| Welcome! This site was created to chronicle my lifelong model aviation hobby, and to provide some valuable resources for visitors. - Kirt Blattenberger AMA 92498 My Models: Airplanes, Boats, Helicopters, Rockets | ![]() | |
| Modeling in Erie, PA | ||
| Airplanes & Rockets Modeling Forums | ||
| ©1996-2012 |

My first (and only, for that matter) cluster type model rocket was the Estes Cobra. It uses a cluster of three motors. It is a rather unattractive model, and uses four very large fins, most likely to help assure a controlled flight in the event that one or two of the motors misfire. A big concern with cluster models is that either a motor will fail to ignite or that one will ignite much later than the others.
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