A floating dry dock is a type of pontoon for dry docking ships, possessing floodable buoyancy chambers and a "U"-shaped cross-section. The walls are used to give the dry dock stability when the floor or deck is below the surface of the water. When valves are opened, the chambers fill with water, causing the dry dock to float lower in the water. The deck becomes submerged and this allows a ship to be moved into position inside. When the water is pumped out of the chambers, the dry dock rises and the ship is lifted out of the water on the rising deck, allowing work to proceed on the ship's hull.
A large floating dry dock involves multiple rectangular sections. These sections can be combined to handle ships of various lengths, and the sections themselves can come in different dimensions. Each section contains its own equipment for emptying the ballast and to provide the required services, and the addition of a bow section can facilitate the towing of the dry dock once assembled. For smaller boats, one-piece floating dry docks can be constructed, potentially coming with their own bow and steering mechanism
In the Indian Navy floating docks are used to repair ships at sea or at port, in case the port does not have dry docking capacity of the required displacement. This allows the Navy to maintain mission readiness for extended periods of time, at the same time it reduces work load of permanent dry docks by taking up repair jobs and leaving permanent dry docks for shipbuilding.
A large floating dry dock involves multiple rectangular sections. These sections can be combined to handle ships of various lengths, and the sections themselves can come in different dimensions. Each section contains its own equipment for emptying the ballast and to provide the required services, and the addition of a bow section can facilitate the towing of the dry dock once assembled. For smaller boats, one-piece floating dry docks can be constructed, potentially coming with their own bow and steering mechanism
In the Indian Navy floating docks are used to repair ships at sea or at port, in case the port does not have dry docking capacity of the required displacement. This allows the Navy to maintain mission readiness for extended periods of time, at the same time it reduces work load of permanent dry docks by taking up repair jobs and leaving permanent dry docks for shipbuilding.
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