650 km with internal fuel.[25] [13] Ground clearance measures 0.41 meters, with a fording depth of 1.07 meters without preparation, supporting mobility in varied environments including snow and mud as demonstrated in Canadian operational testing.[24] The vehicle's low ground pressure and articulated chassis contribute to its cross-country performance, with a power-to-weight ratio allowing acceleration from 0 to 50 km/h in under 15 seconds.[25] For amphibious operations, the LAV II is fully capable without significant preparation, involving the deployment of trim vanes and activation of bilge pumps.[26] Propulsion in water is achieved via twin propellers mounted at the rear, enabling a swimming speed of up to 10 km/h.[27] This feature, inherited from the Piranha IB hull design, allows short water crossings and supports rapid deployment in littoral or riverine scenarios, though sustained amphibious use is limited by fuel and endurance constraints.[28]Variants
Bison
The Bison is an 8×8 wheeled armoured personnel carrier variant of the LAV II family, developed for the Canadian Army as a light infantry transport and utility vehicle. Originally configured to carry an infantry section, it features a crew of two (driver and commander/gunner) plus eight passengers, with provision for a .50-caliber heavy machine gun and 7.62 mm general-purpose machine gun for self-defense. Manufactured by General Dynamics Land Systems Canada, the Bison entered service in 1990, with a total procurement of 199 units across various configurations.[16][11] Following the introduction of the heavier LAV III for frontline combat roles, the Bison fleet underwent the Bison Re-role Project, converting most vehicles from their original APC configuration to specialized support functions to complement mechanized battlegroups. This re-roling included adaptations for enhanced survivability and mission-specific equipment, such as medical facilities in ambulances or communication arrays in command posts. Between 2002 and 2008, a life extension program upgraded the vehicles with improved engine power from the Detroit Diesel 6V-53T, new torsion bars for better suspension, and fittings for add-on armour, extending operational life amid deployments in Afghanistan.[15][29] Key Bison variants include:- Ambulance: Equipped for casualty evacuation with internal medical fittings for up to four stretchers.
- Command Post: Fitted with advanced communication systems for tactical headquarters operations.
- Mobile Repair Team: Supports battlefield recovery and maintenance with tools and spare parts storage.
- Electronic Warfare: Outfitted for signals intelligence and jamming capabilities.
- Mortar Carrier: Mounts an 81 mm mortar system for indirect fire support.
- Air Space Coordination Centre: Provides radar and coordination for air defense.
- Forward Observation: Equipped for artillery spotting and fire direction.
Coyote Reconnaissance Vehicle
The Coyote Reconnaissance Vehicle is a turreted, 8×8 wheeled armoured reconnaissance platform developed by General Dynamics Land Systems Canada for the Canadian Army as part of the LAV II family. Procured in 1993 to replace the Lynx reconnaissance vehicle, it entered operational service in 1996 with approximately 203 units produced.[9][32] It emphasizes stealthy observation, target acquisition, and limited engagement capabilities over troop transport or heavy combat roles. Equipped with a fully stabilized turret, the Coyote mounts a 25 mm M242 Bushmaster chain gun as its primary armament, capable of firing armor-piercing, high-explosive, and anti-personnel rounds, alongside a coaxial 7.62 mm M240 machine gun for suppressive fire.[7] Reconnaissance sensors include day/night optics, thermal imagers, and laser rangefinders integrated into the turret for target designation and surveillance, with some configurations featuring a 10-meter telescoping mast supporting MSTAR radar and additional electro-optical systems.[9] The four-person crew—commander, gunner, driver, and observer—operates from a protected compartment, with the vehicle designed to withstand small-arms fire and artillery fragments.[32] Mobility is provided by a Detroit Diesel 6V53T turbocharged diesel engine delivering 275 horsepower, paired with an Allison MT653 automatic transmission, enabling a top road speed of 100 km/h and a range of 660 km.[21][33] Measuring 6.39 m in length, 2.50 m in width, and 2.69 m in height, with a combat weight of 14.4 tonnes, it offers good cross-country performance via eight large run-flat tires and central tire inflation, though it lacks full amphibious capability to accommodate its specialized equipment.[32][34]Related and Export Variants
