File:Stafford Air & Space Museum, Weatherford, OK, US (16).jpg
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English: A burned fragment of the ablative heat shield from the Command Module of the Apollo 10 lunar mission. On May 26, 1969, at the start of the command module's re-entry into Earth's atmosphere, it became the fastest human-carrying vehicle in history, reaching a speed relative to Earth of 24,791 mph (39,897 km/h), or 36,360 ft/s (11,080 m/s). This speed corresponded to an enormous amount of kinetic energy, equivalent to around 85 tons of TNT. During re-entry, the command module dumped this energy into the atmosphere, forming an incandescent shock wave of highly compressed, superheated air just in front of it. The ablative heat shield was made of a material called "AVCOAT", a special epoxy resin in a fiberglass honeycomb. Heating of the shield by the shock wave would partly vaporize this resin, forming a vapor boundary layer which blocked further heat from reaching the shield and the rest of the spacecraft, and carrying away most of the heat that had gotten through. Displayed at the Stafford Air & Space Museum, Weatherford, Oklahoma, U.S. |
| Date | |
| Source | Own work |
| Author | Bubba73 |
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This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: Judson McCranie
- You are free:
- to share – to copy, distribute and transmit the work
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- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
By Jud McCranie
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 00:45, 4 November 2018 | | 6,016 × 4,016 (14.57 MB) | Bubba73 (talk | contribs) | VicuñaUploader 1.23 |
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