Strv 103 main battle tank

The Swedish Strv (Stridsvagn) 103B, or S-tank, was a mid-1960s main battle tank (MBT) that had several unique design features.

The most obvious feature of the S-tank was the absence of a turret: Rather, it had a fixed 105-mm gun that was elevated by adjusting the track suspension and traversed by turning the entire tank. The lack of a turret provided a low silhouette. The gun was fired using an automatic loader, thus reducing the crew to three instead of the usual four in most...