Improvement/Helper

All equipment Improvement through the Akashi's Improvement Arsenal require specific "helper ships" to second Akashi. Depending on the ship second to Akashi, its remodel, and the day of the week, the set of equipment that can be improved will change.

• Do note that certain ships are incapable of "upgrading" some equipment even though they are able to improve them to ,
• In some cases, an equipment can be upgraded into 2 or 3 different new equipment, with the helper determining the result.

The following equipment do not require any specific helper, and can be improved in all cases where they are not overtaken by other help upgrades, including when Akashi is alone in the fleet:

• 12.7cm Twin Gun Mount,
• 14cm Single Gun Mount,
• 61cm Quadruple Torpedo Mount,
• Type 94 Depth Charge Projector.

List of ships and their related quests

For a given equipment:

• "Improvement" means that the relevant ship can only improve said equipment but not improve it,
• "Upgrade" means that the relevant ship can both improve and upgrade said equipment (on at least one of her remodels),

N° 1-10

N°	Ship	Improvement	Upgrade	Notes
001	Nagato	Type 1 Land-based Attack Aircraft (Hachiman Force)	41cm Twin Gun Mount, Anti-torpedo Bulge (Large), Prototype 41cm Triple Gun Mount, 41cm Triple Gun Mount Kai
002	Mutsu	Type 3 Shell Kai, 41cm Twin Gun Mount Kai 2, Type 1 Armor Piercing Shell Kai	41cm Twin Gun Mount, Anti-torpedo Bulge (Large), Prototype 41cm Triple Gun Mount, 41cm Triple Gun Mount Kai,
003	Ise	Type 32 Surface Radar Kai, 12cm 30-tube Rocket Launcher Kai 2, 41cm Triple Gun Mount Kai 2,	Zuiun, Type 21 Air Radar, Type 32 Surface Radar, 12cm 30-tube Rocket Launcher, Ka Type Observation Autogyro, Zuiun (634 Air Group), Zuiun Model 12 (634 Air Group)
004	Hyuuga	Type 32 Surface Radar Kai, S-51J Kai, 12cm 30-tube Rocket Launcher Kai 2, Zuiun Kai 2 (634 Air Group)	Zuiun, Type 22 Surface Radar, Type 21 Air Radar, Type 32 Surface Radar, 12cm 30-tube Rocket Launcher, Zuiun (634 Air Group), Zuiun (634 Air Group/Skilled), O Type Observation Autogyro Kai, O Type Observation Autogyro Kai 2, S-51J
005	Yukikaze / Dan Yang	Type 13 Air Radar Kai	12.7cm Twin Gun Mount Model C Kai 2
006	Akagi		Type 0 Fighter Model 21, Type 0 Fighter Model 21 (Skilled), Type 0 Fighter Model 32, Type 0 Fighter Model 32 (Skilled), Shiden Model 11
007	Kaga		Type 0 Fighter Model 21, Type 0 Fighter Model 21 (Skilled), Type 0 Fighter Model 32, Type 0 Fighter Model 32 (Skilled), Shiden Model 11
008	Souryuu	Type 97 Torpedo Bomber, Type 2 Reconnaissance Aircraft	Type 99 Dive Bomber (Egusa Squadron), Type 99 Dive Bomber
009	Hiryuu		Type 99 Dive Bomber, Type 97 Torpedo Bomber (Tomonaga Squadron), Type 97 Torpedo Bomber
010	Shimakaze	61cm Quintuple (Oxygen) Torpedo Mount, New Model High Temperature High Pressure Boiler, Prototype 61cm Sextuple (Oxygen) Torpedo Mount	Type 22 Surface Radar, Enhanced Kanhon Type Boiler

