LAV III

The **LAV III** armoured vehicle (AV) is the latest in the Generation III Light Armoured Vehicle (LAV) series of armoured cars built by General Dynamics Land Systems, entering service in 1999.[1] It is based on the Swiss MOWAG Piranha IIIH 8x8.[2]

It was developed in Canada and is the primary mechanized infantry vehicle of the Canadian Army and the New Zealand Army.

## Development

By July 1991, the Canadian Armed Forces
 had identified the need to replace their aging fleet of 1960s and 1970s
 era armoured personnel carriers. As a result, $2.8 billion was
earmarked for the Multi-Role Combat Vehicle (MRCV) project by the sitting Conservative
 government. The mandate of the MRCV project was to provide a series of
vehicles based on a common chassis which would replace the M113 armored personnel carrier, Lynx reconnaissance vehicle, Grizzly armoured personnel carrier, and Bison armoured personnel carrier. The project was, however, deemed unaffordable and cancelled by March 1992.[3]

By 1994 after the Liberal Party had returned to government, the army was still in need of new vehicles. As a result, the army embarked on the Light Armoured Vehicle
 Project, which would adapt parts of the MRCV Project, and be
implemented incrementally to spread out the costs. Also, the requirement
 to replace the Bisons was dropped. The first phase of the project saw
the selection of the Coyote Reconnaissance Vehicle to replace the Lynx.

On August 16, 1995, it was announced that General Motors Diesel Division (later renamed GM Defense, and subsequently purchased by General Dynamics Land Systems of London, Ontario,
 had been awarded the contract to produce the LAV III which would
replace the Grizzly and a large portion of the M113 armoured personnel
carriers.[3]
 The LAV III would incorporate the turret and weapon system used with
the Coyote (which was produced at the same location), and the latest,
heaviest version of MOWAG's Piranha family which would be 'Canadianized'
 and built locally.

### Future

Main article: Future Canadian Forces projects

A Canadian LAV-III during exercise TRIDENT JUNCTURE

In July 2009, the Canadian Department of National Defence announced
that $5 billion would be spent to enhance, replace and repair the army's armoured vehicles. Part of the spending would be used to replace and repair damaged LAV III's due to wear and tear from operations in Afghanistan. As much as 33 percent of the army's light armoured vehicles were out of service.[4] Furthermore, the LAV III's will be upgraded with improved protection and automotive components.[5]
 The Canadian Armed Forces has lost over 34 vehicles and 359 were
damaged during the mission in Afghanistan. The Canadian army has lost 13
 LAV's and more than 159 were damaged by roadside bombs or enemy fire.[6]
 Of the $5 billion announced, approximately 20% of it will be used to
upgrade LAV III models. The upgrade will extend the LAV III life span to
 2035. The remaining $4 billion is to be spent on a "new family of land
combat vehicles".[7] The Department of National Defence considered the purchase of vehicles meant to accompany the Leopard 2 and to sustain the LAV III into combat. The CV90, the Puma (IFV) and the Véhicule blindé de combat d'infanterie were the most likely candidates for the role. A contract of 108 with an option for up to 30 more was considered,[8][9][10]
 but a combination of budget cuts and upgrades to the existing fleet of
LAV IIIs have led the Canadian Army to cancel its order for 108 CV90s.[11]
On October 21, 2011 the Canadian government
 announced a $1.1 billion contract to General Dynamics Land Systems to
upgrade 550 LAV III combat vehicles. The government said the upgrade is
needed to improve protection against mines and improvised explosive
devices (IEDs), which have been the cause of a number of Canadian deaths
 in Afghanistan. The improvements will also extend the service of the
vehicles up to 2035 and will boost troop mobility.[12][13][14]
 The upgrades include a new and more powerful engine, increased armour
protection, steering and brake systems. The turret hatches on the LAV
III would be made larger and improved fire control, thermal, day and
low-light sights, and data displays. The weight of the vehicle would
increase from 38,000 pounds (17,000 kg) to 55,000 pounds (25,000 kg).[15][16] The first of 66 upgraded LAV IIIs was delivered on February 1, 2013.[17]
 The success of the upgrade program and budget pressures lead to the
cancellation of the Close Combat Vehicle replacement program later that
year.[18]

## Design

### Mobility

Infantry dismounting from a LAV III at CFB Gagetown

The LAV III is powered by a Caterpillar 3126 diesel engine
 developing 350|hp|kW when chip locked to protect the driveline from
damage, but over 400HP if unlocked for wartime. If unlocked it requires
full-time 8x8 to avoid damaging the T-case and differentials}, and can
reach speeds above 100 kilometres per hour.[19] The vehicle is fitted with 8x8 drive and also equipped with a central tire inflation system, which allows it to adjust to different terrain, including off-road.[20][21] The LAV III is fitted with a modern anti-locking brake system (ABS) and a traction control system (TCS).[22] Unlike earlier versions of the LAV, the LAV III does not have amphibious capabilities.

