Document ID: chunk:federal_register_of_legislation:F2015L02109:body:0:p19
Version: federal_register_of_legislation:F2015L02109
Segment Type: other
Provision Reference: 
Character Range: 56961–60249

seat cushion base and passing through the SCRP defined in paragraph 2.14. of this annex. The seat cushion reference line may be marked on the side of a seat cushion support structure and/or its position defined using an additional reference point. The projection of the seat cushion reference line to a vertical longitudinal plane is linear (i.e. straight).
2.13.                          "Seat cushion reference line angle" means the angle of the seat cushion reference line projection in a vertical longitudinal plane, relative to a level surface or horizontal reference plane.
2.14.                          "Seat cushion reference point" (SCRP) means the measurement point identified, placed or marked on the outboard side of a seat cushion support structure to record the longitudinal (fore/aft) and vertical travel of an adjustable seat cushion.
2.15.                          "Shoulder median plane" means a plane dividing the left or right (as applicable) shoulder clevis into symmetrical anterior/posterior sections. The shoulder median plane is perpendicular to the centreline of the shoulder pivot shaft and parallel to the shoulder load cell y-axis (or an equivalently oriented axis of a shoulder load cell structural replacement).
2.16.                          "Thigh (for dummy installation purposes)" refers to the distal upper leg flesh section of the test dummy between, but not including, the knee assembly and the pelvis flesh.
2.17.                          "Three-dimensional H-point machine" (3-D H machine) means the device used for the determination of manikin H-points and actual torso angles. This device is defined in Annex 5.
2.18.                          "Torso line" means the centreline of the probe of the 3-D H machine with the probe in the fully rearward position.
2.19.                          "Vehicle measuring attitude" means the position of the vehicle body as defined by the coordinates of at least three fiducial marks; sufficiently separated in the longitudinal (X), transverse (Y) and vertical (Z) axes of the vehicle reference coordinate system, to enable accurate alignment with the measurement axes of a coordinate measurement machine.
2.20.                          "Vehicle reference coordinate system" means an orthogonal coordinate system consisting of three axes; a longitudinal axis (X), a transverse axis (Y), and a vertical axis (Z).  X and Y are in the same horizontal plane and Z passes through the intersection of X and Y. The X-axis is parallel to the longitudinal centre plane of the vehicle.
2.21.                          "Vertical longitudinal plane" means a vertical plane, parallel to the vehicle longitudinal centreline.
2.22.                          "Vertical longitudinal zero plane" means a vertical longitudinal plane passing through the origin of the vehicle reference coordinate system.
2.23.                          "Vertical plane" means a vertical plane, not necessarily perpendicular or parallel to the vehicle longitudinal centreline.
2.24.                          "Vertical transverse plane" means a vertical plane, perpendicular to the vehicle longitudinal centreline.
2.25.                          "WS50M H-point" means the coordinate point located 20 mm longitudinally forward in the vehicle reference