The New Upgraded M113AS4

" major upgrade of 350 of the Army?s in-service M113A1 vehicles. The upgrade will provide significant enhancements in protection, lethality and mobility whilst also providing improved supportability:

Protection. Protection will be significantly enhanced with the addition of add-on applique armour and spall curtains as well as a number of changes designed to enhance the vehicle?s mine protection.

Lethality. Lethality will be increased with the incorporation of a totally new electrically powered turret. The turret will be fitted with a quick-change barrel machine gun and a new day/night gun sight.

Mobility. The upgrade includes a new engine, transmission, drive train and driver?s controls. To maximise the benefits of this new driveline the suspension, track and road wheels are also being replaced.

Supportability. Improvements includenew electrical and fuel systems, improved habitability and a range of stowage layouts to meet the diverse requirements of the numerous user units. "

At the completion of the upgrade each of the variants will be designated as either an M113AS3 or M113AS4. The designations AS3 and AS4 refer to the carrying capacity of the upgraded vehicles. The AS3 variants have five road wheel stations per side and a Recommended Gross Vehicle Mass (RGVM) of 15,000kg. The AS4 variants have been stretched by 666mm, with an additional road wheel station per side and a RGVM of 18,000kg.

There are seven variants of the M113AS being produced. These are Armoured Personnel Carrier (M113AS4 APC); Armoured Fitters (M113AS4 AF); Armoured Recovery Vehicle Light (M806AS4 ARVL); Armoured Ambulance (M577AS3 AA); Armoured Mortar (M125AS3 AM); Armoured Command Vehicle (M577AS3 ACV); and Armoured Logistic Vehicle (M113AS4 ALV).
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http://www.defence.gov.au/dmo/lsd/land106/land106.cfm

more pics:

http://www.defence.gov.au/dmo/lsd/land106/MII3AS4_images.cfm

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