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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
this engine is compatible with a wide range of rocket designs
The Estes 1/4A3-3T Engine Bulk Pack is a practical choice for educators and youth program leaders who need reliable mini engines for lightweight model rocket launches
Molded plastic fins provide consistent performance flight after flight
At 30 inches in diameter
Pro Series II™ 4" OD Slotted Body Tube 10040 this engine is compatible with4 inch OD slotted body tube. Length: 20. 75 inches Slotted body tube used in the Pro Series II 9705 Mega Der Red Max model rocket. Can also be used in designing your own rocket!
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