Estes 1606PK3 B6-4 Model Rocket Engines, 3 Packs – 9 Engines Total with Starters & PlugsPLEASE 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. 3 Packs of Estes B6 4 engines total of 9 engines (each 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

maintenance free centrifugal fan motor Air flow: 175m3/hr

Heavy duty latches

Each bowl comes with a lid that has small holes that allow steam to vent

Contains washable mess free ink

General purpose multi core (bundle) simplex cable for sensor applications

Enough parts to build 3 colorful rockets

8-inch overall length

Please verify that these engines are compatible with your model rocket before purchasing

Capacitance 40nF/400nF/4

Type:-Relay

sources and management

Product Dimensions (L x W x H): x 173 x MM