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The Estes B6-4 Rocket Engine 3-Pack is a medium engine pack that delivers high altitude flights. As a standard 18mm single-stage engine, this is designed for larger, heavier rockets.
Estes 1606 B6-4 Engine Bulk Pack package...
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The Estes B6-4 Rocket Engine 3-Pack is a medium engine pack that delivers high altitude flights. As a standard 18mm single-stage engine, this is designed for larger, heavier rockets.
Estes 1606 B6-4 Engine Bulk Pack package includes -
B6-4 Rocket Engine 3-Pack is best used in the rocket kits below -
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