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A6M8 Model 54 (Final produced A6M "Zero")


た れ ぱ
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Would you like to see the A6M8 Model 54?  

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  1. 1. Would you like to see the A6M8 Model 54?

    • Yes
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Attention

This is A6M8 "Model 54". It is different from generally known A6M8 "''.(A6M8 already proposed is called "Model 64".)Two A6M8 "Model 54" were produced, but none of A6M8 "Model 64" was built.

Background

cliPY25.jpg

 

A6M8 was the last type of A6M produced. For a long time, the output of the A6M engine was only 843 kW(1,150 hp), but as a result of the engine becoming Mitsubishi Kinsei 62 engine with 1,163 kW (1,560 hp), significant performance improvement was realized. In addition, bulletproof steel, bulletproof glass and bulletproof fuel tank was equipped. Although the weight increased, the speed of turning became faster, so the turning performance was rather improved and the traditional amazing mobility recovered. A6M8 Model 54 which is the prototype of A6M8, two units were completed in 1945 April 22 by remodeling A6M5c and first flight took place on 28th April in Suzuka factory. In May it was handed over to the Navy and then moved to Misawa base to avoid air raids. Initially, the Japan Imperial Navy did not support the plan of A6M8 very much, but they ware deeply moved by the performance and instructed to produce 6,300 aircraft as A6M8 Model 64. However, bacause of Japan surrendered, nothing was produced.

 

Performance

Wingspan: 36.0 ft (11.0 m)
Length: 30.4 ft (9.237 m)
Height: 11.7 ft (3.57 m)
Wing area: 229.3 ft² (21.30 m²)
Empty weight: 4,739.9 lb (2,150 kg)
Loaded weight: 6,944.6 lb (3,150 kg)
Engine: Mitsubishi Kinsei 62 1,163 kW (1,560 hp)
Max speed: (When not using WEP) 309 kt (572.3 km/h, 355.6 mph) at 19,685 ft (6,000 m)
Rate of climb: (When not using WEP) 19,685 ft (6,000 m)/6m50s
Service ceiling: 36,745.4 ft (11,200 m)
Never exceed speed: 400 kt (740.8 km/h, 460.3 mph)   
Range: (Normal) 528.2 mi (850 km, 459 nmi)
              (Increasing tank) Full speed 30 minutes + 745.6 mi (1,200 km, 647.9 nmi)

Takeoff Run: 200m

Landing speed: 74.5kt (138km/h)

Reduction ratio: 0.633

Propeller diameter: 3150mm

Propeller pitch: 24"/49"

Lubricating oil capacity: 63ℓ
Guns: 2× 20mm Type 99 Mark 2 Model 4 in the wings (250 rounds)
            2× 13.2mm Type 3 machine gun in the wings (480 rounds)
Bombs: 4× 66.1 lb (30 kg) bombs or
               2× 132.3 lb (60kg) bombs or

               1× 551.2lb (250 kg) bombs or (Only when installing a special 250 kg bomb suspension system)

               1× 1,102.3 (500 kg) bombs or
               ‎2× 145 lb (65.8 kg)Type 3 No.6 Mk 27 Model 1 Rocket bombs or
               ‎10× 20 lb (9.1 kg) Type 3 No.1 Mk 28 Model 1 Rocket bombs

 

Performance tested with 91 octane fuel

Others are the same as A6M5b.

 

Changes from A6M5b which is already in the game

↓Because there are too many materials, it was stored↓

Spoiler

 

⚠This is A6M8 "Model 54". It is only a remodeled version of A6M5c. Elements changed in A6M6 and A6M7 as in "Model 64" are not included.
・Added 13.2mm machine gun in the wings.

・Store a magazine with a hinged spring stop pin type lid at the front edge between the ribs 12 to 17. Along with this, increase the thickness of the main wing skin by 0.2 to 0.4 mm

・Transfer ribs 11 inside 50 mm and equip 13 mm machine gun between ribs 11 and 12.

・Drill holes in the front girder plate, reinforce with a plate from the front and rear surfaces, and make the middle rib 12 airtight.

・Install a bomb hanging device and a beam mounting bracket for the rocket at the front edge between the ribs 12 to 13 and 13 to 14.

