The Estes E12-0 is a 24 mm booster-stage rocket engine engineered for dependable, high-thrust performance in two-stage flights. With a peak thrust of 31.3 N (7.0 lbs) and a 2.6 second burn, the E12-0 supplies the surge your second-stage motor needs for clean separation and strong initial climb. Its compact 3.8 inch length and proven propellant formulation make it a favorite for modelers who want repeatable results without complicated setup. What sets the E12-0 apart is how it balances power and practicality. This engine was designed for straightforward use by hobbyists; it pairs seamlessly with any compatible 24 mm sustainer motor to create satisfying two-stage flights. The combination of predictable thrust curve and no delay (time-delay none) means you get an immediate booster impulse when you need it most, making staging timing simpler to manage and reducing the variables that can complicate multi-stage launches. Each package contains 2 E12-0 engines, 2 igniters, and 4 igniter plugs so you have the essentials to prepare multiple launches and spare hardware for quick turnaround between flights. The E12-0’s total impulse of 28.80 N·s, propellant weight of 36.9 g, and lightweight construction (2.05 oz / 58.1 g per engine) are optimized for rockets that weigh less than 16.0 oz (454 g) including engines, the ideal choice for many 24 mm two-stage kits and custom builds. Whether you’re rounding out a weekend of flying with friends or dialing in staging performance for your competition model, the E12-0 is an easy, dependable way to add a true booster stage to your rockets. Always follow Estes safety guidelines and the motor instructions printed on the package; proper engine installation, launch system compatibility, and field safety practices are essential for safe, repeatable flights. ATTENTION: Estes Industries, LLC requires all purchasers and users of Estes® Model Rocket Engines to adhere strictly to all applicable local, state, and federal laws, regulations, and safety standards. The user assumes all responsibility for the safe and lawful use of Estes® products. Estes Industries, LLC expressly disclaims any and all liability for personal injury, property damage, or other loss resulting from the misuse, improper handling, or unauthorized application of its model rocket engines.
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