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Icaro Laminar 13 MRX: Difference between revisions
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→Analysis of the U2 video
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In addition, the pilot pulls-in more, which results in a very negative moment (point 2). The diagram of the U2 clearly shows that phase 1 is much more dominant compared to the Sensor. The area under the moment curve is huge due to both the range of the angle of attack and the more negative moment (max. pulled-in). | In addition, the pilot pulls-in more, which results in a very negative moment (point 2). The diagram of the U2 clearly shows that phase 1 is much more dominant compared to the Sensor. The area under the moment curve is huge due to both the range of the angle of attack and the more negative moment (max. pulled-in). | ||
The opposite is true for phase 2. As the pilot remains in a fully pulled-in position (green curve), the zero-crossing of the moment curve (point 3) shifts to the left to a smaller angle of attack. The area under the (positive) moment curve is therefore noticeably smaller compared to the Sensor and the decelerating effect is thus significantly reduced. No substantial reduction in the rotational speed (as with the | The opposite is true for phase 2. As the pilot remains in a fully pulled-in position (green curve), the zero-crossing of the moment curve (point 3) shifts to the left to a smaller angle of attack. The area under the (positive) moment curve is therefore noticeably smaller compared to the Sensor and the decelerating effect is thus significantly reduced. No substantial reduction in the rotational speed (as with the Sensor) can be observed in the video. | ||
But even then, the U2 would not have tucked if the pilot had stayed in front. Either he pushed-out reflexively after point 4 or, like the Sensor pilot, he was ‘pushed backwards’ by the glider due to his inertia (despite the reduced rotational deceleration compared to the Sensor). | But even then, the U2 would not have tucked if the pilot had stayed in front. Either he pushed-out reflexively after point 4 or, like the Sensor pilot, he was ‘pushed backwards’ by the glider due to his inertia (despite the reduced rotational deceleration compared to the Sensor). | ||