|Revision as of 22:32, 8 September 2012||Revision as of 08:15, 14 September 2012|
Added 2 historical photos
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Revision as of 08:15, 14 September 2012
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[Client Values; Actual values in
|460460 HP Hit Points|
|54.86/55.554.49/57.5 t Weight Limit|
- Radio Operator
|700850 hp Engine Power|
|35/10 km/h Speed Limit|
|1618 deg/s Traverse|
|12.7615.6 hp/t Power/Wt Ratio|
|60/60/60 mm Hull Armor|
|700/700/1050/1050/ HP Damage|
|38/38/52/52/ mm Penetration|
|r/m 2.4 r/m 1.54 Rate of Fire|
▼1617 Damage Per Minute
With 50% Crew: 0.805 m
With 50% Crew: 0.929 m
|s 4.5 s 5.2 Aim time|
|1212 deg/s Gun Traverse Speed|
|8° Gun Arc|
|-1°/+45°-1°/+45° Elevation Arc|
|4740 rounds Ammo Capacity|
|2012 % Chance of Fire|
|m 270 m 270 View Range|
|m 360 m 625 Signal Range|
Technical requirements for the 212A self-propelled gun were developed in August 1940. The Special Design Bureau No. 2 of the Leningrad Kirov Plant started development based on the KV-220. Blueprints for the vehicle were ready by February 24, 1941, but a prototype was never manufactured. By August of 1941, development was passed on to the UHMP (Ural Heavy Machinery Plant), but a prototype was never built.
It is the merging point between the SU-14 and the S-51. This artillery is mostly an upgrade for the SU-14, with its much smaller size, higher rate of fire, increased mobility, and a big jump in ammunition capacity from 16 to 40 shells. However, S-51 players may view the Object 212 as a downgrade, since it uses the same 203mm B-4, is less mobile than it's predecessor, and plays at a higher tier.
The 212A leads to the Object 261.
Modules / Available Equipment and Consumables
|Rate of fire
|VII||152 mm BR-2||38/38||700/700||2.4||0.65||4.5||5720||92000|
|IX||203 mm B-4||52/52||1050/1050||1.54||0.75||5.2||5200||235000|
|Chance of Fire on Impact
For future self-propelled gun was chosen: the 152.4mm Br-2, which was previously installed on the Su-14 model 1937. This gun was created by the Bureau of Factory "Barricades" in 1931. Comparative tests with the B-30 gun were initially rejected, but for un-clear reasons, still entered service. The choice of the BR-2 was less than optimal since the gun itself had several design flaws, and its prototype was almost destroyed due to a rupture of the barrel. Nevertheless, during the years 1937-1940, 37 guns were fired, which later became part of the heavy cannon Regiment Reserve of the Supreme Command Headquarters.
Nevertheless, for all its shortcomings (low mobility, the complexity in manufacturing, low lifespan of the barrel), the BR-2 had a high capacity. Ammunition for the BR-2 consisted of two types; high-explosive 53-PF-551 weighing 48.9 kg and betonoboynymi 53-D-551 weighing 49 kg. Muzzle velocity of the 53-PF-551 is 880 m / s, with maximum range of 25 km. Contact with any of these shells against a tank or armored personnel carrier resulted in their complete destruction. The gun itself consisted of a barrel (up 47.2 gauge), loader piston type, mast, hydraulic brakes, and hydropneumatic recuperator rollback. Loading guns - kartuznoe, but to facilitate the flow of shells from the ground, it had a special crane used for hoisting. In order to build this artillery system, HF had to significantly modify the chassis. The number of rollers was increased from 6 to 7, with the rear of the distance between them having been reduced, and in the middle (less loaded) it was increased. 4 support rollers remained, but changes in the layout moved the driving wheel forward. A swivel wheel with a screw mechanism for track tensioning is now located on the rear. The suspension of self-propelled guns remained independent torsion. Self-propelled caterpillar design was melkozvenchatoy with a width of 660 mm tracks. Changes to the chassis were made because a full redesign of the layout. The fighting compartment was located behind and partially in the middle part of the body. Another compartment, where the driver and the radio operator were placed, was between the transmission and engine compartments. The hull was welded and assembled from rolled armor plates with thickness' of 20, 30, 50, and 60 mm.
