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The FReeper Foxhole's TreadHead Tuesday - The Soviet Su-76 - Mar. 1st, 2005
www.battlefield.ru ^ | Mark Jeremco

Posted on 02/28/2005 10:04:27 PM PST by SAMWolf



Lord,

Keep our Troops forever in Your care

Give them victory over the enemy...

Grant them a safe and swift return...

Bless those who mourn the lost.
.

FReepers from the Foxhole join in prayer
for all those serving their country at this time.


.................................................................. .................... ...........................................

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Soviet Su-76 Self-Propelled Gun




When the Red Army entered the Second World War, the Soviet Union did not have any mass-produced self-propelled guns that could be used both for close support of the infantry and in an anti-tank role. In the late 1930's, a very limited number of SU-5 self-propelled guns was built based on the chassis of the T-26 light tank, but they only had limited use during the occupation of Poland in 1939.


A pair of SU-76M are managing a street fighting. 1944. Note corpses of German soldiers on the road.


By summer 1941, this lack of a suitable self-propelled gun appeared so serious that in September of that year, the ZIS-30 self-propelled gun was born as a stop-gap measure. Built on the chassis of the "Komsomolets" armored prime mover, this vehicle had a short range, had too much weight, and had poor stability, but it could reliably defeat anything that the Panzerwaffe had, which redeemed all of its shortcomings. In this way, the Red Army was provided with inexpensive self-propelled guns.



In the 1930's, there were some successful attempts at developing self-propelled assault and anti-aircraft guns on the chassis of the mass-produced T-26 light tank, which led to the manufacture of several experimental vehicles.

The SU-76P



The final assembling of the SU-76P.


With the arrival of new tank models, the T-26s could theoretically be converted to self-propelled guns, but in reality, conversion was impossible due to great T-26 losses during the first months of the Great Patriotic War. It was also impossible to replace the T-26s with new tanks due to the fact that the tank factories were being evacuated to the Urals and to Siberia. However, in besieged Leningrad in 1941 to 1942, several small batches of SU-76P were manufactured. The SU-76P consisted of a 76 mm regimental field gun installed on a T-26 chassis with a circular field of fire, and it had no protection for the crew other than the gun's shield. But this vehicle was merely another stop-gap measure, as the besieged city had to make do with whatever equipment it had remaining inside the encirclement.



In autumn 1941, all tanks armed with 45 mm guns which fought on the Leningrad Front become useless against "soft" targets like infantry due to the lack of fragmentation and high-explosive ammunition. That's why the General Staff of the Leningrad Front asked the Ministry of Tank Industry (NKTP) to rearm existing BT and T-26 light tanks with the 76 mm KT Gun.

A new vehicle was developed and tested, and after successful testing, the General Staff of the Leningrad Frond ordered Factory #174 to start manufacturing the new self-propelled guns. This vehicle received the SU-76 designation, and from 1943, it was renamed the SU-76P (P - "polkovaya" - "regimental") to avoid confusion with the new self-propelled gun which had the same designation (see below).

The OSA-76 (OSU-76)



The OSA-76 self-propelled gun.


The SU-76P alone could not solve the Red Army's lack of self-propelled guns, and there were attempts to utilise the chassis of T-60/T-70 tanks, which were mass-produced in 1941 to 1943. In autumn 1941, the GAZ Factory began, on its own initiative, the development of a light self-propelled gun designated the SU-71. However, it never entered full-scale production. By July 1942, another self-propelled gun was developed: the OSA-76, which was based on the chassis of the T-60 tank.

That project was developed by an initiative of GAU, which involved the idea of installing all field artillery on self-propelled chassis. An "OSA" designation means "Obshevoiskovaya Samokhodhaya Artilleriya" (All-Purpose Self-Propelled Artillery). In fact, OSA does not belong to the SU-76 series, as it was rather an independent class of self-propelled guns. The whole OSA project resulted in the development of the following partially-armored vehicles:

  • the OSA-76 - a partially armored vehicle with a 76 mm self-propelled gun;
  • the OSA-57 - a partially armored vehicle with a 57 mm self-propelled antitank gun;
  • the OSA-23 - a partially armored vehicle with a 23 mm self-propelled antiaircraft gun;
  • the OSA-12 - a partially armored vehicle with a 12.7 mm self-propelled antiaircraft gun.

