坦克设计

Updated for version 1.13.5

钢铁雄心 IV

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陆军学说

Picking a tank role in the tank designer.

Tank equipment modules are being unlocked through the armor technology tree for the base chassis, engine and armor modules. The main weapon modules are unlocked through the artillery technology. Additional supporting or special modules become available via the common tech trees (such as radios from the engineering tech tree).

Tank chassis

Tank chassis types

The chassis is the frame of the tank. Basic categories are light, medium, heavy, modern and amphibious, of which light, medium and heavy can be improved by research. Chassis define largest type of turret it can handle, thus limiting armament type of tank. This can be bypassed only by switching turret for fixed superstructure.

	Chassis	Year	Max Speed	Armor	Hardness	Reliability	Production Cost	Resource use per factory	Service Manpower
	Inter-War Light Tank Chassis	1922	4 km/h	10	80%	80%	1	1	2
	Basic Light Tank Chassis	1934	5 km/h	15	80%	95%	1.25	1	2
	Improved Light Tank Chassis	1936	6 km/h	20	80%	110%	1.6	1	2
	Advanced Light Tank Chassis	1942	7 km/h	25	80%	130%	2	2	2
	Inter-War Medium Tank Chassis	1922	4 km/h	20	85%	75%	2.5	1	2
	Basic Medium Tank Chassis	1938	5 km/h	30	85%	80%	2.5	1	2
	Improved Medium Tank Chassis	1940	6 km/h	40	85%	100%	3.2	1	2
	Advanced Medium Tank Chassis	1943	6 km/h	50	85%	120%	4	2	2
	Inter-War Heavy Tank Chassis	1922	3 km/h	35	95%	75%	10	1	2
	Basic Heavy Tank Chassis	1934	5 km/h	55	95%	80%	10	1	2
	Improved Heavy Tank Chassis	1940	5 km/h	60	95%	110%	10	11	2
	Advanced Heavy Tank Chassis	1943	5 km/h	75	95%	120%	12	21	2
	Modern Tank Chassis	1945	7 km/h	65	95%	120%	6	21	2
	Super-Heavy Tank Chassis	1943	4 km/h	90	100%	100%	28	32	2
	Amphibious Tank Chassis	1938	5 km/h	15	85%	110%	4.5	1	2

Engine

Engine types

Type of engine helps in certain uses of tank, either increasing maximum speed, reliability, defense and breakthrough, which can come at cost of higher production cost or fuel usage.

	Module	Max Speed	Breakthrough	Defense	Reliability	Fuel Usage	Production Cost	Design Cost
File:Tank module diesel engine.png	Diesel Engine				+25%	2	1	6Design cost
File:Tank module gas turbine engine.png	Gas Turbine	0.5 km/h +25%			–10%	4	3	6Design cost
File:Tank module gasoline engine.png	Gasoline Engine	0.5 km/h +15%				2	1	Default type (otherwise 6Design cost)
File:Tank module petrol electric engine.png	Petrol-Electric Engine		2 +15%	2 +15%	–50%	2	2 + 15%	6Design cost

Engine upgrades

It is possible to improve the stats of the engine by upgrading its level. Each level provides the same stacking effects.

Four upgrade levels are available at the beginning with additional levels unlocking after researching the appropriate technologies in the armor tech tree.

	Technology	Effects	Effects per upgraded level
	Basic Engine	Enables engine upgrade levels of 5-9	Max speed: 0.1 km/h Reliability: –1.5% Fuel Usage: 0.05 Production Cost: 0.1 Design Cost: 1Design cost
	Improved Engine	Enables engine upgrade levels of 10-14
	Advanced Engine	Enables engine upgrade levels of 15-17
	Modern Engine	Enables engine upgrade levels of 18-20

Suspension

A tank's suspension system is designed to support the weight of the tank and its crew, while also providing a smooth ride.

Tracked suspension

Tracked suspension are availible for all chassis types. Bogie suspension is default type with no additional production cost, other types increase certain stats for additional production cost.