N° 11-20

N°	Ship	Improvement	Upgrade	Notes
011	Fubuki	12.7cm Twin Gun Mount Model A Kai 3 (Wartime Modification) + Anti-Aircraft Fire Director	61cm Triple (Oxygen) Torpedo Mount, 61cm Triple Torpedo Mount, 61cm Triple (Oxygen) Torpedo Mount, 12.7cm Twin Gun Mount Model A Kai 2
012	Shirayuki		25mm Single Autocannon Mount
013	Hatsuyuki
014	Miyuki	61cm Triple (Oxygen) Torpedo Mount Late Model, Smoke Generator (Smoke Screen)	61cm Triple Torpedo Mount, 61cm Triple (Oxygen) Torpedo Mount, 12.7cm Twin Gun Mount Model A Kai 2
015	Murakumo	61cm Triple Torpedo Mount	12.7cm Twin Gun Mount Model A Kai 2
016	Isonami	61cm Triple (Oxygen) Torpedo Mount Late Model, 12.7cm Twin Gun Mount Model A Kai 3 (Wartime Modification) + Anti-Aircraft Fire Director	61cm Triple Torpedo Mount, 61cm Triple (Oxygen) Torpedo Mount, 12.7cm Twin Gun Mount Model A Kai 2
017	Ayanami	61cm Triple (Oxygen) Torpedo Mount Late Model	61cm Triple Torpedo Mount, 12.7cm Twin Gun Mount Model B Kai 2, Searchlight, 61cm Triple (Oxygen) Torpedo Mount
018	Shikinami	12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director	61cm Triple Torpedo Mount, 61cm Triple Torpedo Mount
019	Ooi		61cm Quadruple (Oxygen) Torpedo Mount
020	Kitakami	Type 42 Air Radar	61cm Quadruple (Oxygen) Torpedo Mount

N° 21-30

N°	Ship	Improvement	Upgrade	Notes
021	Kongou	Type 1 Armor Piercing Shell Kai, Type 3 Shell Kai, Type 3 Shell Kai 2	15.2cm Single Gun Mount, Type 3 Shell, Type 22 Surface Radar Kai 4, Prototype 35.6cm Triple Gun Mount, Type 1 Armor Piercing Shell, 35.6cm Twin Gun Mount Kai
022	Hiei	Type 0 Passive Sonar, Type 96 150cm Searchlight	Type 3 Shell, Type 91 Armor Piercing Shell, Prototype 35.6cm Triple Gun Mount, Type 3 Shell Kai, 35.6cm Twin Gun Mount Kai
023	Haruna	Type 1 Land-based Attack Aircraft Model 34	Type 3 Shell, Prototype 35.6cm Triple Gun Mount, 35.6cm Twin Gun Mount (Dazzle Camouflage), Type 1 Armor Piercing Shell, Shiden Model 21 Shiden Kai, 35.6cm Triple Gun Mount Kai (Dazzle Camouflage), 35.6cm Twin Gun Mount Kai 3 (Dazzle Camouflage)
024	Kirishima	Type 96 150cm Searchlight	Type 3 Shell, Type 91 Armor Piercing Shell, Type 1 Land-based Attack Aircraft Model 22A
025	Houshou	Type 96 Fighter Kai, Type 0 Fighter Model 64 (Skilled Fighter-bomber)	Type 97 Torpedo Bomber, Type 96 Fighter, Type 97 Torpedo Bomber (Skilled), Type 0 Fighter Model 64 (Air Superiority Fighter Specification)
026	Fusou	Prototype 35.6cm Triple Gun Mount	35.6cm Twin Gun Mount, 15.2cm Single Gun Mount, Type 96 Land-based Attack Aircraft
027	Yamashiro	Prototype 35.6cm Triple Gun Mount	Zuiun Model 12 (634 Air Group), Type 1 Land-based Attack Aircraft
028	Tenryuu	12.7cm Twin High-angle Gun Mount (Late Model)
029	Tatsuta	53cm Twin Torpedo Mount	Daihatsu Landing Craft
030	Ryuujou

N° 31-40

N°	Ship	Improvement	Upgrade	Notes
031	Mutsuki		12cm Single Gun Mount, 12cm Single Gun Mount Kai 2
032	Kisaragi		12cm Single Gun Mount, 12cm Single Gun Mount Kai 2
033	Satsuki		25mm Twin Autocannon Mount, 25mm Single Autocannon Mount, Daihatsu Landing Craft, Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force)
034	Fumizuki		25mm Twin Autocannon Mount, 25mm Single Autocannon Mount
035	Nagatsuki
036	Kikuzuki
037	Mikazuki
038	Mochizuki
039	Kuma
040	Tama

N° 41-50

N°	Ship	Improvement	Upgrade	Notes
041	Kiso
042	Nagara
043	Isuzu	Type 3 Depth Charge Projector, Type 3 Active Sonar, Type 4 Passive Sonar	Type 13 Air Radar, 25mm Twin Autocannon Mount, 25mm Triple Autocannon Mount, Type 93 Passive Sonar
044	Natori
045	Yura	12.7cm Single High-angle Gun Mount (Late Model), Type 0 Reconnaissance Seaplane Model 11B
046	Sendai	Type 98 Reconnaissance Seaplane (Night Recon)
047	Jintsuu		Searchlight
048	Naka	12.7cm Twin High-angle Gun Mount (Late Model)	Type 95 Depth Charge
049	Chitose		Type 0 Reconnaissance Seaplane
050	Chiyoda		Type 0 Reconnaissance Seaplane, Type A Kouhyouteki

