Isabel had to make a hot air balloon for class. She made hers a little larger than average. She also has a spill line attached to the top of the envelope to flip it upside down and release all the hot air so it doesn’t fly away.
Four 9’x15′ panels attached to a top 3’x3′ square (to create 9×9 cube). It was too windy at a mere 6 mph to attempt to inflate today.
