File:Equal transit-time NASA wrong1 es.svg
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Size of this PNG preview of this SVG file: 528 × 178 pixels. Other resolutions: 320 × 108 pixels | 640 × 216 pixels | 1,024 × 345 pixels | 1,280 × 432 pixels | 2,560 × 863 pixels.
Original file (SVG file, nominally 528 × 178 pixels, file size: 10 KB)
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| Description | There are many theories of how lift is generated. Unfortunately, many of the theories found in encyclopedias, on web sites, and even in some textbooks are incorrect, causing unnecessary confusion for students. The theory described on this slide is one of the most widely circulated, incorrect explanations. The theory can be labeled the "Longer Path" theory, or the "Equal Transit Time" theory. The theory states that airfoils are shaped with the upper surface longer than the bottom. The air molecules (the little colored balls on the figure) have farther to travel over the top of the airfoil than along the bottom. In order to meet up at the trailing edge, the molecules going over the top of the wing must travel faster than the molecules moving under the wing. Because the upper flow is faster, then, from Bernoulli's equation, the pressure is lower. The difference in pressure across the airfoil produces the lift. Source: [1] Image was cropped from original slide. |
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Vectorisation, spanish translation. The original can be viewed here: Equal transit-time NASA wrong1.gif:  . Modifications made by Retama.
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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
Original upload log
This image is a derivative work of the following images:
- File:Equal_transit-time_NASA_wrong1.gif licensed with PD-USGov-NASA/es
- 2009-06-01T18:32:35Z Retama 586x264 (4585 Bytes) {{Information |Description=There are many theories of how [[lift (force)|lift]] is generated. Unfortunately, many of the theories found in encyclopedias, on web sites, and even in some textbooks are incorrect, causing unneces
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:34, 1 June 2009 | | 528 × 178 (10 KB) | Retama | {{Information |Description=There are many theories of how lift is generated. Unfortunately, many of the theories found in encyclopedias, on web sites, and even in some textbooks are incorrect, causing unnecessary confusion for students. |
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