	Module	Max Speed	Breakthrough	Reliability	Production Cost	Design Cost
File:Tank module bogie suspension.png	Bogie Suspension					Default type (otherwise 6Design cost)
File:Tank module christie suspension.png	Christie Suspension	+20%			1	6Design cost
File:Tank module interleaved roadwheels.png	Interleaved Roadwheels		4		2	6Design cost
File:Tank module torsion bar.png	Torsion Bar			+15%	1	6Design cost

Non-tracked suspension

Wheeled suspension is available after researching Early Truck, Half-track suspension is unlocked by researching Mechanized I. Non-tracked suspensions are only available for light chassis. They decrease production cost, decrease reliability and lower hardness.

	Module	Hardness	Reliability	Production Cost	Design Cost
File:Tank module half track suspension.png	Half-track Suspension	–30%	–10%	–5%	6Design cost
File:Tank module wheeled suspension.png	Wheeled Suspension	–40%	– 20%	–10%	6Design cost

Armor

The armor modules represent the processes used during the construction of the tank's chassis and its armor.

Armor types

At start of the game both riveted and cast armor are available after researching Inter-War Tank Development tech, welded armor is unlocked after researching Basic Armor Protection.

	Module	Armor	Breakthrough	Defense	Hardness	Production Cost	Resource use per factory	Design Cost
File:Tank module riveted armor.png	Riveted Armor		2	2		–20%		Default type (otherwise 8Design cost)
File:Tank module cast armor.png	Cast Armor	+30%	3	3	+2.0%	+20%		8Design cost
File:Tank module welded armor.png	Welded Armor	+30%	4	4			1	8Design cost

Armor upgrades

It is possible to improve the armor stats by upgrading its level. Each level provides the same stacking effects.

Four upgrade levels are available at the beginning with additional levels unlocking after researching the appropriate technologies in the armor tech tree.

	Technology	Effects	Effects per upgraded level	Resource use per factory
	Basic Armor Protection	Enables armor upgrade levels of 5-9	Breakthrough: 1.2 Max speed: −0.1 km/h Armor 2.5 Reliability: –1.5% Production cost: 0.2 Design Cost: 1Design cost	At level 5 and above: +1
	Improved Armor Protection	Enables armor upgrade levels of 10-14
	Advanced Armor Protection	Enables armor upgrade levels of 15-17
	Modern Armor Protection	Enables armor upgrade levels of 18-20

Turret

Turrets are the main source of breakthrough, representing visibility from vehicle, size of crew workspace and their workload. Type of chassis determine maximus size of turret. Size of turret determines size of the weapon it can mount. Smaller weapons can be always mounted. Fixed super-structure allows mounting of larger sized guns and provides a higher reliability rate though it comes at the cost of breakthrough. Fixed super-structure cannot mount AA guns as it cannot track the target or elevate the gun far enough to hit planes.

