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SAFT - Al-Ago Batteries for Australian MU90 Torpedoes

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: 19 July, 2007  (Application Story)
Saft has been awarded a contract of around 5 million euros by DCNS, the French naval defence systems group, to supply Al-AgO (aluminium-silver oxide) seawater activated propulsion batteries for lightweight MU90 torpedoes currently under construction for the Australian Navy. The MU90, commercialised by EUROTORP, is a new generation torpedo designed to combat modern, deep-diving submarines carrying advanced countermeasures and Saft's unique Al-AgO battery technology makes a major contribution to its exceptional speed and agility by delivering the optimum combination of high power and excellent endurance.
The project for the Australian Navy follows DCNS' other export contracts through EUROTORP (Italy, Germany, Poland, Denmark) for the MU90 torpedo. Following previous orders from DCNS for MU90 propulsion batteries for those Navies, as well as similar orders for batteries for its Black Shark heavyweight Torpedoes (developed jointly between DCNS and WASS) for the navies of Chile, Malaysia and Portugal, Saft has consolidated its position as a major supplier to the torpedo market contract.

DCNS has designed the MU90 energy section to be fast and agile while ensuring range and diving capabilities comparable to those of current-generation heavyweight torpedoes. Its skewed multi-blade electric pump-jet propulsor is powered by a Saft Al-AgO battery, capable of delivering twice as much energy and power as conventional silver-zinc (Ag-Zn) batteries of the same mass and volume. The Al-AgO technology, which is unique to Saft, also has the advantage of a long, maintenance-free, storage life of up to 12 years.

The Saft battery provides the MU90 and the heavyweight Torpedoes with extremely long endurance, and it is capable of operating without any degradation in water depths of several hundred meters while enabling navigation capability in water depths up to 3 m.

Saft will deliver the Australian Navy's MU90 batteries to DCNS over the next three years.

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