The ASLAV (Australian Light Armoured Vehicle) serves as the principal export adaptation of the LAV II platform, tailored for the Australian Army's reconnaissance and surveillance requirements. This 8x8 amphibious wheeled vehicle, based directly on the LAV-25 chassis, incorporates modifications such as improved dust filtration and cooling systems to suit arid and harsh Australian terrains.[35][36] Primary armament consists of a 25mm M242 Bushmaster chain gun in a one-man turret, with coaxial 7.62mm machine gun and optional pintle-mounted heavy machine gun for enhanced firepower against light threats. The vehicle maintains the Detroit Diesel 6V53T engine, providing road speeds up to 100 km/h and amphibious capability at 10 km/h via water jets. Procurement began in the late 1980s, with deliveries supporting operational deployments in East Timor and the Middle East, where the ASLAV demonstrated reliability in mobility and sensor integration for dismounted infantry support.[37][36] No other nations have adopted direct exports of the LAV-25 or LAV II equivalents beyond licensed production for Australia, limiting the platform's international proliferation compared to later Piranha-derived designs. The ASLAV fleet underwent upgrades, including enhanced armor and electronics, prior to partial replacement by heavier systems like the Boxer CRV, reflecting evolving threats and sustainment costs.[38][39]Operational History
Early Deployments and Testing
The LAV II Bison, an armoured personnel carrier variant based on the LAV-25 chassis, entered Canadian Forces service in 1990 following developmental and acceptance testing conducted by the Directorate of Land Capability Systems and Programs Management. Initial performance trials evaluated mobility, reliability, and utility functions across prototypes and early production units, confirming suitability for roles including troop transport, ambulance, and maintenance support prior to operational acceptance.[15] The Bison's first deployment occurred during the Oka Crisis in July 1990, where elements of the Canadian Army, including 2nd Battalion Royal Canadian Regiment, employed it for internal security and standoff operations amid the Mohawk resistance at Kanesatake. Bisons provided protected mobility for infantry in urban and wooded terrain, marking the vehicle's debut in a domestic crisis response with no reported mechanical failures under field conditions. Later that year, Bisons supported Operation Desert Shield in the Persian Gulf, deploying with Canadian contributions for logistics and force protection until the 1991 ceasefire, demonstrating amphibious and long-distance transport capabilities in desert environments.[6] The Coyote reconnaissance vehicle, procured in 1993 to succeed the Lynx fleet, completed initial production and testing by 1996, achieving operational capability that year after trials integrating its mast-mounted surveillance suite and 25 mm chain gun for extended-range observation. Early evaluations included two rotational deployments by Canadian reconnaissance troops to the U.S. National Training Center at Fort Irwin, California, in the mid-1990s, where units from Lord Strathcona's Horse (Royal Canadians) assessed tactical reconnaissance, sensor data relay, and integration with mechanized forces in high-intensity simulated maneuvers. These exercises validated the Coyote's over-the-hill surveillance and rapid repositioning, informing doctrinal refinements before international peacekeeping commitments.[7][9] Across the LAV II family, early fielding emphasized wheeled mobility advantages over tracked predecessors like the M113, with post-deployment analyses highlighting reliability in varied climates but noting vulnerabilities to small-arms fire that prompted add-on armor considerations by the late 1990s.[5]Combat and Peacekeeping Operations
The Bison variant of the LAV II saw early deployment in United Nations Operation in Somalia II (UNOSOM II) starting in 1990, providing armoured transport and support for Canadian contingents amid deteriorating security conditions that included clashes with local militias.[40] The Coyote reconnaissance vehicle, entering service in 1996, supported NATO's Stabilization Force (SFOR) in Bosnia and Herzegovina, conducting patrols and surveillance in post-Dayton Accord stabilization efforts from 1996 onward, including operations near Velika Kladuša in March 2001.[41] Both variants contributed to Operation Essential Harvest in the Republic of Macedonia in 2001, where Coyotes navigated urban environments for reconnaissance during weapons collection from ethnic Albanian insurgents under NATO auspices.[42] In Kosovo, Coyote vehicles participated in Kosovo Force (KFOR) missions following the 1999 intervention, providing mobile observation and escort duties in a volatile peacekeeping environment marked by sporadic ethnic violence.[43] Bison and Coyote units also deployed to Afghanistan as part of Task Force Afghanistan from 2001, with Bisons serving in combat service support roles for Task Force Orion, leveraging their mobility to match mechanized infantry operations in rugged terrain despite the primary use of LAV III for direct assaults.