N° 51-60

N°	Ship	Improvement	Upgrade	Notes
051	Mogami	15.5cm Triple Gun Mount, Type 21 Air Radar Kai 2, Kyoufuu Kai 2	Zuiun, Type 21 Air Radar, Zuiun Model 12, Zuiun Model 12 (634 Air Group), Zuiun Kai 2 (634 Air Group)
052	Furutaka
053	Kako
054	Aoba		20.3cm Twin Gun Mount, Searchlight
055	Myoukou	Type 22 Surface Radar Kai 4	20.3cm (No.2) Twin Gun Mount
056	Nachi
057	Ashigara
058	Haguro	Type 22 Surface Radar Kai 4
059	Takao
060	Atago

N° 61-70

N°	Ship	Improvement	Upgrade	Notes
061	Maya	25mm Triple Autocannon Mount (Concentrated Deployment)	12.7cm Twin High-angle Gun Mount, 25mm Triple Autocannon Mount, Type 91 Anti-Aircraft Fire Director
062	Choukai		Searchlight
063	Tone		Type 0 Reconnaissance Seaplane
064	Chikuma		Type 0 Reconnaissance Seaplane
065	Hiyou
066	Junyou	Type 0 Fighter Model 62 (Fighter-bomber)
067	Oboro
068	Akebono
069	Sazanami
070	Ushio	Shinzan	25mm Single Autocannon Mount

N° 71-80

N°	Ship	Improvement	Upgrade	Notes
071	Akatsuki	12.7mm Single Machine Gun Mount	Searchlight
072	Hibiki / Verniy	12.7mm Single Machine Gun Mount	Anti-torpedo Bulge (Medium)
073	Ikazuchi	12.7mm Single Machine Gun Mount
074	Inazuma	12.7mm Single Machine Gun Mount
075	Hatsuharu
076	Nenohi
077	Wakaba
078	Hatsushimo	Type 13 Air Radar Kai, 61cm Triple (Oxygen) Torpedo Mount Late Model
079	Shiratsuyu	12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director, Type 2 Depth Charge
080	Shigure	Type 22 Surface Radar Kai 4 (Calibrated Late Model), 61cm Quadruple (Oxygen) Torpedo Mount Late Model, 12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director, Type 3 Active Sonar Kai, 12.7cm Twin Gun Mount Model C Kai 3, Type 2 Depth Charge Kai 2	Type 13 Air Radar, Type 93 Passive Sonar, 12.7cm Twin Gun Mount Model C Kai 2

N° 81-90

N°	Ship	Improvement	Upgrade	Notes
081	Murasame		25mm Triple Autocannon Mount, 12.7cm Twin Gun Mount Model C Kai 2
082	Yuudachi		12.7cm Twin Gun Mount Model B Kai 2
083	Samidare
084	Suzukaze
085	Asashio
086	Ooshio		Shipborne Model Type 4 20cm Anti-ground Rocket Launcher
087	Michishio	Type 22 Surface Radar Kai 4 (Calibrated Late Model)	Shipborne Model Type 4 20cm Anti-ground Rocket Launcher
088	Arashio		12.7cm Twin Gun Mount Model C Kai 2, 12.7cm Twin Gun Mount Model C Kai 2
089	Arare
090	Kasumi

N° 91-100

N°	Ship	Improvement	Upgrade	Notes
091	Kagerou	61cm Quadruple (Oxygen) Torpedo Mount Late Model
092	Shiranui
093	Kuroshio	Type 33 Surface Radar, Type 3 Depth Charge Projector
094	Shouhou

N° 101-110

N°	Ship	Improvement	Upgrade	Notes
106	Shoukaku	Type 0 Fighter Model 62 (Fighter-bomber), Skilled Deck Personnel + Aviation Maintenance Hands	Tenzan, Type 0 Fighter Model 52, Suisei, Prototype Keiun (Carrier-based Reconnaissance Model), Type 0 Fighter Model 52 (Skilled), Type 99 Dive Bomber Model 22
107	Zuikaku	Type 0 Fighter Model 52, Type 0 Fighter Model 52 (Skilled), Zero Fighter Model 52C (w/ Iwai Flight), Zero Fighter Model 62 (Fighter-bomber / Iwai Squadron), Zero Fighter Model 52A (w/ Iwamoto Flight), Type 0 Fighter Model 53 (Iwamoto Squadron), Type 99 Dive Bomber Model 22 (Skilled)	Tenzan, Prototype Keiun (Carrier-based Reconnaissance Model)
109	Kinu	25mm Triple Autocannon Mount (Concentrated Deployment), Toku Daihatsu Landing Craft	25mm Twin Autocannon Mount, 25mm Triple Autocannon Mount, 25mm Single Autocannon Mount, Daihatsu Landing Craft
110	Abukuma		Daihatsu Landing Craft, Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force)

