Zuiun
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Auspicious Clouds
No.26 瑞雲
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 Seaplane BomberEffects:
 +4  +2  +4  +1  +6Combat Radius: 5 (Deployment Cost:
 6)Scrap value:
 2  3 5 (Buildable) | |
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| Refittable Ship Types | |
| Fast Battleship | Battleship |
| Aviation Battleship | Standard Aircraft Carrier |
| Armored Carrier | Light Carrier |
| Heavy Cruiser | Aviation Cruiser |
| Light Cruiser | Torpedo Cruiser |
| Training Cruiser | Destroyer |
| Coastal Defense Ship | Submarine |
| Aircraft Carrying Submarine | Seaplane Tender |
| Fleet Oiler | Submarine Tender |
| Repair Ship | Amphibious Assault Ship |
| LBAS Plane | |
Introduction
水上偵察機を発展させ、急降下爆撃可能な水偵として開発された「瑞雲」。
空戦フラップまで装備した高性能な多用途機で、水上機母艦や、航空巡洋艦などからの運用も可能です。
「伊勢」型を改装した「航空戦艦」で集中運用、水上打撃機動部隊を編制するのも楽しいですよ！
Derived from floatplanes, Zuiun was developed as a reconnaissance plane able to dive-bomb.
Equipped with variable flaps, it is a very fine-tuned multirole aircraft, and is able to be used on seaplane tenders or aircraft-carrying cruisers.
It's also fun to group an aircraft-carrying battleship division, mounting it on aircraft-carrying battleships which are modified Ise-class.
Mechanics
Seaplanes are the main aircraft type used by non-carrier ships (mainly battleships, cruisers, and auxiliaries).
- They are notably required to trigger Artillery Spotting.
Bomber Seaplane Bombers additionally act like Dive Bombers, taking part in the same air phases and sharing the same damage formulas. Additionally, they:
- Play some minor Anti-Installation role.
- Bring an accuracy bonus against PT boats.
Zuiuns are additionaly required for the Ise-class Kai Ni
to perform special Zuiun cut-in attack (see Artillery Spotting for more details).
Notes
Not to be confused with other aircraft of this family (see here).
How To Obtain
Buildable
Stock equipment of: Chitose Kai
, Chiyoda Kai
, Fusou Kai
, Hayasui
, Hyuuga Kai
, Ise Kai
, Kumano Kai
, Mikuma Kai
, Mogami Kai
, Suzuya Kai
, Yamashiro Kai
From quest: C22 (x2, choice)
From limited-time quest: SB34 (x4, choice)
Uses
Used to improve: Zuiun
, Type 0 Observation Seaplane
, Zuiun (634 Air Group)
, Zuiun Model 12
, Zuiun Model 12 (634 Air Group)
, Ar196 Kai
, Ro.43 Reconnaissance Seaplane
, Ro.44 Seaplane Fighter
, Type 2 Seaplane Fighter Kai
, Laté 298B
, Shiden Model 11
, Ro.44 Seaplane Fighter bis
, Type 2 Seaplane Fighter Kai (Skilled)
, Zuiun (634 Air Group/Skilled)
, S9 Osprey
, Zuiun Kai Ni (634 Air Group)
, S-51J
, S-51J Kai
, Swordfish Mk.III Kai (Seaplane Model)
, Type 99 Dive Bomber Model 22 (Skilled)
Used by quest: F51, F52, F58, F85, F86, F87, F101
Updates History
- 2013-04-23: Implemented with initial game release
- 2013-11-01: Stats increased:
+1 → +2 - 2013-12-24: Stats increased: +2 → +4
- 2017-06-23: Became improvable and upgradeable to Zuiun (634 Air Group)
- 2021-03-30: Became upgradeable to Zuiun Model 12
Fit Bonuses
| Zuiun Equipment Bonuses | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Ship | Extra Requirement | 
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Mogami Kai Ni /Toku  Yahagi Kai Ni /B  
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- | +1 | +1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| (1st equipped) | +2 | One-time[1] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Noshiro Kai Ni
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(1st equipped) | +2 | +1 | One-time[1] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Mikuma Kai Ni /Toku 
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- | +1 | +1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| (1st equipped) | +1 | One-time[1] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Seaplane Bomber Type Equipment Bonuses | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Ship | Extra Requirement |
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| Noshiro Kai Ni Yahagi Kai Ni /B
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(1st equipped) | +1 | +1 | +1 | One-time[1] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mogami Kai Ni /Toku Mikuma Kai Ni /Toku
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(1st equipped) | +1 | +1 | One-time[1] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
- ↑ 1.0 1.1 Shared with all Seaplane Bomber
Improvement
| Type | Name | ★ | Resource | Day | 2nd Ship | Note | ||||||||||||
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Sun | Mon | Tue | Wed | Thu | Fri | Sat | |||||
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Zuiun | 0 | 160 | 160 | 0 | 360 | 5/7 | 3/4 | 1x
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I H |
M |
M |
M |
M |
I H |
I H |
Mogami Kai (only) Ise Kai Hyuuga Kai |
Ise Kai Ni and Hyuuga Kai Ni can NOT improve this equipment. Upgrades to Zuiun (634 Air Group) |
| 6 | 6/9 | 5/7 | 1x
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| 10 | 16/24 | 7/10 | 2x 1x 
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| 0 | 5/7 | 3/4 | 1x
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X | M2 | M2 | M2 | M2 | X | X | Mogami Kai Ni/Toku | Upgrades to Zuiun Model 12 | ||||||
| 6 | 6/9 | 5/7 | 1x
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| 10 | ? | 7/9 | 2x 1x 
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Improvement  effects
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| Bomber
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1★ | 2★ | 3★ | 4★ | 5★ | 6★ | 7★ | 8★ | 9★ | Max★ |
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0.2 | 0.4 | 0.6 | 0.8 | 1.0 | 1.2 | 1.4 | 1.6 | 1.8 | 2.0 |
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1.2 | 1.69 | 2.07 | 2.40 | 2.68 | 2.93 | 3.17 | 3.39 | 3.60 | 3.79 |
Trivia
Although quite obscure in-game, the Zuiun (along with the Mitsubishi F1M2) represented the pinnacle of Japanese floatplane development. This was a result of Japan's obsession with multi-role floatplanes which arose from battles with Chinese forces during the 1930s. It was initially intended to be carried by cruisers and carry out preemptive strikes on enemy aircraft carriers to secure air superiority, as the Japanese Navy disliked placing reconnaissance aircraft on aircraft carriers, which took up valuable space needed for fighters and attack aircraft (this was the reason that the Mogami was fitted with a floatplane deck). The Zuiun was equipped with 2x 20 mm guns, 1x 13 mm gun, and was able to carry a single 250 kg bomb. It was also fitted with dive brakes similar to the German-designed Ju-87 Stuka. Moreover, it could fly as far as Zero fighters (about 2500 km), and was ridiculously fast as a floatplane at 448km/h. Like many other Japanese aircraft, it never saw its full potential exhibited as a result of a delayed development schedule and Japan's dwindling production capabilities as the war progressed.