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2B1 “Oka” – The SPG that Broke Itself When Firing

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In 1957 the Soviets held their annual Victory Day parade on Red Square, celebrating the defeat of Nazi Germany in the great patriotic war. At this parade, foreign journalists, correspondents and photographers were shown a new type of Soviet vehicle, one with a 20 meter long barrel on the chassis of a T-10 heavy tank.
At the time many in the press listed this absurdly proportioned vehicle as a fake, a tool to instil fear and respect for Soviet military might. What they didn’t know was that this vehicle was anything but fake, it was the 2B1 “Oka”.
The 2B1 is a defining example of Soviet “flexing”. A 420 mm (16.5 inch) gun sat on top of an overburdened chassis – originally intended for the T-10 – that pretty much disassembled itself every time it fired.
Unsurprisingly, it wasn’t in service for very long.
 
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2B1 “Oka” – The SPG that Broke Itself When Firing

2B1-oka.jpg


In 1957 the Soviets held their annual Victory Day parade on Red Square, celebrating the defeat of Nazi Germany in the great patriotic war. At this parade, foreign journalists, correspondents and photographers were shown a new type of Soviet vehicle, one with a 20 meter long barrel on the chassis of a T-10 heavy tank.
At the time many in the press listed this absurdly proportioned vehicle as a fake, a tool to instil fear and respect for Soviet military might. What they didn’t know was that this vehicle was anything but fake, it was the 2B1 “Oka”.
The 2B1 is a defining example of Soviet “flexing”. A 420 mm (16.5 inch) gun sat on top of an overburdened chassis – originally intended for the T-10 – that pretty much disassembled itself every time it fired.
Unsurprisingly, it wasn’t in service for very long.

The Soviets seem to have a thing with artillery on tracks.

Grizz
 
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Lord Clive-class monitor
The Lord Clive-class monitor, sometimes referred to as the General Wolfe class, were ships designed for shore bombardment and were constructed for the Royal Navy during the First World War.
Design
The slow progress of the war led to the need for more shore bombardment ships and various schemes for using spare heavy guns were considered. Heavier guns such as 13.5-inch and 15-inch weapons had no available mountings so the main armament consisted of a single twin 12-inch (305 mm) gun turret taken from decommissioned Majestic-class pre-dreadnought battleships.

The ships were ordered after the Abercrombie class had begun building and the hull form was a near repeat of that design. Extra quick-firing artillery for protection from destroyers and torpedo boats was also fitted in most ships and consisted of up to four six-inch guns.

18-inch conversions
The stern of HMS Lord Clive; showing her BL 18 inch gun on its fixed mounting, November 1918

On board Lord Clive; her BL 18 inch gun is at its full elevation. November 1918
Three of the ships, HMS General Wolfe, Lord Clive and Prince Eugene, were to be converted to take the BL 18-inch guns that had originally been allocated to HMS Furious. The guns were mounted aft, permanently arranged to fire over the starboard beam. The mounting consisted of two massive side girders parallel to the barrel, between which the gun was slung. At the forward end was a support about which the gun could train in a limited arc, with a hydraulic cylinder providing ten degrees of traverse each side of the mounting center line. The gun was loaded at the fixed angle of 10 degrees, but firing was only allowed between 22 degrees and 45 degrees of elevation, to distribute the large firing forces evenly between the forward and after supports. The mounting was covered by a large non-traversing half-inch steel plate shield fixed to the deck.[1]

The enormous rounds and charges were transported to the gunhouse on a light railway fixed to the main deck. Work was completed on two of the ships but the end of World War I intervened before Prince Eugene was finished. Both of the converted ships saw action. The original 12-inch turret was left in place on them to maintain stability.

General Wolfe fired on a railway bridge at Snaeskerke, four miles (6 km) south of Ostend, Belgium, on 28 September 1918. The range of 36,000 yards (33 km) made this the greatest range at which a Royal Navy vessel has ever engaged an enemy target using guns.[citation needed] Lord Clive fired a mere four rounds with the replacement gun at enemy targets.

