July 18, 2014 at 9:48 am
NASA has selected three winning designs solicited to address the technological limitations of the uncrewed aerial systems currently used to track and collect data on hurricanes.
Virginia Tech’s team of nine university seniors won first place with its Gobble Hawk.
Ii’s an aerial system consisting of two aircraft, each with a flight endurance of 7.8 days and using liquid hydrogen as a fuel source. They estimated the total cost at $199.5 million for production plus 10 years of operation and maintenance.

Full article here : http://www.aviationcv.com/pilot-forum/Thread-NASA-Names-Winners-Of-Hurricane-Tracking-UAS-Competition