Sandsack Sac à sable

The ballast for gas balloons is stored in sandbags.

To give out ballast, sandbags are not dropped, on empty them. Theres is a handle on the bottom of the bag, to keep it. There are eyes on the top of the sandbag for the string connecting the bag with a hook.

The picture above shows the emptying of a sandbag. The sand is falling towards the earth.

Inside the basket, the sandbags are connected to a rope. If possible, the sandbags are stored in the corners of the basket.