The guns used were as follows:[2]

The gun from the rear turret of Furious was to have been fitted to Prince Eugene;
The gun intended for the forward turret of Furious was fitted to General Wolfe;
The gun fitted to Lord Clive was a spare.
 
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When fired on the Furious, the 18" guns sheared rivets, broke loose lights and other fitting and shook paint off bulkheads. Ironic but not surprising that the Furious ended up as an aircraft carrier, just as the last of Yamato class did. The only ships to mount 18" guns apart from these monitors. You can see how life on the bridge must have been unpleasant in a following wind!
 
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Recruitment in Boane Mozambique, 1970.
Photo by Victor Pisteiro.

Seems to be the M937 Portuguese Mauser model as opposed to the M941.
 
When fired on the Furious, the 18" guns sheared rivets, broke loose lights and other fitting and shook paint off bulkheads. Ironic but not surprising that the Furious ended up as an aircraft carrier, just as the last of Yamato class did. The only ships to mount 18" guns apart from these monitors. You can see how life on the bridge must have been unpleasant in a following wind!

Without pushing the envelope, you can't make progress. :redface:

Grizz
 
Photos of the model Type VIIC U-96 made for the greatest submarine film of all time -- Das Boot

Sure wish someone would do a doc film on the makings.

Das Boot, The Background, Facts and Goofs
Jan 11, 2016 Joris Nieuwint, Guest Author

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In 1981, a film was released which is still cited as one of Germany’s greatest cinematic triumphs. It followed the exploits of U-96, a German submarine, based out of St. Nazaire, France, on the harrowing experience of U-Boat patrol. The film is, of course, Das Boot, and its incredible ability to capture the terrifying and suspense filled life of U-Boat crews has captivated viewers for decades.

The film, along with the book by the same name, was based on a true story, recorded by Lothar-Günther Buchheim. He joined the Kriegsmarine, the German Navy, in 1940, eventually becoming a propaganda officer, essentially a war correspondent.

The film, as Buchheim complained, was not always an accurate portrayal of U-Boat life. Rather than go scene by scene picking apart the movie, here are a few stories of U-Boat life from the man who served on U-96.

Periscope Attack
It is a calm, but foggy day in the Atlantic. U-96 is sailing along, bobbing in the choppy seas, the commander and Buccheim are sitting down to lunch, a brief break in the daily stress of U-boat life.

Suddenly a call comes down from the bridge “To the commander: masthead off the port bow!”

The commander sprints up to the bridge. He and the chief crowd onto the bridge tower, straining through binoculars to find their foe.

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They are puzzled. It appears to be a lone steamer, unescorted in the middle of the ocean. They estimate distance, direction, and speed, the latter by trying to match it. Their diesel engines strain, pushing the ship to its fastest and filling the entire ship with a dull roar as they plow through the choppy sea.

Satisfied with their readings, the commander orders an attack. The call goes out to clear the bridge, flood the tanks, and dive to periscope depth. The crew has been standing by, tensely waiting to hear the order. It echoes fore and aft, each man passing it down the line. The ship jumps to life. The diesel engines are secured, the electric motors hum to life and then the ship is quiet again.

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In the control room, the commander and chief hover over the hydroplane operators, watching dials, hand wheels, and gauges. The ventilators are turned off, and moisture builds up on every surface, including the men who are now drenched in sweat.

Periscope depth is achieved, The commander peers through the thin tube, with mirrors and magnifiers. A watch officer is constantly adjusting the torpedo’s guidance. Again, everyone is silent, tensely waiting for the commander’s orders.

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“Tubes 1 to 4, stand by for underwater firing. Flood tubes. Open torpedo doors!” The call, again, echoes through the ship. This time a response comes back. The order had been completed, all clear and ready for attack.

