Estes Rockets
1/2A3-4T Engine Bulk Pack
1/2A3-4T Engine Bulk Pack
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The Estes 1/2A3-4T is perfect for launching a small, lightweight rocket and can be used over and over again without breaking the bank. The Estes 1/2A3-4T is from the Estes Mini line of engines that have become so popular over the last decade. are. These engines have one of the lowest cost-per-flights of any rocket engine available anywhere.
PLEASE NOTE: This item will ship by US Postal Service only. You MUST HAVE a physical mailbox or post office box for delivery.
This bulk pack is bought nearly as often by hobbyists as it is by educators due to the value of the Estes Mini engines. These engines are perfect for a day filled with flying! Use this bulk pack to easily compare design changes on those small model rockets.
This bulk pack includes everything you need to launch and recover a model rocket 24 times!
Included in this bulk pack:
- 24 1/2A3-4T engines
- 30 Estes starters
- 24 Starter plugs
- 75 Squares of recovery wadding
| Length |
1.75 in. (4.4 cm) |
|---|---|
| Diameter |
13 mm |
| Estimated Weight |
.23 oz. (6.5 g) |
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Live, Online Training and 1:1 Support!
Estes Education has been a leader in STEM education for over 60 years. We know that STEM is a vital interdisciplinary topic that requires hands-on and inclusive learning. Explore these supporting materials to take learning to new heights!
Should you have need, you can meet with a member of Education team for FREE, 1:1 online support to learn rocketry basics, how to apply our curriculum, and discover unique teaching strategies. Our team is eager to answer your questions!
Learn About Model Rocket Safety!
Not sure how to safely launch a rocket with your group? Head over to our dedicated Safety instructions page for videos, support, and more!