Free Republic
Browse · Search
VetsCoR
Topics · Post Article

Skip to comments.

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.


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

U.S. Military History, Current Events and Veterans Issues

Where Duty, Honor and Country
are acknowledged, affirmed and commemorated.

Our Mission:

The FReeper Foxhole is dedicated to Veterans of our Nation's military forces and to others who are affected in their relationships with Veterans.

In the FReeper Foxhole, Veterans or their family members should feel free to address their specific circumstances or whatever issues concern them in an atmosphere of peace, understanding, brotherhood and support.

The FReeper Foxhole hopes to share with it's readers an open forum where we can learn about and discuss military history, military news and other topics of concern or interest to our readers be they Veteran's, Current Duty or anyone interested in what we have to offer.

If the Foxhole makes someone appreciate, even a little, what others have sacrificed for us, then it has accomplished one of it's missions.

We hope the Foxhole in some small way helps us to remember and honor those who came before us.

To read previous Foxhole threads or
to add the Foxhole to your sidebar,
click on the books below.

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
Navigation: use the links below to view more comments.
first previous 1-20 ... 41-6061-8081-100101-114 next last
To: snippy_about_it

Well, now it's afternoon, eastern time. Sure is hot here!


61 posted on 06/01/2004 12:06:35 PM PDT by Tax-chick (I'm not making this up.)
[ Post Reply | Private Reply | To 50 | View Replies]

To: All

Air Power
BAC 167 "Strikemaster"

Grandchild of the propeller-driven, taildragger "Hunting Percival Provost" training aircraft, and close sibling to the "Jet Provost" trainer, the two-seat, jet-propelled BAC 167 Strikemaster multi-role attack aircraft was deemed especially well-suited for advanced training, counterinsurgency, ground attack and reconnaissance functions.

A direct derivative of the "Jet Provost T Mk 5", the Strikemaster was modified with an uprated engine, wing hardpoints, a strengthened airframe, new communication and navigation gear, uprated ejection seats, a revised fuel system, and shortened landing gear.

Capable of operating from rough air strips, with dual ejection seats suitable even for low-altitude escape, it was widely used by the air forces of Botswana, Ecuador, Kenya, Kuwait, New Zealand, Oman, Saudi Arabia, Singapore, South Yemen and Sudan, and saw combat in Ecuador, Oman and South Yemen during its service life.

In its combat configuration the Strikemaster was fitted with two .303 machine guns, each with 525 rounds of ammunition. With eight hardpoints, the wings could carry an external load of 3,000 lbs. of bombs, rockets or Napalm.

Of the 16 Strikemasters acquired by the Royal New Zealand Air Force in 1972, use of the aircraft was reduced from 1981 onward, after cracking was discovered in the main wing structures. Turbulence and high usage were given as the probable cause. Considering the necessary re-winging of the aircraft to be an unwarrantable expense, the RNZAF retired them in 1994, replacing them with the Aermacchi MB339-CB. Similar problems with the Strikemaster led the air force of Ecuador to ground their fleet of the aircraft for months at a time while causes were identified and corrected, where possible.

The last new Strikemasters were built in 1984. In all, 146 were sold. While few, if any, remain in active military service, many have been given new lives as refurbished "warbirds" in the United Kingdom, United States and Australia. The side-by-side two-seater has a top speed of 518 mph and a maximum range of 1382 miles, making it an attractive sport aircraft for those who relish such performance

Specifications:
Manufacturer: British Aircraft Corporation (now British Aerospace)
Country of origin: United Kingdom
Type: Light attack warplane with advanced flying and armament training training capabilities
Crew: Two
Engine: One 3410-pound thrust Rolls-Royce Viper Mk 535 turbojet.
Number Built: 146
Number Still Airworthy: 15+
Internal Fuel: 439.5 US gal
Nicknames: Blunty (affectionate name within the Royal New Zealand Air Force)

Dimensions:
Weight: Empty 6,195 lbs., Max Takeoff 11,500 lbs.
Wing Span: 36ft. 10in.
Length: 34ft. 0in.
Height: 10ft. 2in.

Performance:
Maximum Speed: 518 mph
Range: 1,382 miles
Max climb: 5,300ft/min
Ceiling: 34,500ft

Armaments:
Two 7.62-mm (0.3-inch) FN machine guns,
Plus eight underwing hardpoints with up to 3,000 pounds of:
rockets, Napalm tanks,bombs, gun pods, reconnaissance pods, fuel tanks and/or gun cameras.








All information and photos Copyright of Warbird Alley and other websites
62 posted on 06/01/2004 12:12:38 PM PDT by Johnny Gage (God Bless our Firefighters, Police, EMS, responders, and God Bless our Veterans)
[ Post Reply | Private Reply | To 5 | View Replies]

To: All
Here's another thread regarding the voracity of the Polish people during WW-II.

