ALPHEN AAN DEN RIJN   SUNDAY AUGUST 11 2012 ritzdeluy@hotmail.com     www.glidinginternational.com     www.soaringcafe.com Visited yesterday the OPEN day from the glider pilot shop in combination with Schleicher  BENELUX at EPST in Maarssen. CLOUD and cloud-making-machines were some trigger words for the day and the guest speakers Bert[ jr.] and Tijl Schmelzer and Andrej Koller. In the big … Continue reading A valid QGP in SA…but just! “Cloud and cloud-making-machines!”