The VIPER III is a sleek experimenter's model that uses a 3-24mm motor cluster. New $42.79 (18% off). It can attain altitudes to over 1800 ft. using three E motors. This unique design has its fins attached into the valleys of the motor mount tube cluster that extends beyond the main airframe. It features a NEW state-of-the-art centering ring/mount tube assembly manufactured exclusively by LOC/PRECISION. This assures a precise motor mount assembly with construction ease. Features: The Viper III is a great rocket to show or fly. It is almost 4 feet tall and flies over 1800 feet. This rocket is designed for some one with previous model rocket building experience. No MMA mount needed to fire the eng