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(→Tuck avoidance: Sensor: add link; Analysis tuck Jesper) |
(→Analysis of the 'Tuck out of the blue' video: link corrected) |
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Jesper's video seems to be “the film to the book”, i.e. Adam Parer's report from 2009. I have the impression that Adam describes exactly the same tuck initiation that can be seen on Jesper's video. Adam also mentions Andreas Orgler's tuck, which seems to have a similar initiation: | Jesper's video seems to be “the film to the book”, i.e. Adam Parer's report from 2009. I have the impression that Adam describes exactly the same tuck initiation that can be seen on Jesper's video. Adam also mentions Andreas Orgler's tuck, which seems to have a similar initiation: | ||
(1) http://ozreport.com/13.238 (2) https://ozreport.com/docs/AdamParerAccidentReport.pdf (3) https://xcmag.com/news/there-i-was- | (1) http://ozreport.com/13.238 (2) https://ozreport.com/docs/AdamParerAccidentReport.pdf (3) https://xcmag.com/news/there-i-was-hang-gliding-horror-down-under/ | ||
Jesper writes in his comment on his YouTube video:<br> | Jesper writes in his comment on his YouTube video:<br> | ||
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How right he is! Hence the detailed analysis below. I am only focusing here on the tuck initiation (until the hang glider flies inverted). Although the following in both Jesper's video and Adam's report is also super interesting and quite spectacular, it is explicitly not part of this analysis, as from this point onwards the pilot is only a passenger and can no longer intervene in the steering. You are then helplessly at the mercy of what follows. | How right he is! Hence the detailed analysis below. I am only focusing here on the tuck initiation (until the hang glider flies inverted). Although the following in both Jesper's video and Adam's report is also super interesting and quite spectacular, it is explicitly not part of this analysis, as from this point onwards the pilot is only a passenger and can no longer intervene in the steering. You are then helplessly at the mercy of what follows. | ||
This tuck initiation can also be broken down into the four phases described above. The only difference is in phase 0, where the high angle of attack is generated by a strong gust that must have come from behind below (The influence of gusts on longitudinal stability is described in detail later in a separate chapter). Phases 1-3 then proceed in the same way as in the previous videos. | This tuck initiation can also be broken down into the four phases described above. The only difference is in phase 0, where the high angle of attack is generated by a '''strong gust''' that must have come '''from behind below''' (The influence of gusts on longitudinal stability is described in detail later in a separate chapter). Phases 1-3 then proceed in the same way as in the previous videos. | ||
<br> | <br> | ||
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