[44] These deployments exposed LAV II variants to improvised explosive devices and small-arms fire, prompting add-on armour upgrades for enhanced protection in high-threat zones like Kandahar Province.[45] While LAV II platforms excelled in reconnaissance and logistics during peacekeeping transitions to stabilization, their lighter armour limited direct combat engagements compared to heavier vehicles, focusing instead on force multiplication through rapid mobility and versatility in multinational coalitions.[16] No major losses of LAV II vehicles were reported in these operations, underscoring their reliability in low-to-medium intensity conflicts, though upgrades were necessitated by evolving threats like roadside bombs in Afghanistan.[43]Lessons from Deployments
Deployments of LAV II variants, particularly the Bison and Coyote, in Afghanistan from 2002 to 2011 revealed critical vulnerabilities to improvised explosive devices (IEDs), with no level of armor proving sufficient against large, command-detonated charges aimed at achieving catastrophic vehicle kills.[5] In operations such as Op MEDUSA (September 2006), where Canadian forces cleared Taliban positions in Panjwaii District, armoured reconnaissance elements using LAVs, Bisons, and Coyotes supported infantry but suffered losses, including 12 fatalities, underscoring the need for enhanced route clearance and combined arms integration over reliance on vehicle protection alone.[46] Mobility proved a key strength, enabling rapid convoy escorts, quick reaction forces (QRF), and surveillance in rugged terrain, with Coyote reconnaissance vehicles providing effective mast-mounted sensors for target acquisition up to 24 km.[5] However, doctrinal underutilization shifted recce units toward static security and unconventional tasks, such as embedding with Afghan National Army operational mentoring and liaison teams (OMLTs) from 2006 onward, highlighting the necessity for adaptable training in counterinsurgency (COIN) environments rather than traditional armoured warfare.[46] Sustainment challenges emerged in echelons lacking integral force protection, relying on battle group resources during surges like the 300 additional troops committed on September 1, 2006, which exposed gaps in communications, night operations, and spare parts logistics for wheeled platforms in austere conditions.[46] Bison variants excelled in maintenance and recovery roles but required upgrades for better diagnostics and crew ergonomics, informing subsequent modernization efforts that incorporated over 1,600 operational lessons to improve lethality and protection.[5] These experiences emphasized prioritizing combined tank-reconnaissance pairings and troop structuring for high-intensity COIN, as seen in rotations like Roto 4 (2007), where such integrations dismantled IED networks and recaptured Taliban checkpoints.[46]Upgrades and Sustainment
Modernization Programs
The primary modernization effort for LAV II variants, including the Bison armored personnel carrier and Coyote reconnaissance vehicle, occurred between 2002 and 2008 as part of a mid-life upgrade initiative to address obsolescence and enhance operational capabilities. These upgrades featured improved torsion bars for enhanced suspension durability, integration of air conditioning systems to improve crew endurance in varied climates, structural provisions for modular add-on armor kits to bolster ballistic and mine protection, and installation of the Vehicle Respirator System (VRS) for improved nuclear, biological, and chemical defense.[9] This program extended the service life of approximately 199 Bison and 203 Coyote vehicles, enabling their continued use in rear-echelon support and reconnaissance roles alongside newer LAV III platforms. No further fleet-wide modernization contracts were awarded for LAV II after 2008, as resources shifted toward LAV 6.0 upgrades and procurement of the Armoured Combat Support Vehicle (ACSV) to eventually replace the Bison fleet of 195 vehicles.[2][12] In 2023–2024, a limited refurbishment initiative emerged to overhaul decommissioned LAV II Bison and Coyote units for potential donation to Ukraine, involving engine overhauls, armor reinforcement, and electronics updates under a $178 million contract with Armatec; however, the program faced delays due to bureaucratic issues and was terminated in October 2025 without deliveries.[47][48]Maintenance Challenges
