The Strv 103C is a Main Battle Tank and the final production variant of the Swedish S-tank, a turretless design that aimed the hull to aim the gun and entered service in the 1960s. The 103C modernisation added a turbine auxiliary engine and improved suspension for better mobility. It is a tracked vehicle weighing 42.5 tonnes with a crew of three — driver, commander, and a third crewman — and uses active suspension for pitch control. The combined 6V53T and Caterpillar 553 turbine powerplant delivers 780 horsepower (18.35 hp/t), giving 49 km/h forward and 44 km/h reverse with neutral steering.
The fixed 105 mm L74 gun is fired from the driver’s position and is fed from a 50-round ready supply; a coaxial 7.62mm ksp 58 and a second ksp 58 in the commander’s cupola provide close defence. The vehicle has a stabilizer and smoke grenades; the driver’s sight offers 6x, 10x, and 18x magnification with a laser rangefinder.
This vehicle features a single addon: 105 mm L74 (m/80). The 105 mm L74 (m/80) addon costs 2,000 points and replaces the stock slpprj m/66 APDS with the significantly more capable slpprj m/80 APFSDS. This modern sub-caliber round boasts an extra 65 mm of maximum penetration compared to the stock ammunition (increasing from 272 mm to 337 mm), transforming the already formidable Strv 103C into an even more lethal precision-fire platform.