Swedish S Tank - "Strv" is the Swedish military abbreviation for stridsvagn, Swedish for chariot and tank (literally battle chariot), and the 103 was the third tank in Swedish service and came with a 10 cm gun.
In Developed in the 1950s, it was the first post-World War II main battle tank to use a gas turbine engine to destroy a tank other than the German Kanonjagdadpanzer.
Swedish S Tank
By baking the tracks (similar to the 75 mm gun on the Frech Char B1 of the 1930s) and adjusting the hull suspension, it was fixed with a higher fixed gun.
Stridsvagn Strv 103 S Tank Swedish Unconventional Mbt 1/72 Non Diecast Easy Model
The result was a very low profile design with a focus on durability and a high level of protection for the crew. Strv 103s were the core of the Swedish armed forces from the 1960s to the 1990s, along with the Cturions, they were replaced by the Tiger 2 Stridsvagn 121 and Stridsvagn 122 variants.
While most unmanned armored fighting vehicles are classified as assault guns or tank destroyers, the Strv 103 is considered a tank because its assigned combat role is similar to that of other tanks in modern Swedish doctrine.
In the mid-1950s, the Ordnance Department of the Royal Swedish Army's Materiel Administration issued a contract to design a next-generation tank to replace the Cturions.
The Landswerk, Volvo and Bofors consortium responded by proposing a revival of an earlier indigenous heavy tank design known as the Kodame KRV, a 155 mm smoothbore gun mounted on a swinging turret. However, this configuration was considered too vulnerable compared to the chosen options: A ("Anglo-American"), which had to buy a 50-ton tank from England or the USA with high protection and medium mobility. Or option T ("Tysk-Fransk" or "German-France") is a 30-ton tank with low protection and good mobility. In 1956, the Swedish army administration proposed Sweden Sv Berge Alternativ S, a domestic alternative (the "S" stands for "Swedish").
S Stridsvagn 103 (s Tank) Swedish Main Battle Tank Official Press Photo 5x7
Studies of casualty reports from World War II and the Korean War show that the risk of being hit in combat is highly correlated with altitude, with turkeys accounting for more than half of all tank losses. Berge therefore decided that any new design should be as minimal as possible.
The radical solution was to eliminate the turret, which would eliminate a vulnerable target area and make the tank much lighter. In terms of overall height, the final design did not give the Strv 103 a significant advantage over its rival, the T-62. The second one is slightly higher with a height of 2.20 meters (7 ft 3 in), and the Tururum is 2.14 meters (7 ft 0 in) of Struve 103. On the other hand, the Swedish curios towered over the two at 2.94 meters. (9 ft 8 in) - 3.01 m (9 ft 11 in) tall. However, the T-62 compensated for its low profile with its extremely narrow interior and lack of gun recesses. Tanks are deployed behind dug-out trenches or at the base of hills to reduce the vehicle's exposure to shell fire. The amount of exposure in this firing position depends on the distance between the bottom of the gun barrel and the top of the turret or vehicle and the angle at which the vehicle can block the gun barrel. The Srv 103 has a very low flat height at the muzzle and sight profile for the Amy since the rubber tank is driven to compress and lift the barrel. The hull can also be lowered to 13 centimeters (5.1 inches) by adjusting the hinges.
His experience with the precision transmission of the French Char B1, the exceptional turning performance of the short-track assault rifles, and the combat performance of the German Stug and Jagdpanzer series inspired Berg's design to solve the problem with a fully automatic transmission and use. A system that rotates and folds the tank precisely under the control of the gun. The gun itself is fixed on the chest.
So it was impossible to use a stable gun. As a result, the tank could not move properly and fire at the same time, but the Swedish experience with Cturions, in order for tanks to reach an acceptable accuracy, they had to stop anyway, and in the wrong way.
Sweden Strv 103c Mbt
Other aspects of the tank were also quite radical. The mounted gun was a Bofors 105mm L74 barrel of 62 caliber, capable of using the same ammunition as the British Royal Ordnance L7 and equipped with an autoloader that allowed one round of fire every three seconds. Also to allow the team to be reduced to two; There was a gunner/driver and the commander (four men were used for most of the design of the day), one man could handle all the functions of the tank from the usual position due to the multiple controls. Of course this is only used in an emergency, as the workload is very heavy, but as well as providing additional redundancy, it allowed staff to switch between tasks as needed. The concept, demonstrated by practical tests, quickly showed that a two-man crew could not cope with several tasks not directly related to the handling of the tank: in particular, routine maintenance, bivouacing, track changes and reloading in the field. . Although the latter issue could be solved by increasing the number of staff in the firing squad, it was decided that a third staff member was necessary. A third man had to be assigned as rear driver/radio operator, facing the rear of the tank and fully equipped to drive, to achieve combat effectiveness. This allowed the tank to be driven backwards at forward speed, freeing the commander from the normal radio function, putting his frontal armor on the ground. Both the commander and the gunner/driver had the same attitude and control to fire the gun and drive the tank.
The tank was uniquely powered by two separate engines, a 240 horsepower (180 KW) Rolls-Royce K60 opposed piston diesel for slow cruising and purposeful propulsion of the tank, and a Boeing 502 300 horsepower turbine (220 kW) for greater speed or rough terrain Travel force. After more than 70 tanks were produced, the turbine was developed with a Caterpillar turbine producing 490 horsepower (370 kW) and was fitted to all previous vehicles. This is the first time the Gene turbine has been used in the production tank; The Soviet T-80 and US M1 Abrams would later be built with gas turbines for prime propulsion. The concept was interesting, Bofors was asked to build a prototype hangar/car, which it successfully completed.
The Strv 103 was fully amphibious. In 20 minutes, a buoy can be erected around the upper hull, and the tracks propel the tank through the water at 6 km/h (3.7 mph).
In each platoon, a tank was fitted with a dozer blade under the front hull, which was manually dropped from the outside of the tank and locked in place with pins and supports. The blade allowed him to perform simple construction tasks, such as digging pits for platoon fire pits, filling trenches for passage, and so on. After the work is completed, the blade is again placed by hand under the front frame and locked in place. When the 103C model was introduced, all tanks were equipped with bulldozer blades to speed up operations and increase the protection of the lower deck.
Tankfest 2011 Bovington Dorset Uk. S Tank Strv 103 Stock Photo
In the Riksdag (Swedish Parliament) defense plan for 1958 (Försvarsbeslut 1958 (F.B.58)), the provision Alternativ S was placed alongside the two foreign options, Alternativ A and Alternativ T. Although the domestic option is more descriptive, the report suggested Defense Committee "S" when it weighed the symbolic value of a domestic tank for an independent country, as well as its effect on Swedish industrial competition.
The Riksdag passed a formal resolution on the FB58 on 4 February 1958, and a series of contracts were awarded for two production prototypes, which were completed in 1961. 10 were ordered in 1960.
With minor modifications, the Alternativ S was adopted as the Stridsvagn 103 ("103" a third tank with a 10 cm caliber gun to be adopted in Swedish service). Full production began in 1967 and reached 290 in 1971. Changes included a new gyro-stabilized commander's cupola fitted with a 7.62 mm KSP 58 machine gun and improved frontal armour. A special rod armor grid can be fitted to the front to help defeat high-explosive anti-tank (HEAT) rounds; However, it was kept secret for many years and was only to be used in times of war.
Despite its design, the Strv 103 was intended for surplus operations. The armored brigades of the Swedish Army, led by Strv 103, were designated Anfalsbrigader (Assault Brigade) and tasked with counter-attacks.
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