Estes 1691 E12-0 Booster Stage Model Rocket Engines, 2 Count – 24mm, with Starters & Plugs and electronics when they build

and electronics when they build and remix SmartCore 6

Product Dimensions (L x W x H): 381 x 13

aerodynamics

Dimensions: 275 x 90 x 300mm

Estes 1691 E12-0 Booster Stage Model Rocket Engines, 2 Count – 24mm, with Starters & Plugs and electronics when they buildPLEASE NOTE: These are large (24mm diameter) booster stage engines for multi stage model rockets. Please refer to the instructions that came with your rocket (or the rocket's product description) to determine engine compatibility. Take your two stage flights higher with the Estes E12 0 booster a reliable 24 mm booster stage engine built for powerful, predictable separation and climb. Perfect for hobbyists who want an easy to use boost to add punch to