GT-T floating tracked carrier

The tracked tractor-carrier, also known under the designation “Product 21”, was created in the USSR at the end of the 1950-ies and was widely used in the Soviet Army and in the national economy. The start of serial production of the GT-T was the reason for the cessation of the development in the Soviet Union of a number of wheeled all-terrain vehicles (for example, ZIL-E167). The creation of such a universal machine with excellent flotation characteristics and able to swim, brought the Soviet engineering to a new level. More than half a century later, the GT-T snow and swamp vehicles, various modifications and upgrades of this machine are still suitable for use and are in demand in the Russian market. This technique is widely used in various fields of production, especially in the Far North.

The idea of ​​creating a new floating tracked carrier in the USSR was addressed at the end of the 1950s. In 1958-1960, the machine was developed by the designers of the Kharkov Tractor Plant. The model received the designation "product 21", its production was planned to expand on the recently built Rubtsovsk machine-building plant (today a branch of the Scientific and Production Corporation "Uralvagonzavod"). The first two conveyor hulls were built at the new plant at the end of 1961 of the year. In March 1962, the main conveyor for their assembly was successfully put into operation, and the first two products were assembled and put into operation. During the entire 1962 year, an installment batch consisting of five cars was additionally released. The following year, the production volume of GT-T transporters is already 10 machines per month, and by the end of 1966, it reached a stable level at all-terrain vehicles 110-120 monthly.

In 1968, a branch of RMZ for the production of floating all-terrain vehicles GT-T in Semipalatinsk was organized, and since 1977, the production of these machines, which were assembled more than 10 thousand pieces, was finally transferred to the branch. In the period from 1983 to the beginning of 1990-ies in Semipalatinsk they were annually assembled and sold around 600-700 tracked tractor-tractors GT-T. In 1990-s, work was carried out to modernize the machine, in particular, the B-6A diesel engine was replaced with more advanced and powerful YMZ-238 Yaroslavl engines. The engine compartment was moved to the middle part of the tractor, which made it possible to achieve a more uniform weight distribution of the machine. We also developed rollers with the most wear-resistant polyurethane coating.

GT-T in the Museum of military equipment "Martial glory of the Urals"

GT-T construction

Tracked heavy conveyor-tractor is a high-speed vehicle of high throughput, able to float, with bearing body and front drive wheels. This conveyor tractor with an independent torsion bar suspension is designed to transport people and various goods off-road in conditions of wooded and swampy terrain and snowy virgin lands in the Far North and Polar regions with simultaneous towing of special wheeled ski trailers or other systems with a total mass of no more than 4's tons. The carrying capacity of the conveyor itself 2 tons or 23 person, the crew - 2 person. The movement of the conveyor on the water was provided by a tracked propulsion unit. To increase the speed of movement of the conveyor afloat when overcoming various water barriers, quick-detachable hydrodynamic shields can be installed on the front flaps of the GT-T hull.

The GT-T conveyor was equipped with water-draining means, which consisted of a mechanical centrifugal as well as a manual piston pump. By the standard set of spare parts of this all-terrain vehicle means of increasing the patency were attached. For example, additional lugs could be used to improve the grip of the tracks of the conveyor with the ground, and special chains and a “legendary” log could be used for self-pulling when stuck, without which it is difficult to imagine models of Soviet armored vehicles today.

The operation of this vehicle in off-road conditions, highly rugged terrain with the presence of small vegetation and deep water obstacles did not cause any complaints. In winter, the conveyor-tractor could be used at extremely low ambient temperatures. Due to its qualities, the GT-T was widely used in the Soviet Army until the collapse of the USSR. In addition to the army, the car was in demand and the national economy. The tracked tractor GT-T fully managed to share the glory of the pioneers of the development of the North, who with the help of this machine successfully passed through virgin forests and unsteady peatlands (Mari).

The bearing body of the caterpillar heavy conveyor tractor was all-metal, welded frame construction. The base of the case was sealed, the body - open type. The body of the all-terrain vehicle was divided into three sections: the engine-transmission, the cabin and the body. In the front part there was a logging equipment, which was separated from the cabin by special partitions and fences of the engine located in the center of the cabin. To the left of the engine was the place of the GT-T driver and chassis controls. In the middle part of the body of the all-terrain vehicle was a four-seater cabin, and in the aft there was a body. The body and the cabin were not separated. On top of the body could be closed with a special awning from canvas fabric.