The LAV III faces the same concerns that most other wheeled military
vehicles face. Like all wheeled armoured vehicles, the LAV III's ground pressure
 is inherently higher than a tracked vehicle with a comparable weight.
This is because tires will have less surface area in contact with the
ground when compared to a tracked vehicle. Higher ground pressure
results in an increased likelihood of sinking into soft terrain such as
mud, snow and sand, leading to the vehicle becoming stuck. The lower
ground pressure and improved traction offered by tracked vehicles also
gives them an advantage over vehicles like the LAV III when it comes to
managing slopes, trenches, and other obstacles.

The LAV III can somewhat compensate for these effects by deflating
its tires slightly, meaning that the surface area in contact with the
ground increases, and the ground pressure is slightly lowered.

However, wheels offer several advantages over tracked vehicles,
including lower maintenance for both the vehicle and road
infrastructure, quieter movement for improved stealth, greater speed
over good terrain, and higher ground clearance for protection against
mines and improvised explosive devices.

The LAV III's turret gives the vehicle a higher centre of gravity
than the vehicle was initially designed for. This has led to concerns
that the vehicle is more likely to roll over on uneven terrain.

While there have been several recorded rollovers (about 16),[23]
 the most common cause was found to be unstable terrain, specifically
road shoulders unexpectedly giving away beneath the vehicle.[24]
 The weight balance of the LAV III is taken into consideration during
driver training, largely mitigating the chances of a rollover.

### Protection

ELAV with a Nanuk Remotely Controlled Weapon

The basic armour of the LAV III, covering the Standardization Agreement STANAG 4569 level III, which provides all-round protection against 7.62×51mm NATO small calibre rounds. A ceramic appliqué armour (MEXAS) can be added, which protects against 14.5×114mm
 heavy calibre rounds from 500 meters. In December 2008 the Government
of Canada awarded EODC Engineering, Developing and Licensing Inc. C$81.5
 million worth of contracts to provide for add-on-armour kits, modules
and spares for its LAV III wheeled armoured personnel carriers.[25][26] This armour kit is intended to provide increased protection against improvised explosive devices (IED), explosively formed penetrators and 30 mm caliber armour piercing rounds.[25][27][28][29][30][31] The LAV III can be also fitted with cage armour, which provides protection against shaped charges.
 The LAV III is fitted with a nuclear, biological, chemical (NBC)
filtration system accompanied with a GID-3 chemical detector and
AN/VDR-2 radiation detector systems.[32]
 The LAV III was designed to produce a very low and very compact
structure to minimize radar and IR-signatures. The LAV III also uses
heat-absorbing filters to provide temporary protection against thermal imaging (TIS), image intensifiers and infrared cameras (IR). General Dynamics is in the process of integrating the LAV III with an active protection system[33] based on the Israeli Trophy system.[34]

The majority of Canadian casualties in Afghanistan have occurred during a patrol aboard a LAV III.[35]
 This can be explained by the fact that the LAV III is the most commonly
 used Canadian armoured personnel carrier in theatre, and simply
represents a normal association between use and likelihood to encounter a
 mine or improvised explosive device.[36]
 The LAV III offers comparable or better protection than most other
infantry carriers used in Afghanistan. In an effort to improve
protection as a result of experiences in Afghanistan, future LAV III upgrades will likely include improved mine and IED protection.[37]

### Armament

The LAV III is fitted with a two-man turret, armed with the M242 Bushmaster
 25 mm caliber chain gun and a coaxial 7.62-mm machine gun. One more
5.56 mm or 7.62 mm machine guns is positioned on top of the turret. The
LAV III also has eight 76-mm grenade launchers in two clusters of four
launchers positioned on each side of the turret. The grenade launchers
are intended for smoke grenades.[19] In 2009, a number of LAV III's were modified with a Nanuk remotely controlled weapon station (RCWS) to provide better protection and to increase the chances of survival of the crew against improvised explosive devices and anti-tank mine threats on the battlefield.[38]

### Sights

The LAV III is equipped with a daytime optical Thermal Imaging System (TIS) and Generation III Image Intensification (II).
 The LAV III is equipped with a Tactical Navigation System (TacNav) to
assist in navigation and target location tasks. The LAV III is equipped
with a LCD monitor directly connected to the vehicle's external cameras, providing real-time images of the battlefield for the passengers.[19]