Estes 1601 B4-2 Model Rocket Engine Pack – 3 Engines with Starters & Plugs intermittent heat to 300 F

intermittent heat to 300 F (149 C)

crescent cutout to easily lift the lid

1kHz resolution

Material: Aluminum

Clay for Nose Cone weight

Estes 1601 B4-2 Model Rocket Engine Pack – 3 Engines with Starters & Plugs intermittent heat to 300 FPLEASE 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 B4 2 engine pack includes 3 engines, 4 starters, and 4 starter plugs The B4 2 is a single stage engine designed for model rocket flights weighing less than 4 ounces, including the engine Recommended for use with the Interceptor, Der Red Max, Chiller, Big Bertha, or