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Škoda T-25 – Tank Encyclopedia

Škoda T-25 - Tank Encyclopedia

Earlier than the occupation of Czech Germans, Škoda works have been one of the world's largest arms producers, well-known for his or her artillery and later its armored automobiles. In the early 1930s, Škoda participated in the design and development of tanks, adopted by tanks. Many models like LT vz. 35 or T-21 (built underneath license in Hungary) but others by no means passed the prototype part. The work of the brand new design through the warfare was sluggish, however some fascinating tasks have been developed, such as the T-25. This was an try and design and build a tank that might be an effective opponent of the Soviet T-34 central tank. It will have been an revolutionary major pistol, a very inclined armor and wonderful velocity. Sadly, the prototype of this car was by no means built (only a picket mannequin) and remained a paper challenge

T-25 middle tank. That is another drawing of the T-25 with a recognized tower. It’s a form of T-25 commonly recognized immediately. Photograph: SOURCE

Škoda Tasks

The Škoda steel factories in Pilsen established a special weapons department in 1890. Initially, Škoda was specialized in the manufacturing of heavy forts and naval weapons, but began the design and development area weapons. After the First World Struggle and the collapse of the Austrian-Hungarian Empire, the brand new Czech nation joined the Slovak nation and shaped the Czechoslovak Republic. Škoda's works survived these turbulent occasions and managed to maintain his place on the earth as a well-known weapon maker. In addition to producing weapons within the thirties, Škoda turned a automotive producer in Czechoslovakia. The house owners of Škoda did not initially present curiosity in tank improvement and manufacturing. Praga (another famous Czechoslovak weapons producer) signed an agreement with the Czechoslovak military in the early 1930s to develop new tank and tank models. Owing to these potential new enterprise alternatives, Škoda's house owners determined to start out creating their own tank and tank design.

Between 1930 and 1932, Škoda tried to get several military consideration. By 1933, Škoda designed and manufactured two tanks: S-I (MUV-4) and S-I-P, which have been shown to army officials. Since Praga had already acquired a manufacturing order, the military solely agreed to check Škoda's tanks with out ordering them.

By 1934, Škoda gave up the event of future tanks as a result of that they had proved to be ineffective as combat automobiles and transferred to tank models. Škoda introduced several tasks to the army, nevertheless it did not get any production orders despite the fact that the S-II-a mannequin managed to get some attention from the army. Although it proved to be insufficient in the course of the military testing that occurred in 1935, it was further put into manufacturing by the army designation Lt. 35. They acquired 298 automobiles for the Czechoslovak army (1935-1937) and 138 have been to be exported to Romania in 1936.

In the late 1930s, Škoda suffered some setbacks in making an attempt to promote automobiles abroad and canceling the S-III media tank. By 1938, Škoda targeted on designing a brand new department of medium-sized tanks, generally known as T-21, T-22 and T-23. Because of the Czech occupation of Czechoslovakia and the establishment of the Bohemian and Moravian Protectorate, in March 1939 the work of those fashions was suspended. In the 1940s, the Hungarian army attracted great interest within the T-21 and T-22 fashions, and in August 1940, a contract with Hungarian licensing production was signed with Škoda


: First, the primary letter of the producer's identify (for Škoda, this was & # 39; S & # 39; or & # 39;). Then Roman numerals I, II or III can be used to explain the type of car (for tanks I, II for mild tanks and III for medium tanks). Typically a 3rd character is added, which means a particular function (comparable to "a" for a cavalry or "d" for a weapon, and so forth.). After the car was permitted for use, the military would give the car its personal identify.

Škoda works in 1940 utterly deserted this technique and introduced a new one. This new naming system was based mostly on the letter T and the quantity, for example T-24 or the final set of T-25.

Historical past of T-24 and T-25 Tasks

The TsKD company (with the German occupation changed to BMM Bohmisch-Mahrische Maschinenfabrik) was essential in the course of the struggle for German conflict. It carries numerous armored automobiles based mostly on the successful Panzer 38 (t) tank.

