Estes 1692 E12-4 Model Rocket Engines – 3 Engines with Starters & Plugs and analysis features in this

and analysis features in this advanced "A" model means there are even more ways to use the supply

Over voltage

Thickness: 15 mil

Variable DC offset

Estes 1692 E12-4 Model Rocket Engines – 3 Engines with Starters & Plugs and analysis features in thisPLEASE NOTE: These are large (24mm diameter) engines that will only fit certain model rockets. Please refer to the instructions that came with your rocket (or the rocket's product description) to determine engine compatibility. Estes E12 4 engine pack includes 3 engines, 4 starters, and 4 starter plugs The E12 4 is an upper stage engine designed for model rocket flight. This engine can also be used as a single stage engine. Maximum lift weight is 17