N° 111-120

N°	Ship	Improvement	Upgrade	Notes
111	Yuubari	Type 33 Surface Radar, Type 3 Active Sonar, Type 4 Passive Sonar, 14cm Twin Gun Mount Kai 2	Type 93 Passive Sonar, 14cm Twin Gun Mount, 14cm Twin Gun Mount Kai
112	Zuihou	Type 99 Dive Bomber Model 22 (Skilled)	Type 99 Dive Bomber, Prototype Type 97 Torpedo Bomber Kai No. 3 Model E (w/ Type 6 Airborne Radar Kai), Type 99 Dive Bomber Model 22
116	Mikuma	Prototype 20.3cm (No.4) Twin Gun Mount	12.7cm Twin High-angle Gun Mount, 20.3cm (No.3) Twin Gun Mount
118	Hatsukaze
119	Maikaze
120	Kinugasa		20.3cm Twin Gun Mount, 20.3cm (No.2) Twin Gun Mount

N° 121-130

N°	Ship	Improvement	Upgrade	Notes
123	I-19
124	Suzuya	Kyoufuu Kai, Type 0 Fighter Model 63 (Fighter-bomber), 8cm High-angle Gun Kai + Additional Machine Guns	12.7cm Twin High-angle Gun Mount, Shiden Kai 2, Type 0 Fighter Model 62 (Fighter-bomber), 8cm High-angle Gun
125	Kumano	Type 0 Fighter Model 63 (Fighter-bomber), 8cm High-angle Gun Kai + Additional Machine Guns, Shiden Kai 4	12.7cm Twin High-angle Gun Mount, 20.3cm (No.3) Twin Gun Mount, 8cm High-angle Gun
126	I-168
127	I-58	Special Type 2 Amphibious Tank, Late Model Bow Torpedo Mount (6 tubes)
128	I-8	Special Type 2 Amphibious Tank, Late Model Bow Torpedo Mount (6 tubes)

N° 131-140

N°	Ship	Improvement	Upgrade	Notes
131	Yamato	New Kanhon Design Anti-torpedo Bulge (Large), 10cm Twin High-angle Gun Mount Battery Concentrated Deployment, Prototype 51cm Twin Gun Mount	46cm Triple Gun Mount, 15.5cm Triple Secondary Gun Mount, Anti-torpedo Bulge (Large), Type 21 Air Radar Kai, Prototype 46cm Twin Gun Mount, 15.5cm Triple Secondary Gun Mount Kai, 46cm Triple Gun Mount Kai
132	Akigumo		Searchlight
133	Yuugumo	12.7cm Twin Gun Mount Model D Kai 2	Type 22 Surface Radar
134	Makigumo
135	Naganami	12.7cm Twin Gun Mount Model D Kai 2, 61cm Quadruple (Oxygen) Torpedo Mount Late Model	Combat Ration
137	Agano	8cm High-angle Gun	15.2cm Single Gun Mount, 15.2cm Twin Gun Mount, Combat Ration
138	Noshiro	8cm High-angle Gun, 15.2cm Twin Gun Mount Kai 2	Shiden Kai 2, 15.2cm Twin Gun Mount, 15.2cm Twin Gun Mount Kai, Ginga
139	Yahagi	15.2cm Twin Gun Mount Kai, 8cm High-angle Gun Kai + Additional Machine Guns	Shiden Kai 2, 15.2cm Twin Gun Mount, 8cm High-angle Gun
140	Sakawa	Type 42 Air Radar, 8cm High-angle Gun Kai + Additional Machine Guns	Shiden Kai 2, Anti-torpedo Bulge (Medium), 15.2cm Twin Gun Mount Kai, Ginga

N° 141-150

N°	Ship	Improvement	Upgrade	Notes
143	Musashi	Type 0 Observation Seaplane, Type 21 Air Radar Kai, New Kanhon Design Anti-torpedo Bulge (Large), 10cm Twin High-angle Gun Mount Kai + Additional Machine Guns, 51cm Twin Gun Mount	46cm Triple Gun Mount, 15.5cm Triple Secondary Gun Mount, Anti-torpedo Bulge (Large), Prototype 46cm Twin Gun Mount, Prototype 51cm Twin Gun Mount, 15.5cm Triple Secondary Gun Mount Kai, 46cm Triple Gun Mount Kai

