From the Manufacturer A uniquely designed rocket with external air intakes, the Rogue Voyager can reach heights of 550 feet. This rocket is brought back to earth with a 12 inch (30 cm) parachute for relaunch again and again. Estes model rocketry is recommended for ages 10 and up with adult supervision for those under 12. Unless otherwise specified, all models require assembly. Tools, construction and finishing supplies sold separately. In order to launch, a launch system, model rocket engines, igniters and recovery wadding are required - sold separately-unless otherwise specified.