The OSA-76 was armed with the 76.2 mm Assault Gun ZIS-3Sh based on the 76.2 mm Divisional Gun ZIS-3. The vehicle had a very low weight - less than 3,500 kg. The GAZ-MM gasoline engine powered it. The chassis of the OSA-76 was the same as on the T-60/T-70 light tanks. It had a crew of three men, and the armor protection was 6 mm. The OSA-76 successfully passed all tests and was recommended for mass production, although it was ultimately never produced.

An attempt by Rumanian engineers to install a captured 76.2 mm F-22 gun on the chassis of a captured T-60 tank was more successful. Until the arrival of the German Pzkw IV Ausf G, they were the only means to reliably defeat Soviet medium and heavy tanks.

The Self-Propelled Gun of Factory #37



The experimental SPG of the factory #37.


This was a self-propelled gun of the SU-76 series. The development of this vehicle followed the NKAP order of March 3, 1942. By May 1942, the first experimental prototype was manufactured and sent to the proving grounds. However, neither the chassis nor the armament passed the trials. The construction of this vehicle was based on the chassis of T-60 light tank.

The SU-12 (SU-76)



The GAZ-71 inside the factory.


On October 19, 1942, the GKO issued Document #2429ss which ordered the GAZ Factory and Factory #38 to develop, to test, and to put into full-scale production a light SP gun, armed with the 76.2 mm Gun ZIS-3. The new vehicle was based on the chassis and engine of the T-70 tank, but with increased length, and an additional road wheel.

In November 1942, both factories showed their prototypes. Both vehicles were armed with the ZIS-3Sh ("Sh" means "shturmovaya" or "assault") gun. The GAZ project was named the GAZ-71, and Factory #38's project was named the SU-12. On December 9, 1942, after comparative trials, the GAZ-71 was recognized as "not conforming to existing battle requirements," and was "very unreliable;" and thus, further work was cancelled. The SU-12, however, was accepted for service under the name "SU-76 Self-Propelled Assault Gun." From January 1, 1943, mass production began.


The SU-12 self-propelled gun.


The designers put the two GAZ-202 engines parallel to one another instead of in-line as on the T-70 tank. Its fully-enclosed shielding was welded from 10 to 35 mm armor plates, the driver's compartment was located in the front of the vehicle in between the engines, while the superstructure housing the ZIS-3Sh gun was located in the rear.

The crew of three also had a DT machine-gun and personal firearms at its disposal. By the end of January 1943, it formed the first two self-propelled artillery regiments sent to the Volkhov front.

The SU-76M (SU-12M)



Refueling the SU-76M. Winter 1943-1944.


The shortcoming of the parallel engine placement in the SU-76 (SU-12) became apparent when it resulted in transmission malfunctions. The malfunctions were due to torsional vibrations which led to rapid breakdowns. The vibration peaked in second gear, which was the most overloaded gear. It was impossible to properly synchronize the two engines.


A SU-76 M fending its way among destroyed materials. Notice the casemate which overhangs the track on the left side of the vehicule


As a result of the experiences in the field, the production of SU-76 was halted on March 21st, 1943, after only 350 were produced. Due to the planned summer offensive, the GKO put a very strict time-frame to correct the defects. Already by May 17th, 1943, an updated SU-76M (SU-12M; M means "modernised") entered testing and by June of that year it entered production.


Soviet attack. Eastern Prussia. Spring 1945.


These vehicles had updated engines and transmissions, and used the old SU-76 hulls that were left over. Improvements included the introduction of spring clutches between the engines and the main gear, of a slipping clutch on the general shaft, and of engine shock absorbers. These items reduced, but did not eliminate, the likelihood of a malfunction. In May 1943, the production of the SU-76M began. All of those vehicles took part in the Battle of Kursk.



TOPICS: VetsCoR
KEYWORDS: armor; freeperfoxhole; russia; soviets; spg; su76; tanks; treadhead; veterans
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To: snippy_about_it; SAMWolf

Good morning to ya! Hope all is well in your neck of the woods. No rain for a few days makes me start to believe that this really may be "sunny California". Thanks for the pings!

Cheers!


41 posted on 03/01/2005 6:51:24 AM PST by SZonian (Tagline???? I don't need no stinkin' tagline!)
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To: SAMWolf
Good morning, Sam...yep, I LOATHE February...

