海军科技

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海军科技

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Naval research tree

没有炮手就位dlc

没有激活炮手就位炮手就位的科技树。

海军科技科技树解锁了新舰船和海军入侵的新科技。可以在研究界面中陆军学说和海军学说的选项卡之间找到。海军科技树上有31种不同的科技。28级不同的舰船，分为了7种类型，还有三个海运科技。请注意，第一种海军运输技术运输船，是执行海军入侵所必需的。还要注意的是，舰船的肖像上有一颗蓝色的钻石，表示它是一艘主力舰。主力舰设计用于在水面战斗中击沉敌舰，除了航母是通过其搭载的近距离空中支援机（CAS）提供轰炸外，其余的主力舰可以进行对岸炮击。

驱逐舰

最小型的屏卫舰，屏卫效率十分重要，因为主力舰需要在屏卫舰的保护下免受敌方小型舰艇鱼雷侵害（鱼雷虽然命中率低，但是击中后能对大型舰艇造成成吨伤害）。驱逐舰是廉价的屏卫舰，可以躲避大口径火力，增加防空能力，并让您侦察和对抗潜艇。

图标 (整体)	科技名	研究年份	基础消耗时间	先决条件	描述	效果
	驱逐舰 I	1922	127.5		为了确保运输船的安全，第一次世界大战的驱逐舰需要更改它们的定位并改变它们的设计。新的设计将拥有更多的鱼雷来增加与敌人交火的机会。	解锁 驱逐舰 I
	驱逐舰 II	1936	170	驱逐舰 I	更长的鱼雷射程和更快的装填时间，外加诸如高角炮塔的新设计将使我们的驱逐舰变成更高效的多面手。	解锁 驱逐舰 II
	驱逐舰 III	1940	170	驱逐舰 II	为了应对来自空中以及水下的威胁，新型驱逐舰必须装备有雷达和更加先进的防空与反潜武器。	解锁 驱逐舰 III
	驱逐舰 IV	1944	170	驱逐舰 III	现代驱逐舰必须拥有多种不同的索敌装备，新型的深弹投放系统以及与以前的驱逐舰相比更大的吨位。	解锁 驱逐舰 IV

巡洋舰

轻巡洋舰-一种轻型屏卫舰。巡洋舰擅长于消灭其他屏卫舰，它的主要职责是保护主力舰不受到敌方中携带鱼雷的轻型舰船的攻击，但巡洋舰也能发射威力强大的鱼雷，如果她们离得足够近的话，能够伤害到大型船只。

重巡洋舰-一种非常灵活的装甲巡洋舰，对于那些无力建造大型主力舰的国家来说，这是一个不错的选择。重型巡洋舰可以承受大量的攻击并携带大量的火力。

图标 (整体)	科技名	研究年份	基础消耗时间	先决条件	描述	效果
	轻巡洋舰 I	1922	127.5		快速灵活的轻巡洋舰仍然是执行侦察任务的一个不错的选择。	解锁 轻巡洋舰 I
	轻巡洋舰 II	1936	170	轻巡洋舰 I or 重巡洋舰 II	虽然战后的条约对轻巡洋舰提出了诸多限制，但是人们还是在条约的限制内设计出了火力出众的轻型船只。	解锁 轻巡洋舰 II
	轻巡洋舰 III	1940	170	轻巡洋舰 II or 重巡洋舰 III	现在条约的限制解除了，人们可以设计更大也更重的巡洋舰，不过较弱的火力使它们还只能被划分为轻巡洋舰。	解锁 轻巡洋舰 III
	轻巡洋舰 IV	1944	170	轻巡洋舰 III or 重巡洋舰 IV	由于战术中常常被用于保护其他大型船只，现代轻巡洋舰可以摆脱过去的种种限制并专心应对来自空中的威胁。	解锁 轻巡洋舰 IV
	重巡洋舰 I	1922	127.5		华盛顿海军条约设立的目的就是为了避免巡洋舰以及其他舰种的竞赛，然而这看起来是不可避免的。通过削弱装甲，军舰上可以装备的武器大大增多。	解锁 重巡洋舰 I
	重巡洋舰 II	1936	170	轻巡洋舰 II or 重巡洋舰 I	虽然人们在条约中做了很多努力，但是在轻巡洋舰上装备更重的武器仍然是一种很有效的方法，尽管装甲依然十分贫弱。	解锁 重巡洋舰 II
	重巡洋舰 III	1940	170	轻巡洋舰 III or 重巡洋舰 II	由于越来越多的国家开始无视条约的限制，人们现在可以建造装甲更重更平衡的重巡洋舰了。更好的防空武器能使它们在对空战斗中发挥更大的作用。	解锁 重巡洋舰 III
	重巡洋舰 IV	1944	170	轻巡洋舰 IV 或者 重巡洋舰 III	这些重巡洋舰的最终型号往往更长、更大也更重，它们还装备有高射速的速射武器。	解锁 重巡洋舰 IV

战列巡洋舰

一种攻击能力接近战列舰的大型主力舰，但用较弱的装甲换取更快的速度。战列巡洋舰可以承受大量的打击和携带大量的火力。

图标 (整体)	科技名	研究年份	基础消耗时间	先决条件	描述	效果
	战列巡洋舰 I	1922	127.5		一战之后战列巡洋舰的火力竞赛催生出了几种火力强大，牺牲了装甲来获得相对战列舰的航速优势的设计。	解锁 战列巡洋舰 I
	战列巡洋舰 II	1940	170	战列巡洋舰 I 或 战列舰 III	为了保持对现代战列舰的速度优势，改进并且重新定位后的战列巡洋舰装甲更加贫弱，但它们现在拥有了更好的火控、索敌以及对空防御系统。	解锁 战列巡洋舰 II

Battleships

The largest capital ship with the biggest guns and strongest armor that money can buy. Such an expensive investment deserves proper support of smaller screening ships. Battleships can take a lot of hits and carry a lot of firepower.

