The ON-Track Drift Mount is essentially an electromechanical system intended for manual drift correction. The drift angle can be derived from streaming data from an IMU, digital compass or other heading input (GPS alone doesn’t provide heading unless you have a dual antenna system). If you have no other means of determining the drift, you should use the DriftCam that is provided with the system. The drift cam is a vertical camera and a screen showing the terrain. Simply manually rotate the mount until the terrain travels parallel to the edges of the screen to remove the drift and align the camera with the aircraft ground track. If you are using our FMS, the streaming data from an IMU, digital compass or other input, fundamental for capturing and processing airborne sensor data, can graphically be displayed on the screen of the
The system can also be utilized without the X-Track software if you have other means of determining the drift or if you attach the DriftCam that is provided with the system.
The leveling screws allow the user to lower and level the mount so as to be as low as possible above the airplane hole. The scanner can take advantage of the full range of correction (+/-30) degrees of drift if the sensor can see the entire footprint without seeing the edges of the hole.