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The crew stands silently watching their leader move back and forth with the periscope. He swears. The ship is zigzagging, making it a difficult target. After minutes of waiting, finally, he has his opportunity. The call goes out.

“Tube 1!” A pause, the watch officer’s finger hovers just over the firing button. “Fire!”

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The sleek metal torpedo explodes out of the tube, speeding almost silently towards the ship. The commander calls for Tube 2. Now two torpedoes, parallel, are charging towards their target. Immediately the chief floods the tanks to compensate for the loss of weight; every kilogram counts when keeping the ship safely submerged.

They surface to survey the damage.

The lone steamer had been cut in two by the torpedoes, each half floating away from each other, the crew trying to get into lifeboats. Over the next 2 hours, the two halves slowly sank while the U-Boat crew watched.
 
Surviving a Depth Charge
A hydrophone sound is reported. Screws, turbine engine, likely a destroyer. The U-Boat dives and pulls away.

Surfacing, with the dark sky behind them, they determine that the destroyer, an American Wickes Class, is sitting near a destroyed ship, waiting for the sub to return. The U-Boat’s diesel motors start up.

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Suddenly the destroyer turns and approaches the submarine. They dive, holding still underwater.

The sub resurfaces after an hour. The destroyer is still by the wreck, silhouetted by the flames of burning fuel. The submarine sits stationary, silently watching from the shadows.

After 3 hours the sub dives again, attempting to finish off what is left of the steamer. The destroyer spots them and again heads straight for them.

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Alarm dive! The sub’s nose swings down into the murky depths of the Atlantic. They dive to 160 meters, then level off. Three explosions are heard overhead, then the destroyer’s propellers. The entire crew sits silently. Suddenly the propeller’s engines stop. They are sitting almost immediately above the submarine. Listening.

More depth charges, this time closer. Paint chips fall from the ceiling. The food bags and sausages hanging about the ship shake and sway back and forth as the vessel rocks. The commander orders evasive action. As the sub swerves, rises, falls, turns, and changes acceleration the destroyer continues to sweep overhead. The crew sits patiently, each explosion rattling them and their ship even more.

Sonar pings echo through the waves. The destroyer knows exactly where they are.

More depth charges. Everything goes black. The lights have been knocked out. A low call is heard “leakage above the water gauge,” and the control room erupts into a silent panic.

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The commander calms his crew with the simple word “Gentlemen!”

Leaks spurt out across the ship, the commander seems unfazed, but the crew grows nervous. They cannot pump out the water with the destroyer overhead. The noisy pumps would give away their position, and they would be immediately destroyed. All non-essential lights are turned off, to save battery power.

They sit silently and still waiting for more depth charges or the horrific crushing death of sinking to the bottom. Water is still coming in through the leaks.

The commander requests a bearing on the destroyer. No response.

Annoyed, he requests again. Still no response.

He realizes what it means. The soundman is not ignoring him; the destroyer has stopped. No sonar pings, no depth charges, no propeller noise. Just silence. The sub’s electric motors push it forward underwater for another half hour. The commander leans against the hull and relaxes. They survived.

These two stories help to give a more accurate picture of U-Boat life. Das Boot, while a terrific film and a great piece of drama, is just that. They had to sacrifice some accuracy for dramatic effect. The movie lasts between 150 and almost 300 minutes. It is almost impossible to condense the incredibly long, tense, and terrifying life of U-Boat combat into a picture.

The U-Boat war was one of long hours. Crews sat and waited, silently, until they were certain they were safe, their prey destroyed, or their pursuer gone.

I encourage everyone to read Das Boot, (The Boat) and U-Boot Krieg (U-Boat War) by Lother-Guenther Buccheim, on whose accounts the film Das Boot was based.
 
If I remember correctly, the loss rate on U-Boat crews was 75% or worse. Not even Bomber Command lost people at that rate.

If I live a good and decent life, God will never allow me to be reborn as anyone who wants anything to do with submarines. They look like an awful way to die with a bunch of friends.
 
