The next step in a cluster rocket with payload section. This is a flying model based on the EnerJet 2250 sounding rocket originally produced in 1972. Trident Cluster Series features a payload bay and offers adventurous rocketeers the whopping lift power of three engine cluster flights. This Rocket comes with laser-cut centering rings and fins, decals and 18" plastic parachute. No engine hooks are provided with this kit, as there's no room for them. This rocket must be launched from 3/16" launch rod. Requires Assembly. Wood glue, hobby knife, sandpaper, masking tape, primer and paint needed to build this rocket. Launch system with 3/16" Launch rod, Cluster-Compatible Launch Controller, Rocket Motors and wadding needed to launch this rocket. Specifications Length: 31.75" (81 cm) Diameter: 1.72" (44 mm) Weight: 6.32 oz. (182 g) Motor Mount: 3 x 18 mm. Recovery System: Parachute Projected Max Altitude: 840 ft. (275 m) Recommended Engines: 3 x A8-3, B4-4, B6-4, C6-5