The AH-64E Apache helicopter has 26 new technologies to enhance its capabilities, including an improved drive system; a new composite main rotor blade; an increase in the hover ceiling altitude at greater gross weight; and a more powerful on-board computer system to help pilots remotely fly unmanned aircraft and streamline maintenance. The Army’s plan is for 690 AH-64E Apache aircraft. In addition, a growing number of defense forces worldwide are under contract or considering upgrading to the AH-64E.