A7M1 (NK9H)

A7M1 (NK9H)

A7M1 (NK9H)

Japan

IV Rank

Battle rating:

AB	RB	SB
5.0	5.0	4.7

Class:

PREMIUM

Fighter

Naval aircraft

Purchase:4 080

Show in game

This page is about the Japanese premium fighter A7M1 (NK9H). For the regular version, see A7M2.

Description

The A7M1 Reppu (NK9H) is a premium rank IV Japanese fighter with a battle rating of 5.0 (AB/RB) and 4.7 (SB). It was introduced in Update 1.53 "Firestorm".

The A7M1 Reppu is the prototype version of the A7M2 in the tech tree fitted with a NK9H engine. In game this fighter is a jack of all trades - excellent energy retention, amazing turn rate, and acceptable speed. These traits make the Reppu an excellent weapon for players who enjoy being the tip of the spear.

General info

Flight Performance

Characteristics	Max Speed (km/h at 6,900 m)		Max altitude (meters)	Turn time (seconds)		Rate of climb (meters/second)		Take-off run (meters)
	AB	RB		AB	RB	AB	RB
Stock	594	578	11000	15.7	16.2	13.6	13.6	250
Upgraded	639	617		14.8	15.0	21	16.9

Details

Features
Combat flaps	Take-off flaps	Landing flaps	Air brakes	Arrestor gear
✓	✓	✓	X	✓

Limits
Wing-break speed (km/h)	Gear limit (km/h)	Combat flaps (km/h)	Max Static G
			+	-
826	310	510	~12	~10

Optimal velocities
Ailerons (km/h)	Rudder (km/h)	Elevators (km/h)	Radiator (km/h)
< 400	< 380	< 380	> 317

Compressor (RB/SB)
Setting 1
Optimal altitude	100% Engine power	WEP Engine power
2,000 m	1,875 hp	2,089 hp
Setting 2
Optimal altitude	100% Engine power	WEP Engine power
6,000 m	1,675 hp	1,866 hp

Survivability and armour

• 13 mm steel plate behind seat, tilted 13°
• 70 mm bulletproof glass forward of seat, tilted 24°
• Self-sealing fuel tanks

Armaments

Offensive armament

The A7M1 (NK9H) is armed with:

• 2 x 20 mm Type 99 Model 2 navy cannons, wing-mounted (200 rpg = 400 total)
• 2 x 13.2 mm Type 3 navy machine guns, wing-mounted (300 rpg = 600 total)

Suspended armament

The A7M1 (NK9H) can be outfitted with the following ordnance:

• Without load
• 2 x 60 kg Navy Type 97 Number 6 bombs (120 kg total)

Usage in battles

Describe the tactics of playing in an aircraft, the features of using vehicles in a team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view, but instead, give the reader food for thought. Examine the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).

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

Modules

Tier	Flight performance		Survivability	Weaponry
I	Fuselage repair	Radiator		Offensive 13 mm
II		Compressor	Airframe	New 13 mm MGs	9 in (mod30)
III	Wings repair	Engine		Offensive 20 mm
IV		Engine injection	Cover	New 20 mm cannons
This is a premium vehicle: all modifications are unlocked on purchase

Pros and cons

Pros:

• Excellent energy retention
• Exceptional maneuverability below 500km/h IAS
• Great armaments

Cons:

• Engine tends to overheat
• Slow compared to allied fighters
• Elevator lock up above 500+ km/h IAS
• Slow roll rate
• Cannons have low rate of fire

History

In late 1940, Just after the A6M started entering its production phase, the navy requested Mitsubishi to start development of a direct successor by 1941, but due engine choice for a high-output compact engine was scarce, and the development team having their hands filled with development of the A6M2 Mod.21 and developing the J2M made Mitsubishi decide to scrap the request.

By 1942 as development of the A6M3 Mod.32 and J2M2 Mod.11 have been finished, the navy once more ordered Mitsubishi and their team to design a direct successor which would be faster and as nimble as the Zero, but as before, engines which would suit the plane were still in development and the team had to design a plane while still having to wait on a viable engine.

As development of the A7M platform came to an end, the last set piece and main problem of the A7M development, being the engine led to the first prototype to make use of the Nakajima NK9 "Homare". This singular plane would be the first A7M and respectively would become the A7M1 and a trial flight would be performed on the 6th of May, 1944.

While the wingload was acceptable of 150 kg/m², maneuverability and handling were excellent but the engine was simply underpowered and couldn't meet the speed requirements the Navy were looking for and ended up in a disappointed cancel of the project.

But as Mitsubishi already got a greenlight to use Mitsubishi's home-made engine with the MK9 beforehand, the project sparked interest once more for the Navy with the A7M2.

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

Paste links to sources and external resources, such as:

• topic on the official game forum;
• encyclopedia page on the aircraft;
• other literature.

Mitsubishi Company (三菱商会)
Fighters	A5M4 · Hagiri's A5M4
	A6M2 mod. 11 · A6M2 · A6M3 · A6M3 mod. 22 · A6M3 mod. 22Ko · A6M5 · A6M5 Ko · A6M5 otsu · A6M5 Hei · A6M6c
	A7M1 (NK9H) · A7M2
	J2M2 · J2M3 · J2M4 Kai · J2M5 · J2M5 (30 mm)
Hydroplanes	F1M2
Interceptors	Ki-83 · Ki-109
Bombers	G4M1
	Ki-21-Ia · Ki-21-I hei · Ki-67-I Ko · Ki-67-I otsu
Jet Fighters	Ki-200
Captured	▃A6M2 · ␗A6M2
See also	Mitsubishi Heavy Industries, Ltd. (Post-War)