The heart of the conveyor tractor was a 6-cylinder four-stroke diesel engine B-6A liquid cooling, it developed the maximum power 200 hp at 1800 rpm The engine worked in conjunction with a mechanical double-flow transmission with two planetary friction turning mechanisms. The transmission had 5 forward gears and one - rear. The maximum theoretical TG-T speed on paved roads in fifth gear was 45,5 km / h, the maximum back speed was limited to 6,54 km / h. In this case, according to the technical documentation and operating instructions, the average technical speed of the TG-T tractor when driving on a dry dirt road of average quality with a load and trailer was 22-24 km / h. The average fuel consumption was 90-110 liters per 100 kilometers, which provided the car with a power reserve of about 500 km.

View of the driver's seat GT-T

The chassis of the GT-T conveyor tractor consisted of six pairs of rubber-coated bearing rollers. In front of the car were driving wheels, in the back - guide wheels. Tracked tape included 92 small link with articulated-floating fingers and zevochnom gear. All-terrain vehicle suspension was independent torsion bar. The movement of the machine afloat was ensured by the track-type propulsion unit, the maximum speed of the GT-T in calm water did not exceed 6 km / h. To increase the speed of motion afloat, quick-release hydrodynamic guards could be used.

Modern modifications and upgrades GT-T

Currently, the Rubtsovsk branch of OAO NPK Uralvagonzavod offers its customers a civilian version of a snow-swamp-going tracked carrier-tractor under the designation GT-TM. This snow and swamp-going vehicle is intended for transportation of rotational and repair crews, delivery of oversized cargo to areas with severe soil and climatic conditions. In front of the GT-TM there is a vibration-noise insulated cabin for the driver and two passengers, in the rear part there is a passenger-cargo tent body. Control of the tracked-type tracked off-road vehicle with a hydro-volume steering mechanism. The engine compartment is located in a closed compartment, to which, if necessary, maintenance is provided free access. The design of the crawler conveyor tractor allows the towing of special equipment and trailers. In this case, the conveyor is able to overcome water obstacles on the move.

The all-terrain vehicle is equipped with a more powerful 8-cylinder V-shaped diesel engine of liquid cooling JAMZ-238BV with a displacement of 14,86 liter. This engine of the Yaroslavl Motor Plant develops the power of the HP 310. (228 kW). The mass of GT-TM in the curb state reaches 11,6 tons. The load capacity of the body has grown to 2500 kg, the mass of the towed trailer - to 5000 kg. According to the official website of the Rubtsovsk Machine-Building Plant, the maximum speed of the all-terrain vehicle, due to the installation of a more powerful diesel engine, increased to 60 km / h, the range of fuel is 600 km. Temperature operation of the GT-TM crawler conveyor tractor is possible in the range from -45 to + 45 degrees Celsius.

GT-TM Rubtsovsk branch of JSC "NPK Uralvagonzavod"

In the Russian market today you can find other upgrades of the famous Soviet conveyor-tractor. For example, the company “Snowbutter”, a member of the group of companies GIRTEK, over more than 15 years of its activity, has overhauled and upgraded more than 1000 various Soviet-made snow and swamper roads, including GT-T. Currently, the company offers a model of the conveyor with the 8-cylinder engine YMZ-238V horsepower 240. The maximum speed of such an all-terrain vehicle is 55 km / h. In addition, the company can manufacture and install on the all-terrain vehicle a metal insulated passenger cabin (kung) designed for an 12 person.

In addition, the company offers a deeply modernized cargo-to-passenger version of the GT-T all-terrain vehicle with a chassis that was extended by one roller (became 7) and with the YMZ-238BL-1 engine with 310 horsepower. The load capacity of this version has increased to 4000 kg (1500 kg more than MTLB). The total number of passengers in the new enlarged cabin, which was insulated with “penoplex” and sheathed with plywood, is 8 people. Also installation of the cabin heating system was made.