The designers and engineers of Škoda's works have been additionally not idle in the course of the struggle and made fascinating designs. First, they have been on their very own initiative. The primary drawback of the Skoda military firstly of the conflict was that German army and industrial officers were not interested by growing arms production to occupied nations, although there were some exceptions resembling Panzers 35 and 38 (t). Throughout this time, the manufacturing of Škoda weapons was very restricted. After the attack on the Soviet Union and the Germans needed to change this great loss and the lads and material

Since virtually all German industrial capacities have been directed to ship Heer (German Army Military), the Waffen SS (kind of Nazi military) was typically left blank. In 1941, Škoda launched the Waffen SS to a self-propelled weapon venture based mostly on the T-21 and armed with a 10.5 cm hook. The second venture, T-15, was designed as a quick-lit container and was also launched. Though SS was fascinated with Škoda models, nothing got here out of this.

The designers and engineers of Škoda had the chance to explore a few of the Soviet model T-34 and KV-1 designs (probably 1941 or 1942). It will not be mistaken to say that they could have been shocked to determine how these have been higher for cover, firepower, and bigger our bodies than their own tanks, and even for many German tank fashions at the moment. In consequence, they immediately began a new design (it might don’t have anything to do with the older Škoda models), which would have a lot better armor, mobility and enough firepower. They hoped that they might persuade the Germans, who at the moment have been desperate for an armored car that would effectively combat Soviet tanks. Two comparable fashions would emerge from this work: T-24 and T-25 tasks

The Germans agreed with Škoda originally of 1942, allowing them to develop a brand new tank design on the idea of several criteria. The primary circumstances imposed by the German army have been: ease of manufacturing and scarce assets to supply them shortly and to have an excellent stability between firepower, armor and mobility. The primary built picket models have been ready by the top of July 1942, and the primary absolutely useful prototype was ready for testing in April 1943.

The primary proposed challenge was delivered in February 1942 by the German Weapons Testing Agency (Waffenprüfungsamt). Within the T-24, it was an 18.5-tonne mid-tank mounted on a 7.5 cm weapon. The Soviet Union T-34 was closely influenced by T-24 (and later by T-25) relating to slanted armor design and a pre-installed tower.

One other proposed undertaking was referred to as T-25, and was heavier in 23 tons with a caliber (however totally different) with a 7.5 cm weapon. This venture was proposed to the Germans in July 1942 and the required technical documentation was accomplished in August 1942. The T-25 appeared extra promising to the Germans because it met the demand for good mobility and firepower. Consequently, T-24 was abandoned initially of September 1942. The previously built T-24 wooden mannequin was scrapped and all related work was stopped. The event of T-25 continued until the top of the yr, when a German soldier lost all his curiosity in December 1942 and ordered Škoda to stop the longer term work of this undertaking. The Škoda instructed two self-propelled models based mostly on the T-25, which have been armed with 10.5 cm and above 15 cm hawks, but as a result of your complete venture was rejected, nothing got here out of this.

What ought to it seem like?

There are sufficient technical options of the T-25 tank, but the actual look is somewhat ambiguous. The primary drawing of the T-25 was dated 29 Might 1942 (referred to as Am 2029-S). It is fascinating from this drawing that there look like two several types of swells positioned on one physique (T-24 and T-25 had very comparable bodies, however totally different dimensions and armor). The smaller tower in all probability belongs to the first T-24 (it may be recognized with a shorter 7.5 cm weapon), while the bigger one should belong to the T-25.

drawing (named Am 2029-S) from T-25, together with a seemingly smaller tower which will belong to T-24. As a result of these two had a very comparable design, it is straightforward to make a mistake for one car once they weren’t. Picture: SOURCE

The second drawing of the T-25 was made (probably) on the end of the 1942s and its tower is totally totally different. The second tower is barely larger and has two prime metallic plates as an alternative of one. The front of the primary tower can be almost definitely (troublesome to precisely decide) rectangular, while the opposite would have a extra complicated hexagonal form. The existence of two totally different tower fashions at first glance could seem somewhat uncommon. The reason may be that in Might T-25 was nonetheless in the early levels of research and design, so modifications have been needed in the second half of the yr. For instance, the set up of a weapon required more room and thus the tower had to be considerably larger, and the crew had to work more room to operate effectively.

Technical characteristics

The T-25 accommodates reliable info and sources relating to the technical traits of the Škoda T-25 from the engine used and the estimated most velocity, armor thickness and armament to the crew. Nevertheless, it is rather necessary to note that in the long run the T-25 was just a paper undertaking and was never constructed and examined, so these numbers and knowledge might have modified in a real prototype or later during production.

