Absolute firepower requires absolute protection. This is the unspoken rule of armored vehicles written in the blood of tank crews on the battlefields of World War II. If you want to destroy fortifications and burn tanks, build a multi-tonon steel monster. But at the height of the Cold War, American engineers created a machine that broke all the laws of survival on the battlefield.

 It possessed monstrous destructive [music] power capable of reducing a concrete pillbox to dust or mowing down an advancing platoon in a fraction of a second. Its simultaneous six barrel salvo surpassed the power of any heavy tank of the time. At the same time, the machine itself weighed six times less than a tank, and its thin armor could barely withstand a machine [music] gun burst. This paradox had a deadly price.

The design demanded the impossible from the crew. After firing three volleys and emptying the ammunition load, the loader had to open the hatch, climb onto the roof of the hull, and standing at full height under enemy fire, manually reload each of the six red hot guns. The engineers had created the perfect one-shot killer, turning the reloading process into an act of pure suicide.

This is the story of the M50 ontos. A machine designed by a tractor factory, rejected with indignation by the regular army and already slated for the scrap heap. A weapon designed for the European planes, but which became the only salvation for the Marines in the bloodiest [music] urban hell of Vietnam.

 And to understand how this armored absurdity came into being in the first place, we need to go back to the cold beaches of Korea, where the US Army faced a problem for which there was no good solution. In the early 1950s, the United States Marine Corps faced a problem with no good solution. Korea demonstrated this with all its brutality.

 Marines were by their very nature paratroopers. People who came from the sea. Everything they took ashore had to fit in the hold of a landing craft, cross the surf zone, and roll onto a foreign beach under fire. This meant severe weight and size restrictions for any [music] piece of equipment. The M48 patent tank weighed 48 tons.

 It gave the Marines firepower and protection, but lifting it off the deck of a landing ship, and delivering it to shore was a complex logistical operation. And in a rapid deployment situation, this often meant that heavy armored vehicles simply did not make it to where they were needed. The Marines started the battle light and remained light until they encountered something armored in their path.

 The problem was simple. and [music] sounded almost like a question on an engineering entrance exam. A vehicle was needed that had firepower comparable to a heavy tank, but weighed several times less, could fit into a landing craft, amphibious transporter, or transport aircraft, and was capable of operating autonomously in the first most vulnerable hours of an amphibious operation.

 A conventional tank could not be light by definition because a heavy gun required a heavy hull to absorb the recoil and a heavy hull required a powerful engine and a powerful engine added even more tons. It was a vicious circle and it was impossible to break it [music] with standard means. But one technology changed the equation.

 The recoilless gun. The principle of the recoilless gun was deceptively simple. In a conventional gun, when fired, all the energy of the powder gases pushes the projectile forward. [music] And the recoil hits the carriage, and to withstand this recoil, the carriage must be massive and heavy. The recoilless gun solved this problem radically.

 Part of the gases was released through an open nozzle at the rear of the barrel. The gases flew backward, compensating for the recoil, and the gun remained in place. No recoil meant that no heavy carriage was needed, which meant [music] that a 106 mm caliber gun, which in a conventional design would weigh tons, became so light that [music] it could be mounted on a jeep.

 By the end of the 1950s, this was already being done. M40 recoilless guns were mounted on Jeeps. one at a time and used as mobile anti-tank [music] weapons, one gun per jeep. The solution worked, but it wasn’t enough. Then someone at Marine Corps headquarters asked the obvious question. If one such gun could be mounted on a jeep, why not mount six on a tracked platform? The contract to develop this platform was awarded to Alice Chalmer’s of Milwaukee, Wisconsin.

 The choice itself spoke volumes. Alice Chalmer’s was known throughout America, not [music] for weapons, but for tractors, combines, and industrial turbines. These were people who built equipment for plowing fields and grinding grain. And now they had to create a machine for a completely different kind of grinding. The result of their work appeared in the mid 1950s and looked as if the tractor factory had not fully understood the task.

 It was a small tracked platform with a low squat body on which six long barrels were mounted, three on each side sticking out like the quills of an angry porcupine. The machine weighed 8 1/2 tons, which was almost six times less than a patent tank. And yet it carried firepower that in a single volley exceeded everything an average tank could deliver in a minute of firing.

 The crew consisted of three people, a driver mechanic, a commander, and a loader. The armor was minimal from 6 to 13 mm, just enough to stop a shrapnel or rifle bullet and not a millimeter more. It was named the M50 ontos, a philosophical term for a machine that had nothing philosophical about it, but had six barrels and an absolute readiness to die after the first volley.

