B6-4 Bulk Pack/24pc

The B6-4 is a medium impulse engine that delivers high altitude flights. It works great for launching larger, heavier rockets, too. Estes engine bulk packs are convenient and include everything your students need to prepare their rockets for launching.

Technical SpecificationsIncludes: 24 – B6-4 model rocket engines, 30 – model rocket igniters, 24 – reusable igniter plugs and 75 squares of recovery wadding.