B7A2 Ryusei

From WarThunder-Wiki
Jump to: navigation, search


Arcade Realistic Simulator

Arcade Realistic Simulator

Arcade Realistic Simulator

General info

The B7A2 Ryusei in the garage.

The B7A2 Ryusei is a Rank III Japanese naval bomber with a battle rating of 4.3 (AB/RB) and 4.0 (SB). It was introduced in Update 1.37.

The main purpose, usage and tactics recommendations

General play style

The Ryusei is best utilized as a multi-role aircraft, similar to the role the Ju 87D-5 plays. Once its payload is dropped, the B7A2 becomes a low altitude, low speed dogfighter similar to an A6M. In realistic battles, the B7A2 is often paired with aircraft such as the A6M3 Reisen, A6M3 Reisen mod 22, and A6M3 Reisen mod 22ko. If unable to shake an enemy off your tail, these "Zeroes" can be relied on as they have impressive low altitude capabilities.

Payload choice is dependent on target choice. If the target is a light pillbox, for instance, one does not need an 800 kg bomb. Instead equip either of the other bomb loadout options. The same goes for most ground units, apart from arcade mini bases. The Ryusei is similar to aircraft such as the Ki-49-IIa Donryu in that it can "hover" above an enemy base or airfield, rapidly dropping its payload and diving up to altitude again. Since the B7A2 is a dive bomber, it does not have to be level to drop its payload accurately. The Ryusei's ability to "hover" above enemy mini bases and airfields can be a great help to any arcade battles team. Upgrading the crew reload speed makes this aircraft a potential game winner, especially when in a squad.

Similar to the Ju 87D-5, the Ryusei's airspeed is not on par with the aircraft it faces, no matter the game mode. This handicaps the B7A2 to playing solely a support role, only being able to engage the aircraft it can catch. Nonetheless, having a B7A2 on any team, no matter the game mode, never hurts.

Vehicle characteristics

The B7A2 was designed as a carrier-based dive/torpedo bomber. For an aircraft of its size, it has exceptionally good manoeuvrability, on par with the A6M Zero. Therefore it can be used in the fighter role as well, since its 2 x 20mm cannons perform very well against all other aircraft. When using the B7A2 in either dive or torpedo bombing, it is important to not rely on the B7A2's defensive gunner if an enemy is approaching. The B7A2 can quickly outmaneuver most American and Russian aircraft so use this to your advantage if you're being intercepted. You will then be able to quickly tail your enemy, and be able to engage them with your forward firing cannons. As the aircraft is seen, it is a very big target, with minimal armour. This is why it is important to not rely on your defensive gunner. In addition, the B7A2 does not have a very good climb rate, and works best at lower altitudes. Getting your guns on target can also be a pain, especially when traveling at higher speeds since the B7A2's roll rate is very poor. Most enemies are able to easily out roll the B7A2, giving them a distinct advantage in a dogfight. Nonetheless, many pilots do not expect death to come from a dive bomber.

The B7A2 wields two 20mm Type 99 mk 2 cannons placed in the wings. Since the B7A2 can be used as a multi-purpose aircraft, the B7A2's weapons will also serve those roles. Equipping the ground targets belt for the 20mm cannons can be helpful if attacking targets like light pillboxes or light tanks. The Ryusei is also capable of equipping the "Stealth" belt which is composed entirely of HEF and API shells. This belt is the best choice for air to air combat. The B7A2 pilot should remember to set his or her gun convergence lower than 400 meters to take down enemy fighters effectively. Since the cannons themselves are a fair ways apart from each other on the actual aircraft, having a low gun convergence ensures each round hits a single point on a target.

Tactics

Specific enemies worth noting

Counter-tactics

When battling the B7A2 Ryusei do note it is very manoeuvrable and will have no issues out turning many planes it may face. Use boom and zoom and energy fighting tactics in the vertical to counter the B7A2 because her poor acceleration and climb rate will not allow her to catch up to you or gain an advantage.

Pros and cons

Pros:

  • Handling and performance on par with the A6M Reisen.
  • Forward-firing 2 x 20mm cannons.
  • Defensive 13.2mm gunner for protection.
  • Performs well at low altitudes.
  • Can equip a heavy payload.

Cons:

  • Large aircraft, easy target.
  • Suffers damage very easily.
  • Slow acceleration.
  • Lots of bars in cockpit, hinders visibility.
  • Cannot perform high-speed manoeuvres.
  • Very slow roll rate.
  • Poor rate of climb.
  • Gunner is prone to being knocked out.

Specifications

Armaments

Offensive armaments

  • 2 × 20 mm Type 99 Mk 2 cannon, wing-mounted (200 rpg = 400 total)

Defensive armaments

  • 1 × 13 mm Type 2 machine gun, dorsal turret (1,000 rpg)

Payload

  • 10 × 60 kg Navy Type 97 Number 6 ground bombs
  • 2 × 250 kg Type 98 bombs + 4 × 60 kg Navy Type 97 Number 6 ground bombs
  • 1 × 800 kg Navy Type Number 80 Model 1 bomb
  • 1 × 850 kg Type 91 Mod. 3 torpedo

Armour

  • 13 mm Steel plate in the nose.