 In 1956, the Marine Corps adopted it. The Army considered it, then refused. However, even the Marine Corps treated the Anttos with a coolness that over the years increasingly resembled indifference. The Alice Jalmer’s factory produced about 300 machines, and by the early 60s, they had already begun to be quietly written off.

 It seemed that the history of this strange weapon would end as in gloriously as it had begun, somewhere in the backyards of a military base under a layer of rust and oblivion. No one knew then that in a few years the Antos would end up in a place where all its shortcomings would suddenly become irrelevant, and the only thing that would matter would be its six barrels and its readiness to fire first.

To understand what the Antos really was, you have to forget the word tank. A tank is a balance between firepower, armor, and mobility. Antos threw two of the three elements out of this equation and put everything on one, firepower. The entire machine from the [music] tracks to the tips of the barrels was subordinated to a single task to deliver the maximum amount of destructive [music] energy to the target in the minimum amount of time.

 Everything else, crew protection, ammunition supply, comfort, maintainability was sacrificed for this single function. The six M40 guns could fire one at a time in pairs or all six at once. And the gunner himself chose how much destruction [music] he needed at any given moment. But the main trick was the aiming system.

 Each barrel was equipped with a 12.7 mm caliber sighting rifle that fired a special tracer cartridge with ballistics similar to those of the main projectile. The gunner first fired the sighting rifle. If the tracer hit the target, he would press the trigger of the main gun, knowing that the shell would go to the same place.

 It was a brilliantly simple system that required neither complex optics nor a ballistic calculator. He saw the tracer flash on the target, pressed the button, [clears throat] and the target was gone. But Anttos’s real reputation was built not on the cumulative anti-tank [music] shells for which it was designed, but on ammunition that appeared later already in Vietnam.

 The Beehive canister shell did not contain explosives in the usual sense of the term. Instead, the shell was packed with thousands of small steel darts, each the size of a nail. When fired, the shell opened and these [music] darts flew out in a dense cone, expanding with distance, covering everything in front of the weapon with a solid steel broom.

 Six barrels with canister shells turned the Antos into exactly what it would later be called, a six barrel shotgun the size of a car. All this magnificence [music] came at a price, and a high one at that. The body of the vehicle, the one in which three people sat, was protected by steel 6 to 13 mm thick.

 To understand the scale, a large caliber 12.7 mm machine gun, the standard weaponry of any armored personnel carrier of that time, could riddle the Antos’s side from combat range. A rocket propelled grenade from a handheld grenade launcher didn’t even notice this armor. The crew of three was squeezed into a space where a large man couldn’t turn his shoulders.

 [music] And the only thing standing between them and the enemy was speed and the hope that the enemy wouldn’t have time to fire first. But even the thin armor was not the main problem. The main problem was reloading. The design of the recoilless gun required that the brereech, that is the part where the shell is inserted, remain [music] open at the rear so that the gases would have nowhere to escape to compensate for the recoil.

 This meant that the breaches of all six guns were located [music] outside the armored hull. It was physically impossible to load them from inside the vehicle. After each volley, the loader opened the top hatch, climbed onto the hull, and began his work, opening the brereech, removing the shell casing, inserting a new shell, and closing the brereech.

 Six guns, six times, out in the open, standing on the armor with his back to the enemy. The entire ammunition load, 18 shells, allowed him to do this exactly twice. Three volleys and an empty vehicle. The United States Army assessed all of these qualities and politely declined. For regular armored forces, [music] the Antos was absurd, too fragile, too dependent on infantry cover, too vulnerable between volleys.

 Only the Marines, accustomed to fighting with what they had, not what they wanted, accepted this vehicle into service. However, they did so without much enthusiasm. By 1965, when the first Anttos vehicles arrived in Vietnam with units of the Third Marine Division, this machine was already considered a relic of a bygone era.

 It was designed to stop Soviet tank columns [music] on the plains of Europe. There were no Soviet tanks in Vietnam. It seemed that the Antos had no business being there. On January 31st, 1968, on the night of the Vietnamese New Year, Tet, the North Vietnamese Army, and Vietkong fighters simultaneously attacked dozens of cities and military bases throughout South Vietnam.

This was the Tet offensive, and its bloodiest episode was the capture of Hugh, the ancient imperial capital on the banks of [music] the Perfume River. >> [snorts] >> Thousands of North Vietnamese soldiers infiltrated the city, occupied the citadel, a medieval fortress with stone walls several meters thick, and turned residential neighborhoods into a network of fortified positions.

