I-41

Info

伊41 (い41)		I-41
572
Junsen Type B Kai Ichi Aircraft Carrying Submarine

HP	14→18	FP	2→8
ARM	4→20	TORP	36→73
EVA	12→37	AA	0
PLA	2	ASW	0
SPD	Slow	LOS	10→30
RGE	Short	LUK	18→71

Aircraft	Equipment
1	-Unequipped-
1	-Unequipped-
	-Locked-
	-Locked-

Modernization	0 2 1 0
Build Time	0:22 (Unbuildable)	Remodel Req
Consumption	10 20	Dismantle	1 3 2 0
Illustrator	Shibafu	Seiyuu	Moriyama Yurika

伊41改 (い41かい)		I-41 Kai
577
Junsen Type B Kai Ichi Aircraft Carrying Submarine

HP	18→22	FP	3→14
ARM	4→21	TORP	38→89
EVA	14→46	AA	0
PLA	3	ASW	0
SPD	Slow	LOS	11→33
RGE	Short	LUK	22→81

Aircraft	Equipment
1	-Unequipped-
2	-Unequipped-
	-Locked-
	-Locked-

Modernization	0 3 1 0
Remodel Level	50	Remodel Req	290 170
Consumption	10 25	Dismantle	1 2 2 2
Illustrator	Shibafu	Seiyuu	Moriyama Yurika

Gameplay Notes

Submarines (SS) have high torpedo stats, and are limited to the Opening Torpedo Salvo, the Closing Torpedo Salvo, and Night Battle. They:

Are only vulnerable to ASW only.
Utilize Sub Submarine Torpedoes and Submarine Equipment.
Can inately trigger Opening Torpedo Salvos after reaching level 10.
Have access to special Night Cut-Ins.

Submarine Aircraft Carriers (SSV), are SS that can equip Recon/Bomber/ seaplanes.

Special Mechanics

None

Equipability Exceptions

SSV	Default equipment compatibility
	✔️ Can Equip	❌ Cannot Equip
	Recon Bomber	Sp
	Sub Minisub Small	Sp Sp_Sec Large Small Large Sp
		Medium Large Large
	RE:
	Equipability notes: = ; = ; = ; =Recon ; =Bomber ; Small= ; Medium= ; Sec= ; =

I-41 Equipability Exceptions
	I-41/Kai
Expansion Slot Exceptions	Can Equip:
Ship Exceptions	-

Fit Bonuses

[edit]I-41 Equipment Bonuses
Equipment	Extra Requirement							Note
Special Type 4 Amphibious Tank OR Special Type 4 Amphibious Tank Kai	(★0)	+1	+2				-1
	(★1-2)	+1	+3				-1
	(★3-5)	+1	+3			+1	-1
	(★6-9)	+1	+3			+2	-1
	(★MAX)	+1	+4			+2	-1
	(1st equipped)	+2	+1			+2		One-time
Ship-Type Bonuses
Type 0 Small Reconnaissance Seaplane OR Type 0 Small Reconnaissance Seaplane (Skilled)	(★0)		+1		+3	+1	+5
	(★1)		+2		+3	+1	+5
	(★2)		+2		+3	+2	+5
	(★3-4)		+2		+3	+2	+6
	(★5-7)		+2		+4	+2	+6
	(★8-9)		+2		+4	+3	+6
	(★MAX)		+2		+4	+3	+7
Type 0 Small Reconnaissance Seaplane (Skilled)			+2		+1	+1	+1	+2
Type D Kouhyouteki Kai (Kouryuu Kai)		-1					-7
Late Model 53cm Bow Torpedo Mount (8 tubes)	(1st equipped) (★8-9)		+1					One-time
Late Model 53cm Bow Torpedo Mount (8 tubes)	(1st equipped) (★MAX)		+1			+1		One-time
Kyoufuu Kai 2	(★3-4)	+1
	(★5-6)	+1		+1
	(★7-9)	+1		+1			+1
	(★MAX)	+1		+1		+1	+1
Special Type 4 Amphibious Tank Kai	(★0-1)	+1	+1			+1
	(★2-3)	+2	+1			+1
	(★4-7)	+2	+2			+1
	(★8-MAX)	+3	+2			+1
Late Model Submarine Radar & Passive Radiolocator	+ Late Model Bow Torpedo Mount (6 tubes) OR Skilled Sonar Personnel + Late Model Bow Torpedo Mount (6 tubes) OR Late Model 53cm Bow Torpedo Mount (8 tubes)		+3				+2	One-time
Late Model Radar & Passive Radiolocator + Snorkel Equipment	(★3-4)						+1
	(★5-9)		+1				+1
	(★MAX)		+1			+1	+1
	(★2-MAX) + ★4+ Skilled Sonar Personnel + Late Model Bow Torpedo Mount (4 tubes)		+7			+5		One-time

