1/2A3-4T Upper Stage Rocket Mini-Engine - Purple Label
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Quality-tested Estes® engines for high-performance flights. These energy-packed, solid-propellant model rocket engines are a complete power system for your rocket. They deliver a smoke trail for easy tracking, and supplying ejection power for the recovery system for your rocket’s safe return. Total impulse is tailored to fit the various NARFAI classes. Designed for specific launch and flight functions; rocket engines are not reusable. Igniters and complete instructions are included. Package of 4 engines.
Total Impulse: Lb.-sec., 0.28; N-sec., 1.25
Time Delay (±15%): 4 sec.
Max Lift Weight: 28.3g
Max Thrust Lb./N: 1.75/7.8
*NOTE: Engines ship Parcel Post but shipping time is approximately 2 weeks. Can ship UPS with $12.00 hazardous fee if needed sooner.