This manual contains the complete operating instructions and procedures for the CH-47D helicopters. It is powered by two T55 L-712 or T55-GA-714A engines. The primary mission of the helicopter is troop and cargo transport. The observance of limitations, performance, and weight and balance data provided is mandatory. Your flying experience is recognized, therefore, basic flight principles are not included. It is required that THIS MANUAL BE CARRIED IN THE HELICOPTER AT ALL TIMES.