Navy reconstruction

BETA 0.31
NOT Ironman compatible
New game only

Language version: English, Polski
Year: only 1936

The mod is in beta. Of course I tested it, but there may be unknown bugs, Please report if you find any.

Special thanks to LAMP for permission to use his naval icons from Lamp’s Eqpt Icons mod
https://steamcommunity.com/sharedfiles/filedetails/?id=947459516

I created this mod to make the ships resemble the historical designs of the period more closely — at least in my opinion.

The base version of the game mixes old ships built before or during the Great War with ships constructed after the Washington Naval Treaty, when new limitations and definitions for warships were introduced. This was a time when new solutions, technologies, and construction standards were emerging.

The Washington and London Naval Treaties regulated the rules for building and classifying warships. While battleships and aircraft carriers were straightforward, cruisers and destroyers were often difficult to assign to the correct category.

However, in the literature, ships such as La Fantasque, Type 36, Fubuki, or Kagero are never called cruisers — only destroyers (large or super‑destroyers). Cruisers weighing 10,000 tons and armed with 203 mm guns are called heavy cruisers (Trento, County, Porter, New Orleans). Cruisers up to 8,000 tons with 152 mm guns are called light cruisers (Danae, Leander, La Galissonnière, Kuma, Agano). And what about the Town, Brooklyn, or Mogami classes? 10,000 tons (heavy), 152 mm guns (light). They were as large and durable as heavy cruisers but armed like light cruisers. In the literature, they are sometimes classified as heavy, sometimes as light.

Changes introduced in the mod
Ships from the T1 group have been split into two types:
T0 – ships built during WWI and shortly after.
T1 – ships built after the Washington Treaty, following new guidelines and emerging design trends.

In the tech tree, both are researched in the first stage: Early Destroyer / Early Cruiser. This shortens the number of ship development stages from 5 to 4.

A new ship has been introduced whose parameters are set between T1 and T2.

• T0 (old) – V/W class, Clemson
• T1 (early) – 1922 – emergence of new designs: ABCD, L’Adroit, Freccia–Dardo, Type 23, Farragut
• T2 (basic) – 1933 – Maestrale, Mahan
• T3 (improved) – 1939 – Fletcher, Gleaves, JKN class, Soldati
• T4 (advanced) – 1943 – C class, Allen M. Sumner, Battle

Large Destroyers (Destroyer Leaders)
Some countries built destroyers intended as flotilla leaders or to fight other destroyers (contre‑torpilleurs). They were larger and better armed than standard destroyers. In the literature, they are often described as:
Large destroyers – Fubuki, Chacal, La Fantasque, Leningrad, Type 34, Type 36, Tribal, Porter, Somers, Navigatori
Super‑destroyers – Mogador, Akizuki, Tromp, Capitani Romani

Countries that built large destroyers before 1936 already have the design unlocked.

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After WWII, the Washington and London Treaties had the greatest impact on cruiser development. They introduced the division into heavy (treaty) cruisers and light cruisers. Some nations also developed plans for a new class of large cruisers (cruiser‑killers), such as the Alaska class or the Japanese B65.

Constructions:

• T0 – early – all cruisers built up to the early 1920s
• T1 – 1924 – treaty cruisers; beginning of heavy cruiser construction with 203 mm guns (County, Pensacola, Duquesne, Myoko, Trento)
• T2 – 1931 – heavily armed light cruisers like Mogami. Their construction pushed other powers to build similar ships (Town, Brooklyn)
• T3 – 1939 – new cruiser designs: Fiji, Minotaur, Atlanta, Cleveland, De Grasse, M class, Agano, Chapayev
• T4 – 1943

After this period, only the Americans developed new cruiser designs at the end of the war (Fargo, Oregon City). Many years after the war, ships that had already been built were modified or ships designed before the war (De Grasse, Chapayev) were completed.

Changed cruiser armor parameters.
T1 – 40-60mm – light armor that protects cruisers only against the light armament of destroyers.
T2 – 70-80mm
T3 – 100-120mm
T4 – 150mm – the most heavily armored cruisers

• Cruiser hull – many types of light cruisers and AA cruisers armed with light/medium batteries
• Heavy cruiser hull – heavy cruisers and big light cruisers (Mogami, Cleveland) armed with medium or light‑medium batteries
• Large cruiser hull – special project: cruiser‑killers, Panzerschiffe, or large cruisers like Alaska. Today we know these ships were expensive and unnecessary… but at the time Germany, Japan, the USSR, and even the USA didn’t know that.

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WWII marked the end of the battleship era and the rise of naval aviation. The Washington Treaty halted battleship construction for nearly 15 years. Japan’s withdrawal from the treaty in 1934 and the Anglo‑German Naval Agreement of 1935 triggered a new wave of battleship building. However, wartime events proved the dominance of aircraft. Many battleship projects were halted (Lion, H‑39) or never started (Alsace, Montana, UP41).

Battleships are only divided into 3 tiers:

• T1 – early – battleships built until the early 1920s
• T2 – 1934 – first new battleships and battlecruisers. Dunqergue, Littorio, Scharnhorst, then Richelieu, Bismarck, KGV, North Carolina
• T3 – 1939 – last battleship designs, most of which were never built: Lion, Vanguard, South Dakota, Iowa, Alsace, H-39

The game allows building battleships after 1943, including modern ones, so I will not block this.

After that, the following changes have been made:
Scharnhorst – battleship.
Richelieu – battleship.

Battleship equipment
Armor and armament parameters have been adjusted.

Armament:
T1 – 280 – 320mm
T2 – 340 – 356mm
T3 – 380 – 406mm
T4 – 406 – 420mm

The armor of the ships was divided into thickness:
T1 – BC1 – 150mm – Renown
T2 – BC2 – 200mm – Kongo, Dunquergue, Kronshtadt
T3 – BB1 – 250mm – Coubert, Bretagne, Andrea Doria, Conte di Cavour, Tennessee
T4 – BB2 – 300mm – most battleships with 280 to 330mm armor
T5 – BB3 – 350mm – heaviest armored battleships such as Nevada, KGV, Nelson, Lion etc

Battleships in this mod are equipped as they were in real life. Therefore, the Queen Elizabeth-class battleship will have T3 armament and BB2 armor, Colorado T2 and BB2, Bismarck T3 BB2, etc.
British and American battleships continued to be formidable ships throughout the war and were a threat even to modern battleships.

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In the history of the development of aircraft carriers, there were 4 characteristic periods.

• T1 – early – conversion of battleships and cruisers into aircraft carriers and construction of new light units for testing new solutions.
• T2 – 1934 – start of construction of the first modern ships: Soryu, Yorktown, Ark Royal.
• T3 – 1937 – new, enlarged and improved ships of previous types: Shokaku, Illustrious, Implacable, Essex and Taiho
• CVL and CVE – 1939 – a new light hull for the light fleet carrier and eskort aircraft carrier.
• T4 – 1943 – Great Fleet Aircraft Carriers: Midway, Malta.

There are 3 types of aircraft carriers in this mod:

• CV – aircraft carrier – Carrier Hull

CVE and CVL. This was the original concept. The introduction of a special escort carrier project means I may revise this approach.