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Lightweight Torpedo Upgrade

Project Type

Project Replace


To upgrade the Canadian MK 46 Mod 5A (Shallow Water) Lightweight Torpedo to improve fleet survivability against evolving near and medium-term underwater threats.


The upgraded Lightweight Torpedo shall be capable of unrestricted employment in oceanic, shelf and littoral maritime environments, in water temperatures and salinity worldwide (across the range of polar, temperate and equatorial latitudes) as well in various sea states and water depths. The upgraded Lightweight Torpedo shall deliver effective performance in northern and Arctic waters, where the presence of sea ice, either in pack or broken form, is routinely expected. It shall be capable of attacking and destroying submarine contacts operating at the ice-edge. The upgraded Lightweight Torpedo shall be able to operate effectively and with relative impunity in an operational environment characterized by the presence of modern Self Protective Measures.

Funding Range

$500 million to $1 billion

Anticipated Timeline (Fiscal Year)

Options Analysis Phase
Definition Phase
Implementation Phase
In Progress
Initial Delivery
Final Delivery

Defence Capability Areas

Defence Capability Investment Areas

Key Industrial Capabilities

Not applicable.

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