| Diameter: | 2.22 inches |
| Length: | 24.40 inches |
| Manufacturer: | Estes ![]() |
| Model: | 21 |
| Motor Size: | 18 millimeters |
| Power: | Low-Power |
| Product Type: | Kit |
| Production Years: | 1965-1973 |
| Recovery: | Parachute |
| Status: | Out-Of-Production |
| Style: | Cluster, Scale |
| Tags: | Scale:Titan:Gemini Titan |
| Weight: | 3.80 ounces |
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