Japan Air - Everything

NOTE: DESCRIPTION IS HEAVILY W.I.P.! NOT ALL STATEMENTS BELOW ARE ACCURATE TO THE CURRENT TECH TREE!

Version of a Japanese air tech tree for War Thunder, featuring just about every aircraft I could find. This includes many prototype, mockup, concept, and proposal aircraft.
I have done my best to ensure each aircraft has at least some basis in reality (no completely made up designs). If you have any information on aircraft I have missed, or aircraft I have included that are verifyably fake, please do let me know.

This is by no means what I would want the JP air tree in War Thunder to look like. It is first and foremost a for-fun project, as well as something to take inspiration from, shedding some light on lesser-known aircraft and variants thereof that could be added to fill the many gaps currently in the in-game tech tree.
Also note that all (unique) vehicles that are premiums in WT are standard tree vehicles here. Vehicles that I have not found any place for are in what would normally be the premium area, denoted as squadron vehicles.

As of December 2025 I've decided to also add Thai/Indonesian/Malaysian aircraft to the tree, in line with the subtrees seen in WT. 

Some symbols used in other modes have been used to further specify aircraft types:
- Attack Helicopter (yellow diamond) -> Interceptor / Heavy Fighter / Night Fighter
- Utility Helicopter (green pentagon) -> Reconnaisance / Observation
- Motor Gun Boat (blue flag) -> Floatplane
- Frigate (orange boat) -> Flying Boat
- Battleship (red boat) -> Superheavy Flying Boat
- Gun Barge (beige square) -> ASW Aircraft
- SPAA (purple shape) -> Escort Fighter/Bomber

Battle ratings are a bit all over the place also. I've tried my best to keep things somewhat reasonable, but I am by no means a balance expert.
BR's for rank 6 and above are especially messed up, as some planes were artificially moved up due to performance while others simply received the standard +1 BR applied to most of the tree