	Chassis Type	Module	Allowed roles	Maximum armament size	Max speed	Soft attack	Hard attack	Breakthrough	Defense	Reliability	Production Cost	Design Cost
File:Tank module light fixed superstructure.png	Light Medium Heavy Super-Heavy	Light Fixed Superstructure	Anti-air	Medium				−25%	3	+20%	0.75	2Design cost
File:Tank module light one man turret.png		Light One Man Turret		Small				7			0.5	2Design cost
File:Tank module light two man turret.png		Light Two Man Turret		Small				10			0.75	2Design cost
File:Tank module light three man turret.png		Light Three Man Turret		Small	−0.1 km/h			14			1	2Design cost
File:Tank module medium fixed superstructure.png	Medium Heavy Super-Heavy	Medium Fixed Superstructure	Anti-air	Heavy				−25%	3	+20%	1.5	2Design cost
File:Tank module medium one man turret.png		Medium One Man Turret		Medium		–10%	–10%	8			1	2Design cost
File:Tank module medium two man turret.png		Medium Two Man Turret		Medium				16			1.5	2Design cost
File:Tank module medium three man turret.png		Medium Three Man Turret		Medium	−0.2 km/h			24			2	2Design cost
File:Tank module heavy fixed superstructure.png	Heavy Super-Heavy	Heavy Fixed Superstructure	Anti-air	Super-Heavy				−25%	3	+20%	5	2Design cost
File:Tank module heavy two man turret.png		Heavy Two Man Turret		Heavy				18			5	2Design cost
File:Tank module heavy three man turret.png		Heavy Three Man Turret		Heavy	−0.2 km/h			22			5.5	2Design cost
File:Tank module super heavy three man turret.png	Super-Heavy	Super-Heavy Three Man Turret		Super-Heavy	−0.2 km/h		–10%	24		–10%	10 +50%	2Design cost
File:Tank module super heavy four man turret.png		Super-Heavy Four Man Turret		Super-Heavy	−0.5 km/h			35		−25%	12 +50%	2Design cost
File:Tank module modern turret.png	Modern	Modern Turret		Heavy				24			8	2Design cost

Weapons

A tank's weapon is one of its most distinguishing features. In addition to providing most, if not all, of the firepower of the vehicle, the main gun also determines which roles the design can fill. For example, mounting an anti-air gun will prevent the tank design from being used as a "tank".

Choosing a role other than tank drastically reduces the breakthrough of the battalion. Other than that, there are only minor differences in the base stats depending on the chosen role. It is important to note that different may receive different bonuses depending on researched technologies, doctrines or leaders.

	Module	Allowed roles	Weapon size	Breakthrough	Soft Attack	Hard Attack	Air Attack	Max Speed	Piercing	Reliability	Production Cost	Resource use per factory	Design Cost	Research Year
File:Tank module heavy machine gun.png	Heavy Machine Gun		Small		8	2			6		0.5		1Design cost	1918
File:Tank module flamethrower.png	Flamethrower	Flame	Small		5					–5%	0.5		1Design cost	1939
File:Tank module flamethrower 2.png	Advanced Flamethrower	Flame	Small	6	12					–5%	1.2		1Design cost	1941
File:Tank module auto cannon.png	Automatic Cannon		Small		15	5		−0.1 km/h	20	–10%	1.5		1Design cost	1936
File:Tank module auto cannon 2.png	Improved Automatic Cannon		Small		20	7		−0.1 km/h	35	–10%	2		1Design cost	1940
File:Tank module aa gun.png	Basic Anti-Air Gun	Anti-air Tank	Small		6	2	18		10	–10%	2		1Design cost	1936
File:Tank module aa gun 2.png	Improved Anti-Air Gun	Anti-air Tank	Small		8	5	36		20	–10%	3	21	1Design cost	1940
File:Tank module aa gun 3.png	Advanced Anti-Air Gun	Anti-air Tank	Medium		10	5	46		30	–10%	4	31	1Design cost	1943
File:Tank module small cannon.png	Small Cannon		Small		10	6		−0.1 km/h	25	–10%	1.5		1Design cost	1934
File:Tank module small cannon 2.png	Improved Small Cannon		Small		15	15		−0.1 km/h	50	–10%	3		1Design cost	1936
File:Tank module medium cannon.png	Medium Cannon	Tank destroyer Light Tank	Medium	2	20	15		−0.2 km/h	60	–15%	3	11	1Design cost	1939
File:Tank module medium cannon 2.png	Improved Medium Cannon	Tank destroyer Light Tank	Medium	4	32	20		−0.3 km/h	90	–15%	4	211	1Design cost	1941
File:Tank module close support gun.png	Close Support Gun	Artillery	Small		25	5		−0.2 km/h	10	–10%	4	1	1Design cost	1936
File:Tank module medium howitzer.png	Medium Howitzer	Artillery Light Tank	Medium	–2	35	1		−0.3 km/h	20	–20%	4	21	1Design cost	1939
File:Tank module medium howitzer 2.png	Improved Medium Howitzer	Artillery Light Tank	Medium	–2	45	2		−0.4 km/h	30	–20%	5.5	311	1Design cost	1941
File:Tank module rocket artillery 1.png	Rocket Launcher	Artillery Tank	Medium	–4	25	1		−0.1 km/h	2	–10%	4	12	1Design cost	1940
File:Tank module rocket artillery 2.png	Improved Rocket Launcher	Artillery Tank	Medium	–4	35	1		−0.2 km/h	2	–10%	5	12	1Design cost	1943
File:Tank module high velocity cannon.png	Basic High-Velocity Cannon	Tank destroyer	Small		10	26		−0.1 km/h	68	–5%	3	22	1Design cost	1936
File:Tank module high velocity cannon 2.png	Improved High-Velocity Cannon	Tank destroyer Light Tank	Medium		20	35		−0.3 km/h	125	–17.5%	5	221	1Design cost	1942
File:Tank module high velocity cannon 3.png	Advanced High-Velocity Cannon	Tank destroyer Medium Tank	Heavy		25	45		−0.4 km/h	200	–20%	7	321	1Design cost	1943
File:Tank module heavy cannon.png	Basic Heavy Cannon	Tank destroyer Medium Tank	Heavy		20	20		−0.3 km/h	90	–25%	6	211	1Design cost	1936
File:Tank module heavy cannon 2.png	Improved Heavy Cannon	Tank destroyer Medium Tank	Heavy		25	35		−0.4 km/h	125	–25%	7	221	1Design cost	1940
File:Tank module heavy cannon 3.png	Advanced Heavy Cannon	Tank destroyer Medium Tank	Heavy		30	40		−0.5 km/h	170	–30%	8	331	1Design cost	1943
File:Tank module heavy howitzer.png	Heavy Howitzer	Artillery Medium Tank	Heavy	–4	55	2		−0.5 km/h	60	–30%	7	311	1Design cost	1943
File:Tank module super heavy cannon.png	Super-Heavy Cannon	Tank destroyer Heavy Tank Modern Tank	Super-heavy		35	45		−0.6 km/h	225	–35%	12.5	52	1Design cost	1943

