Estes 1606 B6-4 Model Rocket Engine Pack – 3 Engines with Starters & Plugs Regulates the voltage you need

Regulates the voltage you need for various circuit board and electrical projects

For mathematical analysis mode

gravitational forces

30 in 1 creates any possible type of adapter

Estes 1606 B6-4 Model Rocket Engine Pack – 3 Engines with Starters & Plugs Regulates the voltage you needPLEASE NOTE: These are 18mm diameter engines. Please refer to the instructions that came with your rocket (or the rocket's product description) to determine engine compatibility. Estes B6 4 engine pack includes 3 engines, 4 starters, and 4 starter plugs The B6 4 is a single stage engine that delivers high altitude flights Recommended for use with the Rascal & HiJinks, Hi Flier, AstroCam, Tandem X, or other compatible rocket kits This item will ship by