| CP Method: | Rocksim/Rocksim | 
| CP Position From Front: | 18.25 inches | 
| Diameter: | 1.64 inches | 
| Fin Material: | Balsa | 
| Length: | 24.00 inches | 
| Manufacturer: | Estes  | 
| Model: | 6 | 
| Motor Size: | 18 millimeters | 
| Nose Cone Material: | Balsa | 
| Original Price: | $2.75 | 
| Power: | Low-Power | 
| Product Type: | Kit | 
| Production Years: | 1962-1971 | 
| Recommended Motors: | 3xA8-3, 3xB6-4, 3xC6-5 | 
| Recovery: | Parachute | 
| Status: | Out-Of-Production | 
| Weight: | 3.40 ounces | 
Brief: Modified Estes Ranger - a three motor cluster rocket with a payload section. My version includes a baffle and uses motor hooks that were not part of the original kit. I was looking for a kit or a plan that would be suitable to fulfill the NARTREK Silver cluster flight requirements. This look alike to the Big Bertha would be a great addition to my fleet if painted in a similar scheme ...
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