"Brief description of removable NIBT designed spurs
Eight spurs are attached per track. The foundation of the spur (fig. 1) is composed of ribbon steel. Its edges are bend, and have openings for a track pin. A spine is welded to the top of the ribbon, which improves traction.
The spur is connected to the tracks with an oversized track pin. The pin is affixed with a spring ring.
- The spurs are made from bent iron with a wave shape, which will be difficult to produce by the tank units themselves.
- The spurs are welded to the tracks, and are impossible to remove on good quality roads.
- Valentine tank tracks are sufficiently modern, and there were no complaints (especially in the summer) about their grip. However, proving grounds trials showed that in winter, Valentine III and Valentine VII tanks have insufficient grip on snow (especially packed) when tilted (10-12 degrees).
- The removable spurs developed and trialled at the NI proving grounds increase the maximum tilt (24-25 degrees).
- The spurs are simple to produce and install, and can be produced in the field. I consider it reasonable to recommend units to produce these spurs and use them depending on road conditions.
- The design of the spurs proposed by comrade Zaharenkov is unusable, as they demand more time and resources, make the track significantly heavier, and reduce the performance characteristics of the tank.