United ModelA8-3, B4-4, C6-5 Mini Bulk Pack - Includes a Total of 9 Engines

Rockets 🚀 are fun for the whole family.

The selection of engines made our rocket build functional and fun. It was a blast building and launching our rocket. My six year old son and I built our first rocket and we had a great time seeing it launch. We started with the A motors to get an Idea of what we were doing then progressed to the two larger motors. I was a little worried the structural integrity may have been compromised after the first couple launches with the A engines but our rocket remains durable and flight worthy even after launching with the larger C sized engines and several touchdowns in less than ideal locations. I highly recommend researching the recommended launch area specs on estes website before launching to avoid losing your rocket, ours was flying nearly beyond eyesight and would have easily been lost if we were in a more densely populated area. Also avoid launching on a windy day, the rockets decent can take some time and the chute will carry it some distance if there's even a light breeze.

They provide consistent, reliable power. I enjoy knowing I can trust them to perform.

Purchase was what was intended. Received in good condition and in timely manner.

I ordered the model rocket engines. I received the package and it was in great condition. I am very happy!

Those C motors really get models moving. It was cool seeing how each motor acts.

Best quality, best service

Correct&fast shipping on order, highly recommended....