Drop Locations

Ship	Rarity	Type	No.	World 1						World 2					World 3					World 7					World 4					World 5					World 6					Remarks
Ship	Rarity	Type	No.	1	2	3	4	5	6	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5	Remarks
I-41	Very Rare	SSV	572																																					Unbuildable

Voice Lines

Quotes

Event	Japanese/English
Introduction Play	I-class submarine, Junsen Type B Kai Ichi, I-41! Pleased ta meetcha! You're the Admiral then? Wonder if you're cooler than that captain^[1]? Well then, show me how ya lead!
Introduction Play	伊号潜水艦、巡潜乙型改一、その二番艦、伊41、見参！あんたが提督って訳かい？あの艦長とどっちがすげーかな？ま、見せておくれよ、その采配ってのを！
Introduction Play	I-class submarine, Junsen Type B Kai Ichi, I-41! Pleased ta meetcha! I'll keep a lid on the drinking today... well, try my best. Remember, surfaced by day, submerged by night!^[2]
Introduction Play	伊号潜水艦、巡潜乙型改一、その二番艦、伊41、見参！今日もお酒は程々にする努力をしつつ、まあ、頑張るぜ。昼は水上、夜は潜航、そこんとこよろしく!
Library Play	I am I-41, an I-class submarine, the second of a remodeled class of the mainstay Junsen Type Bs. Under the command of famed captain Itakura, I crossed many dangerous obstacles to accomplish my missions. We made supply runs in very dangerous waters in order to rescue his superior to whom he was very close.^[3] Don't forget... any of us.
Library Play	伊号潜水艦、主力の巡潜乙型の改良型、その二番艦伊41だ。名艦長の板倉艦長の指揮で、結構危ない橋を何度も渡って任務を成功させてきたんだ。艦長と縁の深い昔の上官を助けるために既に危険海域だったブインの補給にも向かったよ。みんなの事……忘れるなよ。
Secretary 1 Play	Eh? You're picking me? Guess I'm the only one cut out for this.
Secretary 1 Play	え?この私をご指名?しょうがねえなあ。
Secretary 1 Play	Eh? You're picking me again? Guess I'm the only one cut out for this!
Secretary 1 Play	え?またこのあたしをご指名?じゃあしょうがねえな！
Secretary 2 Play	How to handle an encounter with enemy planes? You just do that thing, you know, get on the bridge and wave your cap at them. That'll do... I think?^[4]
Secretary 2 Play	敵機に遭遇した時かい？そいつはあれだ、艦橋に出て全力で帽子を振るってのもありだ。…ありか？
Secretary 2 Play	How to handle an encounter with enemy planes? You just do that thing, you know, get on the bridge and wave your cap at them. That'll do... I think. N-Not like I survived with that though!
Secretary 2 Play	敵機に遭遇した時かい?そいつはあれだ、帽子を振ってってのもありだ。うーん、ありか。あ、あたしがこれで凌いだわけじゃないよ。
Secretary 3 Play	What, what?? I've got it right here, no need to grope around like that. Look, see, the whiskey I've been saving! Got it as payback for an old favor I did. I haven't forgotten, ya know? When you're indebted to someone, you come running when you're needed.
Secretary 3 Play	なんだなんだ～？そんなに弄らなくても、ちゃーんとあるぜ。ほら、取って置きのウィスキー！昔世話になった礼だよ。忘れちゃぁ、いないぜ？もしもの時は駆けつける、それが恩義ってやつだ。
Idle Play	Ahhh, Kaga-san? She was a beast of a ship. But she is a good person. Oh, you heard that? Just the ramblings of one of my fairies. Keep it on the down low. Alright, have a shot of whiskey! Cheers!
Idle Play	ああ、加賀さんか。加賀さんもやっべぇ艦だったな。でもさ、本当はいい人なんだ。あ、これ?これは私の妖精さんの独り言。内緒ね。さ、ウイスキーで乾杯!しよう!
Secretary Married Play	I told ya ta stop being so gloomy. What's the point of a letter or two of apologies? If the time comes, I'll come running. Absolutely. Take it easy.
Secretary Married Play	そんなしけたツラすんなって。始末書の一枚や二枚がなんだ?いざって時は、私が駆けつけてやる。絶対だ。安心しな。
Wedding Play	What, what is it, Admiral? With me? You want to be with me? I'll need drinking money, kay? I might get up ta all sorts of trouble, ya know? I might have a biiiit of a drinking habit, ya know? ... so you're okay with all that. Oh. Well, then, what can I say? Let's do it!
Wedding Play	なんだなんだ、提督。私と何?一緒になろうっての?酒代かかるぜ?結構むちゃくちゃやるかもだぜ?酒癖ちょっとだけあれかもだぜ?え、いいんだ。そっか。じゃあ、じゃあ、仕方ねーな!やるか!
Looking At Scores Play	Ugh, I'm no good at managing all these annoying lil documents. Aight, here ya go.
Looking At Scores Play	ああ、面倒な書類は苦手だな。あいよ、見といて。
Joining A Fleet Play	Sub I-41, departin'! I'm tellin' ya, I'll be back! Let's go!
Joining A Fleet Play	伊41潜、出るぜ!必ずけえってくるって!行くぞ!
Equipment 1 Play	Thanks.
Equipment 1 Play	あんがとよ。
Equipment 1 Play	Yeah, thanks.
Equipment 1 Play	ん、あんがたよ。
Equipment 2 Play	Will this work?
Equipment 2 Play	これ大丈夫かね?
Equipment 2 Play	I'll make it work!
Equipment 2 Play	これならなんとかなるか!
Equipment 3^[5] Play	Yeah, this'll do.
Equipment 3^[5] Play	ああ、いけるぜ。
Supply Play	Thaaaanks!
Supply Play	ありがてー
Docking Minor Play	Just a scratch. All it needs is a lick.
Docking Minor Play	かすり傷さ、なめとけ治る。
Docking Major Play	Well, it's not a fatal wound, but... ow-ow-ow, ooph...
Docking Major Play	まあ致命傷じゃねえけどさ、痛ってて、うっつー
Construction Play	Hmm? New girl's here.
Construction Play	はあ、新しい奴が来たね。
Returning From Sortie Play	Aaaaand, we're all safely back in port. Don't bother with an apology letter, kay?
Returning From Sortie Play	よーし、全艦無事に港に戻ったぜ。始末書は勘弁な？
Starting A Sortie Play	Sixth Fleet, First Submarine Squadron, I-41, sortieing! I'll get it done, just you watch!
Starting A Sortie Play	第6艦隊、第1潜水戦隊、伊41、出撃する！やってやんぜー、見てな！
Battle Start Play	Enemy spotted! Let's bring it to them! Prep the torpedoes! All hands, battle stations!
Battle Start Play	敵さん発見だ!仕掛けるぞ!魚雷戦用意!各自持ち場につけ!
Attack Play	Numbers 1 through 4, go! Fire!
Attack Play	1番から4番!いくぞー! てー!
Secondary Attack Play	This is how a turtle fights!^[6]
Secondary Attack Play	どん亀の戦いってのはこうするのよ！
Night Battle Play	Keep up the chase! Don't lose this chance!
Night Battle Play	追撃する!この機を逃すな!
MVP Play	Oh, a citation, huh? Nice. Would be better if you threw in a good bottle of sake with it!
MVP Play	おっと、感状ってやつか。いいね。ついでにうまい酒の一本もつけてくれたっていいぜ？
Minor Damage 1 Play	Tch! I can still do it!
Minor Damage 1 Play	くっ、まだいける!
Minor Damage 2 Play	Ugh! That was close, real close...
Minor Damage 2 Play	あっ! あぶねーあぶねー
Major Damage Play	I got hit...? Damn it! I'm not done yet!
Major Damage Play	食らったか、クソが! まだ沈むかい!
Sunk Play	Seriously... is this it? I-I think I... caused as much trouble as I could...
Sunk Play	マジか…ここまでか…あぁ、暴れるだけ、暴れた…かな…