The LAV II variants, including the Bison and Coyote, have encountered substantial sustainment difficulties stemming from their aging platforms, originally introduced in the 1990s, which have led to escalating maintenance demands and declining reliability as cumulative operational wear accumulates. By 2023, the Canadian Armed Forces planned to retire 195 Bison and 149 Coyote vehicles, citing their obsolescence and the need for replacement by newer Armoured Combat Support Vehicles (ACSV) based on the LAV 6.0 chassis, as the older fleet struggled with frequent mechanical failures and high downtime for repairs.[49] Supply chain disruptions and parts backlogs have compounded these issues, particularly during high-tempo deployments such as the NATO Enhanced Forward Presence mission in Latvia, where chronic shortages forced the sidelining of multiple vehicles to maintain minimal operational readiness, with internal documents attributing the problems to delayed procurement and logistical bottlenecks within the Department of National Defence.[50][51] These sustainment shortfalls reflect broader Canadian Army challenges in the Personnel, Equipment, Training, and Sustainment (PETS) framework, including insufficient specialized maintenance personnel and inadequate forecasting for spare parts in an era of global supply constraints.[52] Audits of wheeled LAV life cycle support contracts have revealed deficiencies in contract oversight and performance management, contributing to inefficient resource allocation and prolonged repair cycles that undermine fleet availability.[53] Efforts to refurbish excess LAV II vehicles for donation, such as to Ukraine, have further highlighted these hurdles, with projects stalled by bureaucratic delays and technical refurbishment complexities, underscoring the fleet's vulnerability to unaddressed legacy design limitations like power generation inadequacies in early configurations.[54][55]Phasing Out and Replacements
The Canadian Army has initiated the phase-out of its LAV II variants, including the Bison armoured personnel carrier and Coyote reconnaissance vehicle, to modernize its fleet with enhanced protection, mobility, and capabilities. The Bison fleet, used for troop transport and support roles, is being replaced by 360 Armoured Combat Support Vehicles (ACSVs) based on the LAV 6.0 platform.[2] The ACSV program achieved initial operational capability in early 2025, following the acceptance of the first vehicles on October 20, 2023.[56] These replacements address limitations in the aging LAV II Bison by providing improved situational awareness, ballistic protection, and integration with contemporary command systems.[57] The Coyote reconnaissance variant's primary surveillance and patrolling roles are being supplanted by the Tactical Armoured Patrol Vehicle (TAPV), a lighter, more agile 4x4 platform designed for high-mobility operations.[58] Procurement of approximately 500 TAPVs began in the early 2010s, with deliveries completing by 2018, enabling the gradual retirement of Coyotes to reduce logistical burdens and enhance tactical flexibility.[58] While some LAV II vehicles remain in limited service or storage, the broader transition aligns with the Canadian Armed Forces' strategy to consolidate around the upgraded LAV 6.0 family for wheeled armoured capabilities, phasing out older 8x8 configurations.[2]Performance Assessment
Operational Strengths and Achievements
The LAV II family, encompassing variants such as the Coyote reconnaissance vehicle and Bison armoured personnel carrier, demonstrated superior mobility in operational environments, achieving road speeds of up to 100 km/h and operational ranges exceeding 650 km on a single tank of fuel.[15][43] This wheeled 8x8 configuration provided enhanced strategic and tactical deployability compared to tracked alternatives, enabling rapid response in peacekeeping and reconnaissance missions while incurring lower maintenance costs.[41] In reconnaissance roles, the Coyote variant excelled through its integration of advanced sensor suites, including thermal imaging and laser rangefinders, paired with a 25 mm M242 Bushmaster chain gun for suppressive fire, allowing crews to conduct surveillance and target acquisition at extended ranges without compromising stealth.[13] Military assessments highlighted the vehicle's reliability in austere conditions, with over 200 units of the Coyote entering service in 1996 and sustaining high availability rates across NATO operations.[41] Operational achievements included effective deployments by Canadian forces in Bosnia under UNPROFOR from 1993 to 2000, where Bison variants supported patrols, medical evacuations, and command functions, leveraging their modular design for rapid role adaptation.[41] The Coyote further proved its value in Kosovo in 2000 and Bosnia in 2001, earning praise from units like the Royal Canadian Dragoons for robust surveillance performance in dynamic threat environments; similar successes extended to Afghanistan in 2002 and domestic security operations such as G8 summit protection.[41][43] These missions underscored the LAV II's versatility, contributing to its status as a cornerstone of the Canadian Army's mechanized capabilities and prompting ongoing procurement and upgrades.[14]Criticisms and Limitations
