Wednesday, 20 November 2013

Tank Plans for 1942

Following up the 1941 plans, let's look at the plans for the next year. The past few months have been hard for the USSR. While the German plan to cripple the Red Army in one swift strike failed, industry suffered, and a number of projects were cut. Let's see what the changes look like:

CAMD RF 38-11355-694

6000 KV tanks are to be built, including 1200 in the first quarter (350 in January, and then 50 more each subsequent month). This is 6 times more than the total amount of KV tanks Kirov Factory was assigned during the peace time, but ChTZ is set to help. There is no radio-less version (all KV tanks had radios). One tank costs 635,000 rubles.

15,000 T-34s are to be produced, 6,000 with radios and 9,000 without. The orders are split among three factories: #183, #112, and STZ. A T-34 with a radio costs between 274,500 and 324,500 rubles. A T-34 without costs 269,000-320,000. Leaving out a radio did not result in significant savings, only 5,000 rubles per unit. The price difference between #183 and the other factories is explained by a redesign to the tank, to increase reliability and simplify manufacturing that did not have time to spread. 

There is still a plan for factory #174 to produce T-50 tanks, 600 with a radio and 900 without. One T-50 costs 298,000 rubles, a radio on it is an extra 2,000. The cost is one of the reasons why the tank did not make it into production. Why make a light tank with a 45 mm gun when you can have a medium tank with a 76 mm gun for basically the same price? 

Next we have T-60s. A total of 27,500 were to be built by a number of factories (#37, ZiS, HTZ, GAZ, Kolominskiy), only 4650 of them with radios. Unlike variably priced T-34s, each T-60 costs the same amount: 81,000 for a regular version, 82,700 for one with a radio. A third of the cost of a T-34? Now that's how you make a light tank!

The total numbers add up to 500,000 units, 8150 of which will be needed in the first quarter. The bill totals up to, 110,181,050,000 rubles for the tanks alone, not including service, parts, crew salaries, etc. War is expensive.

Tuesday, 19 November 2013

Soviet Supertanks: Nilov's 4-Turreted Tank

Submitting ridiculous projects wasn't only an officer's job, anyone could have a go. Red Armyman N. N. Nilov decided to do his engineering duty for the Motherland with his invention that he called "4-turreted tank".

CAMD RF 38-11355-1317

The tank was developed between August 21st 1941 and April 18th 1942. In this time, Nilov envisioned a tank that looked like a T-100, but with two extra turrets...on the sides. Much like the T-100 (or at least the proposed T-100Z), the top turret had a big gun (140 mm, with 84 shells) along with machine guns (one coaxial, one collapsible on the roof), and the smaller turret had a 45 mm gun. The side turrets only had high caliber machine guns. The tank carried 10 crewmen. The armour wasn't particularly impressive, only 60 mm in the front hull, rear, and on the turrets, and 45 mm on the sides. However, the tank was supposed to accelerate to 120 kph using a 1200 hp engine. At 80 tons, that would have been doubtful.

Despite the infeasible design, the tank has some useful features, such as a protected ammunition rack at the bottom of the hull and armour screens that cover the tracks.

An interesting thing about the design is the pointed shape of the side turrets. It doesn't have a function, the designer just chose to make his creation look like domes in his home city of Bukhara.

Monday, 18 November 2013

Soviet Experimental SPGs

When the Red Army encountered Finnish defenses during the Winter War, they realized that they had no self propelled guns capable of defeating concrete fortifications. Using the chassis of the three new heavy tanks (SMK, T-100, and KV), new self propelled artillery projects were developed. The only one of them that really got anywhere was the KV-2. Various other projects, such as the 212 SPG (known to many more as Object 212) got somewhere before slowly dying due to a sudden lack of an enemy with fortifications they would be needed against.

CAMD RF 38-11355-101

"Act on the state of completion of the object #212 (SPG)

The current act is composed to state that the following work was performed on the experimental object #212 (SPG) as of May 29th, 1941.
  1. Sketches and technical project, costing 100,000 rubles.
  2. Working blueprints, costing 200,000 rubles.
  3. Armoured hull produced at the Izhor factory, costing 150,000 rubles.
The total cost of the work was 450,000 rubles, which is the sum that must be paid in advance to the project. The final cost will be computed using report calculations.