Special modules

Amphibious drive

The Amphibious Drive module allows tanks to be assigned the amphibious role though it comes the cost of forbidding any other role. The module can only be mounted on light, medium and heavy chassis.

	Module	Reliability	Production Cost	Design Cost
File:Tank module amphibious drive.png	Amphibious Drive	–15%	2 +10%	1Design cost

Extra armor

	Module	Armor	Breakthrough	Production Cost	Design Cost
File:Tank module add on armor.png	Armor Skirts	3	3	0.5	1Design cost
File:Tank module sloped armor.png	Sloped Armor	+25%		+10%	10Design cost

Operational range

An externally mounted fuel drum extends the operational range of an armored vehicle.

	Module	Fuel Capacity	Max Speed	Production Cost	Design Cost
File:Tank module fuel drum.png	Fuel Drum	100	−0.2 km/h	1	3Design cost

Other

	Module	Defense	Soft Attack	Piercing	Breakthrough	Entrenchment	Reliability	Production Cost	Resource use per factory	Design Cost
File:Tank module additional machine guns.png	Additional Machineguns	2	1					0.5		1Design cost
File:Tank module autoloader.png	Auto Loader	4			4			2.5		1Design cost
File:Tank module dozer blade.png	Dozer Blade					1		1		1Design cost
File:Tank module easy maintenance access.png	Easy Maintenance						+10%	-5%		30Design cost
File:Tank module extra ammo storage.png	Extra Ammunition Storage	4			2		–10%			1Design cost
File:Tank module smoke launcher.png	Smoke Launchers	2			1			0.5		1Design cost
File:Tank module squeezebore adaptor.png	Squeeze-bore Adaptor			+10%					1	1Design cost
File:Tank module stabilizer.png	Stabilizer				5			2		1Design cost
File:Tank module wet ammo storage.png	Wet Ammunition Storage						+15%	1		1Design cost

Secondary turrets

Secondary turrets increase the attack power of the tank. Number of additional mountable turrets depend on chassis type:

• Light chassis can only mount up to 1 secondary turret.
• Medium chassis can only mount up to 2 secondary turrets.
• Heavy and super-heavy chassis can mount up to 4 secondary turrets.
• Amphibious and modern chassis cannot mount secondary turret at all.

