This Soviet Truck Did NOT Need DIESEL.

Ajouté : 2026-05-30

[00:00:00]Imagine a truck so big that it needs 12 axles just to keep from sinking into the pavement. A truck with 24 drive wheels.

[00:00:06]A truck that can turn diagonally as if the laws of physics were merely a suggestion, not an obligation. Now, imagine that this truck doesn't use diesel. It never has. Not a single liter in its entire life. And it's not a modern electric truck with lithium batteries and Silicon Valley presentations. It was built by the Soviet Union in 1983, right in the middle of the Cold War, without anyone outside the Soviet block knowing it existed. The Maz 7,97, the largest land transport vehicle ever to have its wheels touch asphalt in human history. And if you've never heard that name before, today that changes.

[00:00:43]What you're about to see in the next few minutes doesn't appear in Western transportation engineering textbooks.

[00:00:48]It's the story of a machine that solved a problem no one else in the world wanted to touch. a vehicle that combined aviation technology with ground transport in a way that left the best engineers of its time speechless. And at the end of this video, I'm going to reveal something that tech media never mention when they talk about the future of freight transport. The reason why this Soviet truck from 1983 had already intellectually solved a problem that Tesla presented as a revolutionary innovation 40 years later. Welcome to Trucks on the Road.

[00:01:20]In the early 1980s, the Soviet army had a very specific problem. Their new generation intercontinental ballistic missiles were too big, too heavy, and too important to be entrusted to the transporters that existed up to that point. They needed a ground vehicle capable of moving a load that no western engineer had even dared to design. The assignment went to the Minsk automobile plant, known throughout the Soviet block as Maz, a factory located in Belarus that already had experience building some of the largest transporters of its era. But this was different. This was a whole other level. The Soviet government did not provide a detailed set of specifications. They gave a number. The vehicle had to move more than 200 metric tons. To put that into perspective, 200 tons is equivalent to the weight of about 170 midsized cars stacked on top of each other in a single load.

[00:02:13]170 cars on a single vehicle that has to travel on real roads. The Maz engineers opened their notebooks and began to design something the world had never seen before. The first problem wasn't power. It was the transmission. A conventional truck has one engine. That engine produces power. That power travels through a shaft, passes through a gearbox, then through another shaft until it reaches the wheels. This works perfectly when you have four wheels, maybe eight, even 16. But with 24 driven wheels on a vehicle of that size and weight, mechanical transmission becomes a nightmare. Kilm of shafts, power distribution boxes, gears that distribute power to each axle independently. The weight of just that transmission would have exceeded the vehicle's load capacity. The truck wouldn't be able to carry anything because it would already be filled with its own internal mechanisms. It's like building a backpack so sturdy that it weighs more than what you can carry in it. The Soviet engineers looked at that problem, calculated it twice, and made a decision that no one in the West expected. They eliminated the mechanical transmission entirely. The answer that the MAC engineers found did not come from the world of land transportation.

[00:03:25]It came from aviation at the center of the vehicle. They installed a gas turbine, specifically a GTD-1,250 turbine derived from Soviet helicopter engines capable of producing 1,250 horsepower. Now, and this is where things get really interesting, that turbine doesn't drive the wheels directly. The turbine spins an electric generator. The generator produces electricity and that electricity powers an individual electric motor installed in each of the 24 wheels.

[00:03:54]Each wheel has its own motor, its own control, its own independent response.

[00:03:59]That means that when the MAZ7907 goes around a curve, it's not fighting against a central transmission pulling all the wheels at the same time. Each wheel does exactly what it needs to do at the precise moment with the exact amount of power required. A level of control that no conventional mechanical system could offer at that scale in that era. And if that principle sounds familiar to you, it's because it is. But we save that for the end. Now, the question that brought you this far, why doesn't the mass 7907 use diesel? The technical answer is straightforward. Its gas turbine was designed to run on aviation kerosene, the same fuel that commercial airplanes use when they refuel before a flight. And the reason isn't arbitrary. It's not that Soviet engineers had something personal against diesel. It's that gas turbines have a powertoweight ratio that no diesel engine can match at that scale. To produce, 1250 horsepower within a block compact enough to fit in that vehicle, you needed an aviation turbine. There was no viable alternative with the technology available at the time.