The T-25 suspension consisted of twelve 70 mm diameter wheels (six on all sides) each with a rubber tire. The bikes have been paired in pairs, for a total of six pairs (three on both sides). There were two rear-wheel sprockets, two entrance guides and a return roll. Some sources say that entrance-end users have been truly chain wheels, however this seems unlikely. Analyzing the part of the T-25 behind the Am 2029-S (precisely the last wheel and traction sheave) reveals what seems to be the transmission configuration for rotating the rear wheels. The front frame construction does not seem to have left room for the entrance gearbox set up. The suspension consisted of a torsion bar beneath 12 floors. The rails can be 460 mm large and a attainable ground strain of 0.66 kg / cm²

The T-25 is designed first with an indefinite diesel engine, but was typically rejected through the improvement part. petrol engine. The selected primary engine was the 450 hp 19.814 liter air cooled Škoda V12, which started at 3500 rpm. Apparently, another small auxiliary engine that produces only 50 hp was additionally purported to be added. The aim of this small auxiliary motor was to start out the primary engine and provide further energy. When the primary engine was began with an auxiliary motor, this in turn begins both electronically or through the use of a crank. The very best theoretical velocity was about 58-60 km / h.

The Soviet T-34 affected the T-25. This is the obvious slant in armor design. The T-25 can be constructed utilizing welded armor in both the bodywork and the tower. The armor design seems to have been a very simple design with angled armor plates (whose actual angle is unknown but probably 40-60 °). In this means, the need for rigorously machined armor plates (akin to Panzer III or IV) was pointless. Additionally with larger single-piece metallic plates, the construction was made a lot stronger and simpler for manufacturing as properly.

In response to official manufacturing unit archives, the thickness of the armor was 20 – 50 mm, however in line with some sources (similar to P.Pilař), the utmost arm was no more than 60 mm thick. The maximum thickness of the tower was 50 mm, the edges 35 mm and the again 25-35 mm. A lot of the tower gloves have been inclined, which elevated safety. The higher entrance panel armor was 50 mm, the decrease also 50 mm. The lateral armor was 35 mm, the lower vertical armor was 50 mm thick. The roof and flooring armor had the identical 20 mm thickness. The T-25 dimensions have been 7.77 m lengthy, 2.75 m broad and a couple of.78 m high

The body structure was kind of typical with a separate front compartment compartment and rear engine divided by other compartments eight mm: n thick sheet. This was accomplished to guard the crew from the heat and noise of the engine. It’s also essential to protect them from potential fires brought on by some malfunctions or injury. The full weight was estimated to be about 23 tonnes


The T-25 crew consisted of 4 members who might sound unusual in line with German requirements, but using an automated loading system meant that the loader was not an issue. The radio operator and the driving force have been within the car physique whereas the commander and shooter have been in the tower. The entrance of the crew consisted of two seats: one on the left for the driving force and the opposite on the correct for the radio operator. The radio gear used would in all probability have been German (probably Fu 2 and Fu 5). The T-25's entrance-mounted tower design had one major drawback because the hull crew members had no hatches both on the prime of the chassis or on the sides. These two crew members had to take the battle positions by means of the tower hatches. In an emergency the place crew members have been pressured to flee shortly from the car, it might take too long, or it might be unimaginable because of the injury brought on by the battle. In line with the T-25 drawings, the body had 4 views: two on the front and one on both corners. The driving force's armored views look like of the identical form (probably with armored glass) as in the German Panzer IV.

The rest of the tower was a crew. The master was situated on the left-hand aspect of the tower, the place the shooter was in entrance of him. To watch the surroundings, the commander had a small dome with a totally rotating periscope. It isn’t recognized if there have been aspect photographs on the tower. There’s one hatch to the door commander within the tower, probably yet one more up and perhaps even one behind as within the later Panther model. The tower might be turned through the use of hydropower or mechanical drive. For communication between the crew, particularly the commander and the crew members, mild alerts and phone gear had to be offered

Picture of T-25 with a previous tower.

Picture of T-25 on one other design tower. This is able to in all probability have seen the T-25 if it went into production.

