Zuiun (631 Air Group)

[Edit] Zuiun (631 Air Group) Auspicious Clouds (631 Air Group) No.207 瑞雲(六三一空)
Seaplane Bomber Effects: +7 +1 +2 +2 +4 Combat Radius: 5 (Deployment Cost: 6) Scrap value: 2 3 5 (Buildable)
Refittable Ship Types
Coastal Defense Ship	Destroyer
Light Cruiser	Torpedo Cruiser
Heavy Cruiser	Training Cruiser
Aviation Cruiser	Fast Battleship
Battleship	Aviation Battleship
Light Carrier	Standard Aircraft Carrier
Armored Carrier	Seaplane Tender
Submarine	Aircraft Carrying Submarine
Submarine Tender	Fleet Oiler
Repair Ship	Amphibious Assault Ship
LBAS Plane

Introduction

急降下も可能な多用途水上偵察機「瑞雲」。
高価かつ高性能潜水艦搭載攻撃機「晴嵐」を運用する潜水艦部隊の航空隊として編成された第六三一海軍航空隊。
その六三一空の「瑞雲」による練成部隊です。

Multi-purpose recon seaplane "Zuiun" that is capable of performing sudden dive-bombing attacks.
The 631st Navy Air Force utilized as a submarine-launched seaplane group to operate the expensive, high-performance attack aircraft "Seiran".
This "Zuiun" was used by the 631st Navy Air Group for training.

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 Imp.

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 using a Ise-class Kai/Ni as Secretary

From quest: Fq8 (choice)

From limited-time quest: SB53 (choice)

Event reward for:

• Winter 2017 Event E-1: Hard, Medium

Ranking reward for:

• Dec 2016: 1-5, 6-20, 21-100, 101-500
• Apr 2017: 1-5, 6-20, 21-100, 101-500
• Mar 2018: 1-5 (★+4), 6-20 (★+4), 21-100, 101-500

Uses

Used by quests: F49

Updates History

• 2017-01-27: Implemented as ranking reward
• 2020-02-07: Became buildable

Fit Bonuses

Ship	Extra Requirement								Note
Noshiro Kai Ni		+2						+1	Non-stackable between any lower-tier IJN Seaplane Bombers
Yahagi Kai Ni (B) Mogami Kai Ni (Toku)		+2		+1				+1	is non-stackable between any lower-tier IJN Seaplane Bombers

Ship	Extra Requirement								Note
Agano-class Kai Ni		+1			+1			+1	Non-stackable between any Seaplane Bombers
Mogami Kai Ni (Toku)		+1						+1

Improvement

Improvement effects
Bomber	1★	2★	3★	4★	5★	6★	7★	8★	9★	Max★
	0.2	0.4	0.6	0.8	1.0	1.2	1.4	1.6	1.8	2.0
	1.2	1.69	2.07	2.40	2.68	2.93	3.17	3.39	3.60	3.79

See Also

Aichi E16A

Zunin 631st Air Group Page (Japanese)