FIELD: sports equipment. SUBSTANCE: apparatus has tennis ball jump-back surface formed as shield which may be moved about longitudinal and transverse axes of rotation by means of three actuating cylinders. Cylinder stems are connected with shield surface through pivot joints. Shield is rotated about transverse axis by two actuating cylinders and one setting cylinder and about longitudinal axis by two setting cylinders and one actuating cylinder. Shield is returned to the initial position by means of springs symmetrically positioned on setting cylinder. EFFECT: increased efficiency by providing unpredictable tennis ball jump-back. 4 cl, 4 dwg
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