GT-T cargo and passenger company "Snegbolotokhod" with an extended chassis (7 track rollers)

The advantages of the GT-T tracked conveyor-towing vehicles, which allow them to remain in demand in the market in the XXI century, include their outstanding characteristics. This snow and swamp-going vehicle is considered to be one of the most passable, among all models presented on the domestic market. Its weight is less than that of MTLB, and the caterpillar is wider - 560 mm. In aggregate, this provides the ground pressure at the level - less than 0,25 kgf / cm2.

Tactical and technical characteristics of the GT-T:
Overall dimensions: length - 6340 mm, width - 3140 mm (on track chains), height - 2160 mm.
Mass - 8,2 tons (refilled, with spare parts, without cargo in the back and crew).
Body carrying capacity - tons of 2.
The weight of the towed trailer - 4 tons.
The number of seats is 4 (in the cab), 21 (in the back).
The power plant is a four-stroke diesel engine В-6А liquid cooling capacity HP 200. (at 1800 rpm).
The maximum speed is 45,5 km / h.
Maximum speed afloat - 6 km / h (in calm water).
Fuel tank capacity - 550 l.
Power reserve - 500 km.

Information sources:
http://www.uvzrmz.ru/product/100
http://www.russianarms.ru/forum/index.php?topic=471.0
http://snegobolotohod.ru/projects/gusenichnyj_tyagach_gt-t__gruzo-passazhirskij_s_dvigatelem_yamz-238
Open source materials

Comments

[Free wind]

Appearance is gorgeous !!!!!!!!!!!!! Inside hell and somalia. In addition to the wild fuel consumption of the u-d6 engine, add crazy oil consumption. But the appearance is gorgeous and cross for those times is excellent.

[novobranets]

Quote: Free Wind

Inside hell and somalia.

The driver's seat does not seem convenient, from the word "finally". And the general view is interesting, with beveled corners it resembles the BTR 152.

[Alex_59]

Quote: novobranets

The driver's seat does not seem convenient, from the word "finally". And the general view is interesting, with beveled corners it resembles the BTR 152.

An old Soviet anecdote comes to mind: "A good truck is the Tatra, but two years in the north and no Tatra. And the KRAZ truck is even better, but two years in the north and there is no driver."

[Mar.Tirah]

Quote: Free Wind

To the wild fuel consumption of the u-d6 engine

There are already completely different parameters and the YaMZ 2328 engine. In Siberia, this machine is a disaster and revenue. The author did not mention that it is FLOATING, and he has a booster pump if water comes from the side. The GTT begins to miss the winter roads first. It is in second place after the helicopter. It is bad that it has not yet been changed in terms of the comfort of the driver and passengers. Warming will be better than Kruzak.

[irazum]

Yes, "hell and Somalia", the engine roars furiously, personally I liked the GAZ-71 "Gazushka" more, as in "Zhiguli"!

[The leader of the Redskins]

Thank you for an interesting article on a rare example of technology.

[K-50]

I can only add that the chassis was unified and based on the PT-76 base, as well as the GSP-55.
Thanks to the author.

[Zaurbek]

The design of 50-60-70x was beautiful ... and now something is lame.

[Goblin]

The car is oak, but gorgeous in cross-country ability, the only thing is that you need to put as many spotlights on the roof as possible without them in a strong snowstorm at night, and don’t forget to attach the log to the board. Well, follow the tightness, otherwise you can drown accidentally.

[Potter]

People drowned when crossing the Zeya. All came out, thank God.

[Free wind]

Turning on the chandeliers on the roof in a blizzard, the driver enjoys the view of flying snow, an incredible kaleidoscope of swirls of snow mass, it is very beautiful, but it is in front of your face, 2-5 meters. No further visible. It happens that without light you are better oriented, especially in the full moon, even in a snowstorm.

[Aristarkh Lyudvigovich]

In the Arctic, many of these transporters abandoned in due time to rot. Now disposed of.

[Earnest]

How in the army they love and scold him, at the same time ... How many times the ghetteshka delighted me in the winter, with its "unlimited" cross-country ability, on any virgin soil, and how many times, having driven it for a day, barely had time to hide from his famous "grub" with oil and soot from the exhaust pipe at the moment of the start of movement And who did not have time, that staff rat and a dirty pig

[Potter]

Machine geologists, prospectors, builders of Siberia and the Far East. BAM car.

[VictorZhivilov]

... builders of Siberia and the Far East. BAM car.

