Large Ships

Large Ships are massive heavy-armoured classes of ships with unique mechanics such as walkable bottom and top decks, anchoring, and sinking. They use Heavy Oil as fuel. Coastal Guns don't fire upon them.

Production & Repair

All Large Ships are built at a Dry Dock.

Unlike other vehicles, they cannot be repaired manually with a Hammer and Basic Materials. Their health, armour, and subsystems can only be repaired at a Dry Dock.

Before the repair can be started, the ship must be correctly aligned within the Dry Dock (starboard side to the dock), and the Dry Dock must be closed. Starting the repair consumes 10 Naval Shell Plating regardless of damage, instantly removes all holes and water from the ship, and then slowly restores the ship's health. The time to fully repair the ship depends on the health lost, and is up to four hours to repair from 0% to 100%. The progress bar in the Dry Dock menu during repair represents the ship's current health. If the repair is cancelled (such as by destruction of the Dry Dock) the ship will be left anchored and partially repaired.

Since you cannot use a Hammer on Large Ships, their only health indicator is the number of smoke stacks coming out of them:

one smoke: below 90%
two smokes: below 70%
three smokes (third one is slighly larger): below 50%
four smokes: below 30%
five smokes (fifth one is very large): below 10%

Squad Reservation

Large Ships can be reserved for a Squad to prevent any non members from toggling the ship's anchor or changing the engine settings and to allow members to eject any player from the driver seat with the "Eject Driver" button in the menu . The reservation lasts two days and can be reapplied if it expires.

Engines

Large Ships have two large engines in their bottom deck. Each engine can be set to either "Forward" or "Reverse" with a Wrench to modify the ship's handling. The status of each engine can be checked by pressing E on them.

When both engines are set to "Forward", the large ship moves forward with W, backward with S (very slow acceleration and speed), left/right with A/D (very slow rotation speed).
When both engines are set to "Reverse", the large ship moves backward with W, forward with S (very slow acceleration and speed), left/right with A/D (very slow rotation speed)
When one engine is set to "Forward" and one to "Reverse", the large ship rotates on itself with W in the expected direction or in the opposite direction with S (but with much slower acceleration and speed)

The large ship can always brake with Spacebar to quickly stop its movement.

The large ships have lowered speed and acceleration when they have water onboard.

Anchoring

Large Ships cannot be stored in Seaport stockpiles, they have to anchor somewhere. The anchor is toggled by pressing E in the anchor's interaction area on the ship deck, it is indicated by a white arrow in a white square symbol. If a large ship is reserved for a Squad only its members can toggle the anchor.

The anchor can only be dropped if the Large Ship is not within 150m of the Region border, doesn't have leaks, has no water inside, and isn't within 200m of an enemy large ship.

All ship ramps need to be retracted for the anchor to be raised.

When anchored, the behavior of Large Ships is changed:

They become immobile.
They becoming leak-proof; weapons still apply the same amount of HP damage but cannot create holes.
They can deploy their various ramps to dock
Most of their crew seats become inaccessible except for spotter, crane operator, and secondary armaments.
Their engine settings can't be modified
Additional functionalities are enabled

Naval Turrets

Some Large Ships have automated Naval Turrets that are active when anchored. They rapidly shoot mortar shells at any ships (except Large Ships) and amphibious vehicles on water that are between 75 and 200 meters from them, except if the targets are within 35m of a region border.

Sinking

With their massive health, large ships are hard to kill the normal way, but they can also be sunk.

When hit by certain heavy explosives or anti-tank weaponry while not anchored, there is a chance for a hole to appear in the hull where the projectile hits. The chance of a hole depends on the ship type and the weapon used:

Torpedo: 100%
Other High Explosive ordnance: 50% (75% for Submarines)
Armour Piercing ammo: 25% (37.5% for Submarines)
"penetrating" Explosive ammo: 25% (37.5% for Submarines)
Anti-Tank Kinetic ammo : 12.5% (18.75% for Submarines)
Other weapons cannot cause leaks.

If the hole is below the ship's water line it starts pouring water into the connected room, and into the adjacent rooms if the bulkhead doors aren't sealed. The ship's water line gets lower the more water is in the rooms, until the ship eventually sinks which kills everyone onboard. Water in rooms can be bailed using a Water Bucket (reloading with R) and thrown overboard. The holes in the hull can be repaired with a Hammer and cost 50 Basic Materials (85 for Submarines).

Bulkhead doors cannot be opened if the water level difference between the two adjacent rooms is too high (if one room has no water this occurs when the water level in the other room is knee-high and the water's surface start looking like the water outside the ship). The doors cannot be toggled by the enemy.

Torpedo Holes

Direct hits with Torpedoes will always cause a leak that it is much larger than other holes. This large hole must be repaired with 35 Metal Beams (50 for the Trident) though this only partially repairs it, reducing the leaks flow. In order to fully repair the large hole, the large ship must be repaired by a Dry Dock. Until then, the torpedo hole prevents the ship from dropping anchor.

Deployment & Respawn Point

Some Large Ship types allow players to set their Forward Spawn Point and respawn there. Some also allow players to deploy onto them from the Home Region.

Embarking

Every Large Ship has 2 Gangway ramps on each side that can be toggled with E when it's anchored. The ramps just require any kind of solid flat ground to successfully deploy (Shipyard, Beach, docks, Dry Dock, Navy Pier, etc...). They are narrow and are only useful for infantry to embark/disembark.

Friendly players in the water next to a large ship can press E to instantly climb aboard (teleported on the top deck).

List of Large Ships

Tips

Items dropped on a Large Ship deck are automatically placed in the ship’s closest stockpile (or inventory if it can't fit in) after 5 minutes instead of being despawned.
Players and vehicles are sheltered from Snow Storms when below the deck of a Large Ship.
They cannot be locked with L, unlike other vehicles.
They cannot be stolen by the enemy faction.
They can ram and instantly destroy amphibious land vehicles and Motorboats in their way.
They can also ram and instantly destroy ice on frozen bodies of water during Snow Storms
Crossing a Region border with a large ship takes 60 seconds instead of 5.
Unlike every other vehicles, Large Ships appear as on Map Intelligence.
A friendly ship can push a Large Ship to help it maneuver faster
The driver seat's entrance is always indicated by a circle inside a square.
During Rain Storms, a small amount of water can visually appear in the bottom deck of Large Ships. This doesn't have any effect on them.
On Warden large ships, the anchor is always next to the large white and blue painted area.
AI Naval turrets can can be used to get rid of enemy naval blockade (e.g. freighter wall).
Similar to smaller ships, Large Ships take damage when parked for too long under Bridges, however the grace period is longer.
Unanchored and unattended large ships are extremely vulnerable to enemies, as even a single player can create a hole that will slowly sink the ship. When not actively crewed, ships should always be anchored.
Unlike most vehicles, large ships never despawn.

Gallery

The Engines of a Titan Battleship
The anchor and its interaction area at the rear of a BMS - Bluefin
The BMS - Longhook viewed from the rear
A Conqueror-Class Destroyer being built in a Dry Dock
A Nakki-Class Submarine docked at a Dry Dock
Some of the systems aboard a battleship
Two leaks on a Large Ship, with one below the waterline pouring water into the room.
A leak on a Large Ship viewed from the outside
A flooded ship compartment with sealed bulkhead doors preventing water spreading to the adjacent compartment
A large leak made by a torpedo on a Large Ship