Check the listing for details. Estes Flying Model Rocket Kit Boosted Bertha EST 1946. Condition: New. Listed at 33.29 USD. Estes Flying Model Rocket Kit Boosted Bertha 1946Estes is proud to welcome the newest member of the Bertha rocket family. A sport rocket at its core, this multistage flying model rocket can reach altitudes of 1000 feet! A colorful 18 inch parachute provides a soft landing, so the Boosted Bertha can be quickly prepared for another launch.Assembly Required Skill Level 3 AdvancedEstes is proud to welcome the newest member of the Bertha family, the Boosted Bertha. This beaut rounds out the collection by being the first in the series to feature a two-stage rocket booster.A sport rocket at its core, the second booster of this multistage flying model rocket will push this Bertha skyward, reaching twice the height of Big Bertha. The Boosted Bertha will reach altitudes of 1000 feet when powered with an Estes C6-0 engine in the booster stage and an Estes C6-5 engine in the main rocket. After the first stage ignites, the booster jettisons and gently tumbles back to earth. Once the rocket reaches apogee, the rocket will deploy the recovery system—a colorful 18 inch parachute. This provides the Boosted Bertha a light landing so that it can be quickly prepared for another launch.Quality Estes body tubes, laser cut wood fins, a molded plastic nose cone, and easy-to-apply waterslide decals make for a full day of building enjoyment. Once painted to perfection, this Bertha is a must-have for any rocket collector!Length 28.2 in.Diameter 1.64 in.Estimated Weight 4.0 ozAssembly Time 4 Hours (painting and glue drying time not included)Fin Materials Laser cut woodDecal Type WaterslideLaunch Rod Size 1/8"Estimated Assembly Time 4 Hours (painting and glue drying time not included)Recommended Engines Upper-stage rocket only (no booster): B4-2, B4-4, B6-2, B6-4, C6-5Booster Rocket (two-stage):Upper: A8-3, B4-4, B6-2, B6-4, C6-5 Booster: B6-0, C6-0Projected Max Altitude 1000 ft. (305 m)Recovery System 18 in. (45.7 cm) Parachute; Tumble 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