Rank I
Navy Fighters
A1N1 Reserve (1.0)
+1
A2N1 1.3
+1
A2N3 1.3
+1
A4N1 1.7
A5M1 Model 1 2.0
+1
Army Fighters
Type 91-1 Fighter Reserve (1.0)
+1
Ki-5 1.3
Ki-10-I 1.7
+2
Ki-11 1.7
Ki-12 2.0
+1
Interceptors / Heavy Fighters
T-3 1.0 ,
Ki-8 1.3
J1N1-F 2.0 ,
Ki-38 2.3
+2
Ki-109 2.7
Attackers / Dive Bombers
🇹🇭 Boripatra (1st Prototype) 1.0 ,
Ki-4 1.0
+1
K11W1 1.3 ,
+1
D1A1 1.3 ,
+1
D3A1 Model 11 2.0 ,
+2
Torpedo Bombers / Hydroplanes
B2M1 Reserve (1.0) ,
+1
H1H2 1.0
+1
B3Y1 1.0 ,
+1
E10A1 1.3
+1
E7K1 1.3
+2
Light / Medium Bombers
Ki-2-I 1.0 ,
+1
Ki-3 1.0 ,
G1M1 1.3 ,
+1
G3M1 Model 11 1.7 ,
+1
G3M2 Model 22 2.0 ,
+1
Heavy Bombers
Ki-1-I 1.0 ,
+1
Ki-20 1.3 ,
🇯🇵 Fiat I-Type (Yi-shiki) 2.0 ,
Ki-19 2.0 ,
Ki-21-I Ko 2.3 ,
Kogiken Plan IV Recon 0.0 ,
🇹🇭 Prajadhipok 1.0
🇹🇭 Hawk II 1.7
+1
AXH1 1.7
🇯🇵JRF-5 1.7
Kogiken Plan IV Type A Revised Recon 0.0 ,
🇯🇵 Blenheim Mk.I 2.0 ,
+1
🇹🇭 Martin 166 2.3 ,
AXV1 2.3
🇯🇵 Ju 87 K-1 2.0 ,
D.510J / AXD1 2.0
🇯🇵 PBY-6A 2.3
🇹🇭 Hawk 75N 2.7
Rank II
A5M2 Model 21 Ko 2.0
+2
A5M4 Model 24 2.3
+2
N1K1 3.3
+1
A6M1 Prototype 3.7
Ki-28 2.3
+1
Ki-27 Ko 2.7
+3
Ki-43-I Ko 3.0
+2
Ki-43-II Ko 3.3
+2
J1N1-S 2.7
+1
C6N1-S Model 11 2.7
+1
J1N1 Model 11 (e) 3.0
+1
Ki-45 Ko 3.3
+1
Ki-45 Hei 3.0
+2
Ki-36 2.0
+1
Ki-51 2.3 ,
+2
D4Y1 Model 11 2.7 ,
+1
D4Y2a Model 12 Ko 3.0 ,
+2
Ki-48-II Otsu 3.0 ,
+2
H3H1 1.7
+2
B5N1 1.7 ,
+1
H5Y1 2.0
+2
E13A1 Ko 2.0
+2
Q1W1 Model 11 2.0
+1
Ki-32 2.0 ,
+1
Ki-15-I 2.0 ,
+2
Ki-15-III 2.7 ,
Ki-48-I Ko 2.7 ,
+1
Ki-48-II Ko 3.0 ,
+2
Ki-21-I Otsu 2.7 ,
+1
Ki-21-II Ko 3.0 ,
+1
Ki-49-I 3.7 ,
+1
Ki-49-II Otsu 4.3 ,
+1
🇯🇵 TBM-3S2 2.3 ,
Ki-27 Otsu Tachairai 2.7
🇯🇵 B-339D 3.3
+1
🇯🇵 Bf 109 E-7 4.0
🇯🇵 F4U-1 4.0
Kogiken Plan IV Type B Revised Recon 0.0 ,
Hagiri's A5M4 2.3
A8V1 2.3
A7He1 3.0
🇯🇵 CW-21B 3.3
+1
AXHe1 2.3
DXHe1 2.3 ,
🇹🇭 P-64 3.0
🇯🇵 LaGG-3-8 (VYa-23) 3.0
🇯🇵 DB-7C 3.0 ,
Rank III
A6M2 Model 11 4.3
+1
A6M3 Model 32 5.0
+1
A6M3a Model 22 Ko 5.3
+1
A6M5 Model 52 5.7
Ki-44-I Ko 3.3
+2
