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Estes Large Rocket Engines

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470351-934PK 16.4 USD InStock
470351-934 470352-480 470343-132 470351-938
Estes Large Rocket Engines
Educational Materials Physics Educational Materials Mechanics Learning Activities
Get your larger model rockets in the air with these popular rocket engines.

  • Engines come with igniters, plugs, and instructions
  • Compatible with big daddy, green eggs, etc.
Model rocket engines use letters and numbers to describe their impulse, thrust, and ejection variables. The letter represents the total impulse, and each letter is double the one before it. 'A' engines deliver 2.5 N·s of impulse, while 'B' engines deliver 5.0 N·s, etc. The first number is the average thrust, and the second number is the time delay between powered flight and the ejection charge.

Thus, a C11-3 engine delivers a total impulse of 10.0 N·s, with an average thrust of 11 N. The total time of powered flight is less than 1 second. During the 3 second delay time, the rocket is a projectile traveling toward apogee. After the delay, the ejection charge engages the recovery system. In general, the higher the average thrust, the greater the acceleration of the rocket. Heavier rockets generally need more thrust.

Estes large rocket engine packs come with igniters, plugs to hold the igniter in place, and instructions for new rocketeers. Bulk packs also include recovery wadding. Be sure to reference the Engine Chart and Impulse Graphs for detailed information about thrust, maximum lift weight, and duration.

Ordering information: Required but not included in the standard packs: Recovery wadding.
Due to the nature of this item, it cannot be shipped by air under any circumstances. Please select ground shipping at time of checkout. Note: Rocket engines are subject to UPS hazardous shipping charges.

Delivery information: Standard packs include: 2 large rocket engines, 2 starters, and 4 starter plugs.
Bulk packs include: 12 large rocket engines, 20 starters, 16 starter plugs and ~144 squares of recovery wadding.



   
 

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-962-2660.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. To apply for a shipping account number, click here. If you need further assistance, call Customer Service at 800-962-2660 or email [email protected].
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Limited quantities of this product are available. To check availability or place an order, call Customer Service at 800-962-2660 or email [email protected].
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Item # Description Unit Availability Price Quantity
470352-486 Recovery wadding, 75 sheets
Pack of 75
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