The control unit 16 senses {HEAD ~ all the command} inputs from {TAIL ~ the driver} through the various vehicle control devices described above and computes the position, speed and direction of travel of the simulated vehicle in a simulated universe 
inputs from
The control unit 16 senses { HEAD ~ all the command } inputs from { TAIL ~ the driver } through the various vehicle control devices described above and computes the position , speed and direction of travel of the simulated vehicle in a simulated universe
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH