155 mm

8

This saw the concept of protection promising American heavy tanks in March 1945
The concept of an articulated tank combat weight of 150 short (136 metric) tons
155-mm gun T7, which was supposed to be set on a prospective super-heavy tank
105-mm tank gun T5E1 was a typical armament of the American heavy tanks at the time
Column of Soviet heavy tanks is-3 on parade in Berlin on 7 September 1945. Within ten years, these tanks were a kind of benchmark for the designers of armored vehicles in the Western countries when developing their own war machines
The layout of a heavy tank Chrysler K. May 1946

Revamp the look of the Chrysler K for the authorship of Vsevolod Martynenko
The concept with the placement of the entire crew in the tower was very popular with American engineers in the 50-s and 60-ies. The first time it tested it, the Chrysler K

anonymous asked:

What is the biggest difference between the MI24 and the MI35? Advanced futa missiles?

Basically, the Mi-35 is the new designation for the current production/refurbished versions of the Hind made in the Russian Federation, which vary wildly depending on the model, from simple soviet-era models with slightly better armament, to completely redesigned machines that address the maneuverability problems of the earlier machines, their most glaring problem being that nasty habit of chopping their own tails of if jawing too har-

Wait, futa? Oh God dammit mate, I though I left this clear: Futas are the heavy +155 mm self-propelled guns!

Fucking hell anon, don’t waste my time like this. 

dresden-officer-of-t72  asked:

SCP-1555 is my favorite SCP. But would the rats live though a live firing of the artillery (I would love to help with this one if you want me to)

For this case, we will ignore the weight of the shell the mice are placed in when fired from SCP-1555, as it’s mass is not mentioned anywhere in the wiki.

  • The muzzle velocity of an M114 155 mm howitzer is 563 meters per second (or 1,847 feet per second). This is our initial speed.
  • SCP-1555-2 can contain between 5 and 16 mice.
  • The weight of a field mouse is around 90 grams.
  • The projectile lands 6 kilometers away from SCP-1555.
  • SCP-1555-2 ends it’s course onto the ground, so, the end speed is 0.

With these information, we can conclude that:

  • SCP 1555-2 stays in the air for about 10 second before hitting the ground, since it travels a distance of 6 kilometers at a speed 563 meters per second.
  • The total weight of SCP-1555-2 should range between 450 and 1440 grams (again, without counting the shell itself), as 90 x 5 = 450 and 90 x 16 = 1440.

With this, we can put the acceleration endured by the projectile at -5.74 g.

A human cannot survive an acceleration of more than 5 g. However, i sadly could not find a way to translate this into the weight of a group of mice to find out if they physically could have survived in a plain shell.

SCP-1555′s file does note that the mice are alive after the impact. This means that, even if the acceleration, and the impact itself, should have been enough to kill the mice, it is not the case.

So, if we assume that the impact would kill the mice, it is most likely that the shell contains mesures of protecting it’s tiny passenger, such as airbags and crumple zones.

- Mod Pasttell

The Centurion tank didn’t just turn from this

to this

It also led to things like

Centurion AVRE with its 165 mm demolition gun

Armor recovery vehicle

Bridge layer

25-pounder boxy SPG

7.2-inch howitzer boxy SPG

A tank destroyer that screams “we need to field this 120 mm gun ASAP”

A tank destroyer that might as well have a neon sign on it that says “we don’t like heavy tanks”…

…and its turreted cousin that makes the KV-2 look small.

And then one with a prototype turret…

…and the closely related Chieftain test bed.

Israeli modernization magic

“Israeli death tower” - @tanks-a-lot

Israeli space magic, four 290 mm ground-to-ground missiles because reasons

Israeli prototype SPG with 155 mm gun in a turret

And then South Africa managed to turn the Centurion into what is basically another tank

And then the Marksman AA system 

And then there are so many more that aren’t interesting enough to be on this list

Saying America’s military must draw from “the broadest possible pool of talent,” Defense Secretary Ash Carter said Thursday that women in the U.S. military – including the Army and Marines – can now serve in combat posts.

The process to open combat jobs to women began in January of 2013; in finishing that process, Carter acknowledged that in recent years, U.S. women have fought — and sometimes given their lives — in combat posts in Iraq and Afghanistan.

Pentagon Says Women Can Now Serve In Front-Line Ground Combat Positions

Photo: David Gilkey/NPR
Caption: Carolina Ortiz moves away from a 155 mm artillery piece after loading it during a live-fire exercise at the Marine base in Twentynine Palms, Calif.

