Figure 8. ISO 8855 intermediate system
The ISO intermediate system is attached to the vehicle. The X- and Y-axes remain parallel to a
horizontal plane. The X-axis is also parallel to the vehicle’s heading when viewed from above.
Table 15. ISO 8855 intermediate system
X This is the forward direction of the vehicle, projected into the horizontal plane.
Z This is the vertical direction of the vehicle, pointing up.
OxTS vehicle frame
The OxTS vehicle frame is attached to the body of the vehicle. It is related to the INS
through the rotations in the Orientation page of NAVconfig. It can be changed while the
INS is running using the Quick Config tool of NAVdisplay. The definitions of the vehicle
frame are listed in Table 16 and shown in Figure 9.
Table 16. Vehicle frame definition