Years in damp darkness - Polish Jews qho lived underground.

63 posted on 06/01/2004 12:21:00 PM PDT by Johnny Gage (God Bless our Firefighters, Police, EMS, responders, and God Bless our Veterans)
[ Post Reply | Private Reply | To 62 | View Replies]

To: colorado tanker

Afternoon CT.

The Press didn't report to the American people all that was going on during the Cold War. It wuld have made their soulmates look bad.


64 posted on 06/01/2004 12:40:24 PM PDT by SAMWolf (Now entering Iraq. Please set your clocks back 10 centuries.)
[ Post Reply | Private Reply | To 60 | View Replies]

To: Johnny Gage
Afternoon Johnny. Another one I'm not familiar with. Thankms for the "Strikemaster"


65 posted on 06/01/2004 12:44:08 PM PDT by SAMWolf (Now entering Iraq. Please set your clocks back 10 centuries.)
[ Post Reply | Private Reply | To 62 | View Replies]

To: Johnny Gage

Thanks for the link, Johnny. Incredible story.


66 posted on 06/01/2004 12:44:40 PM PDT by SAMWolf (Now entering Iraq. Please set your clocks back 10 centuries.)
[ Post Reply | Private Reply | To 63 | View Replies]

To: Samwise

LOL! Me too.


67 posted on 06/01/2004 12:53:42 PM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 59 | View Replies]

To: colorado tanker

What is amazing is these are people who lived during those years and still they don't get it. Grrr.

Good afternoon ct.


68 posted on 06/01/2004 12:54:45 PM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 60 | View Replies]

To: Tax-chick

Warming up here too, but not humid!


69 posted on 06/01/2004 12:56:13 PM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 61 | View Replies]

To: Johnny Gage

Wow, that was cool :-).


70 posted on 06/01/2004 1:01:54 PM PDT by Tax-chick (I'm not making this up.)
[ Post Reply | Private Reply | To 63 | View Replies]

To: Johnny Gage

Thanks for the link Johnny. Great story of survival.


71 posted on 06/01/2004 1:03:27 PM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 63 | View Replies]

To: colorado tanker; snippy_about_it




72 posted on 06/01/2004 1:11:36 PM PDT by Light Speed
[ Post Reply | Private Reply | To 60 | View Replies]

To: Light Speed

Hey! We've been ripped off!!


73 posted on 06/01/2004 1:14:49 PM PDT by SAMWolf (Now entering Iraq. Please set your clocks back 10 centuries.)
[ Post Reply | Private Reply | To 72 | View Replies]

To: snippy_about_it; SAMWolf
Yeah, if the lefties and the press had their way, Eastern Europe would still be ruled by the Sov's. The Black Book of Communism ought to be required reading so people know the monster we defeated.
74 posted on 06/01/2004 1:20:13 PM PDT by colorado tanker
[ Post Reply | Private Reply | To 68 | View Replies]

To: SAMWolf
came accross the photos while googling...have been doing some modelling fab today on my RC M1A1.

Came accross this on a slam John Kerry site:

A Special forces Democrat Veteran comments on John Kerry;

"John Kerry is capable of killing you 74 different ways in a single moment... using only his thumbs."

Public response:

"Yeah,...... but they all involve me laughing myself to death"

75 posted on 06/01/2004 1:25:32 PM PDT by Light Speed
[ Post Reply | Private Reply | To 73 | View Replies]

To: colorado tanker

Bunch of Castro worshippers. the last Communist hope left for them.


76 posted on 06/01/2004 1:31:46 PM PDT by SAMWolf (Now entering Iraq. Please set your clocks back 10 centuries.)
[ Post Reply | Private Reply | To 74 | View Replies]

To: Light Speed

I'm gonna choke on my own puke from listening to him.


77 posted on 06/01/2004 1:34:01 PM PDT by SAMWolf (Now entering Iraq. Please set your clocks back 10 centuries.)
[ Post Reply | Private Reply | To 75 | View Replies]

To: Light Speed

I can see 'em. I had to put the url in my browser to get them. Cool.


78 posted on 06/01/2004 1:40:58 PM PDT by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 72 | View Replies]

To: SAMWolf; snippy_about_it; colorado tanker





79 posted on 06/01/2004 2:21:14 PM PDT by Light Speed
[ Post Reply | Private Reply | To 72 | View Replies]

To: snippy_about_it




F-14 Tomcats

80 posted on 06/01/2004 2:52:37 PM PDT by Light Speed
[ Post Reply | Private Reply | To 78 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-20 ... 41-6061-8081-100101-114 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
VetsCoR
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson