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Polycarbonate Body - Jambo XP 6S - Clear - Cut - 1 pc
Stronger and stiffer than the stock plastic mount
7% overdrive gears
Originally released in 1964
1/4A3-3T Model Rocket Engines (4pk) Wheel Hub Polycarbonate Body - Jambo XPThe Estes 1 4A3 3T is single stage engine designed for model rocket flight. It is a mini engine designed for flights in lightweight rockets. Each package includes 4 engines, 4 starters, and 4 starter plugs.
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