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 > Model Rockets > Educator Packs > Engines : Estes A8-3 Rocket Engines (24) est1781

A8-3 Rocket Engines (24)

This is a 24 bulk pack of Estes A8-3 model rocket engines. Includes 24 engines, 30 igniters, and recovery wadding.

Estes A8-3 Rocket Engines (24) Model Rocket Engine Bulk Pack #1781
 Estes Rockets # est1781
Retail $73.00  SAVE 21% !
Estes Rockets Item # est1781
Specifications :
  • Length: 2 3/4"
  • Diameter: 3/4"
  • Estes Product Number: 1781
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Spotlight Review

"Great kits"
Worked well for BSA pow wow. Boys ages ranged from 11 to 15 years old and they were able to assemble with minimal help.

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  • A-Class model rocket engine 24 bulk pack.
  • 6 extra igniters included.
  • Wadding included.
  • Single stage model rocket motor.
  • Detailed instructions.
  • Easy to use.
  • National Association of Rocketry certified.


  • Length: 2 3/4"
  • Diameter: 3/4"
  • Estes Product Number: 1781


  • 24 A8-3 Model Rocket Engines
  • 30 Igniters
  • 24 Plugs
  • Wadding (est302274)

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"Great for group launches"
I've used Estes A8-3 engines in rocket launches with my local Boys & Girls clubs. They are a great value and include 24 engines, 30 igniters, a package of wadding, and 24 plugs to hold the igniters in the engines. These motors are the same size as standard B and C motors, so you can launch with motors of different power and demonstrate the difference on rocket height, or use different models to demonstrate the variation in altitude with different rocket masses. Combine these engines with a bulk pack of Viking or Wizard rockets and your group will have a great time building and launching rockets. These engines are reliable. Hobby Linc has a great price on the engines, you will be hard pressed to find a better retail price. The pack also includes instructions for use of the engines. One warning, make sure the electrical leads are not touching before trying to launch the rocket, because a short will prevent the igniter from functioning properly.

"Good deal"
All things considered, a nice package. Was a rocketry guy in the late 60.s early 70's. Drifted away, no pun intended. Back now with youngest child, a nine year old. ARF rockets? Wow. The days of the super light rockets are replaced with ARF's using allot of plastic which is heavy compared to balsa. Why bring this up? The A8-3 will only lift those entry level plastic beasts a couple hundred feet at best. AT BEST. Use an A8 to figure wind direction and speed. Then use B class engines in the plastics. Now you are at 500+ feet and much more fun for the activity. As I said, all considered, you cant beat the prices and value and selection at Hobbylinc. Just buy the right engines for your model and field and wind conditions on launch day. What a thrill to be back in the hobby and the smell of a spent rocket engine ! Fly safely and join a club.

"A great value for teaching!"
rmstechlab (Evans, GA)
First of all, let me tell you that you won't find a better value than this bulk pack here at Hobbylinc; if you're looking for the best price, you've found it. I've used these A8-3 motors for launching student-built Viking rocket models for several years now. With school budgets getting tighter each year, it's good to know that I can come here for these supplies without having to sacrifice in other areas of my program. As far as the motors themselves are concerned, you can expect the usual Estes quality. I can't remember ever getting a dud in well over 1000 launches. The only thing I've ever had trouble with is a rare faulty igniter here and there, but this isn't really a problem since the package includes plenty of extras. Of course, A8-3 motors aren't the most powerful, but this fits my needs nicely. Since I launch several rockets at a time, I find the lower altitude makes it easier to manage the process; I can launch in a smaller area and recovery is much easier. Of course, the Viking rocket is pretty small, so even an A8-3 will result in a satisfactory launch height; anything more would be overkill. One of my favorite features of this pack has nothing to do with the actual motors, but with the packaging itself. In the past I've purchased motors in bulk only to receive several retail packages of 3. It's a minor complaint, but opening and preparing several of these packages can be a real pain, especially if you're trying to do it in a rush. This bulk pack is much easier to deal with as all the engines are in one box. In short, this is a great package with everything you'll need to get your rockets in the air; even better, it's the best value you can find. Buy it!


  • 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.

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