Check the listing for details. Rocketarium Flying Model Rocket Kit S-25 Berkut RK-1023. Condition: New. Listed at 35.14 USD. Rocketarium S-25 Berkut Scale Rocket Kit Out of Production This is a sport-scale model of the S25-Berkut which was part of the first operational Surface-To-Air missile system. Developed in the USSR in the 1950's, it was intended to defend Moscow from aerial attacks.The large fins really make it stand out. The model rocket has an impressive 8.47" fin span and stands nearly 28" tall. The scale S25-Berkut missile flies D to F motors for a wide motor selection. As the tail-end is wider, the kit includes a plywood transition ring, and cardstock transition template. This is a Skill Level 4 kit. No decals are provided with this kit, as none are needed to build it like the real rocket.Dimensions Overall length : 27.96" Diameter : 1.637" (BT60) Forward Fin Span : 8.47" Weight : 4.7oz Recommended Motors Estes® D12-5 Single Use Aerotech® E20-7 Aerotech® RMS E18-7, E28-7 Challenges There is a tail cone/transition which is formed from a cardstock template and a pre-cut plywood ring. This makes this a Skill Level 4 flying model rocket kit. Parts: The S25-Berkut rocket kit includes a translucent plastic nose cone, balsa fin sheets, fin templates, plywood centering rings, 15" plastic parachute kit. Model Rocket Kits are rated by Skill Level1 Beginner2 Intermediate3 Advanced4 Expert5 MasterIf you are just starting in the hobby start at the beginner level and move up from there at your own pace.What is needed to build and flyAll model rockets come in kit form that require assembly. The materials are primarily cardboard tubes, balsa or plastic fins and nose cone. Materials will vary by model and are typically specified in the description of each kit. Additional supplies will be necessary to build and finish your model rocket kit and may include:Scissors, Hobby KnifeRulerWood Glue, Model Cement or CA(Super Glue)SandpaperMasking TapeFinishing Supplies like:Wood FillerSealer/PrimerPaintLaunching Equipment and Supplies like:Recovery waddingLaunch PadLaunch ControllerPower supplyModel Rocket Motors and IgnitersA safe place to fly using guidelines from the National Association of Rocketry Safety Code