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[ST] 40TP Habicha


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Gnomon #1 Posted Jun 29 2018 - 13:31

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Hey, everyone! 

 

Happy Friday! I’ve got a bit more news on the Polish line for you. 

 

Tier by tier, we’ve been moving down the Polish branch. Next up is the 40TP Habicha (the Tier VI medium tank), which is ready for a round of testing. 

 

 

The 40TP Habicha is a mobile medium tank with a 90mm gun. The gun stands out due to its alpha damage (240 points) and decent rate of fire. However, the targeting parameters are far from ideal: the dispersion of 0.42 prevents efficient sniping, and the targeting time is currently at 2.7 seconds. The tank is relatively fast, so it can quickly accelerate to its maximum speed of 50 kp/h (and sustain it) thanks to a power-to-weight ratio of 17.4 hp per ton.

 

The armor of the 40TP Habicha doesn’t offer a lot of protection from incoming enemy fire (keep in mind, though, that we’re talking about a Tier VI medium). You can compensate for the armor by making use of the its gun depression of -8°, which you can use to hide its frail (and bulky) hull on the back slope of a hill.

 

To sum things up: the 40TP is a mobile medium with above average alpha and below average targeting stats. The armor is far from the best, so you should stick to terrain-based play when you take this fella out into battle. 

 

Screenshots

 

Also, this is the pre-Supertest state of the vehicle. If the tests show the stats need some tuning, we’ll make adjustments.

 

Let us know what you think!

 

See you on the battlefield!



BabA_YA6A #2 Posted Jun 29 2018 - 13:41

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Looks pretty  to me. But no wonder since Poland did not really have nationally produced tanks in the post war era.

Cognitive_Dissonance #3 Posted Jun 29 2018 - 13:41

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Nice looking tank. The Turret looks like a KV1 and a Tiger II kit bash!

Blackhorse_One_ #4 Posted Jun 29 2018 - 13:44

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More of that Soviet-era Czech-Polish MIC cooperation ...

 

Wish you guys would stay away from phoney tanks ... :sceptic:


Edited by Blackhorse_One_, Jun 29 2018 - 14:01.


_Zero___ #5 Posted Jun 29 2018 - 14:28

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View PostBlackhorse_One_, on Jun 29 2018 - 13:44, said:

More of that Soviet-era Czech-Polish MIC cooperation ...

 

Wish you guys would stay away from phoney tanks ... :sceptic:

This game strayed from realism/ historical accuracy long ago. Mainly to keep content coming out which is great. If you don't like it, suck it up and if you really don't then there are games like warthunder for you.



Blackhorse_One_ #6 Posted Jun 29 2018 - 14:30

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View Post_Zero___, on Jun 29 2018 - 08:28, said:

This game strayed from realism/ historical accuracy long ago. Mainly to keep content coming out which is great. If you don't like it, suck it up and if you really don't then there are games like warthunder for you.

 

Yeah, all of life's losers say that ... :sceptic:

 

It seems that all of us have to put-up with something, huh?


Edited by Blackhorse_One_, Jun 29 2018 - 14:47.


YANKEE137 #7 Posted Jun 29 2018 - 15:24

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I think there's more players in Poland than in all of the NA server, so of course they're going to service them.

Blackhorse_One_ #8 Posted Jun 29 2018 - 15:53

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Just rec'd this from a concerned citizen via PM ...

 

Thank you!

 

Readers take note ... DATES associated with this article are rather vague vs the WG render ... 


 

Sent: Today, 09:38 AM

[ST] 40TP Habicha

​Wish you guys would stay away from phoney tanks ...

 

The Origins ... The concept of arming Polish Army with medium tanks appeared first in the mid-twenties of the twentieth century. It was recognized at the time that it should be a vehicle weighing up to 20 tons, fast, and sufficiently armored and armed. However, in the following years, the work on the medium tank wasn't taken forward. There was no opportunity to build one on the basis of foreign tanks designs (at the time appropriate tanks didn't exist, or were kept as top secret projects). Moreover, Poland didn't have experts with sufficient experience and industry capable of producing such a vehicle. Also one of important reasons was the lack of sufficient funds.

