To get strong anchor points on
the beach, there are bags full of sand. There is also the
plate burried in the sand.
All to do is to dig a hole, 20
to 30 cm deep, to place there the plate with a rope fixed
on it, and to cover it with sand, caring to have the rope
running out.
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Aluminum, 2mm
thick, triangular 400x500mm with a rounded side; also used
as a showel.
Uprooting over
100kg.
The rope is fixed in the center,
or better at the third ahead of the plate. Some tie a float
to the tip of the rope, and go back to the mooring the next
tide.
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The plates do not need to be thick,
neither heavy. A plate 20x20 cm will already hold 20 to
30 kg. The uprooting force depends on the size of the plate,
of the depth of the burying, of the nature of the sand,
dry or wet.
A perforated plate has practically
the same effect than a full plate which lead to lighten
the large plates for the most powerful kites.
.  Stainless steel
plate Ø400mm, recovered from cut scraps.
Uprooting over
100kg.
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