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| The friction of the atmosphere across an wing, ship, body will heat the object. <br />
| | #REDIRECT [[Aerodynamic heating]] |
| Reentry can be a very dangerous time,<br />
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| because you are impacting the air at a High speed,<br />
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| but there is not enough to help cool the ship. <br />
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| <br />
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| ===Outside Air Temperature===
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| Outside Air Temperature is displayed as OAT.<br />
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| This is the air temp taken in Kevin. <br />
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| <br />
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| ===Static Air Temperature===
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| Static Air Temperature is displayed as SAT.<br />
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| This is the air temp taken with a standard thermometer in still air and no sun shining on it. <br />
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| *For the purpose practicality OAT(in K) and SAT(in C) are basically the same just different scales.<br />
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| <br />
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| ===Ram Air Temperature===
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| Often called Ram Air or RAT<br />
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| This is a measure of how much the compression of the air is heating it. SAT+RAT= TAT<br />
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| <br />
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| ===Total Air Temperature===
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| Total Air Temperature is what you track to see how much the Air will heat your Air Frame<br />
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| The lower the Dynamic Pressure and Air pressure the less TAT can affect you. <br />
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| In space you may only be impacting a few molecules a second with the entire air frame. <br />
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| Yes each molecule imparts energy but there are so few that you can still cool through radiation. <br />
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| <br />
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| ===Air Frame Temperature===
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| You will find this listed as AFT on most displays. <br />
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| This is usually a direct reading of the most critical part of the ship.<br />
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| This typically is were a wing meets the body. <br />
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| The interaction of the two shock waves can super heat the air mass in a local area.
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