・Make the wing fuel tank a bulletproof tank.

・Abolish machine gun in body.

・Equip ballistic glass behind the cockpit.

・Battery changed from type 21 to type 22.

・Change the position of oxygen bottle, no electricity, battery and anti-icing liquid tank etc.

・Four point support drop tanker anti-vibration.

・Wooden drop tank
・Redesigned cowling with Kinsei 62 engine installed.
・Same spinner as D4Y3.

79.thumb.JPG.85d1e10affccf5d6ca5e14634b3

_20180217_172843.thumb.JPG.6998d4df2e47d

20171126210046_004.jpg.cc79062ab113f9827

_20180217_180628.thumb.JPG.c74508cebe5a2

img20180217_172319.thumb.png.61dde4acfa2

82.thumb.jpg.2b35af1d8f4d5d3d07592a9d183

 

<Fuel tank arrangement>

img20180218_090105.thumb.png.ab149f4745e

 

<Bulletproof glass and head rest installation requirement>

_20180113_081755.thumb.JPG.5a5a117d0fe61

_20180113_081843.thumb.JPG.ea912d412786c

J4owkBX.jpg

jqGZngP.jpg

 

<Changes of cockpit>

img20180218_090744.thumb.png.11c818443d4

img20180218_090805.thumb.png.10fa6d36463

img20180218_090835.thumb.png.c9706163cda

 

<Change of seat>

_20180217_130646.thumb.JPG.4b6cd24aed17b

 

<Changing the sighting device>

_20180217_082017.thumb.JPG.263d70128a8b8

_20180218_091732.thumb.JPG.83a84c5abef63

 

<Changes of wing>

_20180217_073352.thumb.JPG.5db986fa0ddb4

SKk0HHN.jpg

 

<Machine gun related>

_20180217_081805.thumb.JPG.cec3bcadca497

_20180217_081834.thumb.JPG.8ff24ce513781

JRIb2Ir.jpg

YBhhDdl.jpg

pjYN2K7.jpg

 

 

<bombs related>

_20180217_081906.thumb.JPG.2422cf967ab4d

 

<132.3 lb (60kg) bombs and 66.1 lb (30 kg) bombs>

_20180217_125952.thumb.JPG.27440bd19373a

Al6LAi9.jpg

 

<Special 551.2lb (250 kg) bomb suspension system>

_20180220_172244.thumb.JPG.54b67c6d76b94

 

<1,102.3 (500 kg) bombs>

_20180217_125828.thumb.JPG.cc8a76646c4c6

 

<Bombs installation requirements>

_20180217_130050.thumb.JPG.8b31e12f9b557

6VzMqfA.jpg

 

<Bombs shake bracket withdrawal requirements>

_20180217_130117.thumb.JPG.fb6e2f9330845

 

<Rockets related>

_20180217_130225.thumb.JPG.6e9a0f415d6e8

_20180217_130727.thumb.JPG.46b5eb857b327

 

<Rocket installation instructions>

img20180218_093852.thumb.png.52b4082ba9f

71evV3k.jpg

 

<New drop tank>

_20180217_130849.thumb.JPG.d9c5dab644d7f

eDyj19r.jpg

 

<Bulletproof fuel tank>

_20180217_130801.thumb.JPG.93b9b4d333df7

hYBMkjb.jpg

 

<New cowling>

_20180217_130909.thumb.JPG.aed86931ef5f3

20171127212150_004.thumb.jpg.f5380db41ad

 

<Cross section of the new cowling>

_20180217_133925.thumb.JPG.20f501f8fb1a0

 

<Detailed drawing of the exhaust pipe>

_20180217_131105.thumb.JPG.1dfecca3d0bd9

 

<Water Methanol injection>

Mqw8iLd.jpg

JxElAyo.jpg

 

<Change of oxygen inhaler>

7896oa8.jpg

 

 

Difference between "Model 54" and "Model 64"

↓Because there are too many materials, it was stored↓

Spoiler

 

DifferencebetweenModel54andModel64-20180226-0730.png

"Model 64" remodeled to increase Never exceed speed, but it is not done with "Model 54".

