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Rivières et lacs vaudois : évolution 1980-2000

Moins de phosphore, d’azote et de matières organiques : en 20 ans, l’état de santé des lacs et cours d’eau vaudois s’est nettement amélioré même s’il n’est pas encore revenu au niveau des années 40, état de référence en la matière.

De nouvelles substances toxiques, comme les pesticides ont fait leur apparition ces dernières années, nécessitant l’élaboration et l’application d’autres mesures, en plus de celles liées à l’épuration des eaux usées. Continuer la lecture Rivières et lacs vaudois : évolution 1980-2000

Centering the Thermal

When entering a strong thermal, you feel yourself swinging forward under your wing and being pulled up.
You must reduce you braking and give your wing speed during this phase. If you initiate a hard turn at this time, you risk a Spin (Recovery)…
Once installed in the thermal, reduce your speed but not more than minimum sink rate speed.
More important than using your wing’s best sink rate, you must concentrate on Centering the Thermal (using a Vario). When exiting a thermal, get ready to control the dive of your wing (ahead of you), by increasing the braking during the wing’s dive (release the brakes when the wing is at its most forward point)

If one follows the indications of his variometer : If it indicates an increase in the climb rate, open up your turn (you may even go straight). If the rate of climb diminishes, tighten your turn as we would otherwise be moving away from the center of the thermal.

There is no need to delay your response to your variometer, since it typically indicates the average over the last second of readings.
This technique is good for wide thermal lift without a sharp increase in climb rate at its center.
It can also serve to find better thermal cores when multiple thermals merge with altitude.
Photos

Source: Jérôme Daoust

Steam Navigation on Lac Léman

The Belle Époque was the heyday of the
Compagnie Generale de Navigation sur le Lac Léman

The appointment of a new technical director, who was determined to replace the ‘floating restaurant’ image of some of the earlier boats with vessels having a more nautical character, and the influence of a naval engineer hailing from the Faroe Islands, led to the construction of the beautiful vessels which we see on the lake today. Continuer la lecture Steam Navigation on Lac Léman

World Cup 2001 (PWC)

Winner: Patrick Bérod (France)
2nd overall: Jean-Marc Caron (France)
3rd overall: Peter Von Kaenel (Switzerland)

1st Woman: Louise Crandal (DK)
2nd Woman: Petra Krausova (CZ)
3rd Woman: Nicole Nussbaum (CH)

1st Contructor: Gin Gliders
1st Nation: Switzerland

Source: pwca.org