 The Marines were ordered to recapture the city. Block by block, house by house, Hugh became a nightmare that no one was prepared [music] for. The M48 patent tanks, the Marines main [music] striking force, proved to be a trap for their own crews. Too wide for the narrow streets, too tall, too slow to turn. Grenade launchers fired from upper windows and behind garden walls, and the 48 ton machine burned as readily as any other.

The infantry could only advance under heavy [music] fire cover, but the heavy fire couldn’t get where it needed to go. And then the onto rolled out onto the streets. Small, low, and [music] narrow. They passed where Patton got stuck. The driver accelerated the vehicle down the street, stopped.

 The gunner caught the target with a tracer rifle, and [music] six barrels fired simultaneously. High explosive shells brought down entire building [music] facades, opening up enemy positions like a tin can. Canister shells swept the gunners out of alleys and doorways with a steel rain that neither walls nor sandbags could protect against.

One volley and the Marines advanced on what a second ago had been a fortified position and now was a pile of broken bricks. Then the entos backed up, turned the corner, and the loader climbed onto the armor to reload the barrels while the infantry covered him with fire. He fired and ran away.

 Shut and scoot, as the Marines themselves called it. The machine designed for tank duels on open planes found its true calling in the medieval ruins of a Vietnamese city. In Ho, the Antos did what no one else could. It broke into the confined space of urban combat, delivered a crushing blow, and disappeared before the enemy could respond.

 The Marines, who had recently mocked the small, ugly box, now demanded it for every operation. Its retirement was cancelled, at least until the shells ran out. But even Hugh could not override the laws of physics and arithmetic. The Enttos could win a battle, but it couldn’t win a war. 18 shells were used up in minutes of intense combat, and the machine that had just demolished walls was reduced to [music] an empty tin can that had to be dragged to the rear and reloaded with ammunition.

 The chassis, already unsuited to the tropics, fell apart [music] in the humid Vietnamese climate with a persistence worthy of better use. The transmission [music] was temperamental, the tracks wore out, and the repair crews cursed the machine, which had to be repaired after almost every sorty. The thin armor, tolerable in hitand-run tactics, became a death sentence when escape was not possible.

 A rocket propelled grenade left the crew no chance. At the same time, the world of weapons was moving forward. Towo and Dragon anti-tank guided missiles could hit armored vehicles from kilometers away with an accuracy that recoilless guns could not even dream of and without exposing the crew to fire during reloading.

 The very task for which the Antos was created was now being accomplished more easily, cheaply, and safely. Its moment of glory and hugh turned out to be its last argument. In 1969, the M50 Antos was finally removed from service with the Marine Corps. Quietly, without ceremony, like writing off a tool that has done its job and is no longer needed.

Of the nearly 300 vehicles built, most met an englorious end. They were not destroyed by the enemy. They were killed by time and the blowtorrches of their own repair battalions. The remaining examples were cut up for scrap metal, forever closing the era of crazy experiments. The few units that miraculously survived are now frozen in museum halls.

 Small [music] angular boxes with six blind barrels staring into the void, where there are no longer any enemies or allies. The Antos left no direct heirs. The era of heavy recoilless guns died with it, swept away by the advent of smart missiles. Guided systems such as TOAO and Dragon learned to do the same thing from a distance of kilometers without forcing the crew to play Russian roulette every time they reloaded.

The concept changed, but the physics of war could not be fooled. The Marines [music] still needed enormous firepower capable of landing on the beach in the first wave. This need gave rise to new classes of light armored vehicles whose designs still [music] hint at the aggressive silhouette of the tractor monster.

 The shadow of the Antos turned [music] out to be much longer than its short combat path. Antos existence. A lofty term from Aristotle’s philosophy. Firmly welded to a steel box from a tractor factory. A machine that the regular army rejected with disdain. A weapon that the Marines planned to quietly write off before it even had a chance to smell gunpowder.

It was designed for an apocalyptic tank battle on the European plains that never happened. And it found its bloody immortality in the narrow alleys and ruined pagotas of Vietnam where no one expected it to appear. Three volleys, 18 shells. And the whole philosophy of survival condensed [music] into one brutal rule.

 Kill first because there will be no second chance. Perhaps this is the [music] main irony of the arms race. It is not engineers in bright offices who decide what technology should be like. It is not generals with pointers at beautiful staff maps. War itself does that. It rummages through arsenals, finds the most ridiculous discarded tool, squeezes it dry to the limit of human strength, and coldbloodedly throws it into the dust bin of history when the moment is lost.

The M50 ontos was just that. Not the best, not universal, just the only one possible in hell.