 ・Increase the thickness before and after the horizontal stabilizer from 1.4 to 1.6

 ・The bolts to be coupled with the body of the tailplate were made steel plate, and the bolts whose radius were 10φ and 12φ were changed to 12φ and 14φ.

 ・Since wrinkles occur at the time of induction, the thickness of the outer plate on the side of the seat increased from 0.5 to 0.8.

 ・Increase the thickness of the lower outer plate between the trunk partition walls 5 - 7 from 0.5 to 0.6 and 0.8.

 ・Increase the outer thickness of the central longitudinal material of the lower surface between the fuselage partition walls 5 and 7 from 0.8 to 1.2.

 ・Increase the outer thickness of the central longitudinal material of the lower surface between the fuselage partitions 7 to 13 from 0.8 to 1.0.

 ・The material and size of the horizontal stabilizer girder tube of the fuselage partition walls 13 and 15 were changed, and the thickness of the partition wall was changed from 0.8 to 1.0.

 ・In order to increase the strength against the tail wheel load during accretion, the partition wall 16 is reinforced.

 ・Reinforce the wall thickness of the shaft of the main leg rotating shaft from 6.5 mm to 8 mm.

 ・Change the material of the tail wheel groove from "501" to "504", increase the thickness of the aircraft side and oreo mounting ear, and make the thickness of the body part 4 mm to 5 mm.

 

・"Model 54" has instruments showing Never exceed speed, but not in "Model 64".

a6m7a.thumb.jpg.4d0bf6633919440036ab3176

20171126210046_004.thumb.jpg.f4308ff7e0f

 

・"Model 64" is newly equipped with ballistic tank inside the fuselage, with an immediate release valve but not in "Model 54".

20171127205633_001.thumb.jpg.eafb97dc759

img20180217_172319.png.927aab56319159cd4

 

・"Model 64" can bomb 551.2 lb (250 kg), but "Model 54" can not.

(However, "Model 54" can also be installed if "a special 250 kg bomb suspension system" is installed)

75.thumb.JPG.3f415eeb29dce17b9fffcb78c07

 

And above all, "Model 64" was not manufactured, but "Model 54" had two machines!

 

 

 

Primary Source

『海軍試作機性能要目一覧表』(第一技術厰飛行機部・1945.8)

『昭和二十年度上半期飛行機生産要求変更ニ関スル件照会』(1945.3.24)

『集成取扱説明書』

『零式艦上戦闘機取扱説明書』

『爆弾取付要項』

 

Second Source

『零式艦上戦闘機 (2) (〈歴史群像〉太平洋戦史シリーズ (33))』(学研・2001.9.1)

『日本海軍零式艦上戦闘機―名機〈ゼロ戦〉を徹底分析する (Graphic Action Series 世界の傑作機別冊)』(文林堂・2008.8.1)

『スペシャリスト3人が解析する零戦と栄発動機 (エイムック 3162)』(エイ出版社・2015.7.21)

「局地戦闘機紫電改 - 海軍航空の終端を飾った傑作機の生涯(歴史群像>太平洋戦史シリーズ(24))」(学研・2000.1.1)

「ミリタリーエアクラフト」(デルタ出版・1997.3.1)

世界の傑作機 No.56 零式艦上戦闘機22ー63型 (世界の傑作機 NO. 56)』(文林堂・1998.8.1)

『零戦六二型のすべて』(光人社・2005.7.1)

零式艦上戦闘機―永遠の名戦闘機ゼロファイターの全貌』(潮書房光人社・2013.10.1)

零式艦上戦闘機 (〈歴史群像〉太平洋戦史シリーズ (12))』(学研・1996.9.1)

『決定版 零式艦上戦闘機 (歴史群像 太平洋戦史スペシャル Vol. 2)』(学習研究社・2009.11.14)

 

 

Edited by Tarepai
Added details about prototype
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I'll support this 100%.  True, the A6Ms get a bit long in the tooth by higher tiers, but the option to carry ordinance would give it the versatility to function as a fighter-bomber and allow it a place besides the likes of the N1Ks and Ki-84s.

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+1 great work on the research

 

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2 hours ago, Lineins said:

I really want it!!

By the way, have there any big differences between Model 54 and Model 64?
Production model should be called model 54 and mass production type was named model 64 ...
There are memories like there was not a big difference there.