February 25, 1916 - Fort Douaumont Falls to a Small German Raiding Party and One Very Determined German Engineer

Pictured - A broadsheet published in Germany illustrating the capture of Fort Douaumont.  Typically, it greatly over-dramatizes the affair.  However, it must have seemed unbelievable then (as it does now) that less than twenty soldiers could capture the most important French position at Verdun by themselves.  France would pay many times over for the capture of Doauaumont.

One of the greatest German hammer blows of World War One fell on February 25 at Verdun.  Fort Douaumont was one of the strongest fortresses in the world in 1916, if not the strongest.  First constructed in 1885, it had been modernized several times, most recently in 1913.  Considered impregnable, this mighty defensive work was in the shape of a polygon some quarter of a mile across, built out of reinforced concrete eight feet thick and covered over with several feet soil, looking in a way like an enormous anthill. Unlike the Belgian forts at Lieges, Douaumont was invincible even to the heaviest German siege guns. Closer to its northern point, there was a retractable turret containing a 75-mm field gun.  An even more powerful 155-mm gun was housed in a turret on the eastern side, and observation turrets jutted out from ever point.  Several machine guns were built into the fort’s sides to deal with infantry under the range of the guns.

If enemy infantry did make it close to the fort, they would have to cross two fields of barbed wire 30 yards deep on every side, then a row of eight-foot high steel spikes, and then a 24-foot deep dry moat.  Concrete galleries on the corners of the fort meant that the moat could be shot into from any side with machine-guns, pom-pom light cannons, and search light beams, and each of these galleries was connected to the fort’s center by long underground tunnels, so they could be reinforced regardless of enemy fire. Anyone who survived this would be forced to climb up the fort’s sloping glacis, where more machine guns would stand in his way.

The southwestern approach was defended by a bunker called the “Casemate de Bourges”, which contained two further 75-mm guns.  The back of the fort was also covered by guns from neighboring Fort Vaux. Meanwhile, the inside of the fort housed “a veritable subterranean city, connected by a labyrinth of corridors that would take a week to explore.”  Almost a full battalion of troops could house here, either for safety or to take part in the defense of the fort by popping up behind enemy infantry from underground tunnels, or by manning a number of concrete pillboxes.  A sign in large letting in the central corridor reminded soldiers of their duty: “RATHER BE BURIED UNDER THE RUINS OF THE FORT THAN SURRENDER”.

The built in artillery pieces were the fort’s real teeth.  For their time, they were quite advanced.  Forty-eight-ton counterweights raised them in steel armored turrets out of the earth to shoot at advancing forces, before returning back underground in case of enemy artillery.  Unfortunately, some of the guns in the concrete galleries and the Casemate de Bourges had been removed in 1915, but the two artillery turrets were still there, able to take a murderous toll on the enemy and nigh indestructible.

The Germans subjected Douaumont to artillery bombardment with massive 420-mm mortars, the same that had destroyed the Belgian forts at Lieges.  By the 25th, they figured the fort must have been badly knocked about in the very least.  In fact, it had taken no worse damage than having part of its name knocked off the entrance!

Douaumont loomed imposingly over the battlefield, comforting French soldiers and intimidating the Germans.  But on February 25, a German flag flew on top of it.  How had the Germans captured France’s strongest fort in one day?

The 24th Brandenburg Regiment was ordered to capture a wood 750 meters in front of Fort Douaumont on February 25.  Rushing forward, they found the battalion of Zouaves opposite them had fled, allowing them to push past their objective and take 1,200 meters of ground in twenty-five minutes.  On the far left of the Brandeburgers was a squad of pioneers commanded by Sergeant Kunze.  Kunze, a twenty-four year old Thuringian detailed to accompany the first wave of troops and help remove obstacles and barbed wire.

Kunze’s blood was up that morning.  In a captured blockhouse he had given first aid to a wounded French NCO, but when he left, the Frenchman remanned his machine gun and let off a burst of fire.  Kunze took out the ungrateful French soldier, then picked off a French sniper minutes later.  Now he looked up at Fort Douaumont, rising up before him terribly.  But while French machine guns chattered away on the fort’s flanks, the guns of the fort were largely silent, except for the 155-mm gun, which occasionally rose from its shelter to fire a few rounds. An idea entered the sergeant’s head: if his objectives were to clear obstacles, why not try to clear the greatest obstacle of all?  Without compunction he ordered his ten-man section to follow after him.

