The Inflatable Freeboard Extender (IFE) is used to assist submariners to escape rapidly from a distressed submarine in high seas. It provides increased evacuee safety whilst preventing flooding of the submarine through the open escape hatches. The IFE is an easy-to-operate, cost-effective and reliable escape system to complement a range of submarine safety equipment.

Two options are available, Internal Inflatable Freeboard Extender, designed to be fitted temporarily to the inside of a submarine escape tower in the event of surface abandonment in high seas, and the External Inflatable Freeboard Extender, developed as a permanent, reusable, escape option fitted between the rescue seat and the escape tower hatch of a submarine.

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