Since "Model 54" has been remodeled from the old aircraft (A6M5c), there are no additional fuel tanks implemented in A6M6 and A6M7, bomb equipment or aircraft reinforcement. The difference between "Model 5X" and "Model 6X" is the amount of bombs loaded and the strength of the aircraft's body. For example, "Model 62" is a refurbishment of bomb loading and body enhancement in "Model 52".

Edited by Tarepai
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3 hours ago, Lineins said:

I really want it!!

By the way, have there any big differences between Model 54 and Model 64?
Production model should be called model 54 and mass production type was named model 64 ...
There are memories like there was not a big difference there.

 

1 hour ago, Tarepai said:

Since "Model 54" has been remodeled from the old aircraft (A6M5c), there are no additional fuel tanks implemented in A6M6 and A6M7, bomb equipment or aircraft reinforcement. The difference between "Model 5X" and "Model 6X" is the amount of bombs loaded and the strength of the aircraft's body. For example, "Model 62" is a refurbishment of bomb loading and body enhancement in "Model 52".

 

To put it another way, it's the same kind of difference as the main one between the initial production batch of A6M5s and later ones.  The initial A6M5 Model 52s were retrofitted A6M3 Model 22 Kos, whereas later variants were all new...although some sources I've come across claim that the Model 64 would've used the A6M7 as a basis.  Accurate nformation on late-war Japanese stuff is pretty hard to come by, as translation errors were pretty common back when original documents were translated and have persisted to this day (the most well-known example being referring to the 'toko' mission profile as 'kamikaze'), and the original documents, if they still exist (and they might not, as a lot of stuff was burned to prevent capture, or simply destroyed by bombing raids), are probably buried in some archive in Japan.

Edited by Z3r0_
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1 hour ago, Z3r0_ said:

 

 

To put it another way, it's the same kind of difference as the main one between the initial production batch of A6M5s and later ones.  The initial A6M5 Model 52s were retrofitted A6M3 Model 22 Kos, whereas later variants were all new...although some sources I've come across claim that the Model 64 would've used the A6M7 as a basis.  Accurate nformation on late-war Japanese stuff is pretty hard to come by, as translation errors were pretty common back when original documents were translated and have persisted to this day (the most well-known example being referring to the 'toko' mission profile as 'kamikaze'), and the original documents, if they still exist (and they might not, as a lot of stuff was burned to prevent capture, or simply destroyed by bombing raids), are probably buried in some archive in Japan.

In the data I found, there is a table showing the difference within each type for each serial number. I will try to show it tomorrow. According to it, "Model 54" was a remodeling of A6M5c, but no change of A6M7 was included.

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Difference between "Model 54" and "Model 64"

"Model 64" remodeled to increase Never exceed speed, but it is not done with "Model 54".

 ・Increase the thickness before and after the horizontal stabilizer from 1.4 to 1.6

 ・The bolts to be coupled with the body of the tailplate were made steel plate, and the bolts whose radius were 10φ and 12φ were changed to 12φ and 14φ.

 ・Since wrinkles occur at the time of induction, the thickness of the outer plate on the side of the seat increased from 0.5 to 0.8.

 ・Increase the thickness of the lower outer plate between the trunk partition walls 5 - 7 from 0.5 to 0.6 and 0.8.

 ・Increase the outer thickness of the central longitudinal material of the lower surface between the fuselage partition walls 5 and 7 from 0.8 to 1.2.

 ・Increase the outer thickness of the central longitudinal material of the lower surface between the fuselage partitions 7 to 13 from 0.8 to 1.0.

 ・The material and size of the horizontal stabilizer girder tube of the fuselage partition walls 13 and 15 were changed, and the thickness of the partition wall was changed from 0.8 to 1.0.

 ・In order to increase the strength against the tail wheel load during accretion, the partition wall 16 is reinforced.

 ・Reinforce the wall thickness of the shaft of the main leg rotating shaft from 6.5 mm to 8 mm.

 ・Change the material of the tail wheel groove from "501" to "504", increase the thickness of the aircraft side and oreo mounting ear, and make the thickness of the body part 4 mm to 5 mm.