Lantzberg, Kotin, Rogachev, Shpitanov"

However, the project stalled way before May. The SPG has been sitting in that condition since March. Soon after this document was written, the war started, and the 212 was shuffled around from factory to factory, eventually disappearing forever. 

Work on a self propelled high caliber howitzer had to be put on hold, but the artillery officers never forgot about it. Eventually, the Artillery Committee ordered it back up and running. Item #12 on a list of projects at the Kirov factory (CAMD RF 38-11369-91) contains the following:

"203 mm self propelled B-4 howitzer on the chassis of a KV-1S tank. Kirov Factory and factory #172. Planned work for the Artillery Committee.

The Artillery Committee planning session from April 15th, 1942, identified the need for a self propelled Br-2 gun on the KV chassis. As a result of experience in the construction of self-propelled guns in 1942-1943, it was deemed possible to install a B-4 howitzer in a semi-enclosed SPG. The Kirov factory and factory #172
have a contract with Artkom's 16th department regarding this project. Each factory is developing the project separately."

The need for a Br-2 on a KV chassis appears even earlier, in a document from November of 1941 that lists SPG projects for 1942 (CAMD RF 81-12104-115).

In November of 1943, the GAU chief, Colonel Yakovlev, wrote a letter to the People's Commissar of Tank Manufacturing Malyshev:

"According to your announcement, the Commissariat of Tank Manufacturing intends to continue work on design and production of experimental self propelled 152 mm Br-2 and 203 mm B-4 guns, which was ordered by the GAU in 1940, but was interrupted in 1941 due to the start of the war.

The GAU considers this work to be necessary. The blueprints for the guns and ammunition have been sent to the Kirov Factory SKB-2 by GAU on June 19th of this year.

Orders to deliver a 152 mm Br-2 gun and 203 mm B-4 howitzer to factory #100 have been given.

The technical requirements, revised based on experience of the war, are currently being completed at GAU and will be sent to you in the coming days."

CAMD RF 81-12063-1

That desire was fulfilled in less than a year, in the form of the S-51 self-propelled howitzer. Unlike the previous designs, where the gun was fully enclosed, the S-51 mounted it on a mostly open platform, with a shield in the front that could flip up to protect the crew from shrapnel and bullets.

"An Order of the State Committee of Defense

On the question: manufacturing a party of 203 mm self propelled howitzers B4-S51

The Red Army accepts the 203 mm B4-S51 howitzer, developed by TsAKB NKV, consisting of the 203 mm B-4 field howitzer model 1931 on a KV-1S tank chassis.

NKTP (comrade Malyshev) and GURT of the Red Army (comrade Sosenkov) must deliver 50 repaired KV-1S tanks to NKV, without the rotating turret, and with an intact suspension, engine (with less than 10% of its lifetime hours expended), transmission, and spare parts by the following dates:
  • 25 units by August 10th
  • 25 units by August 25th
NKV (comrade Ustinov) must manufacture parts and organize mass production of 203 mm B4-S51 howitzers in the following time frame:
  • By August 20th: 20 self propelled howitzers
  • By August 30th: 30 self propelled howitzers
During mass production, remove the defects discovered during trials. TsAKB NKV (comrade Grabin) must edit the blueprints accordingly, and turn them in by August 1st to GAU of the Red Army."
CAMD RF 81-12038-413

CAMD RF 38-11369-287

"The 203 mm self propelled "S-51" howitzer built by the NKV TsAKB, consisting of a 203 mm model 1931 howitzer (B-4) on a turretless KV-1S tank with a foundation plate for the installation of the rotating part of the howitzer and slots cut in the roof of the hull for the recoil mechanisms underwent trials. The main technical-tactical characteristics of the self propelled S-51 howitzer are as follows:
  1. Ballistics
    1. Caliber: 203.2 mm
    2. Muzzle velocity: 607 m/s
    3. Maximum chamber pressure: 2366 kg/cm^2
    4. Shell mass: 100 kg
    5. Muzzle energy: 1900 ton-meters
    6. Maximum range: 18025 meters
  2. Combat
    1. Vertical range: 0-60 degrees
    2. Horizontal range: +/- 4 degrees
    3. Ammunition capacity: 12 rounds
    4. Rate of fire: 1-1.5 RPM
    5. Full combat weight (according to TsAKB data): 49.7 tons
    6. Crew: 10
    7. Maximum speed: 30 kph
  3. Design
    1. Bore axis height: 2793 mm
    2. Recoil length:
      1. Long (up to 16 degrees 30 minutes): 1200-1300 mm
      2. Short (from 16 degrees 30 minutes and up): 850-890 mm
    3. Initial pressure in return gear: 40+/-2 atmospheres."
In the meantime, GAU Artkom was developing their own 203 mm SPG at Perm (factory #172). The vehicle, indexed M-22, was very similar to the S-51: a SU-152 with the casemate removed, and B-4 howitzer added.

