Towing at the Pan Am Gliding Championships

You’ve completed your final checks. You look in the side-view mirror and the red flag is waving. You slowly move the Pawnee’s throttle forward and start towing the fully watered-up 18-meter competition glider down runway 36. It’s a hot, humid day and the density altitude is high. But you’re thinking, “hey, the grass has just had a crew-cut and the mud has dried out—so how hard can this be?”