A6M5 Hei

A6M5 Hei

A6M5 otsu

A7M2

A6M5 Hei

A6M5 otsu

A7M2

Japan

IV Rank

Battle rating:

AB	RB	SB
5.0	5.0	4.7

Class:

Fighter

Naval aircraft

Research:27 000

Purchase:185 000

Show in game

Description

The A6M5 Hei is a rank IV Japanese fighter with a battle rating of 5.0 (AB/RB) and 4.7 (SB). It was introduced in Update "Ixwa Strike". The A6M5 Hei offers a good offensive armament as well as various payload options. The plane also has armour and self-sealing fuel tanks, grating a better durability. It retains the good flight performance on the Zero family with a turn time short enough to outmanoeuvre enemy fighters, although it can feel a little sluggish to people used to early variants. However, pilots will generally notice a reduced rate of climb, and poor acceleration.

General info

Flight performance

A6M5 Hei cruising at tree top level

Arrestor gear

Accelerates braking by grabbing the brake cable on the deck of the aircraft carrier

Max speed

at 6 000 m540 km/h

Turn time20 s

Max altitude10 900 m

EngineNakajima Sakae 21

TypeRadial

Cooling systemAir

Take-off weight3 t

Due to the weight of the self-sealing fuel tanks, pilot armour, and the additional heavy machine guns, the climb rate on this plane is rather poor for its BR. The engine is won't overheat under combat conditions. The A6M5 Hei can feel quite sluggish as it cannot turn as well as other planes in the A6M5 family. However, while the plane's turning ability is hampered by the extra weight, you will still be able to out-turn every other plane.

Characteristics	Max Speed (km/h at 6,000m)		Max altitude (metres)	Turn time (seconds)		Rate of climb (metres/second)		Take-off run (metres)
	AB	RB		AB	RB	AB	RB
Stock	519	503	10900	20.9	21.6	8.1	8.1	300
Upgraded	563	540		19.1	20	14.7	11.1

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	+	-
0	300	397	368	220	~14	~6

Optimal velocities (km/h)
Ailerons	Rudder	Elevators	Radiator
< 280	< 420	< 410	> 335

A6M5 Hei cockpit and controls

Survivability and armour

Crew1 person

Speed of destruction

Structural0 km/h

Gear300 km/h

This is the only plane in the Zero family with self-sealing fuel tanks. The A6M5 hei has three armoured components:

• 45 mm bulletproof glass in front of the pilot, angled at 68°
• 55 mm bulletproof glass behind the pilot, angled at 12°
• 8 mm of steel behind the pilot, angled at 12°

This armour is enough to survive light machine gun fire and light AA fire. However, the A6M5 Hei is still very fragile: don't rely solely on this armour, because the guns you will be facing at its battle rating will not be stopped by it. The self-sealing fuel tanks allow you to put out wing fires.

Modifications and economy

Repair costBasic → Reference

AB2 470 → 3 144

RB5 820 → 7 408

SB8 192 → 10 428

Total cost of modifications46 800

85 200

Talisman cost1 500

Crew training52 000

Experts185 000

Aces940

Research Aces480 000

Reward for battleAB / RB / SB

90 / 210 / 440 %

166 / 166 / 166 %

Modifications

Flight performance	Survivability	Weaponry
Fuselage repair Research: 2 400 Cost: 4 400 190 Radiator Research: 2 400 Cost: 4 400 190 Compressor Research: 2 600 Cost: 4 700 210 Wings repair Research: 2 900 Cost: 5 300 230 Engine Research: 2 900 Cost: 5 300 230 Engine injection Research: 3 800 Cost: 6 900 300	Airframe Research: 2 600 Cost: 4 700 210 Cover Research: 3 800 Cost: 6 900 300	type3_belt_pack Research: 2 400 Cost: 4 400 190 Type 3 No.1 Mod.28 Mk.1 rockets Research: 2 400 Cost: 4 400 190 type99mk2_belt_pack Research: 2 600 Cost: 4 700 210 Type 3 No.6 Mod.27 Mk.1 rockets Research: 2 600 Cost: 4 700 210 type3_new_gun Research: 2 900 Cost: 5 300 230 9 in (mod30) Research: 2 900 Cost: 5 300 230 type99mk2_new_gun Research: 3 800 Cost: 6 900 300 12 in (mod30) Research: 3 800 Cost: 6 900 300

Armaments

Offensive armament

Weapon 12 x 20 mm Type 99 Model 2 cannon

Ammunition250 rounds

Fire rate490 shots/min

Weapon 23 x 13.2 mm Type 3 machine gun

Ammunition710 rounds

Fire rate798 shots/min

The A6M5 Hei is armed with:

• 2 x 20 mm Type 99 Model 2 cannons, wing-mounted (125 rpg = 250 total)
• 2 x 13.2 mm Type 3 machine guns, wing-mounted (240 rpg = 480 total)
• 1 x 13.2 mm Type 3 machine gun, nose-mounted (230 rpg)

The A6M5 Hei is capable of carrying up to ten rockets

Suspended armament

List of setups (4)