 

First Concept ... Once beginning of the production of the TK-S tankette's and the 7TP light tanks, in the mid-thirties of the twentieth century resumed back to the problem of the development of a medium tank. In January 1937, the Committee for Armament and Equipment Ministry of Military Affairs (KSUS) defined guidelines for the concept of a new medium tank. Vehicle weight was to be 16 tons, while the armament was composed of a wz. 1897 cal. 75 mm Schneider cannon and two Hothkiss wz.25 machine guns. Engine type was supposed to be a diesel engine with an output of 320 hp. The general design was to be based on the English tank Vickers A6 "Sixteen tonner": the fighting compartment in front and the engine compartment at the back. There would be a central two-man turret with a 75mm gun and a coaxial machine-gun. In the front of the hull were to be placed two secondary machine-gun turrets, each with a 7.92mm machine gun. Similar to the USSR medium tanks T-28. Preliminary work on the project carried out in the Armored Forces Command have shown that with the assumed thickness of armor and weaponry weight of the tank will be 23-25 tonnes, which exceeds the limit of the expected mass.

 

Medium Tank 25t BS PZInż. "Habich Tank" ... Medium Tanks were planned as a new concept, as it was considered that light vehicles will not work on the contemporary, rapidly changing battlefield. There were three projects designed by KSUS and BBTBr.Panc. but those were only a concepts works with never left engineers desktops, but actually began to order and manufacture some of their parts to solve some certain things by study. 
Eventually it was decided to start construction of a prototype of the design of engineer E.Habich from the Special Bureau of PZInż company. In 1939 started the construction of a wooden mock-up, and the prototype was to be ready a year later. Initially considered various options of armament, including prototype 47 mm anti-tank cannon being constructed by cpt. Wacław Stetkiewicz and prototype anti aircraft gun 50~55 mm. Ultimately it was decided to equip the vehicle with long-barreled Schneider wz.22/24 75mm anti-aircraft cannon. The hull of the tank had to be of lowest possible profile with sloped armor plates, just like the tower, which was to be large but of lowest possible profile.

 

Design ... The work, initiated at the beginning of 1939, were directed by the Head of Special Vehicles Bureau, engineer Edward Habich, who was also the chief engineer of this tank. Habich withdrew from the concept of multi-turreted vehicle. Under his design, hull of the tank has to have lowest possible and wide profile, with slopped front and side armor plates. In the front panel of thickness up to 60mm (side and rear plates have a thickness of 40 mm) was placed universal ball mantle (designed by engineer Napiórkowski) for the hull 7.92mm machine gun (Type C4 - prototype air cooled machine gun) operated by gunner occupying a seat next to the driver. Turret has to be of lowest and wide profile possible, welded from 6 to 8 rolled steel armor plates. On top of the turret were placed one or two hathes for the crew, Gundlah G wz.34 reversible periscopes and Słupski sleves. 
 

The gun mounted in the turret has to be coupled with coaxial machine gun (Type C4 - prototype air cooled machine gun) and both suppose to be placed in a mantle of similar construction to the one from the 7TP. Armament had to supplemented by a third machine gun (again the Type C4 - prototype air cooled machine gun), designed for anti-aircraft defense, placed in mantle of special construction on the commander's hatch. Tank had to have also a strong field radio (N2/C) mounted in rear oriel of turret. The original assumptions of armament were about 40-47 mm caliber cannon: 40mm POM-POM or a prototype 47 mm anti-tank cannon being constructed by cpt. Wacław Stetkiewicz. Then thought about a new anti-aircraft 50-55mm caliber weapon being constructed in Starachowice weapons plant, but very quickly, because in the spring of 1939., engineer Tadeusz Tański involved in the design of the tank, proposed to use as the main armament the French Schneider 75 mm wz.22/24 long-barreled anti-aircraft cannon. 
 

