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USSF Holland (SS-1)

USSF Holland (SS-1)

A 1:1 scale replica submarine of the USS Holland. Part of the USSF series by Eskander.

Replicates: USS Holland (SS-1), 1900-1905
Variants: 3; Replica, Light Retrofit (mk2), Europan Retrofit (mk3)
Crew Size: 4-6, Highly recommend at least 3 human players for replica/mk2 variants
Difficulty: High (custom maneuvering mechanics, expanded crew roles, limited technology/convenience, significant vulnerabilities)
Barotrauma Type: Scout

Gameplay Description: A small crewed submarine of medium complexity replicating one of the first modern submarines, the USS Holland (SS-1) of 1900, that imitates early submarine technology and focuses on distinct crew roles for operation that mirror the real submarine.

General Characteristics:
Size: 16m L x 6m H
Power Source: 35kW from 1 gasoline engine
Max Speed: 11km/h
Depth Change System: Floodable Main Ballast Tank + Diving Plane maneuvering
Weapons: 1 x fixed torpedo tube, 1 x fixed dynamite gun (mk3 replaces with 1x functional coil gun)

For a short history description, refer here.
US Navy Video on John Holland
Technical Explanation of USS Holland
History Channel Special on John Holland

Highly Recommended to have 3+ human players; few functions can be performed by AI. Essential roles listed below. For full details on roles, refer here.

Captain/Navigator: Stands in the conning tower, using the periscopes (or sonar in mk2) to view the surroundings and issue commands to the crew. Recommend becoming versed in how to efficiently issue commands as well as familiarity with all functions of the ship. Example: Engines, Full, Ahead -- (who, what, more detail). (In mk3 variant, the captain/navigator can conduct full maneuvers with navigation console)

Engine Operator (Mechanic or Engineer): In the engine room, this operator controls the gears and clutches that change the thrust from the propeller and if the dynamo is charging the batteries. Recommend familiarty with engine controls, and how the gas engine powers the submarine.

Helmsman (Assistant): Just aft of conning tower, helmsman adjusts the ballast tank with a flood valve and an air valve, as well as controls the diving engine (diving plane angle). Recommend familiarity with the helm maneuvering controls and principles.

Gunner (Security): In the forward compartment, this crewman loads, aims, and fires torpedos as well as triggers the dynamite gun on command. Recommend familiarity with gun systems and their limitations.

This submarine has custom systems that differ from vanilla Barotrauma behavior. Control of vessel is done by multiple members, power grid and components function differently, and depth change is done through manual blowing/flooding of ballasts along with dive plane manipulation.
For full details on how to use each system/function, refer here.