3D Model of T-25. This mannequin and the patterns described above have been made by means of our Patreon marketing campaign at Heisey, funded by Patron DeadlyDilemma

The Military

The primary weapon chosen for T-25 was fascinating in many ways. It was Škoda's own experimental design, a 7.5 cm A18 L / 55 caliber with no muzzle braking. In Germany, this weapon was named 7.5 cm Kw.Okay. (KwK or KwK 42/1 relying on source). The gun case was rounded to offer good ballistic protection. This gun had an automated drum loading mechanism that contained 5 turns with a maximum estimated hearth of about 15 rpm or about 40 rpm in a full automotive. The gun was designed in order that after each spherical of burning, the worn case is routinely removed by compressed air. The velocity of the A18 was 900 m / s in accordance with the archives of the official factories. The unfold of the armor at a distance of 1 km was about 98 mm. The capacity of the T-25 projectiles was about 60 turns; most can be AP with a smaller amount of HE rounds. The entire gun (along with the coat) was about 1600 kg. The height of the A18 gun was -10 … + 20 °. This weapon was truly built in the course of the conflict, however because of the withdrawal of the whole challenge, it was more likely to be saved where it remained at the finish of the struggle. As struggle investigation continued and examined with one Panzer VI Tiger I heavy-obligation tank.

The secondary weapon was a light-weight machine gun with an unknown sort (estimated at three,000 rounds of ammunition) situated on the suitable aspect of the tower. . Whether or not it’s coaxially mounted on the primary gun or it was used independently (as in Panzer 35 and 38 (t)), it isn’t recognized, but the first one is probably right as a result of it’s more practical and commonly used on all German tanks. It isn’t recognized whether there is a machine gun mounted on the physique ball, although some present pictures do not appear to look the same. It’s attainable that it is going to be put in and in that case the radio operator will use it. It is equally attainable for a radio service operator to make use of his private setting (probably MP 38/40 or even MG 34) to grow to be his entrance gate, as is later the case with Panther Ausf. D MG 34 "letterbox" flap. Regardless of the potential absence of a machine gun on the chassis, there was no vital fault as a result of it brought on weak points on the front arm. If the T-25 used a machine gun (and a tower), it will in all probability have been both the German MG 34 utilized in all German tanks and automobiles in both coaxial and chassis attachments or Czechoslovakian VZ37 (ZB37). Both have been 7.92 mm caliber machine guns and Germans until the top of the second conflict


Like different German armored automobiles, the T-25 tanker was for use on quite a lot of self-propelled models. Two comparable fashions with totally different weapons have been prompt.

That is maybe the only picket mannequin of self-propelled fashions proposed by Škoda based mostly on T-25. Photograph: SOURCE

There’s confusion concerning the actual bark used. It might have been the Škoda-built 10.5 cm leFH-43 bark (10.5 cm leichte FeldHaubitze 43) or the Krupp pike motion of the identical identify. Krupp only constructed a picket beam when Škoda built a useful prototype. We must additionally bear in mind that since T-25 was a Škoda design, it might be logical to imagine that designers use their weapons as an alternative of Krupp. The Škoda 10.5 cm leFH 43 was designed in the long run of 1943 and the primary operational prototype was constructed only at the finish of the struggle in 1945.

10.5 cm down FH 43 was an enchancment to the prevailing leFH 18/40 bark. It was a longer weapon, however the largest innovation was the design of the wagon, which allowed the 360 ​​degree to move. The 10.5 cm leFH 43 options have been: peak -5 ° – + 75 °, displacement 360 °, working weight 2200 kg (area transport).

t Photograph: SOURCE

Nevertheless, there’s a appreciable risk that the weapon that may be utilized in apply was 10.5 cm leFH 42. This weapon was designed and built to a limited extent at about the same time (in 1942) as the T-25. Each the Krupp and Škoda barks have been designed and constructed for a very long time after the event of T-25. A 10.5 cm long FH 42 ball brake is similar to a picket mannequin, but this isn’t the final proof that this was a weapon, only a simple remark.

