Posted on 06/08/2004 12:00:10 AM PDT by SAMWolf
|
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.
|
The Swedish S-Tank was developed through both a prototype and pre-production vehicle testing program in the early 1960s and reached the armored troops in mid 1967. It is probably one of the most unique AFV designs of the modern tank era, utilizing a number of different approaches to the primary problems of firepower, protection and mobility. Even though the S-Tank has been replaced in front line service by the German produced Leopard 2, the S-Tank is destined to be remembered as one of the most interesting AFV designs of the Cold War period. The S-Tank designers, lead by Sven Berge as the head of the tank design section of the Vehicle Division of the Swedish Army Ordnance, were interested in solving a number problems faced in AFV design sections in the world. First, they were driven to provide the lowest profile possible to decrease the probability of the AFV being sighted and hit by opponent forces. This required the removal of the traditional turret and mounting of the main weapon directly in the hull of the machine, reducing the total height to 1.9 meters. With this done, the next problem was aiming the now fixed weapon, and a complicated system of steering and suspension were developed to allow the entire vehicle to aim at a target. With a stationary gun mount in the hull, an autoloader could be fitted and the typical fourth crew member/loader could be eliminated entirely, reducing the crew to three. Finally, by placing the tank engine(s) in the front of the AFV, extra protection of the vulnerable frontal arc could be increased. The results of this planning are shown in this sketch of the prototype tank, similar in most respects to production vehicles from A to C models. The driver/gunner's seat is located to the left in the hull with the radio operator directly behind him and facing the rear. To the right in the hull is the commander with a revolving cupola over head. His seat is slightly elevated above the other crew members to better use the cupola. The main gun tube effectively divides the fighting compartment in half, ending with the breech at the rear of the tank. Both driver/gunner and commander have controls for driving and aiming/shooting the weapons, the commander's controls over-ride the driver/gunner. The gun is manufactured by Bofors and is a L74 105mm weapon very similar to the British L7 gun fitted to the Centurion, also used by the Swedish army in limited numbers at the time. This allowed the S-Tank to use the same ammo, although its gun tube is longer and therefore provides a higher velocity for the rounds which equates to better hitting power. It takes only 15 minutes to load the 25 rounds/bin by two soldiers, which is very quick in comparison to typical tanks of the time. The twin ammo storage bins feed the hydraulic auto-loader and the main weapon passes right through the tank, ending in the breech placed directly above and between the ammo bins. Spent casings are ejected through a small port on the back plate of the tank, which eliminates smoke buildup in the tank. The engine compartment access plates dominate the entire front armor slope (there are actually three plates to take up this space, one bolted up the center under the gun and two hinged hatches on either side). The fuel cells occupy the space outside the fighting compartment and under steel along both side sponsons. Both driver/gunner and commander are equipped with a unique control box for steering and firing the main gun. The radio operator also has rudimentary driving controls and the S-Tank can travel backwards just as well as forwards. The entire box pivots along the vertical axis, which in turn rotates the tank by hydrostatic steering. Rotating the hand grips (motorcycle style) elevates and depresses the hydro-pneumatic suspension and thus controls elevation of the weapon through vehicle tilt. The push buttons on the control are for loading and firing the main weapon and auxiliary MGs. The gun can fire 15 rounds per minute--typically one bin is filled with HE and smoke rounds and the other with AP. A Jungner OPS-1 combination periscope and sight is used for both the driver/gunner and commander with contains a unity magnification prismatic periscope with a wide 102 degree field of vision. This is combined with a binocular sight with X6, X10 or X18 magnification. The driver/gunner periscope is fixed in position but the commander's rotates with his powered cupola and is stabilized in elevation. The cupola also mounts four periscopes and there is one for the driver/gunner and two others facing the rear for the radio operator. The engine, or actually engines, are of two different types. On the left is a Rolls Royce K60 diesel and the Boeing 502-10MA gas turbine is on the right. Both are connected to a Volvo hydro-kinetic torque converter automatic transmission closest to us. The transmission has two forward and two reverse speeds, one of the forward selections is higher geared for road travel and the other is lower for cross country. The twin power plants were planned to allow the vehicle to cruise with the economic diesel pushing the AFV along and then, during periods of high power needs, the turbine is switched on. The gas turbine also can be used as a starting engine for the diesel during extreme cold weather and the twin engine idea also allows either one to be used during an emergency or failure of the other unit. The diesel is a 6-cylinder opposed-piston water-cooled two-stroke unit, which was developed to a British Army requirement (used for the FV432 APC and FV433 Abbot SPG) and develops 240bhp. The gas turbine (without heat exchanger) is compact and proven, being used in quantity by the US Navy where diesel/gas turbines do most of the heavy marine work. The turbine produces 330bhp, but provides more power than a piston engine for its size and weight. The large amount of air necessary for the turbine is ducted through large access gratings for both intake and exhaust at the left of the AFV (see the drawing above) while the diesel intake and exhaust are to the right. The second production series of the S-Tank, known as 103B has the original turbine replaced by a more powerful Boeing 553, develops 490bhp and has really improved the performance of the tank. Maximum speed was increased to 50km/h. The 103C currently in use has raplaced the original diesel with a Detroit Diesel D6V-53T, providing 300bhp. Along with the new diesel came a new three step automatic gear box and other changes.
|
Strv 103 weighs 39.7 tonnes and has a crew of three: commander, driver, also operating as gunner, and the radio operator, also function as driver when the tank is going in reverse. Maximum road speed is 50 kph. On-road and off road ranges are 390 and 150 km, respectively.
