[QUOTE=ArmySGT.;60108]Inertial Location system. These do not need GPS or Loran. Input where it is manually or start from an unknown. An inertial system can tell you your exact route, exact speed, and direction of travel (in degrees) so you can exactly retrace a route. An inertial system can tell you distance and degrees from any known point (forward observer) or from a stored waypoint. A ring laser gyro inside keeps it on track.
I always thought that is what the AutoNav was for. It was programed with the exact location of the bolt hole and the supply caches. Yes the road maps and water locations are probably WRONG, but THAT mountain over there has not moved in unknown MILLIONS of years.
My $0.02
Mike
|