 

・"Model 64" has a Never exceed speed in the instrument, but not in "Model 54".

a6m7a.thumb.jpg.4d0bf6633919440036ab3176

20171126210046_004.thumb.jpg.f4308ff7e0f

 

・"Model 64" is newly equipped with ballistic tank inside the fuselage, with an immediate release valve but not in "Model 54".

20171127205633_001.thumb.jpg.eafb97dc759

img20180217_172319.png.927aab56319159cd4

 

・"Model 64" can bomb 551.2 lb (250 kg), but "Model 54" can not.

75.thumb.JPG.3f415eeb29dce17b9fffcb78c07

 

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8 hours ago, Tarepai said:

Since "Model 54" has been remodeled from the old aircraft (A6M5c), there are no additional fuel tanks implemented in A6M6 and A6M7, bomb equipment or aircraft reinforcement. The difference between "Model 5X" and "Model 6X" is the amount of bombs loaded and the strength of the aircraft's body. For example, "Model 62" is a refurbishment of bomb loading and body enhancement in "Model 52".

Strictly speaking, recognition for that A6M7 model 62 is incorrect.
Model 62 is closer to model 63 's downgrading rather than being remodeled from model 52 c in the development line.

 

Spoiler

Model 63 was an aircraft developed from model 53.
Similarly, the engine was using Sakae model 31 equipped with water methanol injection.
However, due to development delay of Sakae model 31, A6M6 (model 53) temporarily ceased development, A6M7 model 63 was not mass-produced.
Instead, Sakae model 31a and Sakae model 31b which abolished water methanol injection from Sakae model 31 were developed suddenly, and model 63 equipped with this was the so-called model 62.
Incidentally, Sakae models 31a and b, which are the engines of this model 62, have been judged to have almost the same performance as Sakae model 21 for a long time I have found that the performance is different in recent research.
According to the article in October 2017 of the military magazine "Maru" published by Tide Shobo Publishing Company, we found that the Sakae model 31a gained more stable high altitude performance than the Sakae model 21.

 

 

And regarding bombs, it is quite confusing due to the operation of the Imperial Japanese Navy site.

In conclusion most Aircraft after A6M5 can equip 500 kg bomb.

 

Spoiler

 

Originally the zero fight had a payload of  nearly 700 kg.
This payload was of great use when equipping a huge fuel tank.
But for a long time the Japanese army did not equip the zero battle with very light bombs of two 60 kg bombs.
IJN had set a policy so that it could be installed on the aircraft by human power by a few people on site without using a special machine.
However, as the bomber D3A gradually became obsolete, the upper part of the IJN decided in 1944 that it should have 250 kg bomb in the zero battle.
In the test by The 3rd Carrier Division in April 1944, IJN concluded that 250 kg bombs can be operated on A6M2 model 21.
At the Battle of the Philippine Sea (Battle of Marianas) in June, the A6M2 belonging to The First Carrier Division was equipped with a 250 kg bomb and a 200 liter fuel tank.

 

It is good until here, but the troublesome thing is from here.
In October 1944, Takijirō Ōnishi, one of the upper IJN members, instructs us to use the zero battle for Kamikaze attack.
In the spring of 1945, according to this instruction, the A6M2 and A6M3 could be equipped with 250kg bomb, and the Zero Battle after A6M5 was modified to equip two 150kl fuel tanks and equipped with a 500k bomb.
The bomb is dropped with the hook disconnected through the wire by manual operation from the cockpit.
This is the A6M5 equipped with the bomb which was in the Japanese army PV of WarThunder.

Although there seemed to be some fuselage which received a remodeling remodeling which can not separate the bomb inside ...
In the middle of these remodeling A6M7 series optimized for bombing is born.

 

 

As it was assumed that the A6M8 model 54 could equip a bomb, it could be equipped with 500 kg bomb too.

Edited by Lineins
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4 hours ago, Tarepai said:

Difference between "Model 54" and "Model 64"

"Model 64" remodeled to increase Never exceed speed, but it is not done with "Model 54".

 ・Increase the thickness before and after the horizontal stabilizer from 1.4 to 1.6

 ・The bolts to be coupled with the body of the tailplate were made steel plate, and the bolts whose radius were 10φ and 12φ were changed to 12φ and 14φ.

