Gadfly Missile Cluster Rocket Gadfly missiles are radar-guided. They are used to target various aircraft and enemy cruise missiles. This Surface-to-Air missile (SAM) has a 30-70% success rate against helicopters. Success equals a single-shot kill. The Gadfly military scale rocket kit flies on a cluster of three 18mm rocket engines. Fly it on three A8-3's for lower flights on smaller fields. Or, go all out with three C6-5 engines for an exciting launch. Parachute kit included for recovery. The nose cone is translucent, offering excellent night-flight potential. $26.95  Rocket Dimensions Overall length : 26.50" Diameter : 1.637" (BT60) Fin Span : 3.99" Weight : 5.6oz Recommended Rocket Engines Estes® 3xA8-3, 3xB4-4, 3xC6-5 Challenges The large forward fins are created by gluing two shorter fin sections together. The fin sections and fins themselves are pre-cut. Parts Parts to build the Gadfly hobby rocket are all included with the kit. Supplies such as glue, sandpaper, primer, paint are not included. No rocket engines are included with this kit, or any other model rocket for sale on this web site.