Estes Rockets Big Bertha Model Rocket Kit spo-default When you're finishing off your

When you're finishing off your scratch model

E12-6 engines

Available in three scale sizes (see other listings)

these can be substituted for 3D printed rail guides at no extra cost

Weighs only 14 grams without nose weight and rocket motor

Estes Rockets Big Bertha Model Rocket Kit spo-default When you're finishing off yourBig Bertha is an Estes Rockets favorite This popular kit is recommended for Intermediate Skill Level 2 (formally Beginner Skill Level 1) The large kit measures 24 inches in length with a diameter of 1. 64 inches Big Bertha weighs about 2. 5 oz when assembled Recommended B4 2, B4 4, B6 2, B6 4 (first launch), C6 5 engines Projected max altitude of 500 Kit includes laser cut wood fins, Estes body tubes, molded plastic nose cone, waterslide decals and an