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Guard sentry at the Governor's Palace, Macau (50s)
Referring, the sentinel belonged to the 2nd Hunter Battalion coming from Mozambique. Also referring to is the curiosity of the sentry being armed with an American Enfield cartridge rifle. 30-06 Springfield. These rifles were seized from Chinese nationalist soldiers who struck retreat in defeat to the Chinese Communist Army, gaining safe conduit through Macau on their way to Formosa island. In exchange, the nationalist soldiers handed over all the war material they took, including uniforms and vehicles. Much of the seized material was of American origin, the result of American assistance to China during the resistance war against the Japanese. Given that many of the English Enfield rifles in the Army showed great wear and tear, and many of these American rifles were in excellent condition, it led to the distribution of this weapon to military units and m Macau. · ·
 
If I remember correctly, the loss rate on U-Boat crews was 75% or worse. Not even Bomber Command lost people at that rate.

If I live a good and decent life, God will never allow me to be reborn as anyone who wants anything to do with submarines. They look like an awful way to die with a bunch of friends.



Maybe by the wars end, but I don't think it was always that high.

Agreed, what an awful way to perish and being in such closed in quarters. Hot bunking, one sh!tter, the smell...Yikes!!

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Still Subs have always fascinated me since a kid.

And "Das Boat" is one of my all time fav war flicks...
 
The political attitudes of the crew were of course nicely sanitized for modern tastes; the mockery of the political officer and playing "Tipperary" on the gramophone for example.

Those who want an accurate picture of the typical U-Boat man's thinking will read their memoirs, and then read between the lines.
 
Was on a Civil Air Patrol field trip from Florida to Wright Patterson AFB. The AF LT. who was our guide/liaison came running into the barracks where we were housed yelling 'Everybody out beside the runway quick!" Got us all out along the taxiway in time to see the last landing of the XB-70 when it was brought into Wright-Patterson to go to the AF Museum.
 
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CHASULE - TETE - MOZAMBIQUE
(Current Drone footage Close to site) https://youtu.be/gDeHKxCGQkM
SATURDAY - SEPTEMBER 30, 1972
IN THE DETACHMENT WITH THE SUSPICIOUS AND CURIOUS MONKEY
Estate Photo of: Fur Mil. Orlando G Rodrigues, (in the photo), CCAÇ 3569
CCA 3569 . Beira: Tete, Baué, Nazareno, Casula, Chimanbo and Ponte do Rio Révubué. They returned on August 30, 1974.
Photo kindly provided by the widow.
To: PORTUGUESE COLONIAL WAR 1961 - 1974
 
The Mascot is on a chain.

No matter how young they managed to get a Baboon baby, they were always wild. They would be friendly and cuddly, then without any warning sink their 3 cm fangs into you.

We avoided the wild ones as much as possible. Only shot them if there was no other alternative. Often, if you shot one, the others would go into attack mode or start throwing rocks at us.

They are lightning fast but can be deceivably docile.
 
If I remember correctly, the loss rate on U-Boat crews was 75% or worse. Not even Bomber Command lost people at that rate.

If I live a good and decent life, God will never allow me to be reborn as anyone who wants anything to do with submarines. They look like an awful way to die with a bunch of friends.

I can't remember whether he used the 75% figure or a higher one, but I remember reading one historian who claimed that the u-boats had the highest loss rate of any service in any country in WW II, including the Kamikazis.
 
The Mascot is on a chain.

No matter how young they managed to get a Baboon baby, they were always wild. They would be friendly and cuddly, then without any warning sink their 3 cm fangs into you.

We avoided the wild ones as much as possible. Only shot them if there was no other alternative. Often, if you shot one, the others would go into attack mode or start throwing rocks at us.

They are lightning fast but can be deceivably docile.

My father was fascinated with monkeys. His unit had one for a mascot. Anytime we went to a zoo he got a glazed look in his eyes at the monkeys.
 
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