Stridsvagn 103C has recently been phased out and replaced by Stridsvagn 121 and 122 (Leopard 2).
ipmslondon.tripod.com
www.trackpads.com
de.academyhobby.com
afvid.topcities.com
www.foreningenp5.com
www.haaland.info
w1.500.telia.com
softland.com.pl
www.ifrance.com
www.army.lt
Sweden has never been afraid to follow its own path on defence matters, and nowhere is this more apparent than with the radical S-Tank, more officially known as the Strv 103. In essence a super self-propelled gun, the S-Tank was armed with a 105 mm gun mounted rigidly in an extraordinarily low, heavily sloped hull; in order to train the gun, the entire vehicle has to be moved both in traverse and elevation. Due to the extreme importance of mobility, the S-Tank was fitted with two engines, one an auxiliary gas turbine to provide emergency power. |
Who They Are: Operation: Stitches Of Love was started by the Mothers of two United States Marines stationed in Iraq.
What They Are Doing: We are gathering 12.5"x12.5" quilt squares from across the country and assembling the largest quilt ever produced. When completed we will take the quilt from state to state and gather even more squares.
Why They Are Doing This: We are building this quilt to rally support for the Coalition Forces in Iraq and to show the service members that they are not forgotten. We want the world to know Nothing will ever break the stitches that bind us together as a country.
Ideas to start a local project:
Obtain enough Red, White and Blue material (cloth) for a 12.5 x 12.5 quilt square.
If you have someone in your family that sews, make it a weekend project and invite neighbors to join you.
Consider this tribute as a project for your civic group, scouts, church or townhall group.
Locate an elementary school with an after school program in your neighborhood or locate an after school program in your neighborhood not attached to a school and ask if you could volunteer one or two afternoons and create some squares with the kids.
Invite some VFW posts to share your project in honor of their post.
Send us webmaster@patriotwatch.com for digital photos of in progress and finished project for various websites, OIFII.com and the media.
PDN is making this appeal in support of Operation: Stitches Of Love
Media Contact: Deborah Johns (916) 716-2749
Volunteers & Alternate Media: PDN (916) 448-1636
Your friends at PDN
Good night Snippy. I'm impressed by your ability to find mini-graphics of the subject tank. ;-)
I learned from one of the greatest scroungers around. :-)
1.9 meters is shorter than I am (193 cm or 6'4").
Front engine is the way to go.
Turns out the armor stinks. A more normal drive train and a sturmgeshutz type traverse and elevation would have lowered the rig maybe 6 to 9 inches and would have left weight for armor. A modern Hetzer would have been more practical.
Cool a thread on the ol "S" tank....
Last night shift bumperoooni for the next two weeks...YEAHHHH
Regards
alfa6 ;>}
Good morning, Snippy and everyone at the Foxhole.
Carbs, usless PC carb calories to start the day...yummy.
On This Day In History
Birthdates which occurred on June 08:
1625 Giovanni Domenico Cassini discovered 4 satellites of Saturn
1813 David D Porter US Admiral (Civil War)
1829 Sir John Everett Millais England, painter (Order of Release)
1847 Ida Sazton McKinley 1st lady
1867 Frank Lloyd Wright Richland Center, Wisc, master builder
1914 Joseph de Pietro US, 56kg weightlifter (Olympic-gold-1948)
1916 Francis Crick codiscovered DNA's structure (Nobel 1962)
1917 Byron R (Whizzer) White Ft Collins CO, NFLer/Supreme Court Justice
1918 Robert Preston Newton MA, actor (Music Man, Mame, Last Starfighter)
1925 Barbara Pierce Bush Rye NY, 1st lady (1989- )
1925 Eddie Gaedel 3'7" St Louis Browns pinch-hitter (he walked)
1929 Jerry Stiller Bkln NY, comedian/actor (Stiller & Meara, Hairspray)
1933 Joan Rivers Brooklyn, comedian (The Late Show, Hollywood Squares)
1937 Bruce McCandless II Boston, Cap USN/astronaut (STS 41B, STS-31)
1939 Herb Adderley Phila, NFL hall of famer (Packers, Cowboys)
1940 Nancy Sinatra Jersey City, singer, her boots were made for walkin'
1944 William Royce "Boz" Scaggs Dallas Tx, rocker (Steve Miller Band)
1950 Alex Van Halen drummer (Van Halen-Jump, 1984)
1958 Keenen Ivory Wayans comedian (In Living Color)
Hiya Sam. Interesting design concept.
ACK!!! I forgot to ping ya'll to #16.
Good morning PE. Thanks for the lovely Flag-o-gram.
Hope all is well with you and family.
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.