B6N2a Model 12Ko

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This page is about the Japanese bomber B6N2a Model 12Ko. For other versions, see B6N (Family).
B6N2a Model 12Ko
B6N2a Model 12Ko
Research:4 600 Specs-Card-Exp.png
Purchase:16 000 Specs-Card-Lion.png
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Description

The B6N2 mod. 12 Ko, designated as Tenzan 12A (天山一二型甲), was a minor variant of the standard Tenzan 12 that replaced the two Type 92 (7.7 mm) LMGs with the German-inspired 13 mm Type 2 and 7.92 mm Type 1 guns, derived from the MG 131 and MG 15 respectively. It also had an H-6 (Type 3 Ku 6 Mod.4) air-to-surface naval Yagi-antenna radar mounted on the wing leading edges and on the sides of the rear fuselage.

It was introduced in Update "Starfighters". The Tenzan 12A's improved armaments and overall agility of the Tenzan 12 can catch any pursuing aircraft off guard, as it can out-turn most of them and hit them with lethal firepower. The main role remains to be a torpedo-/level bomber, carrying either a single large bomb/torpedo, 2 x 250 kg bombs, or a rack of 6 x 60 kg. The enhanced rear firepower can be used to lure in unsuspecting fighters that might underestimate a torpedo-bomber without forward firepower.

Nicknames

General info

Flight performance

The B6N2a Model 12 Ko "Tenzan" in flight
Arrestor gear
Accelerates braking by grabbing the brake cable on the deck of the aircraft carrier
Max speed
at 4 900 m481 km/h
Turn time21 s
Max altitude9 600 m
EngineMitsubishi Kasei 25
TypeRadial
Cooling systemAir
Take-off weight6 t

The B6N2a Model 12 Ko "Tenzan" is a high performance torpedo bomber, capable of not only ground attack but naval attack, and can successfully outmanoeuvre anything it wishes (excluding biplanes). It has a powerful 1,600 hp engine and a supercharger for high altitude base bombing, and it is a highly capable aircraft.

Characteristics Max Speed
(km/h at 4,900 m)
Max altitude
(metres)
Turn time
(seconds)
Rate of climb
(metres/second)
Take-off run
(metres)
AB RB AB RB AB RB
Stock 454 441 9600 21.6 22.3 7.9 7.9 270
Upgraded 512 481 20.8 21.0 16.2 11.5

Details

Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
X
Limits
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
650 310 368 354 280 ~11 ~3
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 300 < 300 < 310 > 300
Cockpit of the B6N2a Model 12Ko

Survivability and armour

Crew3 people
Speed of destruction
Structural650 km/h
Gear310 km/h
The B6N2a Tenzan fires its lower turret at an approaching enemy fighter
  • No armour
  • Non-self-sealing fuel tanks (3 in each wing)

Modifications and economy

Repair costBasic → Reference
AB666 → 843 Sl icon.png
RB1 125 → 1 424 Sl icon.png
SB1 671 → 2 115 Sl icon.png
Total cost of modifications8 400 Rp icon.png
9 480 Sl icon.png
Talisman cost640 Ge icon.png
Crew training4 500 Sl icon.png
Experts16 000 Sl icon.png
Aces180 Ge icon.png
Research Aces190 000 Rp icon.png
Reward for battleAB / RB / SB
50 / 100 / 200 % Sl icon.png
118 / 118 / 118 % Rp icon.png
Modifications
Flight performance Survivability Weaponry
Mods aerodinamic fuse.png
Fuselage repair
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
85 Ge icon.png
Mods radiator.png
Radiator
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
85 Ge icon.png
Mods compressor.png
Compressor
Research:
470 Rp icon.png
Cost:
530 Sl icon.png
95 Ge icon.png
Mods aerodinamic wing.png
Wings repair
Research:
530 Rp icon.png
Cost:
600 Sl icon.png
105 Ge icon.png
Mods new engine.png
Engine
Research:
530 Rp icon.png
Cost:
600 Sl icon.png
105 Ge icon.png
Mods metanol.png
Engine injection
Research:
680 Rp icon.png
Cost:
770 Sl icon.png
135 Ge icon.png
Mods armor frame.png
Airframe
Research:
470 Rp icon.png
Cost:
530 Sl icon.png
95 Ge icon.png
Mods armor cover.png
Cover
Research:
680 Rp icon.png
Cost:
770 Sl icon.png
135 Ge icon.png
Mods ammo.png
mg_turret_belt_pack
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
85 Ge icon.png
Mod arrow 1.png
Mods pilon torpedo.png
17 3/4 in (mod45)
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
85 Ge icon.png
Mod arrow 0.png
Mods ammo.png
type2_turret_belt_pack
Research:
470 Rp icon.png
Cost:
530 Sl icon.png
95 Ge icon.png
Mod arrow 1.png
Mods pilon torpedo.png
Improved torpedo
Research:
470 Rp icon.png
Cost:
530 Sl icon.png
95 Ge icon.png
Mod arrow 0.png
Mods turret gun.png
mg15_turret_new_gun
Research:
530 Rp icon.png
Cost:
600 Sl icon.png
105 Ge icon.png
Mods pilon bomb.png
12 in (mod30)
Research:
530 Rp icon.png
Cost:
600 Sl icon.png
105 Ge icon.png
Mod arrow 0.png
Mods turret gun.png
type2_turret_new_gun
Research:
680 Rp icon.png
Cost:
770 Sl icon.png
135 Ge icon.png
Mods pilon bomb.png
14 in (mod35)
Research:
680 Rp icon.png
Cost:
770 Sl icon.png
135 Ge icon.png

Go for all of the bomb loads first, as they are very important, next, research suitability and engine mods, prioritize the Engine. Then unlock the turret and belts, finally, unlock wings repair and wings repair.

Armaments

Suspended armament

List of setups (5)
Setup 16 x 60 kg Navy Type 97 Number 6 ground bomb
Setup 22 x 250 kg Navy Type Number 25 Model 2 bomb
Setup 31 x 800 kg Number 80 Mod. 1 bomb
Setup 41 x Type 91 Model 2 torpedo (835 kg)
Setup 51 x Type 91 Model 3 torpedo (850 kg)

The B6N2a Model 12Ko can be outfitted with the following ordnance:

  • 6 x 60 kg Navy Type 97 Number 6 bombs (360 kg total)
  • 2 x 250 kg Navy Type Number 25 Model 2 bombs (500 kg total)
  • 1 x 800 kg Number 80 Mod. 1 bomb (800 kg total)
  • 1 x 835 kg Type 91 Model 2 torpedo
  • 1 x 850 kg Type 91 Model 3 torpedo

The 800 kg bomb will destroy 1 base, it's a good pick for maps with few ground targets! The 250 kg bombs are great for destroying pillboxes and tanks, but you can only have two of them. Make sure to use a slight dive when bombing and use the bombsight for increased accuracy! The 6 x 60 kg bombs are a great option for this plane. Since they weigh so little, you can be super accurate with these bombs, just aim the crosshair where you want the bomb to drop, and pull up. No need for a bomb sight!!! Use these bombs for light targets such as AAA, Vehicles, Armoured Cars, Artillery, Howitzers, Machine Guns, and Bridges. The torpedoes are not really useful for this plane in air battles, as ships only spawn in pacific maps, and this plane is at too low of a BR to be put in a Pacific Theater battle.

Defensive armament

Turret13 mm Type 2 machine gun
Ammunition750 rounds
Fire rate937 shots/min
Turret7.92 mm Type 1 machine gun
Ammunition300 rounds
Fire rate1000 shots/min

The B6N2a Model 12Ko is defended by:

  • 1 x 13 mm Type 2 machine gun, dorsal turret (750 rpg)
  • 1 x 7.92 mm Type 1 machine gun, ventral turret (300 rpg)
A Peashooter tries to tackle the B6N2a Model 12Ko

For the 13 mm machine gun, select "Default" belt because it has the most incendiary potential. It's a great turret for its BR. The 7.92 mm gun is a great gun, use the AP-T belt, as it has the most tracers and the most incendiary potential.

Usage in battles

This plane is great for bombing medium tanks, light pillboxes, howitzers, and vehicles. Since it is so fast, it can make multiple trips to the airfield if a resupply of bombs is needed.

For naval maps and naval gamemode it's best advised to bring the torpedo and hit ships in a quick, close, hit and run style torpedo run, the engine allows for high speeds and Japanese torpedoes are among the highest speed resistant torpedoes in-game at the cost of range of only 2 km. It is also a possibility of squading up with friends / other torpedo carrying planes to dispose of the enemy carriers / battleships in a multiple hit torpedo strike.

With the improved back gunner, experienced pilots can shred foes by baiting them in a dogfight, out-turning them and hitting them hard with the powerful 13 mm.

Manual Engine Control

MEC elements
Mixer Pitch Radiator Supercharger Turbocharger
Oil Water Type
Controllable Controllable
Not auto controlled
Controllable
Not auto controlled
Controllable
Not auto controlled
Separate Controllable
2 gears
Not controllable

Pros and cons

Pros:

  • B6N for Carrier-based torpedo bomber
  • Common Navy plane construction:
    • Excellent manoeuvrability
  • B6N Specific:
    • Great engine power, produces 1550 hp
    • High top speed for a torpedo bomber (481 km/h)
    • Ventral gunner
  • Model 12 Specific:
    • Better performing engine compared to Model 11
      • Higher top speed
      • Higher altitude
  • Model 12 Ko Specific:

Cons:

  • B6N for Carrier-based torpedo bomber
    • No offensive armament
    • No airbrakes
    • Relatively Large target
  • Common Navy plane construction:
    • Fragile, little armour, and no self-sealing fuel tanks
    • Exposed tail gunner
  • B6N Specific:
    • Dead zones directly behind the aircraft, you are better off turn fighting and using your turrets while they struggle to complete the turn

History

Main article: History of the B6N

An excellent replacement for the Nakajima B5N in the role of on-board torpedo aircraft, the B6N Tenzan entered service very late, after more than two years of testing. Named JILL in the Allied code, this large single-engine plane appeared as a prototype in spring 1941. The first tests revealed serious steering stability problems. Subsequently, there were difficulties in developing the engine and the need to reinforce the landing gear. After 133 units of the first version of the B6N1 were built, the second production model began to be delivered towards the end of 1943. A total of 1,268 units were built.

The B6N2 is the main production model of the B6N series thanks to a more readily available Mitsubishi Kansei engine, instead of a in-house Nakajima Mamori engine trialed on the B6N1.

The B6N2 has seen alot of use in the southern pacific land bases and few remaining carrier groups. Due to lack of experienced pilots and growing allied air power, the B6N couldn't accomplish the same / better feats the B5N has done in its prior years of the war and damage to the enemy fleet were low and overall performance was average.

The B6N2a Model 12Ko is a armament refit of the B6N2 Model 12 where a 7.7 mm Navy Type 92 was replaced with a 13 mm Navy Type 2.

Media

Skins
Images

See also

Related Development
Main article: B6N (Family)
Similar aircraft of comparable role, configuration and era
Main article: Torpedo bombers

External links


Nakajima Aircraft Company (中島飛行機株式会社 )
Fighters  Ki-27 otsu · Ki-27 otsu Tachiarai
  Ki-43-I · Ki-43-II · Ki-43-III otsu
  Ki-44-I · Ki-44-I 34 · Ki-44-II otsu · Ki-44-II hei
  Ki-84 ko · Ki-84 otsu · Ki-84 hei
  Ki-87
Hydroplanes  A6M2-N*
Interceptors  J1N1 · J5N1
Bombers  B5N2
  B6N1 Model 11 · B6N2 Model 12 · B6N2a Model 12Ko
  G5N1 · G8N1
  Ki-49-I · Ki-49-IIa · Ki-49-IIb · Ki-49-IIb/L
Recon  E8N2
Jet Fighters  Kikka
Captured  ␗Ki-27 otsu · ▃Ki-43-II · ␗Ki-43-III ko · ␗Ki-44-II hei · ␗Ki-84 ko
  *Refit of the Mitsubishi A6M2 mod. 11
See also  Fuji Heavy Industries (1957-2017)

Japan bombers
Navy 
Carrier-based attack bomber 
B5N  B5N2
B6N  B6N1 · B6N2 · B6N2a
B7A  B7A2 · B7A2 (Homare 23)
Carrier-based dive bomber 
D3A  D3A1
D4Y  D4Y1 · D4Y2 · D4Y3 Ko
Shipboard Observation seaplane 
F1M  F1M2
Land-based Attack bomber 
G4M  G4M1
G5N  G5N1
G8N  G8N1
Flying boat 
H6K  H6K4
H8K  H8K2 · H8K3
Land-based Bomber 
P1Y  P1Y1
Army 
Light  Ki-32
  Ki-48-II otsu
Heavy  Ki-21-Ia · Ki-21-I hei
  Ki-49-I · Ki-49-IIa · Ki-49-IIb · Ki-49-IIb/L
  Ki-67-I Ko · Ki-67-I otsu
Other countries  ▅B-17E