O-I: Japan's Super Heavy Tank

[wotertool 5,062]

 

 The multi-turreted 150-ton tank was designed for use on the Manchurian plains as a supportive pillbox for the Imperial Japanese against the Soviet Union. The project was disbanded four years after the initial development began, deemed unsatisfactory for continuation in 1943 after the lack of resource material for the prototype.

 

 

 

Are you guys done soon about your Island Hopping?

 

Please don't further go offtopic with the current Sherman and US Landing Tactics vs Japan discussion.

[LORDOFKASE 100]

I'll just leave it at that it was an amazingly stupid idea, and the Japanese rightly abandoned it, and anything else is second guessing folks who were actually in the position to have to build/deploy/operate it.  

[Italianplayer 1,666]

Whatevere, If it was in Manciura was worse. Russian like heavy artillery, plus tons of Il-2

[hatorihina 1,394]

Okay was this tank actually build or not? I just see biig tracks at the first page and datasheets.

Because it is pretty much just like the Maus in its effective fighting-power, and the Maus seems to rock ingame..

[Priest5000 1,049]

Okay was this tank actually build or not? I just see biig tracks at the first page and datasheets.

Because it is pretty much just like the Maus in its effective fighting-power, and the Maus seems to rock ingame..

Yes, it was built and tested. 

Only comparable to the Maus in terms of size and maneuverability. The main armament would have been a 15cm cannon, which wouldn't have performed as well as the 12.8cm cannon on the Maus. But ohhh boy, the 15cm HE, APHE, and HEAT shells will be great at Derping :3 

Edited May 27, 2016 by Priest5000

[hatorihina 1,394]

In that case...I want it. This tank and the whole tree!
I love silly superheavy tanks.
Espicifically with two or more turrets :)

[KontaKT 1,824]

I've never followed the sources, but I discovered some things with the one from Fine Molds !

 

Quote

The date on which the construction of the tank resumed is unknown

 

"They started working on the project in 1941/4/14, the chassis was completed in 1942/2/8 "

 

Also :

"The tank did exist, but like the E-100, the prototype was never fitted with a turret."

And :

"The testing grounds were in Sagamihara, which is west of Tokyo. O-I was not tested in Manchuria as some have suggested. "

 

No one have told me that.

So to sum up, the prorotype was tested but never received a turret. Exact ?

Finally, was it sent to mandchouria to fight or not at all ? I presume not at all as soldiers could have seen it ?

[Mercedes4321 4,695]

19 minutes ago, Fighter117 said:

I've never followed the sources, but I discovered some things with the one from Fine Molds !

 

 

"They started working on the project in 1941/4/14, the chassis was completed in 1942/2/8 "

 

Also :

"The tank did exist, but like the E-100, the prototype was never fitted with a turret."

And :

"The testing grounds were in Sagamihara, which is west of Tokyo. O-I was not tested in Manchuria as some have suggested. "

 

No one have told me that.

So to sum up, the prorotype was tested but never received a turret. Exact ?

Finally, was it sent to mandchouria to fight or not at all ? I presume not at all as soldiers could have seen it ?

It never received the main turret. I'm pretty sure the mini turrets were fitted. 

 

It was not sent to Manchuria.

[KontaKT 1,824]

1 hour ago, Mercedes4321 said:

It never received the main turret. I'm pretty sure the mini turrets were fitted. 

 

It was not sent to Manchuria.

 

Thanks !

That makes more sense.

I though O-I believers tough it was sent to Mandchuria.

 

So to recap.

I believe in the only built O-I, so it didn't receive the main turret and was never sent to Mandchuria. Are you sure another project wasn't planned ?

[Mai_Waffentrager 9,657]

The main turret was installed but taken out due to the missing roof preventing testing unless uninstalled.

[KontaKT 1,824]

1 hour ago, Mai_Waffentrager said:

The main turret was installed but taken out due to the missing roof preventing testing unless uninstalled.

 

Ok.

[KontaKT 1,824]

One more question :

Is it known the prototype was built in real steel or was it built in wood ?

Because this sentence isn't that clear :

 

"Russian reports claim the Japanese were in possession of a wooden O-I mock-up mounting a Daimler-Benz DB 601A engine in 1945, however other sources point to the scrapping of the remaining parts of the same year. "

 

Thanks !