↑ Lt Cdr Itakura Mitsuma
↑ Itakura and I-41's survival late in the war was allegedly based on this strategy, which was the opposite of standard procedure. While this counterintuitively leaves the submarine visible in broad daylight, the US Navy may have become used to hunting for surfaced submarines at night with its superior radars.
↑ This was Vice Admiral Samejima Tomoshige, who had established his Eighth Fleet headquarters in Buin, Bougainville in New Guinea. Back in 1935, Itakura had gotten upset over the behavior of a superior and punched Samejima, the captain of his ship, while drunk. Samejima showed leniency, and Itakura repaid him years later in 1944 with three dangerous runs to Buin. On one of these trips he brought a bottle of whiskey, which Samejima kept to his dying day.
↑ Another of Itakura's feats was supposedly warding off a B-24 attack on his submarine by waving his cap, pretending to be a US sub.
↑ This line is shared with expedition selection, resource collection, instant repair and development.
↑ (Soft-shelled) turtle was a derisive nickname for Japanese submarines, similar to the general English idiom of "sitting duck". Itakura's 1995 autobiography is also titled something along the lines of Diary of a Turtle Captain's Youth.

Hourlies (Kai)

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CG

Regular
Base Base Damaged Kai Kai Damaged

Trivia

Her abyssal form is assumed to be the Abyssal I-go Water Princess.

General Information

Unlike other submarines, she does not call herself by some nickname. Some potential nicknames are:
- "Shi-chan" ("Ms 4", しーちゃん), used by I-36,
- "Yoichi" (余市), an alternative reading of "41", not really used.
She was launched on the 10th of November 1942.
She sunk on the 18th of November 1944.

Update History

She was added on the 3rd of March 2024 as Early Spring 2024 Event E4 reward.

Misc

She talks a lot about her captain, LCDR Itakura Mitsumi, who had an infamous alcohol-related incident.