4 1/4A3-3TMINI ENGINES FOR MODEL ROCKETS Also included: 4 igniters and 4 plugs

4 1/2A3-2T MINI ENGINES FOR MODEL ROCKETS Also included: 4 igniters and 4 plugs

4 1/2A3-4T MINI ENGINES FOR MODEL ROCKETS Also included: 4 igniters and 4 plugs

The Estes A3-4T Flight Pack is designed for small, lightweight model rockets requiring 13mm mini engines. With a 2.50 N-sec total impulse, a 4-second...

4 A10-0T BOOSTER MINI ENGINES FOR MODEL ROCKETS Also included: 4 igniters and 4 plugs

4 A10-3T MINI ENGINES FOR MODEL ROCKETS Also included: 4 igniters and 4 plugs