Ki-44-II Ko 3.7
+2
Ki-44-II Hei 4.0
+1
Ki-60.01 4.0
+2
Ki-61-I Ko 4.0
+1
Ki-46-II (37mm) 3.3
Ki-46-III 4.0
+1
Ki-102 Ko 4.3
+2
Ki-96 4.7
+1
Ki-108 4.7
+1
Ki-66-I Hei 3.7 ,
+2
D4Y3a Model 33 Ko 3.7 ,
+2
Ki-46-III Otsu 4.0
P1Y1 Model 11 4.0 ,
+3
P1Y1-S Model 21 4.3
+2
H6K1 Model 1 2.3
+1
H6K4 Model 22 2.3
+1
B6N1 Model 11 2.7 ,
+1
B6N2a Model 12 Ko 3.0 ,
+1
G4M1 Model 11 (e) 3.3 ,
+2
G4M2 Model 22 3.7 ,
+2
G4M2 Model 24 4.0 ,
+3
🇮🇩 B-25J 4.7 ,
Ki-49-III 5.0 ,
G5N1 5.0 ,
+1
G5N2 5.3 ,
+1
Ki-44-I 34 3.3
🇹🇭 Firefly FR.1 4.3
🇯🇵 P-51C-11-NT 4.7
🇯🇵 Ju 88 A-4 3.7 ,
🇯🇵 Me 210 A-2 4.3
🇮🇩 P-51D 5.0
🇯🇵 F6F-5 4.0
🇹🇭 SB2C-5 4.7 ,
🇮🇩 B-26B 5.3 ,
Rank IV
A6M5a Model 52 Ko 6.0
+2
A6M6c Model 53-C 6.0
A6M8 Model 64 6.3
A7M1 6.3
+1
Ki-43-III Ko 4.3
+2
Ki-88 4.7
+1
Ki-44-III Ko 5.3
+1
Ki-61-I Hei 5.3
+2
Ki-100-I Ko 5.3
+2
J2M1 5.0
+1
Ki-61-I KAI Tei 5.3
+1
S1A1 5.7
+1
Ki-64 6.0
+1
J2M3 Model 21 6.3
+3
P1Y2 Model 16 4.3 ,
+2
P1Y3 Model 13 4.3 ,
+2
P1Y6 Model 17 4.7 ,
+2
A6M2 Model 21 "Bakusen" 4.7
+2
E15K1 3.7
+2
H11K1-L 4.0
+1
M6A1 4.0
+2
H8K1 Model 11 4.3
+1
G4M2 Model 25 4.3 ,
+2
G4M3 Model 34 Ko 4.7 ,
+1
G4M3 Model 34 Hei 4.7 ,
+1
Ki-74-I 5.3 ,
+1
Ki-67-I Ko 5.0 ,
+2
Ki-67-I KAI 5.7 ,
+1
Ki-67-II 5.7 ,
+1
G7M1 6.3 ,
+1
Ki-44-III 4.7
🇯🇵 Fw 190 A-5 5.3
🇯🇵 B-17D 5.3 ,
+1
🇯🇵 He-119 4.7 ,
Tada's Ki-61-I Hei 5.3
🇹🇭 F8F-1 5.7
🇮🇩 P-51K 6.0
Rank V
A7M3 6.7
+1
N1K1-J 6.7
+3
N1K2-J 7.0
+2
N1K4-J 7.0
+1
J4M1 7.0
Ki-61-II KAI Ko 5.7
+1
Ki-106.02 6.0
+1
Ki-84-I Ko 6.3
+2
Ki-87-I 6.3
+2
Ki-84-I Hei 7.0
+1
J7W1 6.7
+1
J2M4 Model 32 6.7
+2
Ki-83 7.0
+1
Ki-94-I 7.0
+1
Ki-93-I Ko 5.7
+1
Ki-119 6.3
N1K1-J Hei 6.7
+1
Ki-104 7.0
H8K3 Model 22 4.7
+2
B7A1 4.7 ,
+2
B7A3 5.0 ,
+1
Ki-67-I "Yasukuni" 5.3 ,
+1
Ki-74-II Ko 5.7 ,
+2
🇮🇩 Tu-2S 6.3 ,
Kogiken Plan II Light Bomber 6.7 ,
Kogiken Plan III Light Bomber 7.0 ,
+1
G8N1 7.0 ,
+2
Ki-91 7.3 ,
+1
Fugaku (G10N1*) 7.7 ,
Kogiken Plan I Type A High Speed Heavy Bomber 7.7 ,
+1
🇮🇩 Avia B-33 6.0
🇹🇭 Spitfire FR.14E 6.7
