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The FReeper Foxhole's TreadHead Tuesday - The 7TP/7-Tonowy Polski Light Tank - June 1st, 2004
achtungpanzer.com ^

Posted on 06/01/2004 12:01:30 AM PDT 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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7TP / 7-Tonowy Polski Light Tank




In 1928, British Vickers-Armstrong designed the 6ton Tank Mark E and of which in 1931, Poland purchased 50 examples. 6ton Mark E was not accepted by the British Army but Vickers sold it along with a licence (in some cases) to Bolivia, Bulgaria, China, Estonia, Finland, Greece, Japan, Portugal, Romania, Russia (T-26 series) and Thailand (Siam). Two types Mark A and Mark B were purchased along with the licence. 16 Model A and 22 B were delived in 1932 and 1933, while the rest remained as payment for the licence or were delivered as spare parts. The twin turret Mark A was armed with two 7.92mm Hotchkiss wz.25 and in late 1930s rearmed with 7.92mm Browning wz.30 machine guns. Single turret Mark B was armed with 47mm Vickers-Armstrong gun and 7.92mm wz.30 machine gun. The main problem with 6ton Vickers was its Siddeley engine, which easily overheated. After examination in Poland, it was decided to modify Mark E and start the development of their own light tank by improving Mark E. New tank development program was designated as VAU-33 (Vickers-Armstrong-Ursus 33), either jw (single turret) or dw (twin turret).


7TPdw-1938.jpg


Polish designers attempted to modify original Vickers tanks as late as 1936, including various armament configurations in twin turret models. Polish designers also worked on replacing original Armstrong-Siddeley engine with licensed built Swiss Sauer diesel engine as well as on improving its armor protection. Experience gained during the work was used in the development of new Polish tank and Vickers tanks remained in service to the outbreak of war without major modifications (e.g. cooling system was improved). In 1934, the development of domestic light tank designated 7TP (PZInz.220) based on Vickers Mark E started.



In Spring of 1935, it was accepted for production and production of first 7TPdw with two small turrets, each armed with 7.92mm Browning wz.30 machine gun started. Other alternate armament was 13.2mm Browning wz.30 heavy machine gun mounted in one turret and 7.92mm Browning wz.30 machine gun in the other. Also considered was configuration with 37mm Puteaux SA 1918 gun in one of the turrets. 7TPdw was considered to be the temporary solution and only some 24 were produced, while the rest was finished as 7TPjw tanks. Early 7TPdw were mounted with turrets removed from 22 Vickers tanks in 1934, which were converted to single turret model.


7TP Light Tank, 1939


Next variant was to be armed with a single turret armed with a heavier gun. Various designs and prototypes were presented and armaments included: 20mm, 40mm, 47mm and 55mm guns. In late 1936, second variant 7TPjw was ready and entered production in late 1937. It mounted a single turret manufactured by Swedish Bofors, armed with 37mm Bofors anti-tank gun and one 7.92mm Browning machine gun. Vehicles produced from late 1938, were fitted with turret mounted storage bins to mount 2N/C radio equipment. Original 7TPdw were slowly being converted to jw variant and by September of 1939, only 16-24 were in service. All 16-24 were at the training centre near Warsaw and in September of 1939, took part in the defence of the city. In 1938/39, work on new 7TP started and two designs were made for new tank designated as 9TP Both variants were to have modified 7TPjw's turret, a new engine (Saurer CT1D / PZInz.155 diesel engine), strengthened suspension and wider tracks along with improved armor protection. First variant was to be uparmormed (up to 40mm) version of 7TP, while second had more angled front armor. Outbreak of war stopped any futher development of 7TP and 9TP.



In January 1937, Sweden became interested in purchasing or renting of single 7TPjw for testing purposes along with a purchase of 20 to 60 unarmed tanks and C7P tractors, but Polish side was not interested. In April of 1937, Bulgaria and Estonia were interested in purchasing 7TPjw tanks. Estonia wanted to buy 4 tanks, but Poland was willing to sell only 7TPdw tanks and it was planned to create a hybrid of 7TPjw hull mounted with Vickers turret armed with cannon. In November of 1937, Holand was interested in 7TP, but also no transaction took place. In 1938, technical documentation for 7TPjw was send to Turkey in preparation for the transaction, which never took place. At the same time, Poland considered exporting 36 7TPjw tanks and Yugoslavia and Greece were both interested, but the transaction never took place.


Polish - VickersE-Twin


Overall from 1935 to 1939, 7TP was built by Panstwowe Zaklady Inzynierii (National Engineering Works) at Ursus near Warsaw, in only two main variants - jw (single turret) and dw (twin turret). Polish designers also developed light (artillery) tractor / troop carrier based on 7TP's chassis designated C7P. Production started in 1935 and first units received tractors in the same year. In 1937, plans were also made to produce self-propelled anti-aircraft tank based on 7TP armed with two 20mm FK-A wz.38 L/73.5 automatic cannons (used to rearm TKS tankettes). The entire project was cancelled in 1938 and all efforts were concentrated on production and modernization of Polish armored fighting vehicles. Also few special rail transport cars were made especially for 7TP tanks (similar to those made for Polish Renault FT-17 light tanks) to allow them to travel as part of armored trains.


