The escape system also includes a securing and releasing mechanism (not shown) for the lifeboat (2).
There is a supporting structure (not shown) for the lifeboat (2) situated inside the tunnel structure (4).
The access may be through doors in the lifeboat (1) canopy directly into horizontal seating decks.
The lifeboat (2) is a free fall type lifeboat and is stowed within the tunnel (4) in contact with the supporting structure.
The tunnel (4) is formed with passage access to the lifeboat (2) from several different deck levels (2a, 12b, 12c, 12d).
The securing and releasing mechanism includes means for retaining the lifeboat (2) within the tunnel structure (4) and may be in the form of typical known mechanical attachment assemblies.
The passage access may be in the form of access doors located adjacent the lifeboat providing direct access to the lifeboat from several decks (12a, 12b, 12c, 12d) simultaneously.