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Ready to boost your mid-sized model rockets? The Estes B6-4 Engine Flight Pack delivers consistent performance with a 4-second delay and 0.8-second thrust duration—great for rockets up to 4.0 oz. With a total impulse of 5.00 N-sec, it offers a reliable balance of power and stability for hobbyists of all skill levels.
Each pack includes 3 B6-4 engines, 4 starters, 4 plugs, and 12 sheets of recovery wadding. It’s everything you need for multiple launches, all in one convenient kit.
Includes:
- 3 B6-4 Engines
- 4 Starters
- 4 Starter Plugs
- 12 Sheets of Recovery Wadding