CAMD RF 38-11369-108

Thankfully, sane artillery projects were also being developed at the time, such as a SU-76 with a 122 mm howitzer, to make a more portable and cheaper SU-122. 

CAMD RF 38-11369-481

"May 1944
To the director of the Gorkiy Automotive Factory

I ask you to order the Construction Bureau to explore the possibility of installing a 122 mm howitzer in an SPG on the chassis of the SU-76.  In order to obtain the tactical-technical characteristics of the 122 mm howitzer, contact the Construction Bureau of the NKV factory #9 in Sverdlovsk. 
Report back on your decision and subsequent actions.

Chief of the GBTU KA
Lieutenant-General of the Tank Forces
Vershinin"

The exact date of the above document was cut off in the scan, but seeing as how all the other stamps and signatures on it are from June, it was likely late May.

Sunday, 17 November 2013

Needs More Censorship

In times of war, you have to watch what your media publishes, in case they leak some information of strategic importance to the enemy. Sometimes, however, things slip through.


This is an issue of Smena magazine for July of 1944. Smena was the magazine of the Central Committee of the All-Union Leninist Young Communist League, published by Pravda, so you'd think it would be pretty harmless. Apparently not.



Zoom, enhance! Here we see some workers assembling cannons. The caption says that they produce 180% of quota. Good for them. However, the cannons they are assembling are shiny new 100 mm BS-3s. The BS-3s were not issued until September of 1944, and did not see their first combat until October. And yet, here they are, a full 3 months earlier. Oops!

Saturday, 16 November 2013

World of Tanks History Section: Battles for Burma Road

On December 8th, 1941, Japanese forces attacked Thailand. On December 25th, the government of Taiwan made peace with Japan, and agreed to a military alliance. The next target for the Japanese was Burma. There were two reasons for this. One was that Burma was a supplier of food (mainly rice) and oil for the British Empire. The other was that China was receiving Lend-Lease aid through a 717 mile long passage known as the Burma Road.

Lieutenant-General Hatton was in charge of Burma's defense. He predicted that the Japanese will come through the Tenasserin district, in the south part of Burma. However, he could not establish a solid defense, and not because he was a poor commander. His forces were of questionable quality. Most of the soldiers were either Burmese or Indian, who hated each other. A lesser part of the army consisted of British soldiers, who could be described as "military pensioners". The English weren't particularly beloved by the Burmese either.

The Chinese knew the importance of Burma, and offered Great Britain their help. Chiang Kai-shek, the Kuomintang party leader, offered 11 divisions to the British during the conference in Chongqing on December 19th, 1941. The British, afraid that the Chinese that enter Burma would never leave, refused. Post-war historians concluded that the presence of a large Chinese force in the region could have greatly altered the situation in favour of the British Empire.

And so, the Japanese attacked Tenasserin. General Hatton's foresight helped little. By January 20th, 1942, the Japanese controlled a significant chunk of Burma, and air raids on Rangoon started on December 23rd, 1941.

In March of 1942, American Brigadier-General Joseph-Stilwell arrived in Burma. This man played a large part in the destruction of Japanese forces in Burma. Chiang Kai-shek gave Stilwell the command of two armies, the 5th and 6th, that were closer to a division in size. These armies entered Burma on March 1st, 1942. Stilwell proposed that a Chinese soldier, if fed, trained, and competently commanded, would fight just as good as a European or American one. His assertion was about to be tested.

On March 3rd, Japanese forces began their attack on Rangoon. By March 7th, the British understood that the loss of the city is inevitible. General Alexander, who replaced Hatton, ordered an evacuation. On March 8th, 1942, Japanese forces entered the city.