	Module	Breakthrough	Soft Attack	Hard Attack	Reliability	Production Cost	Design Cost
File:Tank module secondary turret hmg.png	Heavy Machine Gun		4			1.5	1Design cost
File:Tank module secondary turret small cannon.png	Small Cannon	2	5	3	–10%	3	1Design cost

Radio

	Module	Defense	Breakthrough	Production Cost	Design Cost
File:Tank module radio 1.png	Basic Radio	+20%	+15%	0.5	1Design cost
File:Tank module radio 2.png	Improved Radio	+40%	+25%	1.5	1Design cost
File:Tank module radio 3.png	Advanced Radio	+60%	+40%	2.5	1Design cost

Tank Roles

In tank designer you can specify role of equipment, which allows using of such equipment in other battalions or support companies than basic tanks battalion. Changing tank role changes stats of tank variant.

Tank variant	Battalion Type	Supply Use	Soft Attack	Hard Attack	Piercing	Armor	Breakthough	Defense	Supression
Light Tank	Light Tank
Medium Tank	Medium Tank
Heavy Tank	Heavy Tank
Modern Tank	Modern Tank
Amphibious Tank	Amphibious Tank Battalion
	Light Amphibious Tank Battalion	- 0.02					–15%		–250%
	Medium Amphibious Tank Battalion	- 0.05					–15%		–250%
	Heavy Amphibious Tank Battalion	- 0.12					–15%		–250%
Tank Destroyer	Light Tank Destroyer	- 0.02		+30%	+30%		–57%		–150%
	Medium Tank Destroyer	- 0.03		+30%	+30%		–40%		–125%
	Heavy Tank Destroyer	- 0.02		+30%	+30%		–40%		–125%
	Super Heavy Tank Destroyer			+30%	+30%		–25%		–125%
	Modern Tank Destroyer			+30%	+30%		–40%		–125%
Artilery	Light SP Artillery	+0.2	+35%				–57%		–125%
	Medium SP Artillery	+0.21	+35%				–40%		–100%
	Heavy SP Artillery	+0.28	+35%				–40%		–100%
	Super Heavy SP Artillery	+0.4	+35%				–25%		–125%
	Modern SP Artillery	+0.25	+35%				–40%		–100%
Anti-Air	Light SP Anti-Air	- 0.12					–70%		–175%
	Medium SP Anti-Air	- 0.15					–68%		–170%
	Heavy SP Anti-Air	- 0.22					–50%		–175%
	Super Heavy SP Anti-Air	- 0.3					–35%		–175%
	Modern SP Anti-Air	- 0.15					–68%		–50%
Flame	Light Flame Tank Company	- 0.2	–75%	–75%		–75%	–90%	–75%	–250%
	Medium Flame Tank Company	- 0.22	–70%	–70%		–70%	–85%	–70%	–250%
	Heavy Flame Tank Company	- 0.29	–62.5%	–62.5%		–62.5%	–77.5%	–62.5%	–250%

References

1. For module data, see reference file /Hearts of Iron IV/common/units/equipment/modules/00_tank_modules.txt.
2. For chassis data, see reference file /Hearts of Iron IV/common/units/equipment/tank_chassis.txt.
3. For tank upgrade data, see reference file /Hearts of Iron IV/common/units/equipment/upgrades/land_upgrades.txt.
4. For flavor text, see reference files:
   1. tank_modules_l_english.yml.
   2. modifiers_l_english.yml.

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