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Shadow

JFD

Excursion

 Excursion is a combined closed circuit oxygen / semi-closed circuit nitrox Tactical Diving Life Support System that provides an operational diving capability beyond the safe depth and time exposure limitations of oxygen. 

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To switch to the nitrox gas supply stored in a separate pressure vessel (cylinder), the diver rotates a multi-turn gas switch-over valve that provides a constant mass flow of nitrox gas into the breathing circuit. Following a gas switch from oxygen to nitrox, the diver may descend to a maximum depth of 24m using 60/40 nitrox or to 30m using 50/50 or 40/60 nitrox.

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Mission Specific

Shadow Excursion includes a nitro kit which facilitates greater depth capability for a range of mission profiles that may include:

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Submarine

exit/entry

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Very Shallow Water (VSW)

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Mine Countermeasures

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Amphibious

beach

reconnaissance

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Direct action below safe depth of oxygen

Enhanced Safety

When in nitrox mode, for increased safety, to provide a means of monitoring the oxygen level within the breathing circuit, an optional Oxygen Partial Pressure (PO2 ) monitor may be fitted that can also be configured to supply decompression management data. Additionally an optional nitrox cylinder pressure alarm may be fitted which via a mask mounted peripheral display, provides a low cylinder pressure warning.

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Excursion Configuration Options

Excursion can be tailored to suit specific mission requirements via the use of the following accessories: 

  • ï‚Ÿ Transport case

  • ï‚Ÿ Full face dual mode mask

  • ï‚Ÿ Bite mouthpiece and half mask

  • ï‚Ÿ Buoyancy compensation jacket

  • ï‚Ÿ Digicom through-water communications

  • ï‚Ÿ Dry suit inflation system

  • ï‚Ÿ Diver tool and test kit

  • ï‚Ÿ Maintenance tool and test kit

  • ï‚Ÿ 300 bar 2 litre non-magnetic composite cylinders

  • ï‚Ÿ 300 bar 3 litre low magnetic composite cylinders

  • ï‚Ÿ Spares package to suit customer requirements

Operational
Versatility

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For shallow water operations using a Tactical Diving Vehicle (TDV) where mission profiles are required to extend beyond the typical four hour single oxygen exposure limit, nitrox gas located on the diver and / or on the TDV, may be used for extending dive profile durations beyond four hours.

To support TDV operations, a bespoke dual flow nitrox gas switch valve may be used enabling the nitrox gas to be switched to low flow when on / in the TDV and high flow when undertaking free swimming.

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Performance

  • Maximum depth (m): 30***

  • Canister duration (hrs): 4-6**

  • Air temperature operation:  -20°C to +40°C

  • Sea temperature operation:  -2°C to +35°C

  • Freshwater temperature operation:  +1°C to +35°C

  • Pressure:  300 bar cylinders

 * Dependent upon local oxygen exposure limitations 

** Dependent upon diver work-rate and water temperature 

*** Dependent upon nitrox gas selected

Specification

  • Height: 720mm

  • Width: 430mm

  • Depth: 160mm

  • Weight: 11kg

Logistic Advantages

 The unique multi mission capability of Excursion and the Shadow family of Tactical Diving life support systems offers reduced through-life costs and logistical advantages that include:

  • A common platform reduces costs associated with training divers to use multiple life support systems

  • Common spares reduces the spares inventory

  • Common documentation / manuals

  • Reduced maintenance

  • Fully user serviceable

Shadow Excursion LSS

Designed to meet the full mission profile
of today's Special Operations diver.
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