The Estes B6-4 Engine Flight Pack is a trusted staple for hobby shops, toy stores, and science centers looking to stock reliable mid-power rocket engines. With a total impulse of 5.00 N-sec and a 0.8-second thrust duration, this engine is an ideal fit for customers flying mid-weight rockets. Its 4-second delay makes it a versatile choice for a wide range of models and flight profiles, appealing to both beginners and experienced flyers alike.

Known for its consistent performance and dependable ejection timing, the B6-4 is a workhorse in the Estes engine lineup. Its ability to lift rockets up to 4.0 oz (113 g) makes it a go-to option for customers seeking repeatable success in their launches. For retailers, this means fewer returns, more customer satisfaction, and greater brand trust in every sale.

Each flight pack includes 3 engines, 4 starters, 4 starter plugs, and 12 sheets of recovery wadding—making it a ready-to-sell, all-in-one product that meets the needs of hobbyists and weekend flyers. The convenient packaging and clear labeling support easy merchandising and quick customer understanding at the shelf.

Stocking the B6-4 Engine Flight Pack means offering your customers a time-tested engine that delivers. With strong sell-through potential and broad model compatibility, it’s a smart addition to any retail assortment focused on hobby rockets and STEM engagement.

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