N° 151-160

N°	Ship	Improvement	Upgrade	Notes
153	Taihou	Zero Fighter Model 52C (601 Air Group)	Tenzan, Ryuusei, Suisei, Ryuusei Kai
154	Katori	Type 4 Passive Sonar	Type 93 Passive Sonar
155	I-401	Special Type 2 Amphibious Tank, Late Model 53cm Bow Torpedo Mount (8 tubes)	Submarine Radar & Waterproof Telescope, Submarine Radar & Passive Radiolocator (E27)

N° 161-170

N°	Ship	Improvement	Upgrade	Notes
161	Akitsu Maru	Toku Daihatsu Landing Craft, Type 1 Fighter Hayabusa Model III A	Daihatsu Landing Craft, Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force), Type 3 Fighter Hien, Type 1 Fighter Hayabusa Model II, Type 2 12cm Mortar Kai
162	Kamoi	Type 1 Fighter Hayabusa Model III A, Bomb-carrying Type 1 Fighter Hayabusa Model III Kai (65th Squadron), Swordfish (Seaplane Model), Swordfish Mk.II Kai (Reconnaissance Seaplane Model)	Type 1 Fighter Hayabusa Model II
163	Maruyu
164	Yayoi
165	Uzuki
167	Isokaze	Type 13 Air Radar Kai
168	Urakaze
169	Tanikaze
170	Hamakaze

N° 171-180

N°	Ship	Improvement	Upgrade	Notes
171	Bismarck	38cm Twin Gun Mount Kai, Ar196 Kai	38cm Twin Gun Mount, Do 17 Z-2
174	Z1	12.7cm Single Gun Mount, 2cm Flakvierling 38
175	Z3	12.7cm Single Gun Mount
176	Prinz Eugen	Ar196 Kai	Do 17 Z-2

N° 181-190

N°	Ship	Improvement	Upgrade	Notes
181	Amatsukaze	New Model High Temperature High Pressure Boiler, 12.7cm Twin Gun Mount Model C Kai 3	Enhanced Kanhon Type Boiler, 12.7cm Twin Gun Mount Model C Kai 2
182	Akashi	It is Akashi
183	Ooyodo	Shiun, 10cm Twin High-angle Gun Mount Kai + Additional Machine Guns, Shinzan	15.5cm Triple Gun Mount, 10cm Twin High-angle Gun Mount (Carriage), 15.5cm Triple Gun Mount Kai
184	Taigei / Ryuuhou		Bi Type 40mm Twin Autocannon Mount, Prototype Type 97 Torpedo Bomber Kai No. 3 Model E (w/ Type 6 Airborne Radar Kai), Tenzan Model 12A
186	Tokitsukaze

N° 201-210

N°	Ship	Improvement	Upgrade	Notes
201	Unryuu	Zero Fighter Model 52C (601 Air Group)
202	Amagi
203	Katsuragi
205	Harusame		Bi Type 40mm Twin Autocannon Mount
209	Hayashimo
210	Kiyoshimo	12.7cm Twin Gun Mount Model D Kai 2, 61cm Quadruple (Oxygen) Torpedo Mount Late Model, Type 1 Armor Piercing Shell Kai, Type 13 Air Radar Kai (Late Model), Passive Radiolocator (E27) + Type 22 Surface Radar Kai 4 (Calibrated Late Model)	Daihatsu Landing Craft

N° 211-220

N°	Ship	Improvement	Upgrade	Notes
213	Asagumo
214	Yamagumo
215	Nowaki

N° 221-230

N°	Ship	Improvement	Upgrade	Notes
221	Akizuki	10cm Twin High-angle Gun Mount + Anti-Aircraft Fire Director, Type 4 Passive Sonar	Type 13 Air Radar, Type 91 Anti-Aircraft Fire Director
222	Teruzuki	10cm Twin High-angle Gun Mount + Anti-Aircraft Fire Director, Type 4 Passive Sonar	Type 13 Air Radar, Type 91 Anti-Aircraft Fire Director
223	Hatsuzuki	10cm Twin High-angle Gun Mount + Anti-Aircraft Fire Director, Prototype 61cm Sextuple (Oxygen) Torpedo Mount
224	Takanami
225	Asashimo	12.7cm Twin Gun Mount Model D Kai 2, 61cm Quadruple (Oxygen) Torpedo Mount Late Model, Type 13 Air Radar Kai (Late Model), Passive Radiolocator (E27) + Type 22 Surface Radar Kai 4 (Calibrated Late Model)