Icon (generic)	Technology	Year	Base cost	Prerequisites	Description	Effects
	Battleship I	1922	127.5		Considered by some to be a relic of a bygone era of naval warfare, by others as the most impressive ships ever built, no one can deny that these remnants of the battleship arms race constitute some of the most heavily armed and armored vessels ever built.	Unlocks Battleship I
	Battleship II	1936	170	Battleship I	With improved stability and range, a new generation of battleships improve upon previous designs while remaining within limits stipulated by naval treaties.	Unlocks Battleship II
	Battleship III	1940	170	Battlecruiser II or Battleship II	Thicker armor, stronger engines, a battery of high-caliber guns and improved anti-air capabilities can allow battleships to remain relevant, if correctly employed, in a world where naval warfare is increasingly dominated by aerial support.	Unlocks Battleship III
	Battleship IV	1944	170	Battleship III	As the world sees what may be the last major battleship confrontations, the importance of heavy armaments and anti-air turrets is greater than ever.	Unlocks Battleship IV
	Super-Heavy Battleship I	1936	170	Battleship II	The current state of the world no longer has any room for abiding by naval treaties. Without these limitations, we can focus entirely on creating the heaviest, most well-armed battleships of all time, able to engage multiple lesser vessels.	Unlocks Super-Heavy Battleship I
	Super-Heavy Battleship II	1944	170	Battleship IV or Super-Heavy Battleship I	An improvement on our earlier super heavy design with stronger weapons and improved fire control systems.	Unlocks Super-Heavy Battleship II

航空母舰

A capital ship able to carry wings of powerful carrier capable aircraft into battle. Also useful as a floating airfield you can position off the coast of your enemy.

Icon (generic)	Technology	Year	Base cost	Prerequisites	Description	Effects
	Carrier I	1922	127.5		Many military theorists believe that naval aviation is the future. Converting old capital ships and ocean liners to carry aircraft will be the first step towards utilizing these new doctrines.	Unlocks Carrier I
	Carrier II	1936	170	Carrier I	As work begins on the first keel-up carrier designs, we must ensure that these ships have the range and speed to keep up with the rest of our navy, while respecting the post-war naval treaties.	Unlocks Carrier II
	Carrier III	1940	170	Carrier II	Improved construction methods and more specialized systems like deck edge elevators allow these carriers to transport more planes more efficiently.	Unlocks Carrier III
	Carrier IV	1944	170	Carrier III	With many naval treaties now increasingly ignored, we can proceed to build carriers capable of transporting more planes than ever to secure air superiority cover.	Unlocks Carrier IV

潜艇

The role of the submarine is to hunt down enemy shipping and not have to challenge a superior enemy fleet directly to hurt them. Submarines employ stealth and powerful torpedoes to destroy enemy convoys. Submarines can also fill a role in regular fleet combat should the enemy be low on submarine detection. A submarine starts out hidden and is either spotted if it gets too close to a destroyer or after firing a torpedo after which it will try to escape. It won't be an effective weapon against an enemy with a proper fleet, but unescorted capital ships won't have much defense.

The goal of the submarine is primarily to attack your enemy's economy by preying on convoy routes. For example:

• Attacking convoys along an enemy trade route will deny them foreign resources.
• A nation split across the globe like Britain must convoy home resources to their capital area from many places in its empire to use them, making them vulnerable to submarine raiding.
• When receiving lend lease, convoys carrying equipment can be sunk and will be lost forever.
• When deploying troops on foreign theaters of war a nation must ferry supply and reinforcement equipment to them. By taking out these convoys their troops will be weaker and easier to defeat.
• Troops being transported or during a planned invasion may be attacked leading to them being wiped out or severely weakened. You always want to be very careful and guard your transport routes before sending troops somewhere in war time.

Icon (generic)	Technology	Year	Base cost	Prerequisites	Description	Effects
	Submarine I	1922	127.5		Submarines are stealthy vessels designed to take out undefended convoys. The early models from the Great War pave the way for new methods of naval warfare.	Unlocks Submarine I
	Submarine II	1936	170	Submarine I	Better armed and more stable, new submarine designs are made to take advantage of advancements in naval tactics and have longer range, being able to attack distant convoy routes.	Unlocks Submarine II
	Submarine III	1940	170	Submarine II	The role of the submarine in the fleet outside of convoy attacks is still under debate. Achieving a balance between combination of speed, range and weaponry will be key to the necessary model.	Unlocks Submarine III
	Submarine IV	1944	170	Submarine III	Increased test depth and efficient layouts will be features of the modern submarines, taking advantage of field experience to select appropriate armaments and engines.	Unlocks Submarine IV

Transports

Icon	Technology	Year	Base cost	Prerequisites	Description	Effects
	Transport Ship	1922	127.5		Ship designed solely for troop movement, without any defensive capabilities.	Troop convoy requirements: -50% Naval Invasion Capacity: +10
	Landing Craft	1940	170	Transport Ship	Dedicated invasion craft make landing in hostile territory slightly less of a headache.	Invasion Preparation Time: -50% Invasion Defense: +15% Naval Invasion Capacity: +40
	Advanced Landing Craft	1944	170	Landing Craft	Advanced Landing craft means that our boys can get on the beach quicker and more effectively during an invasion.	Invasion Defense: +50% Naval Invasion Capacity: +100 Amphibious invasion speed: +25%

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