Engine & mobility

Arcade Realistic Simulator

Arcade Realistic Simulator

Arcade Realistic Simulator


Engine

Name: Nakajima Homare 12 18-cylinder radial
  • Cooling type: Air
  • Max power: 1382 hp (Stock), 1746 hp (Upgraded)
  • Takeoff power: 1640 hp (Stock), 2003 hp (Upgraded)
  • Mass: 830 kg
Name: Nakajima Homare 12 18-cylinder radial
  • Cooling type: Air
  • Max power: 1367 hp (Stock), 1540 hp (Upgraded)
  • Takeoff power: 1624 hp (Stock), 1797 hp (Upgraded)
  • Mass: 830 kg
Name: Nakajima Homare 12 18-cylinder radial
  • Cooling type: Air
  • Max power: 1367 hp (Stock), 1540 hp (Upgraded)
  • Takeoff power: 1624 hp (Stock), 1797 hp (Upgraded)
  • Mass: 830 kg

Stats

Stock
  • Max speed: 538 km/h
    • at height: 6550 m
  • Max altitude: 8260 m
  • Turn Time: 29.4 s
  • Rate of Climb: 5.4 m/s
  • Takeoff run: 270 m

Upgraded

  • Max speed: 594 km/h
    • at height: 6550 m
  • Max altitude: 8260 m
  • Turn Time: 26.7 s
  • Rate of Climb: 17.7 m/s
  • Takeoff run: 270 m
Stock
  • Max speed: 527 km/h
    • at height: 6550 m
  • Max altitude: 8260 m
  • Turn Time: 29.8 s
  • Rate of Climb: 7.2 m/s
  • Takeoff run: 270 m

Upgraded

  • Max speed: 565 km/h
    • at height: 6550 m
  • Max altitude: 8260 m
  • Turn Time: 28.0 s
  • Rate of Climb: 10.4 m/s
  • Takeoff run: 270 m
Stock
  • Max speed: 527 km/h
    • at height: 6550 m
  • Max altitude: 8260 m
  • Turn Time: 29.8 s
  • Rate of Climb: 7.2 m/s
  • Takeoff run: 270 m

Upgraded

  • Max speed: 565 km/h
    • at height: 6550 m
  • Max altitude: 8260 m
  • Turn Time: 28.0 s
  • Rate of Climb: 10.4 m/s
  • Takeoff run: 270 m

Performance

Warning this is still in the test phase and is probably incorrect. Take information with a grain of salt (data taken from 1.55)




0
1
2
3
4
5
6
7
8
9
10
0
0.4
0.8
1.2
1.6
2
Horsepower in 1000hp
Altitude in 1000m

Supercharger Stage #1: 100%

Supercharger Stage #1: WEP

Supercharger Stage #2: 100%

Supercharger Stage #2: WEP



Modules & Improvements

Since the B7A2 is a multi-role aircraft any module research path is viable. Unlocking performance modules will boost survivability and damage potential in dogfights, whereas unlocking armament modules will help with ground attack. Some of the best modules to unlock are the "engine injection" and "offensive 20mm belts".

History of creation and combat usage

TOAaF1X.jpg

Two-seat carrier-based Aichi B7A2 Ryusei "Shooting Star" or "Meteor" Torpedo/Dive Bomber (Allied reporting name: Grace). The B7A was an answer to a specification for a carrier-based torpedo/dive bomber in 1941. It was intended to replace B6N and D4Y, having an internal and external payload, increased speed and long-range. Some of the design features of the B7A include; inverted gull-wings, conventional fuselage and tail unit and a four-bladed propeller. During its development, it went through a series of shortcomings, such as the delivery of engines, and an accidental earthquake which destroyed the main factory housing most of the B7A's. Thus not seeing active service until 1944. By this time, there were no aircraft carriers capable of operating the B7A. The last aircraft carrier being the Shinano, was sunk 10 days after its commission. The B7A2 was then forced to operate in home-defence operations, seeing limited service.

Known as the AM-23 within Aichi, the first prototype was completed and flown in May 1942 which was designated the B7A1 by the Navy. The B7A used the Nakajima NK9C 12 Model radial engine, producing 1,825 hp. This gave the aircraft exceptionally good speed, even when fully loaded with ammunition and bombs. During flight testing, the Navy were very impressed with its performance. Despite it being a very large light bomber, the B7A1 displayed handling and performance comparable to the Mitsubishi's A6M Zero and a further 8 prototypes were ordered. However, with more testing under way, it was noted that the engine (which was experimental as well) suffered teething problems, and the air-frame of the aircraft needed modifying structurally. It was not until two years later that the B7A would begin production in 1944.

