Gran Bertha®

I wish I could give a full review. My purchase is for a Thanksgiving project with my grandson. It arrived on time like they said. Well packaged and in great condition. Can't wait to build and launches.

I love the fact that Big Bertha has a family! I recently cleaned out my childhood house and came across a few totes in the attic pack full of my rocket collection from the late 70’s and 80’s. This old girl didn’t age well in that heat but it brought back a lot of great memories launching at the school sports fields. I bought the entire set to start up a new collection and start new memories with my new family.

Great rocket to build and launch. Construction is straightforward and beginner friendly, and launch is high-performance. The liftoff is slow, as advertised (That is, compared to other rockets) and the rocket has a stable flight. The yellow paint scheme looks great and is visible in the sky. I have launched it about 8-10 times by now, and most launches were successful. There was one launch when the parachute failed to deploy, and the rocket plummeted to the ground, but surprisingly, suffered no damage so I was able to launch it again. I built mine stock, but it can easily be modified to take 24mm or 29mm engines if you want it to go higher.