gliders stay in the air for an hour.
gliders stay in the air for an hour.
how long do gliders stay in the air?
an hour
Na
Na
ground effect should not be confused with ridge lift when explaining how walkalong gliders stay up. ground effect involves a horizontal surface. ridge lift requires a sloping surface. in ground effect the air does not have to move relative to the ground whereas ridge lift requires the wind to be blowing horizontally against the ridge. walkalong gliders are sustained and controlled in the ridge lift produced by the moving paddle.









































section::::history.
walkalong glider