"Slick and the DNC!!"
(To be sung to Janis Joplin's "Me and Bobby McGee")

Started back in Ninety-Two, feelin' all our pain...
Lib'ral's Dealin' Fear as Jaded as Left's Dreams!!
Medyuh tore Bush, Sr. down...Biased fer a Change...
Left told us all, "Cam'lot's Back in Ol' DeeCee!!"

Slick broke all The Rules...Lib'ral Press just said, "Fantastic!!"
Justice turned "Off"...plump interns spanked Slick's tool...yeah!
Weirdo Lefties cheerin' Slime...Right thought the Country'd lost its Mind!!
MUD FReeped every song Dem Leftists spew!!

Freep fer Justice just 'cuz it's the Right thing to do...
Nothin' ain't worth nothin', Country, if we can't FReep!! No no!!
And Feelin' Good is easy, Lord, oh, when you Sing Fer Truth!!
You know FReepin' goons is good fer Liberty...
Seek Justice fer Slick and the Dee-N-See!!

Fer the Clinton Arkancides and Osama bin Laden...
Yeah Willie shared the blame fer Ol' Waco!!
Slick committed Treason...took bribes from Chi-Com scum...
Yeah, c'mon Congress, Justice must be Bold!!

One day up in the Senate, Lo-ord, we let Slick slip away...
We had'im dead to Rights, but DemRATS denied it!!
Folks, we'll shame all our forefathers if we don't make Clinton pay....
If we don't make TraitorWillie do his time!!

Freedom's not fer Lib'ral worlds, 'cuz Power's Left's to lose!!
Power?! DemRATS, don' y'all wanna be FRee?!
Slick's feelin' good and sleazy, Lo-o-ord, help me sing my tunes!!
'Cuz FReepin' fools is Truth enuff fer me...umm-hmmm!!
Seek Justice fer Slick and the Dee-N-See!!...Yeah...

Law da da, law da daa, law da daa da daa da daa
Law da da da daa dadada RE-Impeach!! Yeah!!
Law li daa da daa daa, law da daa da daa
Law law law law daada Indict Willie-ah yeah

Law di da, ladida LAW dida LAW di daa, ladida LAW dida LAW di daa
Hey there, Willie, now now, Vile Tyranny...yeah!!
Lo lo LO lolo LO lo law, lololo LO lolo LO lolo LO lolo LO law law
Hey Slick Willie, now now, you shan't be FRee!!

Left, you act like you love him...this despicable CAD!!
Right said, "It ain't 'bout Slick's lovers...but Slick's Treason's BAD!!"
C'mon, hey Slick Willie boy, you set Osama FRee...yeah!!
Lo lo lord above, oh lord, my lord, oh lord, oh lord, above...oh!!
Hey, hey, hey, FReedom ain't FRee!!...NO!!

[Mudboy kickin' it on pie-anny] Mudboy Slim (Started 12/06/03...finished 2/26/05)

42 posted on 03/01/2005 6:51:36 AM PST by Mudboy Slim (Dubyuh knows that the Road to Peace is paved by FReedom for all Peoples!!)
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To: Samwise; SAMWolf
I blame the foxhole. I didn't used to want to blow things up or play with flamethrowers.

I blame my brothers. It's a big job being the oldest sibling and female with only brothers. Ya gotta try to keep ahead of 'em on everything. :-)

Now, I'm glad I came over here to the Foxhole and found my friends already here. :-)

43 posted on 03/01/2005 6:52:19 AM PST by Wneighbor
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To: Valin
1917 Dinah Shore Winchester TN, singer (See the USA in a Chevrolet)

Mash the Chevy

"See the DMZ,
In your APC,
America will send you free of charge....

44 posted on 03/01/2005 6:52:41 AM PST by SAMWolf (Now...witness the power of this *FULLY ARMED AND OPERATIONAL* Tagline!)
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To: Wneighbor

Happy birthday to your daughter.

Thank her husband for his service for us.


45 posted on 03/01/2005 6:54:05 AM PST by SAMWolf (Now...witness the power of this *FULLY ARMED AND OPERATIONAL* Tagline!)
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To: Wneighbor
two sportscar mama's in Hummers. We'd be major terrors on the freeways

Do you think we could get Mel Gibson to join us?

46 posted on 03/01/2005 6:55:26 AM PST by Samwise (On the Internet, nobody knows you're a dog.)
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To: Mudboy Slim

Wish I could hear ya sing that. :-)


47 posted on 03/01/2005 6:55:51 AM PST by Wneighbor
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To: msdrby

I hope elf-boy gets well soon.

