120mm M830A1 Heat Round Wear Life Prediction
ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
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A wear life prediction is given for the US Armys M830A1 HEAT round used in the 120mm M256 XM360 cannons. Five predictions are required and provided for the fielding of the 120mm FCS MCS gun system. Four of these predictions are for the hot, basic ambient, cold, and severe cold round conditioning temperature cases. The fifth prediction is for the Ft. Knox mixture of these four round conditioning temperatures for the computer correction factor. The peak one-meter long condemning wear band position is the 1.9 to 2.6 meter band centered at about 2.2 meter from the rear face of the tube for the M256 and the XM360 cannons. Cumulative equivalent M830A1 HEAT round wear-life predictions are given at the peak wear band positions for the selected round conditioning temperatures and the Ft. Knox mix of these round conditioning temperatures. The M830A1 wear life predictions for the respective hot, basic ambient, cold, severe cold, and Ft. Knox mixture are 525, 750, 965, 1230, and 735 equivalent M830A1 rounds.