An association with Magirus.

[old_pferd]

Great cross. The former B-6A engine, of course, was crap with a small resource. An ejection hood was not a very good solution, since in the initial version it was a forest and tundra arsonist, you had to put homemade spark arresters, but here the ejector performance fell with the chances of engine overheating.

[RL]

The car is needed, but not young. Yes, and the people have already pampered. Give him more comfortable. And what is replacing? Serially. That would be in the civilian sector.

[VictorZhivilov]

The car is needed, but not young. Yes, and the people have already pampered. Give him more comfortable. And what is replacing? Serially. That would be in the civilian sector.

Well, in the world of capital ... Money determines the consumer properties of the product.

Bergmann 4010 R '04.2016 .XNUMX – present

[faterdom]

Interesting car.
I almost drowned such a lieutenant in a swamp. In a 30-degree frost, they plunged into the virgin snow, it was not noticeable. And then they were convinced that the swamp does not freeze in the frost. And that the lazy mechanical driver, having unscrewed the drainage hatch to drain the water, will never voluntarily put it back, so that the water drains automatically further. But in this case, a black smelly slurry began to fill the front end where the main clutch (not the engine) was located. The self-pulling log (there are mounting clamps on board for it) broke the chains and went into a quagmire. It came to the rescue that the day before the sappers had injected a heavy KRAZ with pontoons into the same swamp, and rode in a tracked vehicle to stretch out the wrecked tanks in order to pull it out. At the same time pulled out my GTT. Half an hour, the manure poured out of a hole in the bottom with an absent hatch, then drove off.
Another drawback I can name the design of the tracks, in which the hat of the finger looked outward, and from the inside there was a flare, which quickly wore off, and during the ride, the fingers began to crawl out of the track joints. If you hit a stump or a stone, you chase a finger, you will need to change it. Given the severity of the conditions where it is operated - not a buzz. Therefore, when moving, a fighter with a sledgehammer is always ready to jump out and touch fingers that come out every 700-1000 meters, or at least inspect.
And just that: they would make the hats of the fingers looking inward and weld the chipper so that the crawled out themselves would drive in when driving.
Nevertheless, for its model year the car is simply irreplaceable. Then another GT-SM appeared, lighter and faster, with engines from the GAZ -66.

[sergey_please]

This is still new, then grind, and normal)

[serg.shishkov2015]

In Russia, the word ATV is often equivalent to the word Life! Handsome man!

[another RUSICH]

Inside the comfort was not from the word at all. The motor in the cockpit, while warming the inner space, but the rumble was unbearable. It’s hard without an ear plug, but they were often lost, and it’s not convenient to put them in your ears with dirty hands. The view from the cockpit also left much to be desired. The antediluvian system of glass re-heating with heating threads quickly failed

[Forever so]

Floats like an ax. In Vilyue, the ice broke and the fish went into the water with all honest company. All ships have an engine either in the stern or in the middle, but here the designers went their own way. dviglo in the nose. Just for fun, how many lives did this coffin take ?? Although why be surprised. Something like yacht drawings for the people, the development of aviators in the early 90s. Well, a retractable dagger, it’s so flat as a crap board that does not allow the yacht to drift under the sail, so this board was pulled out of the yacht - TADAMMMM curtain from the bow. And when hitting an obstacle, it essentially cut the hull along from the dowel well.

[faterdom]

There is no engine in the nose - checked. He is between the front seats under a rectangular casing. Ahead is the main clutch.

[urman]

Well, of course there are drawbacks as they wrote in the comments.
Well, in the 70s in the Yamal tundra and they had no equal.
And how the guys brought water to them to spare parts to the rigs,
Although I was a kid, I had an idea how to go to the tundra without GLONAS and so on, and after all we went and found drilling rigs, just in the tundra where the stars are not always visible.
It’s just that I didn’t travel at the right time, just the thought of where I was going to FIG, there wasn’t any connection, it didn’t work, I found it.
And then waiting without it was useful when the connection appeared.

[urman]

Quote: faterdom

Ahead is the main clutch.

And by the way, a very useful thing is that passengers and the fur of the water easily communicate with each other, purely psychologically.
On the GTS are divided and the mechanic will not cry yes ...... do not be afraid Guys.