Estes Standard Rocket Engine C11-5 'D Size'

The Estes C11-5 engine is a single stage engine designed for model rocket flight. This engine is a standard engine designed for flights in rockets weighing less than 170g, including the engine. Each package includes 2 engines, 2 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: