Estes rocket engine B4-4 (3pcs)

Engine ignition instructions

Insert the starter (thumb) into the engine so that the ignition mixture on the ignition touches the inner wall of the propellant. We recommend that you bend the conductor wires so that the ignition mixture on the firing pin is propelled to the inner wall of the propellant. Engage engine throttle and wires in engine plug.

Detailed overview of rocket engines including explanatory notes can be found here.

Use a high quality alkaline nine volt battery to power the starter. Conventional zinc chloride is unable to provide sufficient current to reliably ignite the firing pin. A 2 A current is required to ignite the fire!

Further information and labeling

• CE mark 0589
• Rocket motor including starters designed to drive rocket models
• Engines must only be sold in the specified complete package
• Age Limit for the Czech Republic and Slovakia 18+
• Category of fireworks P1
• Instructions for use are inside the package
• The expiration date is indicated on engines in month-year format. E.g. 08-28 indicates the expiration date 31. 8. 2028th The typical lifetime of rocket motors when stored correctly is 20 years.
• The net mass of explosive substances is indicated on the packaging
• Observe the national regulations and the enclosed instructions for use
• Use outdoors only. Safety distance: 5 m
• Ignition only with electric starter 6 to 12 V
• Electric starter resistance including wires: 0.69?
• Maximum starter current with no ignition: 500 mA, minimum current with starter at full ignition: 2 A
• Warning: Risk of fire or explosion. Fire the fire with standard means from a reasonable distance.