Just a little update,
The Ballon has reached about (im guessing) 40 - 50 feet up in the air when the helium began to escape! and they discoverd a tear down the seem of the ballon, will it be able to fly? have to wait and see
Busybee my dad went to the Bristol Ballon festival and said it was fantastic! did you also go this year, and see the concert as well??