Up until May 1945, 80 B7A2's had been completed. But soon after, a sever earthquake occurred, destroying the factory housing the aircraft that were being assembled. A further 25 more examples were completed by another factory. Throughout the B7A2's service, different variants were planned. Firstly, was an experimental production B7A2, that was fitted with the Nakajima Homare 23 radial engine, producing 2,000 hp. Only 1 was built. Secondly, came the B7A3 Ryusei-Kai. This was to use the Mitsubishi Ha-43 radial engine producing 2,200 hp but it was not built. Lastly, came the B8A1 Mokusei "Planet". This was to have no carrier equipment and no gull wings. In additon, 2 x Type 99 20mm cannons were to be replaced with 2 x Type 5 30mm cannons. The B8A remained on the drawing board before the war ended, with no mock-up even though it was accepted to be built.

In all, 9 B7A1's, and 105 B7A2's were produced. 114 in total.

Katori Naval Air Base, Chiba-Prefecture, Japan, May 1945
- 752nd Naval Air Group

Kanogawa-Prefecture, Japan, April 1945
- Yokosuka Naval Air Group

Screenshots and fan art

Skins and camouflages for the B7A2 Ryusei from http://live.warthunder.com

Additional information (links)

Horsepower graphSidebar

[expand] [collapse] Japan Aircraft [collapse] [expand]

IJNAF Fighters
   Rank 1   
   Rank 2   
   Rank 4   
   Rank 5   
IJAAF Fighters
IJAAF Twin-engine Fighters
   Rank 1   
   Rank 2   
   Rank 3   
   Rank 4   
   Rank 5   
IJNAF Attackers
   Rank 1   
   Rank 2   
   Rank 3   
  • B7A2
   Rank 4   
   Rank 5   
Bombers
   Rank 1   
   Rank 2   
   Rank 4   
   Rank 5   
Premium & Gift aircraft
   Rank 1   
   Rank 2   
   Rank 3   
   Rank 4   
   Rank 5   


Arcade ☑ Realistic ☐
Simulator ☐

Arcade ☐ Realistic ☑
Simulator ☐

Arcade ☐ Realistic ☐
Simulator ☑


b7a2.png

Icon-country-jap.png B7A2 Ryusei
Nation Japan
Type Torpedo Bomber
Light Bomber
Dive Bomber
Fighting style Ground Attack
Bombing
Strike Fighter
Close Air Support

   Metric✓       Imperial   

   Metric       Imperial✓   

Characteristics
Empty Weight ~3810 kg
Empty Weight + fuel ~5470 kg
Takeoff Weight ~6500 kg
Wing Area ~35 m²
# Flap Positions 3
Number of Engines 1
Air Brakes yes
Arrestor Gear yes
Statistics
Power per Engine 1540 hp
WEP Duration 5.33 minutes
top speed ~378.00 kph at 6550 m
Climb Rate ~6.50 m/s
Optimal climb velocity ~250.56 kph
Turn Time ~21.42 s
Wing loading (Empty) ~108.00 kg/m²
Characteristics
Empty Weight ~8400 lb
Empty Weight + fuel ~12059 lb
Takeoff Weight ~14330 lb
Wing Area ~381 ft²
# Flap Positions 3
Number of Engines 1
Air Brakes yes
Arrestor Gear yes
Statistics
Power per Engine 1540 hp
WEP Duration 5.33 minutes
Top speed ~234.88 mph at 21490 m
Climb Rate 21.33 ft/s
Optimal climb velocity ~155.69 mph
Turn Time 21.42 s
Wing loading (Empty) ~22.12 lb/ft²
Main Weapons
2 x Type 99 Mk 2 200 rpg
1 x Type 2 1000 rpg
Payload Option 1
10 x 💣 60 kg Type 97 mod.6 Bomb
Payload Option 2
4 x 💣 60 kg Type 97 mod.6 Bomb
2 x 💣 250 kg Type 98 mod.25 Bomb
Payload Option 3
1 x 💣 800 kg No.80 Model 1 Bomb
Payload Option 4
1 x Torpedo 859kg Type 91 mod.3 torpedo
Limits
Max Speed limit 680 kph
Gear lmit 350 kph
Combat Flaps 480 kph
Max static +G's ~16
Max static -G's ~16
Optimal Velocities
Ailerons <460 kph
Rudder <460 kph
Elevators <420 kph
Radiator >255 kph
Limits
Max Speed limit 423 mph
Gear lmit 217 mph
Combat Flaps 298 mph
Max static +G's ~16
Max static -G's ~16
Optimal Velocities
Ailerons <286 mph
Rudder <286 mph
Elevators <261 mph
Radiator >158 mph
Manual Control
Mixer is controllable
Pitch is controllable
no automatic pitch
Radiator (water) is controllable
Radiator (oil) is not controllable
Oil and water uses combined radiator control
Supercharger is controllable
Turbocharger is not controllable
Compressor settings 1
Optimal Altitude
2000 m
6562 ft
100% Enginepower 1625 hp
WEP Enginepower 1895 hp
Compressor settings 2
Optimal Altitude
6200 m
20341 ft
100% Enginepower 1420 hp
WEP Enginepower 1656 hp
* Warning this is still in the test phase and can be incorrect. Take information with a grain of salt (data from 1.57 initial release)