Alejandro Isaza <<alejoisaza>>
writes:

As we give hang gliding lessons, we often have the need to signal
to each other (being far apart from each other) where the wind is coming from in
order to prepare the student for the flight and the scooter operator to begin
the tow. So we came up with this signal to easily show wind direction.

When I learned hang gliding I was taught (also in the books) to signal the wind
direction to the pilot that is about to land by running with our hands back in
the opposite direction of the wind, this is a good signal that I have use many
times, but on certain occasions this can't be done because of the terrain
itself, roads, barb wires, obstacles, the person on the ground is very busy or
other reasons.

This signal we are using is very simple and can be seen by a pilot that is about
to land from a good distance, so I want to propose to other pilots to use it and
make it a generally accepted signal to signal other pilots the wind direction
for landing:

As you see in the picture, one hand points straight up, this
only means “I am signaling the wind”, the other hand points to where the wind is
coming from, signaling it's direction.