Those guns, purchased by the Polish Navy Command in the amount of 14 pieces, were in armament of the 1st and 2nd Marine Flak squadrons. At that time those were already outdated and not very suitable to provide anti-aircraft defense against modern aircraft's. Due to good ballistic characteristics, it lent itself well to fight the enemy tanks, and their frag-destructive shells had sufficient effectiveness to destroy the typical field fortifications. Tański proposal was approved by Habich who had at same time commission works to adapt this gun to be mounted in tank turret.

 

For the new tank Engine Department of th PZInż., Headed by Eng. Zdzislaw Rytel, designed in collaboration with Eng. Jan Werner, a special V-12 engine in two versions: carburetor gasoline of 300 hp (according to other data had to be 8-cylinder) and direct injection diesel engine of 250 hp. However Until the outbreak of the war, Engine Department of PZInż didn't finish any of those prototypes. Due to the prolonged work on the construction of Polish engine prototype, it was decided to look for another one outside the country. An American La-France engine with was bought for the 10TP seemed to be too weak and faulty and the most appropriate engine was found to be the German Maybach HL108 engine with power of 221 kW (300 hp), with has been already considered into account in 1937, during early development stage of 10TP, It was about 200 kg lighter than a American La France and reached by almost half as much power. However, despite many efforts and attempts to buy the HL108 with semi-automated gear-boxes in Germany... the 10TP had to be driven further with unreliable American La France. The case was so important that it was even an attempt to bring the engine to the Poland through help of Sweden, because the Germans (in 1937) did not agree to sell fewer than 8 ~ 10 engines., with qty. Polish side simply could not afford. However, the most likely to the September of 1939. Maybach buy failed, although some documents say that a new engine has been obtained... After the war In the 60's Leon Czekalski (a officer who did test drive of 10TP) recalled that 10TP was tested with two different engines, and for 2nd one waited for the long time...

 

The chassis of designed tank was similar in construction to the chassis of the LT vz.38 and applied six rubber-tyred wheels of approx. 650~700mm diameter, suspended on individual suspension arms but combined by two with one common spring element, which was flat leaf-spring, the flat leaf-springs were placed on the outside of the hull. The upper branch of the tracks have to be supported also by rubber-tyred wheels but of a much smaller diameter.

 

A single copy of designed tank prototype was ordered (the details of the contract are unknown due to lack of surviving records), which was to be delivered to the test. However until the outbreak of war BS PZInż. was able to make only a wooden mock-up of tank in scale of 1:1.

On the basis of those scanty information, it can be concluded that the modern tank was is design, not outgoing constructions of its potential opponents perhaps even surpassing them. However, it seems weight of the tank was quite significantly underestimated, which at the scheduled armor would exceed 25 or more tons, it was also decided to use too weak engines.​ Engine of 300hp was a minimum to reach land speed of 40kph, better traction parameters could only give a engine of power greater than 400-450hp.

 

Despite years of research, historians could not find any photographs or drawings (with the exception of some elements and the suspension schematic being held secret by Mr. Piotr Zarzycki for purpose of book being written by him), on the basis of which could be done reliable reconstruction of the appearance of this Polish medium tank. 
 

All we have for now are schematics drawn by KRZYCHAL from odkrywca.pl forums and the render of GrumpyStranger. 
Those schematics are made from proportion of human phantoms and known modules planned to used in tank like a: chassis carriage wheels, engine, main gun, auxiliary machine guns, radio etc. 
 

What we known for sure the tank must not exceed wide of 3.15m (polish railroads loading gauge) therefore we assume approximately 3.0m wide with is not wider than railroad tunnels and wagon platforms for railroad transport and not narrower than a 2.80m for enough crew working space... the rest come from modules proportions. 
 

However GrumpyStarnger render were created on the basis of discussion lead on the odkrywca.pl forums with the help of the knowledge of Mr. Piotr Zarzcki and Mr. Adam Jońca whose are the Polish experts in case of Polish armored vehicles prototypes. 
 

What makes them a reliable source of the appearance of the vehicle:


 

J1YUnH9.pngriMOJnL.png

 


 


Edited by Blackhorse_One_, Jun 30 2018 - 20:59.





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