A3-4T Engines

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The Estes A3-4T is a mini single-stage model rocket engine designed for rockets up to 2.0 ounces. With a peak thrust of 6.80 newtons, a 0.60-second thrust duration, and a 4-second delay, it delivers dependable performance for lightweight rocket flights. Each pack includes four engines, four starters, and four starter plugs—so you have everything needed for multiple launches without purchasing ignition components separately. Includes: - 4 A3-4T Engines - 4 Starters - 4 Starter Plugs Show more