This rocket I used in teaching my summer rocketry classes. They're cheap and come in bulk packs. The fins can also be configured in different ways for some (but not much) experimentation. The minimum quantity of supplies needed to build it make it cheap to manufacture and therefore cheap for the customer. One issue is that even on an 18mm A motor, it will still go up pretty high (500feet) so make sure to pay very close attention on that first flight motor. Also, one of the biggest mistakes my students used to make was the installation of the green thrust ring. Often times the motor would either shoot up into the rocket and continue thrusting and lighting the model on fire, or the motor would just shoot up and out through the nose cone. Make sure the thrust ring is firmly glue in place. I recommend going back and gluing it a second time. I also recommend gluing it from both ends: the motor end, and the nose cone end (use a 12 long dowel with a bead of glue on the tip). Another common malfunction was with motor retention. Make sure you tape the motor so that it's a tight fit. It's something you have to feel your way through. Too much tape and the motor won't go in, or want to come out. Too little tape and the motor shoots out (in this case you get a ballistic rocket and a motor falling down at you, pretty dangerous). Make sure you're on a huge field for B and C motors. If you use a C motor, be prepared to lose sight of it for a while. Paint it neon orange or red or something eye-catching if you're planning on doing this. Insane altitudes and speed on this rocket. I would recommend it for a classroom but not for the individual's first time rocket. For a first rocket, try something bigger and simpler or the Estes RTF (ready to fly) kits.

When built correctly, flies reliably and impressively. Easy to lose with a B or C engine, so we stick to A engines with the limited firing space we have, The fins are always the hardest part for junior high students because they have to be patient when applying and waiting for them to dry.