International journal of mechanics, Issue 4, Volume 5, 2011, -8 p.The paper provides results of an analysis of character of smooth barrel bore wear of the T-72 tank, a combat vehicle that remains in service with a number of armed forces throughout the world. The BG20 MkII Gun Barrel Bore Gauge system purchased from Aeronautical & General Instruments Ltd in the UK was used to take measurement in the barrels of T-72 tank. Three types of the wear of leading part of the barrel bore were documented. There are also, in original way, mathematically formulated conditions of formation of a specific type of wear caused by firing the armour-piercing finstabilized discarding sabot 3BM-15 in the paper.Contents:
Introduction.
Devices for barrel bore measurement.
Capability of the pki-26 and bg-20 devices.
Barrel wear caused by sub-caliber.
Conclusion.
