A3-4T Engines

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

Availability verified during our latest store check. If the item isn't on the shelf when we get there, the order is cancelled and you are refunded in full.