Estes Standard Rocket Engine B6-4

The Estes B6-4 engine is single stage rocket engine. This engine is a standard engine designed for flights in rockets weighing less than 115g including the engine. Each package includes 3 engines, 3 igniters and 4 igniter plugs.

How does a model rocket engine work?

• When the engine is ignited, it produces thrust and boosts the rocket into the sky:
  
  
• After the propellant is used up, a delay is activated, producing tracking smoke and allowing the rocket to coast:
  
  
• After the delay is burnt, the ejection charge activates, deploying the recovers system: