Blast model rockets to amazing heights with the Estes Tandem-X Launch Set. An ideal introduction to rocket building, this set contains two rocket kits: the Amazon and the Crossfire ISX. It also comes with a launch pad for easy launching, plus two plastic parachutes that ensure a gentle descent to the ground. Whether you're a new rocketeer or a seasoned veteran of the skies, the Tandem-X is sure to deliver plenty of high-altitude thrills. 1469 Tandem-X Launch Set At a Glance: Age Requirements: 10 and up; adult supervision needed for children under 12 Assembly Requirements: Estes rocket engines for flight, and 4 AA batteries for launch controller (all sold separately) Warranty: One-year warranty against manufacturer defects Learn the basics of crafting model rockets with the 3-foot tall Amazon and 15 inch Crossfire. View larger. Its launch system includes a stabilizing launch pad and push-button controller. View larger. Blast Off to Extreme Heights With two rocket kits, the Tandem-X Launch Set offers two unique launching experiences. The aptly-named Amazon is the bigger of the two rockets: it towers at almost three feet tall and features a fearsome tiger-stripe decal. When flown with a standard Estes engine, the Amazon can soar to heights of 600 feet. The Crossfire is a smaller craft, standing just a little over 15 inches tall. In spite of its size, this little rocket can blast off to seriously impressive altitudes. Thanks to its aerodynamic fins and nose cone, the Crossfire can reach cloud-bursting heights of 1,150 feet. Both rockets are outfitted with colorful, preassembled parachutes, which ensure they can float gently back to Earth for another flight. An Introduction to Rocket Building The Tandem-X Launch offers just the right amount of challenge for novice rocket builders. The Amazon is an E2X (easy-to-assemble) rocket, and requires no paint or special tools for assembly. It can be built in less than an hour: simply glue the plastic fins to the tube, install the engine, and attach the parachute. Finish the rocket off with a few self-stick decals, and you're ready to launch. Once builders have mastered the basics, they can move on to the more advanced Skill Level 1 Crossfire. With its plastic nose cone and laser-cut balsa fins, the Crossfire requires a little more finesse. Assembling the rocket can take an entire afternoon, but it's a rewarding and educational process. Builders will learn several beginner-level rocket techniques, such as painting and sanding. Estes has also included an illustrated, step-by-step instruction guide to help keep the assembly fun, smooth, and frustration-free. Educational Fun In addition to the thrills it provides, the Tandem-X also has significant educational value. The set transforms kids into amateur rocket scientists, encouraging them to think about how the rockets work. Rocket building teaches kids the basics of propulsion, flight, and aerodynamics, and can help foster an early interest in science and engineering. Even failed launches can turn into a learning experience. Requires an Estes Engine Both rockets require a specialized Estes engine to launch. For the Amazon, Estes recommends a B4-2 engine for your first flight. The rocket is also compatible with other Estes engines, including the B4-4, B6-2, B6-4, C6-3, and C6-5. For the Crossfire, Estes recommends the A8-3 for first flight, and the B4-4, B6-4, C6-5, and C6-7 for more advanced launching. What's in the Box Estes 1469 Tandem-X Launch Set with Amazon rocket kit, Crossfire ISX rocket kit, two plastic parachutes, launch pad, and push-button launch controller.