[SatNews] U.S. Air Force researchers are asking industry to build a hybrid-powered manpackable unmanned aerial vehicle (UAV) that weighs less than 20 pounds and is able to carry a 4-pound electro-optical payload on missions over rough terrain lasting at least four hours. This small UAV must be able to be carried and operated by only one person on battlefield situational awareness missions.

The Air Force Research Laboratory at Wright-Patterson Air Force Base, Ohio, released a broad agency announcement (BAA-11-01-PKP) last Friday for the Small Unmanned Renewable enerGy long Endurance Vehicle (SURGE-V) program. The goal is to develop a hybrid power/propulsion system for small UAVs. The SURGE-V hybrid-powered UAV must be able to land on rough terrain, and operate in winds stronger than 35 knots, in temperatures as cold as 30 degrees below zero Fahrenheit, and at altitudes as high as 25,000 feet in sandy, dusty conditions, as well as in fog, light rain and snow, and high humidity. The SURGE-V program is in three parts. First, the program seeks to design a hybrid propulsion system that runs on renewable energy. Second, the program will concentrate on demonstrating the integrated power system and payload on a SURGE-V UAV. Third, the program will conduct flight demonstrations of the integrated system. The total cost of the program will be about $2.2 million, Air Force officials say.