Abstract: A blade pin alignment and positioning system for the installation of helicopter blade pins, including an elongated alignment pin and at least one drive member. The drive member is configured to mate with the top end of the alignment pin for use in driving the alignment pin to its initial position in blade installation. Then the drive member is removed from the top of the alignment pin. The exposed top end of the alignment pin is configured to mate with the insertion end of a blade pin. The other end of the alignment pin is tapered for easy operation in alignment of the blade root holes with the holes in the lead lag link portion of the main rotor hub.