Unmanned Air Vehicles

The US military has a need for extreme long-duration unmanned air vehicles (UAV), and a hydrogen-powered, fuel cell-driven electric aircraft is a leading candidate. Without an internal combustion (1C) or jet engine, a fuel-cell UAV would be very quiet. Furthermore, there is the potential to electrolyze effluent water (or airborne water vapor) using solar power, giving the UAV an almost unlimited flight duration. 

U.S.) Transportation Security Administration Unmanned air vehicle Urea nitrate... 

The Missile Technology Control Regime currently provides the central institutional arrangement as well as the base international norm for dealing with missile proliferation. The aim of the MTCR is to restrict the proliferation of missiles, unmanned air vehicles, and related technology for those systems capable of cariynng a 500-kilogram payload at least 300 kilometers as well as systems intended for the delivery of weapons of mass destruction. ... 

Mesicopter Microair vehicle (MAV) Microdrone Miniature unmanned air vehicle (UAV) Unmanned rotorcraft... 

Thomas JP, Keennon MT, DuPasquier A, Qidwai MA, Matic P (2003) Multifunctional structure-battery materials for enhanced performance in small unmanned air vehicles. In Proceedings of the 2003 ASME international mechanical engineering congress and R D exposition, Washington, DC, IMECE2003-41512... 

Nelson, D.R., D.B. Barber, T.W. McLain, and R.W. Beard. 2006. Vector Field Path Following for Small Unmanned Air Vehicles. Pp. 5788-5794 in Proceedings of the 2006 American Control Conference, Minneapolis, Minn., June 14-16, 2006. 

The aerospace community has adopted the term unmanned aircraft system (UAS) to replace unmanned air vehicle (UAV), because a contemporary unmanned aircraft is a complex system of tightly integrated hardware and software that typically supports data acquisition, processing, and communication rather than cargo transport. 

Currently, there is a lot of interest in developing power sources in the 10-100 W range for portable power applications (Kundu et al, 2007 Service, 2002). One promising approach involves the use of a reformer that produces hydrogen from a hydrocarbon source, coupled with a fuel cell stack that utilizes the hydrogen to produce power. Such a device can be used to power radios, computers, electronic displays, and small unmanned air vehicles (National Research Council, 2004 Office of the Secretary of Defense, 2005). 

Batteries Best Suited for Drones and Unmanned Air Vehicles... 

American Society for Testing and Materials (ASTM) F2395, Standard Terminology for Unmanned Air Vehicle Systems. 

ASTM F2411, Standard Specification for Design and Performance Requirements for an Unmanned Air Vehicle Sense-and-Avoid System. 

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