After capturing Rangun, General Yida was ordered to take his 15th army north, and defeat the Chinese forces. The Japanese expected the poorly trained and armed Chinese to not last very long against them. The 200th mechanized division, armed, in part, with Soviet T-26 tanks, turned out to be a nasty surprise. It fought in an encirclement for 2 weeks, broke out, and rejoined the rest of the Chinese forces.

By the end of May of 1942, Burma was entirely in the hands of the Japanese. The Burma Road, China's lifeline, was cut. The defeat hit Allied morale hard, to the point where General Stilwell was the only one itching for revenge. In an interview in Deli, he admitted that the Japanese dealt them an embarassing defeat, and it was necessary to find out how. After that, Stilwell reasoned, it is necessary to gather forces and return to Burma.

In June of 1942, Joseph Stilwell left for Chongqing to talk to Chiang Kai-shek. There, the general offered to establish training camps in India for Chinese soldiers, supplying them with instructors and equipment, and America footing the bill. Chiang Kai-shek promised any amount of men. There was one administrative problem: the British refused to let large amounts of Chinese into India. This was the fault of the government, rather than the military. While these debates went on, Stilwell offered another solution: build another road. This falls outside the scope of this article, but let's just say the road was built. Today it is known as the Ledo Road, or Stilwell Road.

Stilwell received the permission to train Chinese soldiers in Ramgar, India, in the end of 1942. The general expected to begin liberation of Burma in 1943. 13 000 Chinese recruits flew to India. They were taught to use modern weapons, and mastered tactical techniques of Western armies. Stilwell planned to train 30 divisions in total.

In 1943, the Temporary Tank Group was formed. At first, it was a mix of American and Chinese crews, but eventually the group was composed on only Chinese tankers. The group was armed with M4A4 Sherman and M3 Stuart tanks, taken from Indian reserves. The group started active combat in Burma in 1944.

In their advance on Mainkwan in March, the Chinese tankers were to strike at the Japanese 18th division. The task was difficult, as the Chinese did not have much combat experience, and the Japanese fought fiercely and skillfully. In order to mitigate losses, Stilwell tried to flank the Japanese whenever possible. So the Japanese do not retreat and regroup, he would engage them with one or two infantry battalions, similar to the Japanese tactics against the British in 1942.

The tank group was to flank the 18th division. The path was blocked by jungle. The first 10 miles were cleared by bulldozer. After that, the tanks followed foot paths. After crossing the river, the assault was sudden. The HQ of the 18th division was captures, and Tanaka, the division commander, barely escaped.

The Japanese fought with infantry, artillery, and a small number of Ha-Go tanks, as well as several T-26 tanks captured from the Chinese.

The tank group fought the 18th division once more in April. The battle was much more fierce. The assault was much slower, impeded by Japanese mountain guns and grenades. The jungles burned from phosphorous incendiary shells. Regardless, the Japanese tanks could not offer much resistance against Chinese Shermans, and were mostly used to support infantry from static positions. The Japanese insist that they destroyed 40 Shermans in that battle. Since the group possessed 33 Shermans, that assertion is amusing. Stilwell himself reported that he lost only 3 tanks.

The last stage of Burma's liberation was the capture of the Japanese base and airport in Myitkyina. 4500 Japanese soldiers were garrisoned at that base. Led by General Mizukami Genzu, they repelled combined Chinese, British, and American assaults by land and air. On August 3rd, when only 184 soldiers remained, Genzu ordered an evacuation and committed suicide.

After the loss of Myitkyina, the Japanese were no longer able to threaten the Burma Road.

Original article available here.

Friday, 15 November 2013

Soviet Sight Testing

The life of KV-1S #15002 was no ordinary life. As its serial number might suggest, it was the second KV-1S built. Later on, it was converted into a KV-85. In a third and final experimental step, it was equipped with a PT-8 sight.

And shot at. CAMD RF 38-11369-64 tells us why:

"Trials of the tank turret by shooting

The tank's armour was tested with mount testing shells, in order to find out the reliability of the optical sight and its mounts.

Factory #100 performed a shelling of the tank with armour piercing shells in order to determine the reliability of various components of the tank. At the same time, this was used by our commission to test the sight.

