This two engine combo pack is to be used with two stage rockets. The B6-0 is a booster engine that has no delay or ejection charge. The B6-6 is the upper stage engine. 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.

Tube Couplers! 6 pieces. 2 popular sizes.
2 each : BT55 – 1.25 inches long
2 each : BT60 – 1.5 inches long
2 each : BT60 – 3 inches long

• Heavy duty engine mounts for the D and E engines
• Contains enough parts to mount two engines
• Includes 19 individual parts
• For use with 24mm motors

NC-60 Nose cone will fit the BT-60 body tube.

ENGINES FOR MODEL ROCKETS

4 – 1/2A3-2T Engines
4 – Starters
4 – 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.