THIS VIDEO IS ABOUT FLYING THE LET L-23 SUPER BLANIK AT SEMINOLE LAKE GLIDER PORT, SEMINOLE LAKE AIRPARK IS HOME TO A GLIDER SCHOOL. FLYING WITH JAN DRIESSEN. HE HAS OVER 13,000 HOURS IN GLIDERS. HE HAS GRADUATED OVER 500 STUDENTS. IN THIS VIDEO WE ARE PULLED TO 3000 FEET BY A PIPER PAWNEE TOW PLANE.