A10-3T Model Rocket Engines (4)

This is an A-class A10-3T mini model rocket engine from Estes. For use in single stage model rockets.

Estes A10-3T Model Rocket Engines (4) Mini Rocket Motor #1511
 Estes Rockets # est1511
Retail $11.29  SAVE 21% !
Estes Rockets Item # est1511
Specifications :
  • Length: 1 3/4"
  • Diameter: 1/2"
  • Estes Product Number: 1511
USA Ground Shipping Only
Website security verified by GoDaddy.

Spotlight Review

For the mini-engine crowd. These will lift your 1 ounce or less rockets out of sight. Streamer recovery suggested...

Member Gallery

(Pictures shared by our community)

You Might Also Like

← Swipe To View More →


  • "Mini" class model rocket engine 4 pack.
  • Single stage model rocket motor.
  • Detailed instructions.
  • Easy to use.
  • National Association of Rocketry certified.


  • Length: 1 3/4"
  • Diameter: 1/2"
  • Estes Product Number: 1511


  • 4 A10-3T Model Rocket Engines
  • 4 Igniters
  • 4 Plugs

Requirements & Suggestions

← Swipe To View More →


"Strong Motor. Likes to CATO."
I have used these motors extensively when launching in smaller fields. These motors can lift a 3 oz rocket with authority, but they keep the apogee lower so you recover your rocket in small areas! I fly BT-50 size rockets which are great because you can actually fit wadding, streamers and 'chutes inside the airframe, unlike the BT-20 size and ESPECIALLY the BT-5 size tubes. Use a motor adapter to fit these mini motors into a BT-20 or BT-50 airframe tube. WARNING: Because of the high output of these motors, I have about a 1 in 10 fail rate, i.e. the motor over-pressurizes (CATOs) when rocket is several feet off the pad. (Remember the old B-14 motors? Same problem here). Build your rocket strong if you will be using these motors. For rockets 2 oz. in weight or less, I recommend the A3-4T which does not suffer from the CATO problems of the A10-3T.

Mr. Northport (Northport, WA)
Not the most powerful small motor out there, but for the price of these you really can't go wrong especially if you're working with little kids.

"Strong for a mini motor"
These really get your smaller rockets off the pad FAST. We shot a sky duster up like a lighting bolt. it was very cool. The are strong enough for use in a 18mm airframe with an adapter, particularly if the model is small and or your field is


  • WARNING: Model rocket motors are flammable. Please use caution.
  • Must be 14 to purchase in CA and NJ.
  • Do not burn engines.
  • Soak in water to destroy.

Others Also Ordererd

← Swipe To View More →