 ・Since wrinkles occur at the time of induction, the thickness of the outer plate on the side of the seat increased from 0.5 to 0.8.

 ・Increase the thickness of the lower outer plate between the trunk partition walls 5 - 7 from 0.5 to 0.6 and 0.8.

 ・Increase the outer thickness of the central longitudinal material of the lower surface between the fuselage partition walls 5 and 7 from 0.8 to 1.2.

 ・Increase the outer thickness of the central longitudinal material of the lower surface between the fuselage partitions 7 to 13 from 0.8 to 1.0.

 ・The material and size of the horizontal stabilizer girder tube of the fuselage partition walls 13 and 15 were changed, and the thickness of the partition wall was changed from 0.8 to 1.0.

 ・In order to increase the strength against the tail wheel load during accretion, the partition wall 16 is reinforced.

 ・Reinforce the wall thickness of the shaft of the main leg rotating shaft from 6.5 mm to 8 mm.

 ・Change the material of the tail wheel groove from "501" to "504", increase the thickness of the aircraft side and oreo mounting ear, and make the thickness of the body part 4 mm to 5 mm.

 

・"Model 64" has a Never exceed speed in the instrument, but not in "Model 54".

a6m7a.thumb.jpg.4d0bf6633919440036ab3176

20171126210046_004.thumb.jpg.f4308ff7e0f

 

・"Model 64" is newly equipped with ballistic tank inside the fuselage, with an immediate release valve but not in "Model 54".

20171127205633_001.thumb.jpg.eafb97dc759

img20180217_172319.png.927aab56319159cd4

 

・"Model 64" can bomb 551.2 lb (250 kg), but "Model 54" can not.75.thumb.JPG.3f415eeb29dce17b9fffcb78c07

 

 

I have learned for the first time that there is such a difference between models 54 and 64 ...

Thank you.

Edited by Lineins
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4 hours ago, Lineins said:

Strictly speaking, recognition for that A6M7 model 62 is incorrect.
Model 62 is closer to model 63 's downgrading rather than being remodeled from model 52 c in the development line.

 

  Reveal hidden contents

Model 63 was an aircraft developed from model 53.
Similarly, the engine was using Sakae model 31 equipped with water methanol injection.
However, due to development delay of Sakae model 31, A6M6 (model 53) temporarily ceased development, A6M7 model 63 was not mass-produced.
Instead, Sakae model 31a and Sakae model 31b which abolished water methanol injection from Sakae model 31 were developed suddenly, and model 63 equipped with this was the so-called model 62.
Incidentally, Sakae models 31a and b, which are the engines of this model 62, have been judged to have almost the same performance as Sakae model 21 for a long time I have found that the performance is different in recent research.
According to the article in October 2017 of the military magazine "Maru" published by Tide Shobo Publishing Company, we found that the Sakae model 31a gained more stable high altitude performance than the Sakae model 21.

 

 

And regarding bombs, it is quite confusing due to the operation of the Imperial Japanese Navy site.

In conclusion most Aircraft after A6M5 can equip 500 kg bomb.

 

  Reveal hidden contents

 

Originally the zero fight had a payload of  nearly 700 kg.
This payload was of great use when equipping a huge fuel tank.
But for a long time the Japanese army did not equip the zero battle with very light bombs of two 60 kg bombs.
IJN had set a policy so that it could be installed on the aircraft by human power by a few people on site without using a special machine.
However, as the bomber D3A gradually became obsolete, the upper part of the IJN decided in 1944 that it should have 250 kg bomb in the zero battle.
In the test by The 3rd Carrier Division in April 1944, IJN concluded that 250 kg bombs can be operated on A6M2 model 21.
At the Battle of the Philippine Sea (Battle of Marianas) in June, the A6M2 belonging to The First Carrier Division was equipped with a 250 kg bomb and a 200 liter fuel tank.

 

It is good until here, but the troublesome thing is from here.
In October 1944, Takijirō Ōnishi, one of the upper IJN members, instructs us to use the zero battle for Kamikaze attack.
In the spring of 1945, according to this instruction, the A6M2 and A6M3 could be equipped with 250kg bomb, and the Zero Battle after A6M5 was modified to equip two 150kl fuel tanks and equipped with a 500k bomb.
The bomb is dropped with the hook disconnected through the wire by manual operation from the cockpit.
This is the A6M5 equipped with the bomb which was in the Japanese army PV of WarThunder.