[00:05:03]Moreover, the Soviet army already had a logistical infrastructure for supplying kerosene spread throughout its entire military network. Aviation fuel was available in places where industrial diesel might not be. Now, let's talk about consumption because here the numbers show no mercy. The MA 7,97 Sturbine consumed around 750 L of kerosene per hour at full operation, 750 L per hour. For reference, a modern, efficient, heavyduty truck consumes between 40 and 60 L of diesel per hour on the highway. The Mazes 7907 guzzled aviation fuel at a rate that would have bankrupted any private transport company in the world in less than a week of operation. But the Soviet army wasn't thinking about profitability. It was thinking about capability and that changes all the calculations. Let's talk about the vehicle's numbers because the figures for the Mazy 7,97 do not seem real until you compare them to something you know. Total length 22 m and 9 cm.

[00:06:04]That's longer than two full city buses placed one behind the other with a bit of space between them. Width 3 m and 40 cm. It doesn't fit in a standard highway lane. It practically takes up two full lanes every time it moves on a public road. Empty weight, approximately 140 metric tons. No cargo, no extra passengers, no reserve fuel. Just the vehicle itself standing still already weighs 140 tons, 12 axles, 24 wheels.

[00:06:35]Each tire has a diameter greater than the height of most adults standing up.

[00:06:39]The maximum speed on the road was 40 kmh.

[00:06:43]Not because the turbine couldn't go faster, but because at that speed, with that weight, the asphalt starts to complain in ways that no public works department wants to deal with on a Monday morning. And to maneuver in tight spaces, the wheels of the MRZ7907 could turn independently in different configurations. The vehicle could move diagonally and it could execute a full turn in a space that was relatively small for its size. And to achieve this, the steering system was so complex that it required two people in the cabin. One drove the vehicle while the other managed the steering system for the rear axles. A truck that needs a co-driver just to make a turn at a corner. And here the story takes a turn that no one expects.

[00:07:25]Only two units of the Maz 7907 were ever built. Two, not because the project failed, not because the engineers made mistakes, but because the missile system they were meant to transport, the RT23 Moloetss, known in the west as the SS24 scalpel, ended up being deployed mainly on trains and in fixed underground silos, not on land transporters of this scale. The rail transporter program was more economical to operate, easier to conceal within the vast Soviet railway network, and logistically less complex to maintain. The Mazi 7907, for all its engineering brilliance, ended up being too large, too conspicuous on the road, and too fuel hungry to justify continuous full-scale operation.

[00:08:09]The two prototypes were used for extensive technical testing. After the collapse of the Soviet Union in 1991, one of the two vehicles was carefully preserved. Today, it is on permanent display at the Emma factory technical museum in Minsk, Bellarus. It can be seen, photographed. There are videos available and it remains to this day the largest wheeldriven electric land transport vehicle ever built in the entire history of humanity. There is nothing bigger, neither before nor since. All right, now comes what I promised at the beginning and it's not what you expect. When Elon Musk unveiled the Tesla Semi in November 2017, tech media around the world covered it as if they had just witnessed the birth of a new era. An electric truck with individual motors on each axle. No central mechanical transmission.

[00:08:58]Independent electric control for each wheel. Unprecedented energy efficiency.

[00:09:03]Headline after headline, article after article, the future of freight transport had arrived. What none of those headlines mentioned is that the engineers at the Minsk automobile plant had already solved that exact same problem back in 1983 with a 200 ton truck powered by a helicopter turbine and aviation kerosene. because the semiconductors of the time could not handle batteries at that scale. But the principle the principle was exactly the same. Individual electric traction per wheel is not an invention from Silicon Valley. It wasn't born in a presentation with stage lights and dramatic music.

[00:09:38]It's a Soviet engineering solution that arose from the same question Tesla faced decades later. How do you move an enormous load with maximum control over every point of contact with the ground?

[00:09:49]The answer in 1983, a turbine and kerosene. The answer in 2017, lithium batteries. The underlying logic was the same. And if the Soviet Union had had the battery technology we have today, the Maz 7907 would have been silent with controlled emissions and probably the largest electric truck the world has ever seen. Instead, what they built is something stranger and infinitely more interesting. The largest electric truck in history, powered by jet fuel, a walking contradiction. 22 m long and 140 tons. Soviet engineering has that uncomfortable quality of forcing you to reconsider what you thought you knew about who invented what and when. The Mazi 7,97 is not just a trivia fact to impress people at a dinner party. It's evidence that the most radical solutions don't always come from the most obvious places. that the most important technological breakthrough of a generation can end up buried behind an iron curtain classified as a military secret and never appear in any western engineering magazine. For decades, while the world applauded the first steps of the modern electric vehicle in a factory in Bellarus, they had already driven a 200 ton vehicle with 24 individual electric motors. There were no batteries, no inverters, no presentations with background music and applause from the audience. just engineers, an aviation turbine, and the biggest problem that no one else in the world wanted to solve. And in a warehouse in Minsk, that truck still exists, silent, gigantic, waiting for someone else to fully understand it.