Japan's phantom multi-turret heavy tank Oi vehicle

Since we know it has an mv of 1640ft/s (500m/s), and we know from aizenn’s suggestion that it’s a 35.88kg projectile with a 2.510 kg bursting charge, we get the following penetration performance:

https://web.archive.org/web/20121224010430/https://usacac.army.mil/cac2/cgsc/carl/wwIIspec/number34.pdf

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gaijin-please-t-100z-a-multi-turreted-tank-with-a-kv-2-gun-v0-h2y2kxv7yrv91.jpg.726b7068f4696d12f7ed8c5a8a09fb06

I wanted to see him in the game 😈

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Type 96 15cm didn’t have a HEAT shell?

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I have only read that the 4th year 15cm howitzer had a HEAT shell. However, while TM-1985-5 lacks any mention of it directly, it also states that howitzer projectiles appear to be interchangeable within themselves (but not with the guns). On that condition, if one can find the 4th year 15cm HEAT, they could probably infer specifications, although fired at a higher velocity and consequently spinning faster, it would likely perform worse out of the Type 96.

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I found a manual that speculated that the Model 4’s rounds could be used in the Type 96 howitzers as the above post said. These are the stats the manual provided for the Type 92 HE-round.
Type 92 HE pic
Type 92 HE stats
Charge weight in kilograms: 7.3 kg, TNT.

There’s also a smoke round, but those are always defaulted in the game to the same type so the stats wouldn’t matter. But it has it.

Source: https://www.paperlessarchives.com/FreeTitles/CatalogOfEnemyOrdnanceMateriel.pdf (.pdf page 216)
I’m still looking for another source that might hold some mention of the HEAT round. But so far a HE-round with 7.3 kg of TNT is going to turn most vehicles to dust with a decent hit. So it will be quite useful either way me thinks.

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No luck with the HEAT round. But I did find two 150mm APHE rounds that are compatible with the Type 96 Howitzer.

15-cm Armor-Piercing High-Explosive Projectile
Projectile Weight (filled): 44.54 kg
Filler Weight: 5.2 kg
Filler Type: Picric Acid (x1.1 TNTe)
Fuze: Type 88, base fuze.
Source: TM 9-1985-5; 15-cm (150-mm) Armor-Piercing High-Explosive Projectile
In-Game Penetration (with 540 m/s muzzle velocity): 107.20 mm

Type 95 15-cm Armor-Piercing High-Explosive Projectile
Projectile Weight (filled): 36.1 kg
Filler Weight: 2.3 kg
Filler Type: TNT
Fuze: Type 95, base fuze.
Source: TM 9-1985-5; Type 95 15-cm (150-mm) Armor-Piercing High-Explosive Projectile
In-Game Penetration (with 540 m/s muzzle velocity): 92.35 mm

Not the strongest but it looks like it can outgun the KV-2 in both penetration and overpressure, which is quite impressive!

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The Japanese claim that the Type 96 howitzer shells could penetrate up to 180 mm of armor. And after the war, during tests, the Americans proved that the Type 1 bullet penetrated 101 mm of armor at a distance of 1000 yards.

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You also have to remember that War Thunder is a game and they can do anything to keep the balance

It should be! I used gaijin’s own penetration calculator :)

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I did some research on the OI tank a while ago and I can send you some links about it

https://combat1.sakura.ne.jp/OI.htm
https://forum.axishistory.com/viewtopic.php?t=220771

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This is the O-I? Turret shape looks different

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Somewhat unrelated, but I find it quite sad how Japanese companies hoard technical documents. O-I is not the first

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this is an incorrect version that assumes three different versions of OI

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the US citation is ‘Japanese Tank and Antitank Warfare’ from the Military Intelligence Division, War Department, Washington D.C.

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thanks for a more accurate source than Japanese Wikipedia

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Another source with penetration of Type 96. The translation of Japanese table with penetration.

Spoiler


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in the link there is an explanation about fake Japanese super heavy tanks

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Japan doesnt need paper tanks that nobody can barely even confirm is real or not. There are a bunch more tanks that we have identifiable pictures of and are actually real. This wouldnt even bring much needed armor to Japan as it will just be another one of those lightly armored multi turret designs.

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There is plenty of evidence to confirm its existance. The only thing it is missing compared to other vehicles is images, which are irrelevant considering we have blueprints for the 3D model.
There is even a track link left from it, which surely wouldn’t have been made for a tank that never existed.

It would provide 150mm (75+75) of frontal armor and 70mm (35+35) of side armor, I fail to see how that could be considered lightly armored. The comparatively low performance of the 47mm cannons and the low velocity of the 150mm cannon will also help place it at a BR where it can use this armor effectively.

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the track link that is in the Wakajishi temple is sufficient evidence of the existence of the OI tank.Ostwind II exists only on the Czech list of what the Germans left in their country and, as far as I know, there are no photos confirming its existence.I am also adding the Wakajishi Shrine website
http://www.wakajishi.jp/shiryou.html

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