Abstract: Three factors leading to the lower shooting accuracy for a tank moving at a high speed are analyzed based on the linear vibration of its chassis. The efects of the factors on the shooting accuracy are studied from the real test data. The research result shows that the lateral shooting deviation caused by the linear vibration of chassis is too small to reduce the shooting accuracy significantly. Although the linear vibration of chassis has some impact on the imaging quality of sighting telescope, it basically does not affect the sighting effect. Since the linear vibration of crew seat is larger and its ride comfort is poor, it is hard for the crew in the tank to precisely manipulate the sighting telescope, and then the sighting effect would be affected. Therefore, the influence of the linear vibration of tank chassis on the shooting accuracy is mainly through its impact on the ride comfort, and the ride comfort is an important reason of affecting on-the-move shooting accuracy.

Key words: ordnance science and technology, on-the-move shooting accuracy, ride comfort, linear vibration of chassis, tank and armored vehicle