Comments by "Manuell" (@manuell3505) on "Will circular runways ever take off? BBC News" video.

  1. Hm, you're unbalanced because of centrifugal force pulling away from the circle. However steering back too much or just losing speed causes the plane to glide down toward the center of the circle. Next problem is at touchdown. If the crafts constantly changing direction does not fully comply with the circle it might go off-road. Sensor data is probably sufficient to calculate it, but I would'n let a pilot handle that. Sounds too risky. And put at least something soft in the center of the circle, just in case...
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