Setup 12 x 60 kg Navy Type 97 Number 6 ground bomb

Setup 21 x 250 kg Navy Type Number 25 Model 2 bomb

Setup 310 x Type 3 No.1 Mod.28 Mk.1 rockets

Setup 42 x Type 3 No.6 Mod.27 Mk.1 rockets

The A6M5 Hei can be outfitted with the following ordnance:

• Without load
• 2 x 60 kg Navy Type 97 Number 6 bombs (120 kg total)
• 1 x 250 kg Navy Type Number 25 Model 2 bomb (250 kg total)
• 10 x Type 3 No.1 Mod.28 Mk.1 rockets
• 2 x Type 3 No.6 Mod.27 Mk.1 rockets

The A6M5 Hei cruises over Seversk 13, a map introduced in the same patch as the plane

Usage in battles

Realistic Battles

In Air RB, your primary focus is to engage fighters. Do not bring any payload options for this plane, as it will weigh you down significantly. Select 400 m for the gun convergence, use the Ground Targets belt for your 13 mm guns, and the Universal or Tracers belts for your 20 mm cannons. Climb at a 15° angle and you may want to try a slight side climb on smaller maps. Try climbing and staying with your team. You will be outclassed by many fighters, so play to your strengths. Engage targets that have low energy states, and try to dogfight them. Do not engage in head-ons or high altitude fighting and stay close to your allied aircraft, as the A6M5 hei works well when an enemy is overfocused on an allied plane. Try not to stall out in this plane, as your weight is increased and the relatively weak engine won't allow you to recover from stalls easily.

Arcade Battles

In Air Arcade, this plane is extremely versatile: it can engage enemy ground units with rockets, intercept bombers and hunt enemy fighters. Engage in turnfights to reduce your exposure to enemy fire and play with caution, as this plane is fragile.

Mixed Battles (Ground/Naval)

In mixed battles, the 250 kg bomb is your best option. You can fly extremely low to the ground thanks to the plane's superb manoeuvrability. Set a 1.5 second fuse on the bomb and drop it really close to the target. Once you have spent all ordnance, you can either take on fighter duties or return to the airfield and rearm.

A6M5 Hei from a scenic view

Specific enemies worth noting

• P-51 (Family): as always, anything with 0.50 cal Brownings is a threat to the A6M5 hei. These planes will always try to boom and zoom and light you an fire. These planes will usually have an altitude advantage, thanks to their amazing climb rate. To engage these fighters, make sure you have a good speed and room to dodge attacks. Try to bait a P-51 to lower altitudes or close to friendly fighters. The best way to kill an energy fighter is when it is low and slow.
• Bf 109 (Family): this planes' superb climb and energy retention allow them to make multiple boom and zoom attacks on you. Dodge these by making evasive loops to throw off the pilot and make them overshoot. Do not engage in head-ons with a Bf 109.
• XP-55: the XP-55 outperforms you in every way possible. Play smart when facing these planes, and stick with your team.

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

The Zero's manual engine controls are simple to learn. The propeller pitch should be kept at 95% at all times. The radiators both should be kept between 5 and 15% depending if you are on a hot or cold map. The second supercharger gear should be activated at 3500 m and above.

Pros and cons

Pros:

• Strong offensive armament: 3 x 13 mm HMG and 2 x 20 mm cannons
• Various payload options (bombs and rockets)
• Retains the good manoeuverability of a Zero, with a competitive turn rate
• Additional armour and self-sealing fuel tanks helps increase durability
• Tail hook, can land on carriers if necessary
• Engine will not overheat and cools off easily

Cons:

• Limited payload options
• Low energy retention
• Limited top speed and acceleration
• Average rate of climb

History

In 1944, the A6M5 Otsu failed to meet the expectations of Japanese military leaders, turning out to be just a half-measure in an attempt of aircraft engineers to modernize the A6M fighter. Furthermore Japan was in a situation where no replacement for the outdated Zero had been found yet, with the aircraft that have been designed as replacements continuously suffered setbacks and engine deficits while the war situation continued to worsen for Japan.

Faced with the increasing threat of American high-altitude bombing raids, Japanese engineers had little choice but to further modify the A6M, despite knowing it was vastly inferior to the latest aircraft flown by the Allies. As a result, in September 1944, Mitsubishi rolled out the A6M5 Hei; a modification of the late war ‘Zero’ design, but outfitted with a stronger weapons arsenal, including an expanded range of secondary weapons the aircraft could carry.

Tests of the aircraft revealed substantially degraded performance characteristics over previous variants due to weight increases. As fitting the aircraft with a different, more powerful engine, wasn’t possible, the A6M5 Hei was accepted into service nonetheless, despite its worse performance. However, as the A6M5 Hei entered production in the last stages of the war, its production numbers remained low, chiefly due to the decreasing Japanese industrial capacity in the final months of the conflict. In total, over 90 units of the A6M5 Hei were produced by Mitsubishi alone, with no available production data from Nakajima.

Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

See also

Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:

• reference to the series of the aircraft;
• links to approximate analogues of other nations and research trees.

External links

• [Devblog] A6M5 Hei: The Up-Gunned Samurai'