Ответ в теме: Обсуждение необходимости сертификата в обучение кайтбордингу

[Александр]

Ну а почему бы и не 70 метров???

Why not with 70m lines?
The friction of the wind on 70m lines is so great that
the distance to pull on the bar and make the line
straight again is bigger than the bar travel range.
When piloting the rider acts only on the line and not
anymore on the kite. Going upwind becomes very difficult
since the total line drag added to the kite force
results like an apparent wind that doesn’t permit riding
up wind.