**7. Conclusion**

This chapter presented the optimization method for nap-of-the-earth flight operation using- the sensors. In the nap of the earth operation, if we took in to the deep look, the use of terrain awareness and warning system has drastically decreased the collision with ground or the obstacles, which occurred while on controlled flight. However, with the advanced- technological improvements and modern equipment, the accidents of collision are still happening.

The establishment of new systems and improving the existing ones may lead to prevent the accidents while flying at nap of the earth operation or at the low-level flying. Hence, the proper training to the pilot is mandatory to fly at the low altitude level with using the advanced equipment. Here in this project the terrain awareness and warning system taken for the safe flight operation. Further to this, different TAWS modes of operation and the explanation of mode selection in TAWS explained in detail. The MATLAB programming done for one mode of TAWS operation, the simulation of flight path for the excessive terrain closure rate from- the mode 2 operation of flight is determined, and the outputs gained for the nap of the earth- flights.-
