Timeline for Does an instrument exist to measure the different types of drag?
Current License: CC BY-SA 4.0
10 events
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| Sep 8, 2020 at 2:00 | comment | added | Camille Goudeseune | 1, no, a rake can't know what caused the change in pressure. 2, great photo, maybe it is a drag rake. What context is there for this photo? (This is worth asking as a new question, instead of hidden in these comments.) | |
| Sep 8, 2020 at 1:58 | history | edited | Camille Goudeseune | CC BY-SA 4.0 |
restore formatting of quote
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| Sep 7, 2020 at 16:18 | comment | added | user52248 | Can rake measure pressure drag separatetly from skin friciton? Is this rake motorsport.tech/wp-content/uploads/2020/02/…? | |
| Sep 7, 2020 at 15:52 | comment | added | Peter Kämpf | Drag rakes have been flown behind wings for at least half a century already. However, photographic evidence is missing from the web. | |
| Sep 6, 2020 at 23:15 | history | edited | Vikki | CC BY-SA 4.0 |
Removing Extraneous Capitalisation.
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| Mar 25, 2020 at 21:33 | history | edited | Camille Goudeseune | CC BY-SA 4.0 |
incorporated comment
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| Mar 25, 2020 at 21:26 | history | edited | Camille Goudeseune | CC BY-SA 4.0 |
incorporated comment
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| Mar 24, 2020 at 20:28 | comment | added | quiet flyer | @xxavier and others-- Drag rakes have certainly been used in flight to measure the drag of sailplanes-- for examples, see some of Richard Johnson's work. I am fairly sure the instrument is rigidly mounted to the aircraft, not towed. This answer could be improved by incorporating references to this work. In fact I'm fairly sure I saw a glider with a drag rake on it at the soaring museum in Moriarty, New Mexico. If I can locate photos I may compose an actual answer along these lines. | |
| Feb 6, 2020 at 21:02 | comment | added | Camille Goudeseune | JZYL's answer explains how a wake rake works, and suggests that it would help to measure not just pressure but also cross-flow. But it would be hard to tow an array of cross-flow sensors (hot film, maybe?) without affecting the airplane's drag and center of mass. | |
| Feb 5, 2020 at 20:45 | history | answered | Camille Goudeseune | CC BY-SA 4.0 |
