Goodyear's 'aerial ambassador' blimp makes a quick pit stop in Springfield
How much helium does it take to float a Goodyear blimp? "It's a lot," Dougherty said with a laugh. "It's equal to 2.6 million party balloons." |!| Springfield
How much helium does it take to float a Goodyear blimp? "It's a lot," Dougherty said with a laugh. "It's equal to 2.6 million party balloons." |!| Springfield