The Estes A3-6T mini engine is a specially produced, 13mm model rocket engine that has a 6-second delay. Enjoy watching your rocket soar at its highest heights for an extra 6 seconds before it starts the descent with this incredible mini engine. Each package includes 4 engines, 4 starters, and 4 mini starter plugs.

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

The Estes A3-2T mini engine is a specially produced, 13mm model rocket engine that has a 2-second delay. Enjoy watching your rocket soar at its highest heights for an extra 2 seconds before it starts the descent with this incredible mini engine. Each package includes 4 engines, 4 starters, and 4 mini starter plugs.

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.