Gliders

I went gliding last Sunday. The take off was impressive, a 1km long cable and a winch accelerated us from 20-100km/h in 2.5sec, and brought us to 500m. We didn't find any thermal columns :( the flight time was only 9 minutes. We missed a few great "hot air bubbles", some other planes stayed in the air for 30 minutes and had to come back because other people also want to fly. One glider made 2 loopings, a few rolls and spirals. I wish I could fly with him, but that wasn't allowed for me. On good days they make longer flights and even make it to Germany, a few 100 km. They can land in fields if they run out of rising air. A good pilot only needs 30m of grass to land. A new gliders costs around 120,000 euro. Here is my flight path :), you can see lowlands on the far right.