The 10.5 cm leFH 42 features included: peak -5 ° – + 45 °, monitor 70 °, operating weight 1 630 kg (subject transport), maximum vary 13 000 km, velocity 595 m / s. rejected 10.5 cm width FH 42 and just a few prototypes have been constructed

One of many few 10.5 cm Le FH 42. Photograph: SOURCE

There’s a actual probability that none of these two pikes would have been used if this variation had come into production. The explanations for this are as follows: 1) None of the three 10.5 cm pikes have been obtainable as a result of the German army had not accepted them or was not ready by the top of the struggle. 2) Only a picket mannequin was built on a 10.5 cm self-propelled car based mostly on T-25. The ultimate choice on the primary weapon would have been made solely after the operative prototype was properly constructed and examined. Since this was just a paper venture, we cannot be positive whether or not the change was practically potential 3) because of maintenance, ammunition and the supply of 10.5 cm leFH 18 (or later improved fashions) in manufacturing

15 cm sFH 43 (schwere FeldHaubitze) hawk. The German army requested a number of artillery manufacturers to design a fork with a distance of as much as 18,000 km and a excessive hearth. Three totally different producers (Škoda, Krupp and Rheinmetall-Borsig) responded to this request. It wouldn't go into manufacturing as a result of solely a picket model has ever been built.

Because of the cancellation of the T-25 tank, plainly only a 10.5 cm armed car is manufactured from wooden. Together with these main weapons, there’s little recognized about these modifications. In response to an previous photograph of a picket model, it seems to have had an entirely (or no less than partially) rotating tower with a light-weight machine gun. On the hull aspect we will see what seems like a lifting system (probably one on each side) designed to struggle the tower. The indifferent tower can then be used as a static hearth protection or placed on wheels as a regular towed artillery just like a 10.5 cm leFH 18/6 auf Waffentrager IVb German prototype machine. Some additional units (or elements of the gun) appear on the prime of the engine compartment. The rear car (behind the engine) has a box that exhibits the wheel holder or probably additional ammunition and spare elements


The story of the T-25 was very brief and didn’t progress beyond the drawings. Regardless of the exhausting work of the Škoda staff, nothing was finished with plans, calculations and wood fashions. Asked question: why was it rejected? Sadly, within the absence of enough documentation, we will solely speculate on the explanations. The obvious is the higher armed Panzer IV Ausf. Model F2 (put in with a longer 7.5 cm weapon) that might be built with present production capability. The primary absolutely practical T-25 would in all probability have been capable of build solely in 1943 as a result of the time needed for testing and placing it into operation would have taken too long.

By the top of 1943, it’s questionable whether T-25 would still be a very good design, it can be thought-about outdated. Another attainable floor for rejection was the reluctance of the German military to introduce another design (because at the moment Tiger's improvement was in progress) and thus emphasised the already overwhelmed army business. Additionally it is potential that the Germans have been unwilling to simply accept overseas design and favor home tasks. One more reason stands out as the experimental weapon itself; it was progressive, however how it might work in real combat circumstances and the way straightforward or complicated it might be in production is greatest uncertain. The necessity for brand spanking new ammunition manufacturing would also make it harder for German ammunition manufacturing to be too difficult. It is subsequently comprehensible why the Germans won’t ever settle for this undertaking.

Finally, the T-25 was by no means put into service, although (a minimum of on paper) it had a great weapon and good mobility, a strong armor and a relatively easy construction. Nevertheless, it ought to be borne in thoughts that this was only a paper venture and that in actuality the results would have been utterly totally different. Regardless of the fact that it was brief-lived after the struggle, it was principally forgotten comparatively lately because of its presence in on-line video games.


Dimensions (LWH) 7.77 x 2.75 x 2.78 m [19659059] Complete weight, completed 23 tons Crew 4 (shooter, radio operator, driver and commander) Military 7,5 cm Škoda A-18
unknown mild machine weapons Armor 20 – 50 mm Propulsio Škoda 450 hp V- 12 air-cooled Velocity ​​on / off 60 km / h Complete production None


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The writer of this textual content would give a chance to precise his appreciation Frantisek "SilentStalker" to Rozkot in writing this article.
Projekty středních tank Škoda T-24 a T-25, P.Pilař, HPM, 2004
Enzyklop adie Deutscher Waffen 1939-1945 Handwaffen, artillery, Beutewaffen, Sonderwaffen, Peter Chamberlain and Terry Gander
World Warfare II German artillery, Ian V.Hogg,
Czechoslovakian tank vans 1918-1945, HCDoyle and CKKliment, Argus Books Ltd. 1979
Škoda T-25 Manufacturing unit Design Necessities and Drawings, dated October 2, 1942, Documentary Am189 Sp

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