NASA ERAST Program
The Environmental Research Aircraft and Sensor Technology, or ERAST program was a NASA program to develop cost-effective, slow-flying unmanned aerial vehicles (UAVs) that can perform long-duration science missions at altitudes above . The project included a number of technology development programs conducted by the joint NASA-industry ERAST Alliance. The project was formally terminated in 2003. Program overview According to NASA, "ERAST was a multiyear effort to develop the aeronautical and sensor technologies for a new family of remotely piloted aircraft intended for upper atmospheric science missions. Designed to cruise at slow speeds for long durations at altitudes of , such aircraft could be used to collect, identify, and monitor environmental data to assess global climate change and assist in weather monitoring and forecasting. They also could serve as airborne telecommunications platforms, performing functions similar to communications satellites at a fraction of the cost of lofting a satellite into space." The ERAST program was sponsored by the Office of Aeronautics and Space Transportation Technology at NASA Headquarters, and was managed by NASA Dryden Flight Research Center. The NASA Ames Research Center, Moffett Field, California, headed the sensor technology development. The NASA Lewis Research Center, Cleveland, Ohio, and NASA Langley Research Center,