N° 231-240

N°	Ship	Improvement	Upgrade	Notes
231	U-511 / Ro-500
232	Graf Zeppelin
233	Saratoga	F6F-5, SK + SG Radar	SBD, F4F-3, F4F-4, F6F-3
239	Warspite	38.1cm Mk.I/N Twin Gun Mount Kai, Swordfish Mk.II Kai (Reconnaissance Seaplane Model)	38.1cm Mk.I Twin Gun Mount, Spitfire Mk.I, Swordfish (Seaplane Model)
240	Iowa	OS2U, 16inch Triple Gun Mount Mk.7 + GFCS	16inch Triple Gun Mount Mk.7

N° 241-250

N°	Ship	Improvement	Upgrade	Notes
241	Littorio / Italia	OTO 152mm Triple Rapid Fire Gun Mount, 90mm Single High-angle Gun Mount, Pugliese Underwater Protection Bulkhead, 381mm/50 Triple Gun Mount Kai	381mm/50 Triple Gun Mount, Ro.43 Reconnaissance Seaplane
242	Roma	OTO 152mm Triple Rapid Fire Gun Mount, 90mm Single High-angle Gun Mount, Pugliese Underwater Protection Bulkhead	381mm/50 Triple Gun Mount, Ro.43 Reconnaissance Seaplane
243	Libeccio		120mm/50 Twin Gun Mount
244	Aquila		Re.2001 OR Kai, Re.2001 CB Kai
245	Akitsushima		Type 0 Reconnaissance Seaplane, Shipborne Model Type 4 20cm Anti-ground Rocket Launcher
248	Zara	203mm/53 Twin Gun Mount, New Kanhon Design Anti-torpedo Bulge (Medium), Ro.44 Seaplane Fighter bis	Anti-torpedo Bulge (Medium), Ro.43 Reconnaissance Seaplane, Ro.44 Seaplane Fighter
249	Pola

N° 251-260

N°	Ship	Improvement	Upgrade	Notes
251	Mizuho	Type 0 Observation Seaplane, Type 2 Seaplane Fighter Kai (Skilled), Kyoufuu Kai	Type 0 Reconnaissance Seaplane, Type 2 Seaplane Fighter Kai
252	Okinami
253	Kazagumo
254	Arashi
255	Hagikaze
256	Oyashio	61cm Quadruple (Oxygen) Torpedo Mount Late Model, 12.7cm Twin Gun Mount Model C Kai 3	12.7cm Twin Gun Mount Model C Kai 2
257	Yamakaze	Type 3 Active Sonar Kai
258	Umikaze
259	Kawakaze
260	Hayasui

N° 261-270

N°	Ship	Improvement	Upgrade	Notes
265	Kashima	Shinzan	14cm Twin Gun Mount Kai

N° 271-280

N°	Ship	Improvement	Upgrade	Notes
271	Kamikaze	53cm Twin Torpedo Mount	Type 95 Depth Charge, Type 2 12cm Mortar Kai
272	Asakaze		7.7mm Machine Gun
273	Harukaze
274	Matsukaze		7.7mm Machine Gun
275	Hatakaze
279	Amagiri
280	Sagiri

N° 281-290

N°	Ship	Improvement	Upgrade	Notes
281	Minazuki
283	I-26
284	Hamanami
285	Fujinami
286	Uranami	12.7cm Twin Gun Mount Model A Kai 3 (Wartime Modification) + Anti-Aircraft Fire Director, Prototype Long-barrel 12.7cm Twin Gun Mount Model A Kai 4	Daihatsu Landing Craft, 61cm Triple (Oxygen) Torpedo Mount, 12.7cm Twin Gun Mount Model A Kai 2

N° 291-300

N°	Ship	Improvement	Upgrade	Notes
291	Commandant Teste	Laté 298B, Swordfish (Seaplane Model), Swordfish Mk.II Kai (Reconnaissance Seaplane Model)
292	Richelieu	38cm Quadruple Gun Mount Kai, 15.2cm Triple Gun Mount	38cm Quadruple Gun Mount
293	I-400	Late Model 53cm Bow Torpedo Mount (8 tubes), Submarine Radar & Passive Radiolocator (E27)	Submarine 53cm Bow Torpedo Mount (8 tubes)
294	I-13	Late Model Bow Torpedo Mount (6 tubes)
295	I-14	Late Model Bow Torpedo Mount (6 tubes)