[Mai_Waffentrager 9,657]

The prototype was built in steel, obviously.

 

The wooden mockup had a different engine than originally designed.

[MH4UAstragon 9,574]

This tank would be comparable in BR to the 76 Shermans, Fireflies, and others at that tier. 

 

I foresee it being balanced at a 5.3 BR due to the armor not really being able to handle anything more. It should be tiered as such that enemies have to flank it to kill it or use very specialized AT guns on it frontally (Dicker Max, Nashorn, SU-152, various British stuff or American stuff).

 

Also I can potentially see team composition as GER+japan+RUS vs US+UK, maybe moving Russia to Allied on some battles. Russians wouldn't be able to do xxxx to it frontally without CRAPCR (they would know true pain for once, lol), same with US 76mm. Brits would primarily be the ones killing it at range frontally if it didn't oneshot them first and hide to reload.

 

 

[hatorihina 1,394]

7 minutes ago, MH4UAstragon said:

This tank would be comparable in BR to the 76 Shermans, Fireflies, and others at that tier. 

 

I foresee it being balanced at a 5.3 BR due to the armor not really being able to handle anything more. It should be tiered as such that enemies have to flank it to kill it or use very specialized AT guns on it frontally (Dicker Max, Nashorn, SU-152, various British stuff or American stuff).

 

Also I can potentially see team composition as GER+japan+RUS vs US+UK, maybe moving Russia to Allied on some battles. Russians wouldn't be able to do xxxx to it frontally without CRAPCR (they would know true pain for once, lol), same with US 76mm. Brits would primarily be the ones killing it at range frontally if it didn't oneshot them first and hide to reload.

 

 

Maybe 5.5 would be the best for this vehicle x)
But I have to disagree at the armor terms: 150mm are still doing well at 6.0, look at the Black Prince.

[Orlunu 6,863]

50 minutes ago, hatorihina said:

But I have to disagree at the armor terms: 150mm are still doing well at 6.0, look at the Black Prince.

 

Seconded.  Given the all-around thickness, and particularly if they model the internal armoured divisions, this thing would have a monster DM even at 6.0.

[KontaKT 1,824]

37 minutes ago, Orlunu said:

 

Seconded.  Given the all-around thickness, and particularly if they model the internal armoured divisions, this thing would have a monster DM even at 6.0.

 

If they model the internal armor, it should be modelled for all tanks.

German tanks used quite thick internal armor between all the components. Don't know for the others.

[Orlunu 6,863]

7 minutes ago, Fighter117 said:

If they model the internal armor, it should be modelled for all tanks.

 

Of course.  It's just a question of whether they'll actually go to the effort at some point in future or not.

[arczer25 5,202]

3 minutes ago, Orlunu said:

 

Of course.  It's just a question of whether they'll actually go to the effort at some point in future or not.

tiger 1 had 30mm bulkhead between engine and combat compartment but for some reason they removed it.

[Admiral_Aruon 2,260]

i love monster tanks like these. they're just so ridiculous that it's hard not too like them.

 

so this beast's codename was Mi-To? hmmm. sounds better than O-I, has some personality.

 

it's like you combine a Maus, Neubaufahrzeug, KV-2, and the british infantry tank concept and spit out a tank landship.

[Phantaboulous 43]

There are no prototypes built for this machine, even the sources of the blueprints are sketchy. I really doubt that the O-I Superheavy tank line will be added.

[hatorihina 1,394]

15 minutes ago, Phantaboulous said:

There are no prototypes built for this machine, even the sources of the blueprints are sketchy. I really doubt that the O-I Superheavy tank line will be added.

[fufubear 6,705]

52 minutes ago, Phantaboulous said:

There are no prototypes built for this machine, even the sources of the blueprints are sketchy. I really doubt that the O-I Superheavy tank line will be added.

It's like you didn't even read the thread

[Admiral_Aruon 2,260]

hey since there were technically two versions of the O-I (the Mi-To paper tank with the 15cm cannon and the constructed O-I prototype missing it) would it be worth having both ingame?

[Querulous1 3,276]

Personally I hope they find Sekrit documents that enable them to introduce a whole heavy line of OI versions.