The IS turret had a new 4x sight installed and carefully calibrated.

The tank as shot at with a 76 mm ZiS-5 gun from a distance of 300 meters. 10 shots were fired, 5 shots with mount testing shells, and 5 shots with armour piercing shells.

The mount testing shells were aimed at the area of the sight, with two shells impacting the shell on the level of the sight, and three in the mantlet on the same plane.

The armour piercing shells were used to test the sturdiness of various parts of the tank (driver's hatch, commander's cupola, etc). The hits were as follows:
  • Driver's hatch: one hit
  • Front armour: two hits
  • Commander's cupola: two hits"
Figure 7. Blue dots represent the mount testing shells. Red dots represent armour piercing shells.

"After shelling, the sight was examined externally and looked into. The result was as follows:
  1. The sight was free of deformations and defects.
  2. Sight adjustment and sharpness did not suffer.
  3. Calibration of the sight was not knocked off.
The support pole of the ocular portion of the sight, welded to the turret, fell off. The ocular part fell down, to the hydraulic turret traverse mechanism. This was a defect of the installation, and not the sight. Additionally, no defects or damages were caused by the falling of the sight. 

These tests show that the PT8-15 sight is sufficiently rugged and continues to function after numerous nonpenetrating hits. The sight mount is adequate. The only part that needs perfecting is the support pole for the ocular part of the sight."

"Figure 8. KV-85 tank with IS turret and PT8-15 sight after shelling. The white marks on the turret are results of the mount testing shells."

"Mount testing shells" are a special kind of shell, used for training. It is a homogeneous shell, with the same mass as the shell it's supposed to represent, but without things like an explosive filler. Obviously, these shells have lesser penetration than regular AP, but the IS turret withstood both types of shell from 300 meters, something Tigers weren't quite capable of

Thursday, 14 November 2013

KV-4 Rewards


"Order #40

On the Kirov factory on May 9th, 1941
  1. After examination of 27 KV-4 projects proposed to SKB-2, presenting a series of solutions for development of new war machines, I remark on several projects focusing on increasing the firepower of the tank, and the project that uses components from currently produced vehicles, considering the manufacturing possibilities of the factory and its economics.
  2. The KV-4 project that uses predominately KV-3 components is approved.
  3. The following engineers contributed useful and original ideas, and are rewarded as follows:
    1. Buganov: 1000 rubles
    2. Duhov: 5000 rubles
    3. Ermolayev: 2000 rubles
    4. Kalivoda: 500 rubles
    5. Pereverzev: 500 rubles
    6. Kuzmin, Mitskevich, Tarotko: 3000 rubles
    7. Moskvin: 1000 rubles
    8. Tseits: 2000 rubles
    9. Sashmurin: 1500 rubles
    10. Bychkov: 500 rubles
  4. Issue 3100 rubles to the Chief Engineer of the 1st department, comrade Kotin, for payment of engineers working on the KV-4 project and subsequent payment of the engineers working on the KV-5 project
Director of the Kirov factory (Zaltsmann)"


The project that was considered the winner was, for some reason, Shashmurin's project (at least according to his memoirs), which resembled a KV-1 with a 107 mm gun in the hull.


According to Gennadiy Petrov, a Russian historical collector that knew Shashmurin personally, he was not a fan of his creation. One of the copies of the blueprints was marked "BS" on the back, which, according to the author, stood for "bred sumashedshego" (mad man's lunacy). 

Wednesday, 13 November 2013

IS-3 Armour Layout

Here is a diagram of the prototype IS-3, illustrating the spaced armour design and variable thickness of the cast turret.
CAMD RF 38-11355-2943

The turret is self explanatory, but the hull is a bit more complicated. The part marked а points to the overtrack hull, 85 mm thick at 60 degrees from vertical. The part marked б points to the overtrack hull screen, only 16 mm thick, 35 degrees from vertical. в points to the vertical hull side, 100 mm thick. г points to the hull bottom screen, 30 mm of vertical armour. д (looks more like a 9, Cyrllic cursive isn't very well supported by most fonts) points to the bottom of the hull, a rather complicated shape made with 20 mm armour plates.

