Estes Mini Rocket Engine A3-4T $26.50
Estes Mini Rocket Engine A3-4T
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The Estes A3-4T engine is single stage rocket engine. This engine is a mini engine designed for flights in lightweight rockets. Each package includes 4 engines, 4 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:


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