An inertial navigation system is provided. The system includes a sensor
block, an outer shell that substantially surrounds the sensor block and a
plurality of gas pads connected to the outer shell that float the sensor
block in gas creating a near frictionless environment to allow the sensor
block to rotate in all directions. Each of the plurality of gas pads is
adapted to receive pressurized gas. The outer shell and the sensor block
are separated by a gap created by the pressurized gas at each pad.