CAMD RF 38-11355-2872

The hull performed admirably during trials, but the turret was upgraded to the above layout. Maximum thickness went from 175 mm to a whopping 249 mm. 

Tuesday, 12 November 2013

Red Army's First Tank

Late stages of WWI showed the value of tanks in armed forces, and the Red Army wanted in on the action. A number of French Renault FT-17 tanks were captured in 1919, but their modernized Russian cousins will not start production for another year. In the meantime, a contest was announced for a brand new domestic tank design. The unit measurements are a bit archaic, so I will be providing conversions.


"TANK BUILDING CALL FOR TENDER

November 2nd, 1919

The Special Red Army Supply Commission declares a call for tender of a tank project. Awards for projects that fully satisfy all conditions are as follow: FIRST - 250 000 rubles, SECOND - 200 000 rubles, and THIRD - 150 000 rubles.
Projects that do not satisfy conditions, but contain original constructions of other tank components which, according to the jury, can be used when building the tank, can also earn an award: 30 000 rubles for a mechanism of tank movement (drivetrain) and 10 000 for all others. Projects accepted by the jury become property of the government. Rejected projects are returned to their authors. The deadline is 1.5 months since the beginning of the bid.
Projects must be sealed in envelopes and sent to Moscow, to the Special Supply Committee building at 4 Pokrovka, addressed to secretary Dosser.

CONDITIONS OF THE TENDER

The project must contain blueprints of a tank, large enough (the overall view and cross-sections must be in 1:10 scale, other blueprints in any scale) to figure out the composition of the tank and the workings of its mechanisms. The tank movement mechanism (drivetrain) must be developed in great detail.
Aside from the blueprints, the project must contain weight calculations for all components except the engine, and specify the materials used.
The project must come in two variants. One variant is armed with two Maxim machine guns, and the other is armed with one 37 mm cannon. Both must satisfy the following criteria:

  1. The tank must move using tracks or some other mechanism. The construction of the suspension must be such that the tank can travel on dirt and country roads no wider than 1.5 Russian fathoms (~3.2 meters), mud, and off-road terrain with loose dirt or sand. The tank needs to cross the following terrain:
    1. Potholes and ditches up to 16 inches (~0.4 meters) deep, grades 15 degrees steep and 40 Russian fathoms (~85 meters) long without overheating the engine.
    2. Roadside drainage ditches, both perpendicular to the axis of the ditch and diagonally across it.
    3. Trenches 9 Russian fathoms (~9 meters) long, 2.5 Russian fathoms (~5.3 meters) deep. Shell impact craters up to 2 Russian fathoms (~4.3 meters) in diameter and up to 5 feet (~1.5 meters) deep. 
  2. Ground pressure must not exceed 0.6 kg/cm^2.
  3. The tank is propelled by an automobile type engine, with the option on running on kerosene. It must be powerful enough to traverse all of the above obstructions.
  4. The armour must be constructed such that the engine can be reached from the inside, and all other components are convenient to access from the outside.
  5. The engine must have a mechanical and electric starter, and must have the ability to be started from the inside.
  6. The tank must have four forward gears and one reverse gear.
  7. The maximum speed must be 15 verst (~16 kilometers) per hour on good, flat ground.
  8. The tank must be agile, and have a turning radius that is as small as possible.
  9. The armour must be made from hardened steel. Thickness of armour plates struck by bullets at a normal angle must be 12 mm. Thickness of sloped and horizontal plates must be 9 mm.
  10. The crew of the first variant must be three members (two machine gunners and a driver) and two members (one driver and one gunner). 
  11. The overall weight of the tank when fully armed must not exceed 700 poods (~11.2 tons).
  12. Armament must be placed in rotating turrets. The cannon variant must have a turret that rotates 360 degrees.
  13. A mount must be developed for a 37 mm Rosenberg gun and a 37 mm machine gun of the Obuhovskiy factory.
  14. The mounts for the first and second gun are to be developed by the project author, and the Rosenberg gun must also have a device to automatically open the breech after a shot.
  15. The cannon must traverse 3 degrees to each side independently of the turret, and should be able to fire using a stock. The machine guns must turn 15 degrees to each side.
  16. The firs variant must have 15 degrees of gun elevation, the second 25 degrees.
  17. The hull or turret must hold 200 shells for the cannon and 4000 for each machine gun. The placement of the magazine must allow for rapid fire.
  18. The gun may be operated while kneeling or standing, with the latter allowing for rapid change of targets.
  19. The gun sight must extend to 500 Russian fathoms (1000 meters) (this is the only instance of a metric conversion in the document)
  20. The turret must provide 360 degree view. It is acceptable to achieve this through a cupola located on the turret.
Confirmed, assistant director of the orders department. Signature."

