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.

PLEASE NOTE: This item will ship by US Postal Service only. You MUST HAVE a physical mailbox or post office box for delivery.

ENGINES FOR MODEL ROCKETS

Engine bulk packs come with all the model rocket engine supplies you need to launch 24 rockets. Included are 24 model rocket engines, 30 starters, 24 starter plugs and 75 squares of recovery wadding. Use the 1/2A3-4T engine to launch the UP Aerospace SpaceLoft bulk pack rockets.

PLEASE NOTE: This item will ship by US Postal Service only. You MUST HAVE a physical mailbox or post office box for delivery.

Estes engine bulk packs are convenient and include everything your students need to prepare their rockets for launching.

PLEASE NOTE: This item will ship by US Postal Service only. You MUST HAVE a physical mailbox or post office box for delivery.

ENGINES FOR MODEL ROCKETS

2 – F15-8 Engines
2 – Starters
4 – Starter Plugs

ATTENTION: Additional Hazardous Materials shipping and handling charge of $35.49 will be applied at checkout.

ATTENTION: These engines cannot be sent to post office boxes. Please be sure to provide a PHYSICAL ADDRESS when purchasing E and F sized engines.

ENGINES FOR MODEL ROCKETS

2 – E16-4 Engines
2 – Starters
4 – Starter Plugs

ATTENTION: Additional Hazardous Materials shipping and handling charge of $35.49 will be applied at checkout.

ATTENTION: These engines cannot be sent to post office boxes. Please be sure to provide a PHYSICAL ADDRESS when purchasing E and F sized engines.