Deborah Husby says, "It has a pressurized system. So there is another chamber on board which is filled with air and as the helium contracts, because it gets cooler or the sun goes behind the clouds, the air chamber fills up and then as the helium expands as it gets warmer, that air chamber contracts."

The Tethered Aerostat is being demonstrated to the Guard to show how it could be used in emergency situations, like last year's flooding in Central South Dakota.The device could show where people or livestock are trapped.It can also aid in wildfire fighting by boosting communication.The company says tests have shown it's capable of boosting a radio range from a couple miles up to 50.

Justin Pazera