Before attempting to fill the balloon, ensure all components are secured well using tape or fasteners of your choice.



Attaching and filling the ballon is one of the more challenging portions of the process. First off, bare hands or skin should never touch the balloon as this could compromise the latex. Latex or nitrile gloves are a must, as even fabric ones can hurt the delicate membrane. The amount of helium to use depends on the particular balloon and the desired burst altitude. This can be calculated from online tables and applications. As for it's attachment, this should also be performed with the utmost care. The tie around the neck of the balloon needs to be tight in order to keep helium from escaping or worse, your balloon from escaping. Multiple knots are a good idea. However, over tightening can damage the balloon and should be avoided. The cord coming off of the balloon should be attached to the fabric loop on the upper side of the parachute. This will keep the parachute completely condensed on the ascent, but allow it to open as soon at the balloon bursts.











