
The development of low-cost unmanned aerial vehicles (UAVs) is placing greater emphasis on the relationship between component performance, system reliability, and acquisition cost. The LUCAS (Low-cost Uncrewed Combat Attack System) program is a reflection of this shift, with the U.S. Department of War (DoW) funding development and procurement activities for systems targeting a price…

An intelligence, surveillance, and reconnaissance unmanned aerial vehicle (ISR UAV) can spend hours in the air without attracting attention, carrying sensors whose value depends on remaining stable, precise, and operational long after launch. A small vibration can affect an optical image, thermal variation can alter sensor performance, a communications fault can interrupt the flow…

Fuel cells occupy a unique position in unmanned aerial vehicle (UAV) propulsion. They are not the loudest technology on the market, but for programs where endurance is the primary constraint, their performance is a crucial factor. Where a lithium battery reaches its ceiling in minutes, a hydrogen fuel cell system can sustain electric flight…