Rank VI
R2Y1 7.3
A8K1 7.7
Kikka 8.0
R2Y2 KAI 8.7
Ki-98 7.0
Ki-84-III 7.3
+2
Ki-162 7.7
Ki-201 8.3
J3K1 7.3
+1
Kogiken Plan I Type A Heavy Fighter 7.3
+2
J1N2* 7.7
J7W2 8.0
🇹🇭 OV-10C 7.0
+1
🇹🇭 AT-6TH 7.3
Tenga 7.7 ,
🇯🇵 T-33A 7.7
+2
K-60 5.7
KX-3 7.0 ,,,
K-200 7.7
PS-1 7.7
Kogiken Plan V Light Bomber 7.3 ,
+1
🇮🇩 T-33A 7.7
+1
🇲🇾 MB-339AM 8.3
+1
Kawasaki Plan High Speed Heavy Bomber 7.7 ,
+2
Tashikawa Plan II High Speed Heavy Bomber 8.0 ,
+1
Kogiken Plan IV Heavy Bomber 8.0 ,
🇯🇵 P-2H 7.7 ,
+1
🇮🇩 Gannet AS.1 6.7
Rank VII
J8M1 9.0
+2
🇯🇵 F-86F-30 10.0
+1
🇯🇵 F-86D 10.7
+1
Ki-200 9.0
+1
T-1A 9.0
+1
T-1C 9.3
+1
Katsuodori 8.7
🇯🇵 Vampire T.55 9.0
🇮🇩 MiG-17F 10.7
+1
🇹🇭 F-84G-21-RE 8.7
XT-4 (FT-20) 9.0
+1
T-4 9.7
+1
🇮🇩 Vampire T.55 9.0
🇹🇭 F-86F-30 10.0
🇮🇩 CA-27 Mk.32 10.3
+1
🇮🇩 TA-4H 9.3
+1
🇮🇩 A-4E 9.7
+1
🇮🇩 Il-28 9.0 ,
+1
🇯🇵 P-3C 9.3 ,
🇮🇩 Tu-16 10.0 ,
+1
🇯🇵 F-86F-40 JASDF 10.7
Rank VIII
F-100J 11.0
+1
F-4EJ (Early) 11.3
+1
F-4EJ 12.0
+1
XT-2 11.0
T-2 11.3
+2
F-1 11.7
🇮🇩 MiG-19S 11.3
+1
F-104DJ 11.3
F-104J 11.7
🇲🇾 Hawk 108 11.0
+1
🇲🇾 Hawk 208 11.3
+1
🇹🇭 Alpha Jet TH 11.7
🇹🇭 F-5A 11.7
🇹🇭 F-5E FCU 12.3
+1
🇮🇩 F-5E 12.0
+1
XP-1 10.3 ,
+1
T-2 Early 11.3
🇲🇾 F-5E 12.0
+1
F-4EJ ADTW 12.0
🇯🇵 MiG-25P Red 31 12.3
Rank IX
F-4EJ KAI 13.0
F/A-18AJ 13.3
F-15J 14.0
+1
🇯🇵 Tornado-J 13.0
F-16AJ 13.7
+1
FS-X (early) 14.3
+1
🇯🇵 Mirage F1 (J79/J1Q) 13.0
🇲🇾 MiG-29N 14.3
🇮🇩 Su-27SK 14.3
+1
🇹🇭 A-7E 11.7
🇹🇭 AV-8S 12.0
🇮🇩 A-29 Super Tucano 12.0
🇹🇭 F-16A ADF 13.7
+1
🇹🇭 F-16A Block 15 OCU 13.7
+1
🇹🇭 F-5TH TCU 14.0
+1
🇮🇩 F-16A Block 15 OCU 13.7
🇮🇩 F-16C Block 25 14.0
+1
F-15J (204th TFS) 14.0
Rank X
F-15J Kai (F-15MJ) 15.0
+2
🇮🇩 F-15IDN 16.0
🇯🇵 F-35A 16.0
+1
F-2A 14.7
+1
F-2 Super Kai 15.3
+1
F-3 / F-X 16.3
🇮🇩 Su-30MK2 15.3
+1
🇮🇩 Su-35S 15.7
🇮🇩 KF-21 Boramae 16.0
🇹🇭 T-50TH 14.3
+1
🇹🇭 FA-50TH 14.7
+1
🇹🇭 F-16AM Block 20 MLU 14.7
+1
🇹🇭 JAS39C 14.7
+1
🇹🇭 JAS39E 15.3
+1
🇮🇩 F-16AM 14.7
+1
🇲🇾 F/A-18D Late 15.0
🇮🇩 Rafale F4 15.3
🇮🇩 TAI Kaan 16.3
F-2A ADTW 14.7