B4-2 Engines

The Estes B4-2 engine is suitable for educational settings, providing safe, repeatable flights to teach model rocketry basics.

• The description claims the B4-2 delivers clear, easy to observe flight behavior.
• The description claims consistent thrust and dependable ignition.
• The description claims controlled flight path and moderate altitude.
• The description claims the B4-2 supports STEM instruction.