Abstract: A motion platform (2) comprises a base portion (6) and an occupant carrier portion (4). The occupant carrier portion (4) is linearly moveable along, and rotationally moveable about, first, second, and third orthogonal axes. The base portion (6) comprises first, second, and third control pillars (16, 18, 20) each extend along the third axis with a predetermined height. The control pillars (16, 18, 20) are linearly moveable in a plane defined by the first and second axes and are mechanically constrained to move only in that plane. The occupant carrier portion (4) comprises first, second, and third guide portions (28, 30, 32) that are pivotally connected to the first, second, and third control pillars (16, 18, 20) respectively by a respective coupling member (22, 24, 26). Each of the guide portions (28 30, 32) is angled with respect to the plane defined by the first and second axes such that they are not parallel to the plane.

Abstract: A motion simulator (10) has a body tub (12) fixed on a carrier platform (14), the carrier platform being supported via motion control apparatus (52, 54, 56, 58), each having bearings which translate along an inclined path, the motion control apparatuses together providing six degrees of motion for the carrier platform.

Abstract: A motion simulator (10) has a body tub (12) fixed on a carrier platform (14), the carrier platform being supported via motion control apparatus (52, 54, 56, 58), each having bearings which translate along an inclined path, the motion control apparatuses together providing six degrees of motion for the carrier platform.

Abstract: Insulation-piercing fasteners are provided having a generally cylindrical shank, externally threaded along at least part of its length. The end portion of the shank is configure to engage an insulated electrical conductor and is formed with a hollowed end portion. The hollowed end portion has a generally cylindrical recess having a diameter less than the diameter of the shank. The wall of the hollowed end portion has at least one interruption. The width of the interruption is less than the maximum internal width of the hollowed end portion.