Abstract : �This research shows an application of Gyro and GPS
for self calibration of rocket launcher experiment in case of 2 degrees of freedom by PLC control. PLC program receive the data from self and target positions. It changes this data to command and control the
rocket launcher prototype. This research has 2 case studies; the first case, finding the correction and uncertainty of the rocket launcher for azimuth and elevation angles and send the data to PLC program for calibration, secondly, connecting Gyro and GPS with the systems then check both azimuth and elevation angles and test PLC program
for reading the data and commanding the rocket launcher.

Author :�Tawiwat V., Noppasit C., �Auttapoom L.