This story and its photographs are the copyright of the Australian Department of Defence. Permission to reproduce may be sought from the Editor, Army Newspaper Unit by contacting armynews@defencenews.gov.au
The following story was filed by Cpl Brian Hartigan following a flying visit to Shoalwater Bay Training Area and published in ARMY Magazine in December 2000 under the title:

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Shoalwater provides pre-flight check for infantry mobility vehicle
bmaster s.jpg (41848 bytes)WITH ADI Limited last year confirmed as the preferred tenderer to supply the Australian Army with an Infantry Mobility Vehicle (IMV), development and end-user testing entered its final phase in Shoalwater Bay. And with 350 examples of the new armour-protected IMV set for delivery within the next two years or so, Brisbane-based 25/49RQR took the vehicle north for an intensive hands-on look to sort out last-minute bugs and to get an initial feel for SOPs with one of the army’s newest capabilities.
The Bushmaster, an all-Australian design, will provide the Australian Army with one of its most significant land-force assets — high-speed protected mobility.
CO 25/49RQR Lt-Col Stephen Porter says this trip was the last real chance for user evaluation and input — the last time the units of 7 Bde would get to assess the vehicle before delivery and the last opportunity to provide functional input to the way the vehicle is eventually delivered. "It is a trial about checking that the specifications the army wants from the vehicle are correct and checking that amendments and modifications so far made to the prototype are what we really want," Lt-Col Porter says. "There is a second aspect — and from my viewpoint an equally important point and that is to get an understanding of the capabilities of the vehicle, how to use it and to look at the beginnings of tactics, techniques and procedures at platoon level."
He says the unit is now working with what is the obvious strength of the vehicle. "Bushmaster has certainly exceeded its specifications in terms of ballistic protection and we have now started to take that into account. It also comes with a mounted 7.62mm machinegun so we do have a bit of reach and sustained firepower to use if we can manoeuvre the vehicle while the infantry are getting out."
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Manufactured from specially-developed Australian steel and employing ADI’s specialist welding processes, Bushmaster’s innovative design prioritises soldier safety and welfare, from its V-shaped, monocoque,   mine-blast-deflecting hull, to ballistic tolerance. Occupant safety from the effects of a landmine explosion with the equivalent of 9.5kg of HE detonated under any wheel or under the centre of the vehicle was demonstrated during development.
Following various upgrades and modifications during development, ADI now claims ballistic tolerance equal to or better than ASLAV and M113 with protection against 12.5mm ball and 7.62mm armour-piercing ammunition.
Coupled to a seven-speed automatic transmission, a Caterpillar turbo diesel affords Bushmaster a high power-to-weight ratio for long-distance high-speed cruising while offering exceptional low-end torque to deal with the most daunting terrain. Ride and handling are enhanced by all-wheel drive independent suspension featuring coil springs over double-acting shock absorbers on a wishbone configuration. Power-assisted steering, disc brakes and diff-locks add to its manoeuverability and performance.
Lt-Col Porter says he thinks that the wider army doesn’t yet fully appreciate what Bushmaster is about because people often ask if it is an APC or a truck. "Well it’s neither. It’s a unique capability that needs to be explored, developed and used. To class the Bushmaster as a B vehicle is to grossly under-sell it. It is an armoured vehicle but not quite an APC. It is too good in every respect to be classed as merely a B vehicle but at the end of the day it will be used to deliver infantry to where they are needed, fresh and in the best possible condition to do what light infantry do on the battlefield."
The performance of troops at their destination is greatly influenced by their method of transportation and Bushmaster’s outstanding protection and comfort will ensure they arrive in peak condition. It is ultimately designed for crew comfort and protection. Head and leg room are extremely generous, as are provisions for the internal storage of equipment. Large external storage lockers add further capacity.
Face-to-face passenger seating ensures secure body support under extreme braking conditions or in the event of collision. Large, ballistically protected side and rear windows provide excellent visibility and prevent problems of passenger disorientation. A spacious, air-conditioned interior can accommodate up to 10 fully-equipped soldiers, delivering them over long distances in comfort, ready to operate at peak capacity.
Fuel and hydraulic tanks are located outside the crew compartment to protect occupants from possible fires in the event of rupturing after mine blast. In addition, the fuel tank is fitted with fire retardant elements that prevent the explosion or deterioration of the fuel. A 270-litre water tank under the crew compartment, not only provides for soldier rehydration but also offers extra cushioning in the event of mine blast.
With the flick of a switch the driver can adjust tyre-inflation pressures on the move to suit the terrain via a central tyre inflation system. This system can automatically monitor inflation pressures and pump extra air as required to an individual wheel station — invaluable in the case of minor punctures when the tyre can maintain inflation despite air loss. In the event of major tyre damage, a run-flat capability is also included, allowing the vehicle to safely continue for up to 100km at only slightly reduced speed.

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Lt-Col Porter says the advent of Bushmaster is a significant boost to 25/49RQR after it had been badly hurt in aiding other units prepare for East Timor. "Our soldiers are very keen and excited by this vehicle. We have finally moved away from the Landrover-type, unprotected chassis to this vehicle and they are excited to be involved — especially our reserve elements. We can demand more of our reserve soldiers because we have a lot more to offer. Those who want to soldier at 25/49RQR can expect better training thanks to the integration with full-time soldiers and a better standard of equipment such as Bushmaster."
Bushmaster production is scheduled to commence next year at ADI’s Bendigo facility in Victoria, with the first of the 350 vehicles entering service within two years.
Bushmaster's vital statistics:
Configuration - 4WD
Max speed - 120km/h
Cruise speed - 100km/h
Fuel capacity - 385 litres
Drinking water - 270 litres
Max range - 1000km
Max fording Depth - 1.2m
Max gradient - 60 per cent
Max side slope - 30 per cent
Engine
Caterpillar 3126B ATAAC
6 cylinder
245kw (330bhp) at 2600rpm
Turbocharged
Air-to-air aftercooled
Transmission
ZF 7HP500 automatic
7-speeds forward
1 reverse
retarder
converter lockup
electronic control
Capacity
Nine-man section plus one
Defensive Suite
Protection exceeds ASLAV and M113
12.7mm ball and 7.62mm AP protected
7.62mm or 12.7mm machine gun
HE/smoke grenade launchers
Mine-blast, anti-armour and mortar protection
Variants
Troop
Command
Mortar
DFSW
Pioneer
Ambulance
Logistic
Carriage
Communications
HF
VHF
Environmental Systems
Split-system air-conditioner
Cooled drinking water

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