Although there seemed to be some fuselage which received a remodeling remodeling which can not separate the bomb inside ...
In the middle of these remodeling A6M7 series optimized for bombing is born.

 

 

As it was assumed that the A6M8 model 54 could equip a bomb, it could be equipped with 500 kg bomb too.

Initially, the 500 kg bomb that the A6M8 can carry is for Kamikaze, only using the suspension of Drop tank. It was a slight exception as it forcedly installed a 500 kg bomb on the fuselage, and it was not used at all except for Kamikaze. Because, at most, "Model 54" is only designed with 60 kg × 4, "Model 64" is designed considering only loading 250 kg × 1. By the way, if "Model 54" installed a temporary suspension system as in the picture below, we could set 250 kg bomb for once.  However, it should be considered that "Model 54" has not been strengthened the body like "Model 64", and it was rarely used except for Kamikaze. In short, "Model 54" can only carry 250 kg bombs and 500 kg bombs by using a temporary suspension system. I removed 250 kg bombs from the "Performance" section with reference to your opinion.

 

<"Model 54" 551.2 lb (250 kg) bomb "special" suspension system.>

img20180220_065536.thumb.png.87955197d4d

However, this is also quite different from that of "Model 64"

img20180220_071400.thumb.png.d31c6066bac

Edited by Tarepai
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7 hours ago, Tarepai said:

Initially, the 500 kg bomb that the A6M8 can carry is for Kamikaze, only using the suspension of Drop tank. It was a slight exception as it forcedly installed a 500 kg bomb on the fuselage, and it was not used at all except for Kamikaze. Because, at most, "Model 54" is only designed with 60 kg × 4, "Model 64" is designed considering only loading 250 kg × 1. By the way, if "Model 54" installed a temporary suspension system as in the picture below, we could set 250 kg bomb for once.  However, it should be considered that "Model 54" has not been strengthened the body like "Model 64", and it was rarely used except for Kamikaze. In short, "Model 54" can only carry 250 kg bombs and 500 kg bombs by using a temporary suspension system. I removed 250 kg bombs from the "Performance" section with reference to your opinion.

 

<"Model 54" 551.2 lb (250 kg) bomb "special" suspension system.>

img20180220_065536.thumb.png.87955197d4d

However, this is also quite different from that of "Model 64"

img20180220_071400.thumb.png.d31c6066bac

 

 

Nonetheless, according to the report summarized in March 1943 when a test with a bomb on the Zero Warfare was conducted since October 1942:
- Zero battle is impossible at 45 ° Dive bombing, but there is no problem if it is Shallow dive bombing.
- If the load generated when the aircraft is drawn down is about 6 G, there is no problem with the body strength.
The conclusion has come out.
In the Solomon Islands campaign in 1943, The 582nd Navy Air Corps belonging to The 2nd Air Corps from July to December repeated Shallow Dive Bombing using the zero battle.
According to the record of pilot of The 582nd Navy Air Corps:
- If the speed exceeds 555 km / h, it will not be possible even if the nose is raised and wanted to descend.
- There was no problem in operation if the falling angle of the aircraft was within 30 °.
.

In historical fact it was more problematic that the aircraft was lifted more than the problem of airframe strength at Dive bombing.
So I thought that I could operate a 250 kg bomb on Model 54 as well.
Since most of the materials in Japan deal with Model 54 and Model 64 as the same thing, I could not distinguish between the two.

And since it starts production with Model 64 in July 1945, there are some records that it was not completed by August 1945.
In your article, it is written that Model 64 has been tested once equipped with 250 kg bomb.
I think that this is model 54.