Kunze and his men cautiously started crossing the barbed wire - no shots fired at them yet.  In fact, the fort’s defenses had been left entirely unmanned!  There were only 56 French troops inside, elderly Territorials.  The highest ranker was an NCO named Charnot.

The German squad made it through the defenses, finding gaps made by artillery and making others with their wire cutters. Before long they were at the edge of the moat, puzzling how to get over it.  An artillery shell made up their mind, bursting nearby and toppling the surprised sergeant into the deep ditch.  Briefly stunned, he ordered the rest of his men to follow; all of them did, save a corporal convinced that his sergeant was out of his mind. 

The enterprising pioneers warily approached a French gun gallery.  The guns inside were silent, so they figured it was unmanned.  A steel door barred the entrance, but Kunze ordered them to form a human pyramid and hoist him on-top.  After collapsing a couple times into confused dog piles, the young pioneers eventually managed to boost their NCO up.  Now, however, the rest of them lost their nerve; all but two skedaddled for the rear. 

Kunze barely looked back.  Never hesitating, he found a tunnel entrance and descended into the pitch-black fort interior, his two loyal sapper in tow.  Coming to a fork, he told the duo to guard one branch while he went down the other.  Now he found a door behind which he heard gun firing.  Bursting open, he surprised a couple powder-blackened French gunners.  “Hände hoch!” he shouted with his Luger raised.  Before the French artillerymen had any idea what was going on, he hustled them out.  Kunze trained his gun on the prisoners and set them to walk before him, but when they came to an open courtyard, they bolted back into the labyrinthine tunnels.  Kunze sprinted after them but had no idea where he was going.  But as luck would have it, he stumbled onto most of the rest of the fort’s garrison in a storeroom, Charnot and twenty French reservists.  Kunze flashed his pistol again and told them to put their hands up, but realized that if they rushed him he would have no chance.  Thinking quickly, he slammed the storeroom door shut in their faces.  Luckily, it locked from the outside.

Somehow, one German pioneer sergeant had already managed to capture half of Fort Douaumont’s garrison.  Looking for the fort’s officers, he found instead now a kitchen set with several delicious looking meals! 

Briefly forgetting his duty, the sergeant sat down for a ravenous meal in front of a terrified, unarmed, and utterly confused French soldier who kept calling Kunze “mon capitaine”.

A this point two other German officers, entirely independent of each other, had made their way into the fort.  The first of them, Lieutenant Radtke, a reservist, similarly made his way to the fort with twenty men when he realized its guns were silent.  In fact, German shelling was the larger danger, forcing Radtke and his men to creep on all fours over the glacis.  Upon entering, Radtke captured his first bag of Frenchman, who explained the fort was almost deserted. 

Another German officer, forty-year old Captain Haupt, now made his appearance with portions of a company.  Gradually, all the threads became knitted together: Radtke and Haupt met up, and Kunze was re-discovered by his superior officer, Lieutenant Voight.  In the meantime, Kunze’s prisoners had escaped, but now they were rounded back up.  Poor old Chenot, the French NCO in command, was in despair when he saw the fort had been taken by barely fifty Germans.  A young German lieutenant named von Brandis also entered the fort at this time, and rounded up some more French. 

The Germans, for their part, could barely believe their eyes. The strongest fort in France had fallen to them without casualties worse than one sapper with a scraped knee.  Not a shot had been fired in defense of the world’s greatest bastion, which the Germans now held after a mere five days of battle. In fact, Haupt suspected that a time-bomb had been planted under the fort.  Just in case, poor Chenot and his men were kept prisoner right above the powder magazine. The Germans prepared to defend their prize, but no counter-attack came.  Douaumont had fallen.

German command went wild with jubilation.  Medals were given generously, but not quite fairly: Brandis, who was sent back to HQ to report, was given the Pour le Mérite, Germany’s highest award, along with Haupt.  Radtke was wounded the next day and unable to record his part in the feat, got nothing.  Kunze, who had played by far the greatest role, also received no reward.  It seems likely that the German military valued the aristocratic, stern young Brandis more than the thin Radtke who with his thin-rimmed glasses looked more shopkeeper than soldier, or the peasant Kunze.  Brandis became a favorite of the Crown Prince, and as fame went to his head he released a novel, The Stormers of Douaumont, which placed himself firmly in the limelight.   It was only in the thirties that Kunze and Radtke received belated recognition after research by historians confirmed their roles: Kunze, now a police officer, got a promotion to lieutenant. Radtke received an autographed photo of the deposed Crown Prince.  War is often unfair like that.

In this photo Haupt is at left and von Brandis at right