The LAV II's light armor, primarily constructed from aluminum alloy, offers protection primarily against small-arms fire and artillery fragments up to 152 mm at 30 meters but proves inadequate against modern anti-tank threats such as rocket-propelled grenades or guided missiles, rendering it vulnerable in peer or near-peer conflicts.[59] Instances of Canadian-supplied LAV variants deployed by Saudi Arabia being destroyed by Houthi forces using basic anti-tank weapons in 2019 highlight this limitation, with at least two vehicles reported lost to such attacks.[60] Wheeled configuration exacerbates survivability issues, as tire and suspension vulnerability to fragmentation and mines has been observed in similar 8x8 vehicles during the Ukraine conflict, where wheel damage immobilized units despite intact hulls.[61] Maintenance demands pose significant operational limitations, with the vehicle's drivetrain and suspension experiencing accelerated wear in off-road or extreme environments, including corrosion of components like drive shafts in arid conditions akin to those encountered by related LAV-25 models in the Middle East.[62] Logistics support challenges, including parts shortages and high repair times, have historically reduced fleet readiness, as documented in early LAV program analyses where supply chain delays impacted mission availability.[63][64] Early variants also faced power generation shortfalls for electronics and weapons systems, necessitating upgrades like larger alternators in the LAV 6.0 to mitigate electrical limitations during sustained operations.[55] Tactically, the LAV II's design prioritizes speed and reconnaissance over heavy engagement, making it fragile in prolonged direct combat; operators have noted requirements to avoid symmetric threats, relying instead on maneuver to compensate for thin protection.[65] Amphibious capabilities, while present, are constrained by water depth limits (up to 1.5 meters at 10 km/h) and challenges transitioning from water to land, particularly in surf or soft terrain, which can strand vehicles or expose crews.[66] Crew safety concerns include ergonomic issues, such as seat mechanisms in comparable LAV-25 variants that failed under impact, contributing to fatalities in training incidents as of 2015.[67] These factors collectively restrict the LAV II to support roles, with upgrades addressing some deficiencies but not altering core trade-offs between mobility and durability inherent to light wheeled platforms.[68]Comparative Analysis
The LAV II Bison, an 8x8 wheeled armored personnel carrier, prioritizes mobility over heavy protection, achieving on-road speeds of 100 km/h and off-road speeds of 65 km/h with a range of 643 km on roads and 500 km off-road, supported by its 275 hp diesel engine and independent suspension.[30] In comparison to the tracked M113, which tops out at approximately 64 km/h on roads and offers superior cross-country traction due to its continuous tracks, the Bison excels in strategic deployment and rapid road marches but exhibits reduced stability and traction in soft terrain or steep inclines beyond 60% grades.[30] The Stryker, another 8x8 wheeled vehicle, matches the Bison's road speed at around 100 km/h but weighs significantly more at 18.5-19 tonnes versus the Bison's 13 tonnes, enabling better payload capacity for add-on armor while fording depths of 1.2 meters rather than the Bison's standard amphibious capability of 10 km/h in water.[69] Protection levels on the LAV II Bison provide resistance to small arms fire up to 7.62 mm, suitable for rear-echelon and peacekeeping roles, but lack the mine-resistant underbelly or advanced slat armor options found on the Stryker, which achieves STANAG 4569 Level 1 base protection upgradeable to Level 4 against 14.5 mm projectiles and artillery fragments.[15] The M113's aluminum armor offers equivalent small-arms protection but greater vulnerability to modern anti-tank weapons without upgrades, and its tracked design distributes weight better against mines compared to the Bison's tires, though both predate widespread IED threats observed in post-2001 conflicts.[2] Armament on the Bison is limited to a 7.62 mm C6 machine gun, emphasizing transport over combat, whereas Stryker variants support remote weapon stations with .50 caliber or automatic grenade launchers, and some M113 upgrades include .50 caliber heavy machine guns, reflecting the Bison's role in non-frontline support tasks like medical evacuation and command.[15]| Vehicle | Configuration | Weight (tonnes) | Max Speed (km/h) | Amphibious | Armament | Troop Capacity |
|---|---|---|---|---|---|---|
| LAV II Bison | 8x8 wheeled | 13 | 100 (road) | Yes, 10 km/h | 7.62 mm MG | 2 crew + 8 |
| M113 | Tracked | 12.5 | 64 (road) | Kit-dependent | .50/.30 MG | 2 crew + 11 |
| Stryker ICV | 8x8 wheeled | 18.5 | 100 (road) | No (fords 1.2 m) | RWS .50/MK19 | 2 crew + 9 |