48 posted on 03/01/2005 6:57:21 AM PST by SAMWolf (Now...witness the power of this *FULLY ARMED AND OPERATIONAL* Tagline!)
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To: Wneighbor; uncleshag
My Janis Joplin impression is a little rough, but I hope we can find a Lady FReeper with the voice to pull it off...thanks!!

FReegards...MUD

49 posted on 03/01/2005 6:57:48 AM PST by Mudboy Slim (Dubyuh knows that the Road to Peace is paved by FReedom for all Peoples!!)
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To: Samwise

So that means we're doing our job. :-)


50 posted on 03/01/2005 6:58:15 AM PST by SAMWolf (Now...witness the power of this *FULLY ARMED AND OPERATIONAL* Tagline!)
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To: SZonian

You got all our winter rain this year, we're worried about not enough snowpack this year.


51 posted on 03/01/2005 6:59:13 AM PST by SAMWolf (Now...witness the power of this *FULLY ARMED AND OPERATIONAL* Tagline!)
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To: SAMWolf

I will pass both those messages on, thankee sir!

son-in-law was letting daughter sleep in this morning when I called and blared out the happy birthday song in my can't carry a tune voice. hehehe.


52 posted on 03/01/2005 6:59:33 AM PST by Wneighbor
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To: Mudboy Slim
this despicable CAD

"Despicable" fits, I use other worda than "Cad" though. ;-)

53 posted on 03/01/2005 7:00:30 AM PST by SAMWolf (Now...witness the power of this *FULLY ARMED AND OPERATIONAL* Tagline!)
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To: Samwise
o you think we could get Mel Gibson to join us?

Oh now that could be fun. We could start a major crusade for the Christian right in America, we three. :-D

54 posted on 03/01/2005 7:00:46 AM PST by Wneighbor
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To: Wneighbor

We have a pretty good group here.

Welcome.


55 posted on 03/01/2005 7:01:35 AM PST by SAMWolf (Now...witness the power of this *FULLY ARMED AND OPERATIONAL* Tagline!)
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To: SAMWolf
"Cad" is just a portion of Slick's despicable character...I'll never forgive the scumbag fer his decision to massacre 78 innocent Americans at Waco!!

FReegards...MUD

56 posted on 03/01/2005 7:02:22 AM PST by Mudboy Slim (Dubyuh knows that the Road to Peace is paved by FReedom for all Peoples!!)
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To: Wneighbor

Sounds like me, I couldn't carry a tune if it had handles. Just ask Snippy, she has to listen to me "sing along" all the time.


57 posted on 03/01/2005 7:02:59 AM PST by SAMWolf (Now...witness the power of this *FULLY ARMED AND OPERATIONAL* Tagline!)
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To: Mudboy Slim
I'll never forgive the scumbag fer his decision to massacre 78 innocent Americans at Waco!!

Amen to that.

58 posted on 03/01/2005 7:03:49 AM PST by SAMWolf (Now...witness the power of this *FULLY ARMED AND OPERATIONAL* Tagline!)
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To: Wneighbor

He and I have come to an understanding. He has promised me that he will try new foods, and I promised him that I would never feed him anything I would not eat myself.

;-)

He ate a piece of cheese pizza for the first time at a birthday last month. I kinda made him eat it. Told him it was rude to not even try it, so he had to eat at least two big bites so as not to be rude. Of course, he liked it. goofball.

I thank you for the prayers this morning. When he woke up this morning, I got his clothes ready. He went to the restroom to brush his hair, and I found him on the floor clutching his tummy and ashen faced. I got him to take some pepto bismol, and drink some water. His face is looking better. I think he feels much better too.

He probably could go to school at this point, but I wanna keep him home... just in case.


59 posted on 03/01/2005 7:04:35 AM PST by msdrby (Freedom, by its nature, must be chosen and defended by its citizens.)
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To: Wneighbor

on my birthdays, my dad's sister always reminds me of my second birthday. Evidently, I woke up at the crack of dawn and ran around the house in my jammies singing at the top of my lungs, "happy dirthday to dawbeee..."


60 posted on 03/01/2005 7:10:47 AM PST by msdrby (Freedom, by its nature, must be chosen and defended by its citizens.)
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