Retrofit IFE

The Internal IFE option is designed to be temporarily fitted to the inside of the submarine escape tower in the event of surface abandonment in high seas.

Key Featrues.

• Greatly improves safety of personnel during emergency evacuation

• Extends the freeboard of a submarine by 1m

• No modification required in order to retrofit an IFE to an existing submarine.

Operation

When required the IFE is lifted into the escape tower coaming. When in position below the escape hatch the IFE is locked in place and water sealed by inflating the sealing bladder located around the fixed ring. Controls for the bladder are located next to the lifting handle allowing them to be operated by thumb while the hand is still gripping the lifting handle.

Once locked in place the escape hatch is remotely opened and the IFE can then be deployed by opening a single valve. The IFE inflation system is automatically staged to inflate the skirt and support ring sections first and then the tower section. HP Air used for inflation can be taken directly from the Submarine gas supply or from a cylinder.

The structure of the IFE incorporates strap fabric foot/hand holds which provide structural rigidity, tensioning vertically as the tower inflates and holding it firmly against the submarine casing.

The system enables an escape rate of 2-3 submariners per minute from each of the casing hatches which would otherwise be unusable in emergency situations.

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