Submarine

Submarine and its 19 variants — real stats and unlock techs for HOI4 v1.19, mined from the game files.

Submarine variant comparison (19 variants)
Stat	Early Submarine ship_hull_submarine_1	Submarine I submarine_1	$ship_hull_cruiser_submarine$ cruiser_submarine	Basic Submarine ship_hull_submarine_2	Submarine II submarine_2	$ship_hull_midget_submarine$ midget_submarine	Midget Submarine ship_hull_midget_submarine	$ship_hull_fleet_submarine$ fleet_submarine	Improved Submarine ship_hull_submarine_3	Submarine III submarine_3	Cruiser Submarine ship_hull_cruiser_submarine	Fleet Submarine ship_hull_fleet_submarine	Advanced Submarine ship_hull_submarine_4	Submarine IV submarine_4	Submarine Carrier ship_hull_carrier_submarine	Missile Launching Submarine rocket_submarine	$ship_hull_nuclear_submarine$ nuclear_submarine	Nuclear Missile Submarine nuclear_missile_submarine	Nuclear Submarine ship_hull_nuclear_submarine
Year	1922	1922	1936	1936	1936	1940	1940	1940	1940	1940	1940	1940	1944	1944	1944	1946	1950	1954	1954
Unlocked by	$ship_hull_submarine_1$	Submarine I	—	$ship_hull_submarine_2$	Submarine II	—	Midget Submarine Hull	—	$ship_hull_submarine_3$	Submarine III	Cruiser Submarine Hull	—	$ship_hull_submarine_4$	Submarine IV	—	—	—	—	—
Can Be Produced	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]	If [object Object], Else [object Object]
Lg Armor Piercing	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Lg Attack	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Hg Armor Piercing	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Hg Attack	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Torpedo Attack	0	2	0	0	0	0	0	0	0	12	0	0	0	20	0	6	9	12	0
Sub Attack	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Anti Air Attack	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Armor Value	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Surface Detection	20	30	20	20	40	20	20	60	20	50	20	20	20	70	20	65	55	60	20
Sub Detection	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Surface Visibility	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Sub Visibility	22	30	26	20	25	15	15	13	18	15	20	18	16	10	20	13	12	14	16
Naval Speed	13	13	16	17	17	8.3	8.3	19	18	18	16	18	18	18	18	20	22	22	20
Reliability	0.6	0.6	0 0.75, 1 0.75	0 0.7, 1 0.7	0.7	0.6	0.6	0.75	0.75	0.75	0.75	0.75	0.8	0.8	0.75	0.8	0.8	0.8	0.75
Naval Range	2000	2000	5000	2500	2500	500	500	6500	3000	3000	5000	6500	3500	3500	6500	6500	10000	10000	10000
Max Strength	15	10	30	22.5	20	5	5	40	30	30	30	40	37.5	35	50	40	50	50	50
Fuel Consumption	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	4	0	0	1
Build Cost Ic	320	250	490	350	250	150	150	650	420	350	490	650	550	400	850	900	1150	1450	1150
Resources	Steel 1	Steel 1	Steel 2	Steel 2	Steel 2	Steel 1	Steel 1	Steel 3	Steel 2	Steel 2	Steel 2	Steel 3	Steel 3, Chromium 1	Steel 3, Chromium 1	Steel 4	Steel 4, Chromium 2	Steel 4, Chromium 2	Steel 4, Chromium 2	Steel 3, Chromium 2
Manpower	200	200	200	200	200	100	100	200	200	200	200	200	200	200	350	200	400	400	400
Naval Dominance Factor	9	9	9	11	9	9	7	9	13	9	10	12	15	9	14	9	9	9	14
Naval Weather Penalty Factor	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Abbreviation	heb	undefined	undefined	hec	undefined	ssm	ssm	undefined	hed	undefined	hef	hefs	hee	undefined	hefnx	ssr	ssn	ssnc	hefns
Model	undefined	undefined	ship_hull_cruiser_submarine	undefined	undefined	undefined	undefined	ship_hull_fleet_submarine	undefined	undefined	ship_hull_cruiser_submarine	ship_hull_fleet_submarine	undefined	undefined	ship_hull_carrier_submarine	ship_hull_fleet_submarine	ship_hull_nuclear_powered_submarine	ship_hull_nuclear_powered_submarine	ship_hull_nuclear_powered_submarine

Country-specific names

Submarine I: ENG L Class, FRA 600 Series, GER UB III Type, ITA Mameli Class, JAP Kaichu Class, SOV AG Class, USA S Class, ARG Santa Fe Class, AST L Class, BRA Humaytá Class, CAN L Class, CHL H Class, DEN Rota Class, FIN Vetehinen Class, GRE Katsonis Class, HOL K-III Class, LAT Ronis Class, NOR B Class, NZL L Class, POR Foca Class, PRU R Class, RAJ L Class, ROM Delfinul Class, SAF L Class, SPA B Class, SPR B Class, SWE Hajen Class, TUR Birinci İnönü Class, VIC 600 Series, YUG Hrabri Class, POL Wilk Class
Submarine II: ENG T Class, FRA Minerve Class, GER Type IIA, ITA Perla Class, JAP Kaidai VI Class, SOV Series V Shchuka, USA Porpoise Class, AST T Class, BRA Tupy Class, CAN T Class, DEN Havmanden Class, EST Kalev Class, GRE Matrozos Class, HOL O16 Class, NZL T Class, POR Delfim Class, RAJ T Class, SAF T Class, SIA Vilun Class, SPA General Mola Class, SPR General Mola Class, SWE Sjölejonet Class, TUR Saldiray Class, VIC Minerve Class, YUG Osvetnik Class, POL Orzeł Class
Submarine III: ENG U Class, FRA Roland Morillot Class, GER Type VIIC, ITA Marconi Class, JAP Ko/Otsu/Hei-gata Class, SOV Series XIV K-Class, USA Tambor Class, AST U Class, CAN U Class, HOL O21 Class, NOR Uredd Class, NZL U Class, RAJ U Class, ROM Requinul Class, SAF U Class, SPA G Class, SPR G Class, SWE U Class, TUR Oruç Reis Class, VIC Roland Morillot Class, POL Sokół Class
Submarine IV: ENG V Class, FRA Phénix Class, GER Type XXI, ITA Pietro Calvi Class, JAP Sen-Toku Class, SOV Project 611, USA Balao Class, AST V Class, CAN V Class, DEN Støren Class, GRE Pipinos Class, HOL Zwaardvis Class, NOR Utsira Class, NZL V Class, POR Narval Class, RAJ V Class, SAF V Class, SPA D Class, SPR D Class, SWE Neptun Class, TUR Sakarya Class, VIC Phénix Class, POL Delfin Class