The BR-2 cannon is installed in the wheelhouse and equipped with a telescopic sight. Pointing angles were rather modest and ranged from -3 to 15 vertically and - \ 8 on horizontally. Despite the fact that the shells were now literally "at hand", the loading was severely difficult due to their weight. In order to facilitate the loading, provision was made for the installation of a special pan like the M-10 howitzer of the heavy tank, KV-2. The selection of ammunition for the gun was increased with the addition an armor-piercing projectile weighing 51.07 kg, which had an initial velocity 860 m / s and at a distance of 5000 meters, could penetrate 40-mm armor.
To protect against infantry, the Object 212 was equipped with three machine guns, the DT 7,62 mm. One of them was placed in the frontal case, the second in the the crew compartment, the third was at the zenith, and had to be mounted on a turret on the roof of the crew compartment.
Ammunition for the guns were 47 artillery rounds for the BR-2 and 3000 rounds for the machine-guns. By comparison, the KV-2 heavy tank came with a 36 tank shells and 3,087 machine gun rounds.
Since the estimated mass of the object 212A approached 65 tons, a heavy-duty engine was needed. The option chosen was the 2-engine combination drive with a centrifugal supercharger, which was supposed to reach a maximum capacity of 850 hp. This would allow a maximum speed of 35 km / h and a cruising range on the highway of about 200 km. External communication was with the 71-TC-3M radio and whip antenna, and internal communication (most likely) among the crew members would be an intercom system, ie: the TPU or TPU-3-3bis-F.
Although the heavy self-propelled gun had lost its initial priority, it was approved by the Project 212A ABTU and was accepted for implementation. SAU sought to hold on to building LKZ, and in December 1940, was sent a set of working drawings for the construction of the body. However, at this time the company was heavily loaded with orders for the release of the KV-1 and IS-2, where on completion, were thrown into the main forces of the Kirov. In addition, in April 1941, preparatory work began on the production of the KV-3 (the first version with a lengthened chassis and a 76.2-mm gun), so the ACS forces had no choice.Final assembly of the unit was delayed until June 1941, and after the war, considered not up to the level of "assault" self-propelled guns. Perhaps it could be brought to sea trials, but did not have time to put the LKZ chassis on for ACS. As a result, the self-propelled gun was disassembled and Object 212A reduced to metal.
Sources and External Links
|USA||IIT1 HMC • IIIT18 HMC • IIIM7 Priest • IVT82 HMC • IVM37 • VM41 HMC • VIM44 • VIIM12 • VIIIM40/M43 • IXM53/M55 • XT92 HMC|
|UK||IILoyd Gun Carriage • IIISexton II • IIISexton I • IVBirch Gun • VBishop • VIFV304 • VIICrusader 5.5-in. SP • VIIIFV207 • IXFV3805 • XConqueror Gun Carriage|
|Germany||IIG.Pz. Mk. VI (e) • IIISturmpanzer I Bison • IIIWespe • IVPz.Sfl. IVb • IVSturmpanzer II • VGrille • VIHummel • VIIG.W. Panther • VIIIG.W. Tiger (P) • IXG.W. Tiger • XG.W. E 100|
|France||IIRenault FT 75 BS • IIILorraine 39L AM • IVAMX 105 AM mle. 47 • VAMX 13 105 AM mle. 50 • V105 leFH18B2 • VIAMX 13 F3 AM • VIILorraine 155 mle. 50 • VIIILorraine 155 mle. 51 • IXBat.-Châtillon 155 55 • XBat.-Châtillon 155 58|
|USSR||IISU-18 • IIISU-26 • IVSU-5 • VSU-122A • VISU-8 • VIIS-51 • VIISU-14-1 • VIIISU-14-2 • IX212A • XObject 261|