We could not understand that there was anything about a bird that would enable it to fly that could not be built on a larger scale and used by man.

When we left Kitty Hawk at the end of 1901… we doubted that we would ever resume our experiments. Although we had broken the record for distance in gliding… we considered our experiments a failure.

We proved that our machine does not turn toward the lowest wing under all circumstances, a very unlooked for result and one which completely upsets our theories.

Afternoon spent on kite tests. Found lift of machine much less than Lilienthal tables would indicate, reaching only about 1/3 as much.