![](https://web.archive.org/web/20141216063818im_/http://osimint.com/wp-content/uploads/2014/03/Altaeros-BAT-274x104.jpg)
The Altaeros Energies Buoyant Airborne Turbine
Meet the Buoyant Airborne Turbine (BAT), developed by Altaeros Energies, a four-year-old company founded at the Massachusetts Institute of Technology. In essence, the BAT is a 60-foot-diameter helium aerostat with a lightweight three-blade-rotor spinning inside. As you would expect, the BAT can take to the sky at heights around 2,000 feet, but unlike other aerostats, the BAT is […]