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Lublin class Project 767 Landing Ship, Medium - Design

The design of the Project 767 assault has an open cargo bay. It has the ability to operate, regardless of the sea state, with a carrying capacity of not more than 536 tons. The hull of the ship is nearly flat-bottomed and has a very shallow draft. The direct approach to the beach allows assault from the edge of the sea. In order to maintain a constant immersion in the loading of the shore, she regularly gets rid of the ballast 300 t Sea water, in proportion to the increasing weight of the load. When leaving the shore, the ship can use anchor winches before the approach to the coast. The anchor is suspended on the transom on the starboard side aft. The hull is divided into watertight bulkheads into several compartments. The bow includes a system rotation and lowering the bow ramp.

Behind them lies room 88 soldiers landing. The next room is intended for the 44 soldiers landing and sanitary block. For them is a room 3 officers of the landing and the crew: 2 rooms, two 4 non-commissioned officers, 6 aimed at seafarers ' and two 8 seamen. The next part of the hull occupies the kitchen block together with dining for the rest of the officers and crew of the ship and refrigerated Provision.At the stern there is the gym. In the compartment below is one the main engine and two generators, and two aft engines (on both sides) and one generator. Both compartments are separated Room 73. installed on the ship, the three engines Cegielski-Sulzer 6ATL25D power 1320kW (1800kW) each, not drive through reduction-reversing gearboxes shaft lines and three fixed propellers working in fixed nozzles. Each engine is adapted for remote control rotation of CSK and GSD by pneumatic system.

Gases from the main generating sets and, after cooling, water are exhausted overboard over the waterline. Ramp is part of the side painted black to avoid its contamination by removed the gases. Aft is room gear. under the aforementioned spaces between-deck is a series of fuel tanks and ballast.

The main deck isthe most important part of the Project 767 ship. The middle part is occupied by deck cargo, limited on both sides of the design of deckhouses. Deck loading is completed directly through bow and stern doors and ramp. Foldable and retractable bow-piece loading ramp when unfolded is 20 m long. At the same time it is a "stem" of the ship is not screened gate as it was for older Polish amphibious assault ships. At the time of loading or unloading its slope shall not exceed 15. The tilt ramp aft also does not exceed 15 at 14 m length. The hull is equipped with two ramps for operation type "ro-ro" - the design of the loading of vehicles which greatly streamlines the process of landing. In the old solution only bow ramp vehicles had to drive into the back of the ship loader which considerably increased the time of loading.

The amount of space on board which is 4.2 m and it is the result of "imposing" two room officer courses and scuttles the deckhouse structure. Deck load is the maximum load unit parking stations 9 to 45 tons each. The width of the parking position allows for the transport of vehicles in one row with a width of more than 2.5 m, and in two rows of vehicles with a width of 2.5 m from the bow position. The first bow position of the first park accepts only one vehicle.

There are approximately 30 variants of loading. A typical payload can consist of nine heavy fighting vehicles (in a row) or 17 vehicles such as trucks (two rows). Loading control is communicating with the crew by radio landing vehicle tanks and disposal system is light, easy maneuvers drivers on board. Fixing vehicles on board space is carried out remotely, which constitutes an important modification of this process. This is done by using hydraulic motors, loaded in two rows to a structural element placed in the middle of the deck cargo. With one row of cylinders directly to anchor the vehicle. The length of each parking position with both flatbed deckhouses are extended terminal screws. Each of them is two hydraulic cylinders. For storm conditions, mounting are used in addition to the attachment of the rope and chain, formed by hand.

Remote mounting of amphibious vehicle is done to prevent accidents which may be subject to the sailors manually fixing heavy equipment, due to the swaying of the ship hull in waves. Next to the 37 people crew (with the extra water and food for 5 days) she may carry 135 troops landing with personal weapons and equipment (with extra food and water for 24 hours).

The deck house on the right side is occupied by a corridor and a number of accesses to the various spaces for landing, the crew and the gym. The deck house on the left side has, among others, room filters and fans. The interior of the ship is airtight. The air in each individual compartment is exchanged and filtered through a filtering maintaining separate teams. All the decks of the ship are fitted with a spraying installation, used to wash contamination. In the aft part of the midship onboard deckhouses have an additional floor, where two more placed over the open deck cargo. The lower floor is occupied by radiocabine, a commander and two officers in two spaces. This story is called a deck officer. The highest tier deckhouse has the onboard navigation. On the high lattice mast are the navigation radar antenna, system diagnosis, "an inside and outside" and the navigation lights.Onboard aft deckhouses combined three designs that run the radio antenna and stern lights, using a blind spot aft firing guns.

Another new Project 767 feature is the system of traffic merger project, with two and more units of the same type in a longitudinal bridge. A further two ships connect using the disused ramp directly to the level of the complex, connected to the stern of the predecessor. The "ear" (on each side of the ramp in place of her submission to the fore) introduced the "chalice" installed in the transom stern and blocked pluggable, cross pins. Attempts to connect the ships at sea were carried out successfully. This allows the simultaneous unloading of equipment from several units at a very narrow passage on the beach or in the handling of vehicles between ships at sea (eg, from a damaged unit).

Armament is purely defensive. In the corners of the deckhouse are installed four marine artillery rocket kits-ZU-23-2MR "Wrbel-II". Each of them consists of dual cannons 23 mm and double launch rocket "Strzala-2 m". Unit Project 767 were the first ships, on which it is installed in the Polish Navy. The first serial copies received ORP Lublin (821). Because of the difficulties in the timely delivery of sets, the second of the ships ORP Gniezno (822) for some time had as the armament had four 23 mm cannons ZU-23-2 m "Sparrow-and", and the third ORP "Krakw" cruised without arms gunfire. Later, in the North Yard, all received the kits "Wrbel-II". During the operation the ships sets of rocket-artillery have been supplemented by-book set of passive interference "Corncrake". In the enter the twelve packets for 70 mm short-range. They were installed on both sides, after four on board and two on the deck. On the stern on the port side there are 6 smoke bombs.

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