First prototype of 7TP - VAU-33-2


In September of 1939, Polish Army had only 136 7TPs (24 dw, 97 jw and 11 jw produced in September of 1939 along with 4 prototypes made of regular plate), which equipped two Polish light tank battalions (each with 49 tanks) and other units. During Polish Campaign, 7TP proved to be a match for any German Panzer. Some captured 7TPs were painted in Panzergrau with German markings and were presented during the victory parade in Warsaw on October 8, 1939. Later on captured 7TPs were used for internal policing duties and later on as artillery tractors. Number of captured 7TP tanks, especially jw variants was tested by the Soviets at Kubinka in 1939/40. Today, parts of 7TPjw light tank can seen in the Museum of Polish Armored Forces in Warsaw, Poland.







TOPICS: VetsCoR
KEYWORDS: 7tp; armor; freeperfoxhole; poland; tanks; treadhead; veterans; vickers; wwii
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To: bentfeather

Good nite feather.


101 posted on 06/01/2004 10:27:43 PM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: PhilDragoo

Thanks Phil. Great memorandum.


102 posted on 06/01/2004 10:31:00 PM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: Professional Engineer

Abigail sure looks comfy!


103 posted on 06/01/2004 10:31:44 PM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: Light Speed

LOL. Poor polar bear!


104 posted on 06/01/2004 10:32:16 PM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: Light Speed

LOL. I saw this one when bkwells sent it to me while they were fighting for OIF.


105 posted on 06/01/2004 10:34:07 PM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: bentfeather

Good night Feather


106 posted on 06/01/2004 10:40:39 PM PDT by SAMWolf (Now entering Iraq. Please set your clocks back 10 centuries.)
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To: Light Speed

LOL! PB's revenge.


107 posted on 06/01/2004 10:41:32 PM PDT by SAMWolf (Now entering Iraq. Please set your clocks back 10 centuries.)
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To: SAMWolf
Hi Sam

There's been some great D-Day programing on History channel and PBS...VCR has been busy.

It seems so long ago..yet as per history..just blink...yesterday.

The SS were just as crazed in the west as in the East.
A Canadian documentary noted the numbers of executed -captured soldiers after D-day 135+...one in the chest..one in the head.
*Panzer Meyers divison.

IKE with Tom Selleck was O.K.....De Gaul..what a peice of $....

Earlier...at Casablanca.....De Gaul was causing trouble..tantrauming..sulking.
Winston tried and tried to get him to co-operate.
President Roosevelt humilated De Gaul infront of the press corp,when asked.."Where is De Gaul"?
Leaning over to Winston..and saying aloud so the press corp could hear..Rossevelt said..."Yes indeed...When is She going to get here!" : )

Chirac..Vellipen.....blocks of stinky cheese like De Gaul.

The price the allies paid to free Europe.....and where are they today?
What disses me....is that Euro Banking houses..Insurance/re-insurance are making a killing off the oil/gas concessions they are party too.
even though Frances Total Fina has lost some concessions in Iraq as fields go..they are throwing in cash on the Inter *Stan pipelines to the Orient..making coin off Kazakhstan..the Turks etc in the Caspian.

Its puke city..these weasels claim the entire U.S. presence is illegitimate..yet they are riding on the back of the U.S. presence and oil/engineering Corporations.

French troops are in Afghanistan..and despite their wretched Gov..they are a smart contingent....AT least the Foreign Legions Legacy lives despite its sleaze gov at home.
They could be in Iraq..but its a better to be like De Gaul...just sicko.
Wonder if some of their soldiers are wretching at the disgrace that is their nations gov.
Poles..Gurkas..others in Iraq...no complaints..no kniving for favors....Honor and duty.

Some say....especially that weasel Kerry and Tubby Kennedy that....President Bush did not build a co-alition of the willing..that he cut Europe out in spite.

Thats a lie from the pit...many nations were offered an invite to participate...most just choose to play their vote in the U.N...toss a small amount of coin.

President Bush was right when he said...the U.N. is useless.


108 posted on 06/01/2004 11:45:23 PM PDT by Light Speed
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To: Light Speed

I thought Ike was pretty good too. They made Monty look like the pompous ass he was and De Gaul the arrogant POS he was. Why the US and England decided to include france as a full Ally and give them a piece of Germany after the war is beyond me. They Poles in the Warsaw ghetto and the Warsaw uprising held out longer than france did.


109 posted on 06/01/2004 11:59:44 PM PDT by SAMWolf (Now entering Iraq. Please set your clocks back 10 centuries.)
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To: PhilDragoo

BTTT!!!!!!!!


110 posted on 06/02/2004 3:07:24 AM PDT by E.G.C.
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To: GailA
Checking on a blog here in Tennessee I found this photo site with TONS of photos taken by one of our famed 101st in Iraq 101st Iraq photos

Cool. My kid sister was with the Screaming Eagles (or Puking Chickens)during Desert Storm.


111 posted on 06/02/2004 6:17:47 AM PDT by Professional Engineer (No can do. Abbreviate, contract, RunWordsTogetherIfYouMust. ~ John Robinson)
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To: Light Speed; SAMWolf
I thought Selleck was OK too. They were right on target with Monty and DeGaulle. I didn't like the hit they put on Patton. Patton was pompous, but he was loyal and not ungrateful.

Chirac is thoroughly corrupt. He only beat a corruption rap from his days as Mayor of Paris by using his power as President. It's no coincidence IMHO that our strongest opponents on Iraq and the strongest supporters of islamo-fascist states were the fascist and communist states of WWII - and I do mean to include France in that list.

112 posted on 06/02/2004 9:34:14 AM PDT by colorado tanker
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Comment #113 Removed by Moderator

To: Matthew Paul

Getting attacked from both borders by the Germans and the Soviets put the Poles in a tough position.


114 posted on 06/02/2004 10:33:20 AM PDT by SAMWolf (Be careful when playing under the anvil tree.)
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