The B6-4 Engine Bulk Pack is a medium impulse engine that delivers high altitude flights for launching larger, heavier rockets. Estes engine bulk packs are convenient and include everything your students need to prepare their rockets for launching.Estes 1783 B6-4 Engine Bulk Packs come with all the rocket engine supplies you need to launch 24 rockets. Included are - 24 B6-4 rocket engines 30 model rocket starters 24 reusable starter plugs 75 squares of recovery wadding Use engine bulk packs to launch these rockets packs - Generic E2X Bulk Pack of 12 Alpha III Bulk Pack of 12 Wizard Bulk Pack of 12 Viking Bulk Pack of 12 Alpha Bulk Pack of 12 ATTENTION: Residents of California, New Jersey, Rhode Island and North Dakota please review the Terms of Sale for state specific restrictions or Click Here for State Specific Restrictions.
