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Old 05-10-2009 | 08:01 AM
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Villa
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From: Wilson, NC,
Default RE: A visual perception problem at the runway.

Hi Alex7403
The description in your initial post is excellent. After I realized I was making made many crashes due to stalling during the landing, I did some heavy studying of what was happening. I was mainly crashing when I was landing at an angle to the left/right runway due to a cross wind. Since normal depth perception is only about 17 feet, and I always landed further than 17 feet away, I suddenly realized that when I landed at an angle I did not know where the plane was in height, relative to the runway. In addition, when I land at an angle, I completely loose my sense of "rate of decent" (I don't know how fast/slow I am approaching the ground). Furthermore, with the plane coming in at an angle, I completely loose my sense of ground speed of the plane. I addition, coming in at angle completely destroys my sense of "angle of flare". I searched for a solution and this is what I do now: I only land right-to-left or left-to-right. If the crosswind is terrible I will point the nose a little into the wind. On every landing, I do my best to touch down directly in front of me as I am facing directly across the runway(at a right angle to the runway length). By landing in front of me, I have a better, and constant view, of the plane attitude, ground speed, rate of decent, and flare angle. For those that wish to point out that the plane cares nothing about ground speed, only air speed, I point out that we fly our planes without the instrumentation to know air speed, and instead substitute other input to arrive at a safe landing. Yesterday I had my SPAD Swept Wing OS46FX size Canard out and the wind was terrible. Gusts to 20MPH and direction all over the place. The landings all looked like slightly controlled crashes, yet just before main wheel touch down the plane calmed down a little and each landing was good. All landing close to "directly in front of me".