| | Thumbnail | | Creator | Date | Title / Author / Date / Location | Price | | | Description |
| 8030 |  | Details | Crowder, Cyril C. | 1935 |
| Crowder Variable Expansion Propeller Design Drawings |
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Crowder, Cyril C. |
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| 1935 |
| LOC: |
| $300.00 | Crowder--Cyril-C- | Crowder-Variable-Expansion-Propeller-Design-Drawings | These three manuscript drawings are a striking artifact of early aviation ingenuity, capturing a bold experimental idea that never left the drafting table. Their meticulously rendered telescoping blades, mechanical sections, and handwritten annotations reveal a level of detail and ambition rarely seen in surviving 1930s aeronautical work. As a display piece, it stands at the intersection of engineering art and aviation history: visually compelling, technically imaginative, and representing a line of research that was too impractical for its time or even for today. Framed, it becomes not just a engineering drawing but a cool conversation piece about the inventive spirit of early flight and the folly of some inventors.
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Crowder's variable expansion propellor was designed by Cyril C. Crowder of Hollywood, Califonia. No information is found online about the designer nor is any patent found for the design.<br><br> |