Sunday, 10 November 2013

GABTU Suggestions

With all the ball tanks, land cruisers, corrugated armour, jetpack skis, tank catapults, electric armour, and endless other absurdities that GABTU received on a constant basis throughout the war, one would think that the people of the USSR couldn't come up with a single good idea. However, there were a number of ideas that GABTU received which were deemed viable. Here is a list of them for 1939 (CAMD RF 38-11355-2177):

"Author: Artsybushev
Proposal: individual torsion bar suspension for tracked vehicle
Note: NATI built a prototype on a Pioner tractor. It is imperative that this suspension be developed for combat vehicles.

Author: Belogurov
Proposal: Mine flail for BT tank
Note: prototype constructed and tested

Author: Belogurov
Proposal: anti-tank mine scout

Author: Bugrov
Proposal: automobile engine with automatic variable compression
Note: Work was done at VBA RKKA, then at ZiS

Author: Blyaherov
Proposal: ammo rack restructuring on BT-5
Note: ABTU's 7th department

Author: Vorobeichik
Proposal: field thermoelectic generator
Note: ABTU's 3rd department. Project is being developed. No orders have been placed.

Author: Vorobyev
Proposal: Attachment for the T-38 to climb vertical obstacles
Note: work was being done by the NIABT proving grounds, but was not completed. It is imperative that the work is completed, and, in the event of good results, used on other types of vehicles.

Author: Evstyugov
Proposal: Warming oil pump
Note: ABTU's 3rd department

Authors: Korotkov, Agafonov, Drozdovich
Proposal: Restructing BT-7's electronics
Note: ABTU's 4th department

Author: Kozhevnikov
Proposal: hydraulic transmission for the T-28
Note: ABTU's 8th department

Author: Kreines and Zaichik
Proposal: Planetary turning mechanism for tracked vehicles
Note: Mechanism was built and tests on the T-38. It is necessary to seriously commit to this project and built it for a heavy or medium tank.

Author: Karpov
Proposal: Gasoline injection engine
Note: include in the plan for investigation work at VAMM RKKA

Author: Kulikov
Proposal: Progressive torsion bar suspension for tanks
Note: Currently being built at ABTU repair base #1

Author: Razumov
Proposal: visibility lights
Note: 8th department

Authors: Serkov N.G, Serkov V.N.
Proposal: Automatic gearbox
Note: a prototype is being developed at NATI

Author: Muhin
Proposal: DT machine gun mount
Note: 4th department

Author: Orlyuk
Proposal: A device for installing and removing suspension springs
Note: 4th department. Currently being built at the 6th repair base of the ABT BVO

Author: Tyurin
Proposal: Changes in the tank crew PHZ bag

Authors: Titov and Kantselson
Proposal: Folding bicycle

Authors: Shor and Tsukernik
Proposal: Stabilizer for T-28 cannon
Note: Device produced at factory #205. The rest of the work is being held up by ABTU. The work must be restarted, and closely watched."

Here is another, for 1940 and 1941 (CAMD RF 38-11355-23):

"Document on proposed inventions, submitted to the inventions department of GABTU BTU of the Red Army.

I. Proposals approved for development (of those submitted in 1940):
Red Army BTU:
  1. Vasiliyev - Mechanical servo in the side friction clutch mechanisms of tracked vehicles. Currently developed at factory #183 and included in production T-34s.
  2. Chernyavskiy - Improved construction of water tanks on Ov and Op locomotives. The proposal was developed at the Voronezh locomotive factory. It is accepted, and ready for mass production.
  3. Ilchenko - Method for producing armoured mirrors. GOI is producing an experimental prototype.
  4. Lozovoy, Chernyalk, Tarshinov - Device for heating battle vehicles. Currently being developed at factory #183.
  5. Pushkin and Laptev - Protection of vehicles from flammable fluid attacks. Proposal was sent for verification to factory #174. We have no reports on their progress.
  6. Stekolshikov - drum type diesel motor. Development is postponed.
  7. Chuyan - Total engine revolution counter. Prototype is developed, undergoing testing at factory #75.
  8. Semenov - Device for automatic slack adjustment during turret rotation. Experimental prototype is being developed at GABTU's NIP.
  9. Volochkov - Pyrostarter. STZ is designing the project.
  10. Polyakov - Telemechanical selector when using a radio line. Development is postponed until we can order a radio line from NII-20.
  11. Syromyatnikov, Kiselev, et al - Device for night-time driving of a tank. Experimental prototypes were produced, and trialled. 
  12. Karpinskiy and Serdyukov - Tank-minesweeper. Kirov factory is producing a prototype.
  13. Kalashnikov - Device for recording engine performance. An experimental prototype has been manufactured and installed in a vehicle, undergoing testing at factory #174.
  14. Inozemtsev, Korobochkin, et al - Device for night-time observation. Experimental prototypes were produced and trialled. 
  15. Ziber and Suslov - VKU [no idea what that decodes as] construction. Experimental prototypes passed trials.
  16. Bushman - Tank ammeter-switch. The proposed device is installed during repairs of electrical devices at repair bases.
  17. Artemyev - Device for stabilizing the BT-7 during motion. Device is being tested on proving grounds.
  18. Vinogradov - BA-20 gas meter. The device was produced at the Izhor factory, and included in a batch of armoured cars.
Red Army ATU
  1. Skribpov - Method of loading motorcycles into a railroad car and a method of attaching them. The proposal was accepted, and is currently being applied by the Izhor factory.
  2. Spiridonov - Use of peat for gas generator machines. The proposal was verified experimentally and developed.
  3. Lenskiy - Device for transporting loads. A batch of these devices was produced.
  4. Panasyuk - Method for repairing car tire tubes in the field. Tested at the GABTU NIP. Subsequent summer-time trials are planned.
Red Army GABTU REU
  1. Kompaniets - Device for drilling through armour. A batch is being produced at repair base #7.
  2. Bogushev - Regeneration and return of platinum from the tank heater catalyst. An instruction manual on how to do this was distributed through the armed forces. 
  3. Yurov - Collapsible tent for field repairs. Included in the tactical requirements for production of mobile repair workshops.
  4. Usanov - Gasoline supply cart. Prototype manufactured.
  5. Pastuhov - Portable gas-electric welding workshop. A trial batch has been manufactured and distributed in the armed forces.
Red Army GABTU UBP
  1. Polyakov - Automatic loader/firing mechanism (instructional device). A batch of these devices has been manufactured.
II. Proposals approved for development (of those submitted in 1941)

Red Army BTU
  1. Konorev - Grenade launcher for tanks. Trials were performed at the proving grounds. A new and improved grenade launcher is being built for further trials.
  2. Bogushev and Segala - New tank heater design. A trial batch is being produced at the "Press" factory.
  3. Savin and Zhuravlev - Tank turret design. Currently being worked on by factory #174.
  4. Temkin, Petrov, et al - Two new types of catalysts for tank heaters. Trials of a new (non-platinum) catalyst are currently in progress at the GABTU NIP.
  5. Kikinzon - Alteration of the tank compass. Currently being tested at the GABTU NIP.
  6. Kucherenko - Altered shell catcher design. Factory #183 has been ordered to produce and test a sample.
  7. Tsehanovskiy - Improved stabilized sight controls. Experimental prototype has been produced at the Stalin VAMM.
  8. Nastenko - Pneumatic diesel motor regulator. Prototype produced, undergoing testing at the GABTU NIP.
  9. Fillipov - Film filter in the engine air intake. NIP trials are planned.
  10. Solofilov - Optical slit for observation through armour. Development has not yet started.
  11. Aristov and Elagin - Flamethrower. Device has been mass produced.
Red Army ATU
  1. Pomogaibo, Maksarev, et al - Use of gasoil for gasoline engines. Passed trials at the GABTU proving grounds. Being tested at factory #183.
Red Army GABTU REU
  1. Lifshitz - Battery reservoir repairs. Proposed method being explored at the Stalin VAMM."