N° 311-320

N°	Ship	Improvement	Upgrade	Notes
311	Gangut / Oktyabrskaya Revolyutsiya	30.5cm Triple Gun Mount Kai	30.5cm Triple Gun Mount
313	Tashkent	130mm B-13 Twin Gun Mount, 533mm Triple Torpedo Mount
314	Sheffield
315	Ark Royal	Swordfish Mk.II (Skilled), Skua	Swordfish, Fulmar, Spitfire Mk.I, Spitfire Mk.V
317	Shimushu		Type 95 Depth Charge
318	Kunashiri
319	Jervis	QF 4.7inch Gun Mk.XII Kai	Spitfire Mk.I, Type124 ASDIC
320	Janus		Type124 ASDIC

N° 321-330

N°	Ship	Improvement	Upgrade	Notes
321	Kasuga Maru / Taiyou	Type 1 Fighter Hayabusa Model III A	Type 97 Torpedo Bomber (931 Air Group), Type 3 Fighter Hien, Type 1 Fighter Hayabusa Model II
322	Yawata Maru / Unyou	Type 0 Fighter Model 64 (Two-seat w/ KMX)	Type 97 Torpedo Bomber (931 Air Group)
324	Shinyou		Type 97 Torpedo Bomber (931 Air Group), Type 97 Torpedo Bomber (Skilled)
325	Luigi Torelli / UIT-25 / I-504
327	Kishinami
328	Hayanami

N° 331-340

N°	Ship	Improvement	Upgrade	Notes
332	Suzutsuki	10cm Twin High-angle Gun Mount + Anti-Aircraft Fire Director
333	Fuyutsuki	10cm Twin High-angle Gun Mount + Anti-Aircraft Fire Director	10cm Twin High-angle Gun Mount
334	Etorofu	12.7cm Single High-angle Gun Mount (Late Model)	Type 95 Depth Charge
335	Matsuwa
339	Sado
340	Tsushima

N° 341-350

N°	Ship	Improvement	Upgrade	Notes
344	Gambier Bay	SK + SG Radar	FM-2, SK Radar
349	Intrepid

N° 351-360

N°	Ship	Improvement	Upgrade	Notes
351	Hiburi	Type 3 Depth Charge Projector, Type 2 Depth Charge, 12.7cm Single High-angle Gun Mount (Late Model), Type 3 Depth Charge Projector (Concentrated Deployment), 12cm Single High-angle Gun Mount Model E
352	Daitou	Type 3 Depth Charge Projector, Type 2 Depth Charge, Type 3 Depth Charge Projector (Concentrated Deployment), 12cm Single High-angle Gun Mount Model E

N° 361-370

N°	Ship	Improvement	Upgrade	Notes
361	Samuel B. Roberts	533mm Quintuple Torpedo Mount (Initial Model)	5inch Single Gun Mount Mk.30
362	Johnston	533mm Quintuple Torpedo Mount (Initial Model)	5inch Single Gun Mount Mk.30
365	Fukae
370	Hirato

N° 371-380

N°	Ship	Improvement	Upgrade	Notes
371	Nelson	Spitfire Mk.V, 16inch Mk.I Triple Gun Mount Kai + FCR Type 284	16inch Mk.I Triple Gun Mount, 16inch Mk.I Triple Gun Mount + AFCT Kai
372	Rodney	16inch Mk.I Triple Gun Mount Kai + FCR Type 284	16inch Mk.I Triple Gun Mount, 16inch Mk.I Triple Gun Mount + AFCT Kai
374	Gotland	Bofors 15.2cm Twin Gun Mount Model 1930, Swordfish Mk.III Kai (Seaplane Model), Fairey Seafox Kai	S9 Osprey, Swordfish (Seaplane Model)
375	Maestrale	120mm/50 Twin Gun Mount mod.1936

N° 381-390

N°	Ship	Improvement	Upgrade	Notes
381	Nisshin		Type A Kouhyouteki, Type 2 12cm Mortar Kai
382	Natsugumo
383	Minegumo
384	Hachijou
385	Ishigaki
389	Duca degli Abruzzi
390	Giuseppe Garibaldi

N° 391-400

N°	Ship	Improvement	Upgrade	Notes
395	Houston	OS2U, 8inch Triple Gun Mount Mk.9 mod.2	8inch Triple Gun Mount Mk.9
396	Fletcher	SG Radar (Initial Model)	5inch Single Gun Mount Mk.30, 5inch Single Gun Mount Mk.30 Kai
397	Atlanta
398	Honolulu Kai
399	De Ruyter

