This one is firing up the air inside. Problem was the wind was in a bit of a mood, and kept trying to whip the material into the flame! At one point I decided to back up a bit, didn’t seem real safe! Luckily they got up ok! This was part of the xlta event, featuring homemade and experimental airships. (Sorry, I still want to call them balloons!) Whately, Massachusetts. May, 2009 Thanks for looking!