Edited by Lineins
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1 hour ago, Lineins said:

 

Nonetheless, according to the report summarized in March 1943 when a test with a bomb on the Zero Warfare was conducted since October 1942:
- Zero battle is impossible at 45 ° Dive bombing, but there is no problem if it is Shallow dive bombing.
- If the load generated when the aircraft is drawn down is about 6 G, there is no problem with the body strength.
The conclusion has come out.
In the Solomon Islands campaign in 1943, The 582nd Navy Air Corps belonging to The 2nd Air Corps from July to December repeated Shallow Dive Bombing using the zero battle.
According to the record of pilot of The 582nd Navy Air Corps:
- If the speed exceeds 555 km / h, it will not be possible even if the nose is raised and wanted to descend.
- There was no problem in operation if the falling angle of the aircraft was within 30 °.
.

In historical fact it was more problematic that the aircraft was lifted more than the problem of airframe strength at Dive bombing.
So I thought that I could operate a 250 kg bomb on Model 54 as well.
Since most of the materials in Japan deal with Model 54 and Model 64 as the same thing, I could not distinguish between the two.

And since it starts production with Model 64 in July 1945, there are some records that it was not completed by August 1945.
In your article, it is written that Model 64 has been tested once equipped with 250 kg bomb.
I think that this is model 54.

Well, English does not work well. "Model 54" can also carry 250 kg bomb. However, my research found that the installation method was slightly different. The point is that there is no suspension on the aircraft itself, just "remodeling" to attach a new suspension to the body. This is different from "Model 64" where 250 kg bomb suspension is installed from the beginning. However, this can be said to other A6Ms. It seems that A6M2 to A6M5 could also install 250 kg bombs if a special bomb suspension was installed. In addition, A6M5c and beyond, we were able to install a 500 kg bomb. But now War Thunder can not even mount a 250 kg bomb. I do not know what kind of criteria Gaijin is setting a bomb loading amount, but as other A6Ms can not load 250 kg bombs, I think that should not allow 250 kg bombs to be loaded in "Model 54" in the game . However, with regard to the 500 kg bomb, there is room for consideration. With A6M5c or later, it was possible to load 500 kg bombs without using any special remodeling by using a Drop tank suspension system. This point is greatly different from the case of 250 kg where new bomb suspension needs to be installed.

Edited by Tarepai
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1 hour ago, Tarepai said:

 

Well, English does not work well. "Model 54" can also carry 250 kg bomb. However, my research found that the installation method was slightly different. The point is that there is no suspension on the aircraft itself, just "remodeling" to attach a new suspension to the body. This is different from "Model 64" where 250 kg bomb suspension is installed from the beginning. However, this can be said to other A6Ms. It seems that A6M2 to A6M5 could also install 250 kg bombs if a special bomb suspension was installed. In addition, A6M5c and beyond, we were able to install a 500 kg bomb. But now War Thunder can not even mount a 250 kg bomb. I do not know what kind of criteria Gaijin is setting a bomb loading amount, but as other A6Ms can not load 250 kg bombs, I think that should not allow 250 kg bombs to be loaded in "Model 54" in the game . However, with regard to the 500 kg bomb, there is room for consideration. With A6M5c or later, it was possible to load 500 kg bombs without using any special remodeling by using a Drop tank suspension system. This point is greatly different from the case of 250 kg where new bomb suspension needs to be installed.

 

Regarding that point, I guess that Gaijin did not equip it because of game balance or modeling being old.

Even if a model equipped with 500 kg bomb on A6M5 also exists in a single mission, users can not use it in normal battle.

I think that Gaijin did not implement it for reasons other than historical facts.
A similar story is occurring not only in A6M but also in other aircraft, for example F - 82 and Firebrand TF can not equip the historically loaded maximum weight bombs and rockets.
That topic has been discussed in other topics.

As it turns out, it is the work of a foreigner to judge whether to actually equip it.

 

 

Edited by Lineins
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2 hours ago, Lineins said:

 

Regarding that point, I guess that Gaijin did not equip it because of game balance or modeling being old.
A similar story is occurring not only in A6M but also in other aircraft, for example F - 82 and Firebrand TF can not equip the historically loaded maximum weight bombs and rockets.
That topic has been discussed in other topics.

It is the work of a foreigner to judge whether to actually equip it.

 

 

Regarding the matter of 250 kg bombs, I rewrite that if you modify A6M to install a 250 kg bomb suspension, you can install it. Later I will leave decision to Gaijin. Thank you for a good opinion.

Edited by Tarepai
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