A3-4T Engine Flight Pack

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The Estes A3-4T Flight Pack is designed for small, lightweight model rockets requiring 13mm mini engines. With a 2.50 N-sec total impulse, a 4-second delay, and a thrust duration o f just 0.6 seconds, this engine delivers quick, efficient liftoffs followed by reliable deployment timing. Each flight pack includes 4 A3-4T engines, 4 starters, 4 plugs, and 12 sheets of recovery wadding—making it a complete solution for rocketeers looking for consistent mini engine performance in every launch. Includes: - 4 A3-4T Engines - 4 Starters - 4 Starter Plugs - 12 Sheets of Recovery Wadding Show more