The TMB-1,TMB-2, and TMSB were a round Soviet minimum metal anti-tank mines used during the Second World War. Both mines were similar in design, differing only in size, with the TMB-2 being the larger.
The mines bodies were constructed from asphalt impregnated cardboard with internal wooden slats for strengthening. A central glass pressure plug sat over an MV-5 pressure fuse. Downward force of about 26 pounds (115 newtons) causes the case to give way, triggering the mine.
The mine was normally employed in minefields mixed with metal-cased anti-tank mines. The mines were also easy to fit with anti-handling devices.
Specifications
| TMB-1 | TMB-2 | TMSB | |
|---|---|---|---|
| Diameter | 10 5&fras1;8 inches (270 mm) | 10 3&fras1;4 inches (270 mm) | 11 2&fras1;8 inches (290 mm) |
| Height | 5 1&fras1;4 inches (130 mm) | 6 inches (150 mm) | 6 5&fras1;8 inches (170 mm) |
| Weight | 14.5 lb (6.6 kg) | 15.4 lb (7.0 kg) | 17.6 lb (8.0 kg) |
| Explosive content | 11 lb (5.0 kg) of Amatol with a 50 gram booster charge. | 11 lb (5.0 kg) of Amatol with a 75 gram booster charge | 13 lb (5.9 kg) |