Coaxial D is a scratch-design built, originally, using parts from an Estes Sparrow and an Estes Quark. It features a cluster of two motors which are inline with each other rather than side-by-side.
| Designer: | Mark Fisher |
| Manufacturer: | Scratch |
| Motor Size: | 18 millimeters, 24 millimeters |
| Power: | Low-Power |
| Product Type: | Scratch |
| Related Products: | Estes Sparrow, Estes Quark |
| Style: | Cluster |
Visit Mark Fisher's site to read an article about the design, construction, and flying of the Coaxial D.
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