File:Zimmerman with tiltwing model.jpg
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Zimmerman_with_tiltwing_model.jpg (283 × 188 pixels, file size: 45 KB, MIME type: image/jpeg)
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Summary
| Description |
English: Charles H. Zimmerman poses next to a wind-tunnel model of a tiltwing aircraft. |
| Date | 1950s |
| Source | NASA SP-4305 "Engineer in Charge" |
| Author | Unknown author |
| Permission (Reusing this file) |
NASA photograph |
Licensing
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:35, 11 August 2023 | | 283 × 188 (45 KB) | WikiPedant | adjusted levels; converted to greyscale |
| 20:05, 13 June 2012 |  | 283 × 188 (42 KB) | The Bushranger | {{Information |Description ={{en|1=Charles H. Zimmerman poses next to a wind-tunnel model of a tiltwing aircraft.}} |Source =[http://history.nasa.gov/SP-4305/ch12.htm NASA SP-4305 "Engineer in Charge"] |Author =Unknown |Date ... |
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