N° 401-410

N°	Ship	Improvement	Upgrade	Notes
401	Colorado	OS2U, 16inch Mk.VIII Twin Gun Mount Kai	16inch Mk.I Twin Gun Mount, 16inch Mk.V Twin Gun Mount
402	South Dakota	16inch Triple Gun Mount Mk.6 mod.2	16inch Triple Gun Mount Mk.6
403	Hornet	Skilled Deck Personnel + Aviation Maintenance Hands	SBD, SBD-5
408	Souya	Type 1 Land-based Attack Aircraft (Nonaka Squadron)	25mm Single Autocannon Mount, Type 3 Fighter Hien Model 1D, Type 2 Two-seat Fighter Toryuu

N° 411-420

N°	Ship	Improvement	Upgrade	Notes
411	Mikura	Type 2 Depth Charge, 12cm Single High-angle Gun Mount Model E
412	Yashiro	Type 2 Depth Charge
413	Perth
414	Grecale
415	Helena		SOC Seagull

N° 421-430

N°	Ship	Improvement	Upgrade	Notes
421	Shinshuu Maru	Soukoutei (Armored Boat Class), Armed Daihatsu	Daihatsu Landing Craft, Type 4 Heavy Bomber Hiryuu, Type 2 Two-seat Fighter Toryuu
425	Akishimo

N° 431-440

N°	Ship	Improvement	Upgrade	Notes
431	Usugumo
432	Ariake
433	Yuugure
434	Jingei
435	Chougei
436	I-47	Late Model 53cm Bow Torpedo Mount (8 tubes)
437	Kaiboukan No.4
438	Kaiboukan No.30

N° 441-450

N°	Ship	Improvement	Upgrade	Notes
441	Matsu	12.7cm Single High-angle Gun Mount Kai 2
442	Take
443	Ume	Type 13 Air Radar Kai (Late Model)	Type 13 Air Radar Kai
444	Momo

N° 451-460

N°	Ship	Improvement	Upgrade	Notes
453	Scirocco
454	Washington	16inch Triple Gun Mount Mk.6 mod.2	16inch Triple Gun Mount Mk.6
455	Northampton		SOC Seagull

N° 471-480

N°	Ship	Improvement	Upgrade	Notes
471	Makinami
474	Tamanami
475	Suzunami
477	Conte di Cavour	Pugliese Underwater Protection Bulkhead	Anti-torpedo Bulge (Large)

N° 481-490

N°	Ship	Improvement	Upgrade	Notes
481	I-201	Late Model Bow Torpedo Mount (4 tubes)
482	I-203	Late Model Bow Torpedo Mount (4 tubes)
486	Hayashio	12.7cm Twin Gun Mount Model C Kai 3	12.7cm Twin Gun Mount Model C Kai 2
485	Victorious	Barracuda Mk.III	Fulmar, Barracuda Mk.II

N° 491-500

N°	Ship	Improvement	Upgrade	Notes
491	Salmon	21inch 4-tube Bow Torpedo Launcher (Late Model),	21inch 4-tube Bow Torpedo Launcher (Initial Model),
493	Scamp	21inch 6-tube Bow Torpedo Launcher (Late Model)	Submarine 4-tube Stern Torpedo Launcher (Initial Model), 21inch 6-tube Bow Torpedo Launcher (Initial Model)
495	Shounan
497	Brooklyn
498	Kaiboukan No.22
500	Yamashio Maru	Type 3 Command Liaison Aircraft Kai	Type 3 Command Liaison Aircraft (ASW), Type 2 12cm Mortar Kai, Type 2 Two-seat Fighter Toryuu Model C, Ki-96

N° 501-510

N°	Ship	Improvement	Upgrade	Notes
501	Javelin
504	Noumi
505	Kurahashi	Type 2 Depth Charge

N° 511-520

N°	Ship	Improvement	Upgrade	Notes
513	Maryland	SG Radar (Initial Model)

N° 521-530

N°	Ship	Improvement	Upgrade	Notes
521	Ukuru	Type 3 Depth Charge Projector (Concentrated Deployment)
522	Inagi
523	Tuscaloosa
524	Nevada	14inch/45 Twin Gun Mount, 14inch/45 Triple Gun Mount
525	Langley

N° 531-540

N°	Ship	Improvement	Upgrade	Notes
531	Ranger	TBF	TBD
533	Massachusetts
534	C.Cappellini / UIT-24 / I-503
535	Jean Bart

N° 541-550

N°	Ship	Improvement	Upgrade	Notes
541	Heywood L. Edwards
543	Kumano Maru
545	No.101 Transport Ship

N° 551-560

N°	Ship	Improvement	Upgrade	Notes
553	Asahi

N° 561-570

N°	Ship	Improvement	Upgrade	Notes
564	Shirakumo