NASA has been studying future transport concepts, envisioned to be technically realizable in the timeframe of 20202030, to meet environmental and performance goals. One concept receiving considerable interest involves a propulsion system embedded into a hybrid wingbody aircraft. While offering significant advantages in fuel savings and noise reduction by this concept, there are several technica...

An Advanced Development Program (ADP) to develop and demonstrate effective Atmospheric Electricity Hazards Protection (AEHP) for the fighter, transport/bomber, helicopter and cruise missile classes of air vehicles is being conducted under an Air Force Wright Aeronautical Laboratories (AFWAL) contract with Boeing Military Airplane Company (BMAC). Other Government agencies are also supporting the...

There is a critical need to improve the performance and utility of unmanned aerial vehicles (UAVs). Several areas of UAV performance need to be improved for the next generation of UAVS to be used successfully in expanded future combat roles. For example current time aloft is only on the order of an hour or two for electric-powered UAVs. The current generation of UAVs lacks vertical takeoff and ...

AbstrAct: The Operational Modal Analysis technique is a methodology very often applied for the identification of dynamic systems when the input signal is unknown. The applied methodology is based on a technique to estimate the Frequency Response Functions and extract the modal parameters using only the structural dynamic response data, without assuming the knowledge of the excitation forces. Su...

The feasibility of regional electric aviation to reduce environmental impact highly depends on technological advancements energy storage techniques, available battery density, and high-power motor technologies. However, novel airframe technologies also strongly affect the a aircraft. In this paper, influence was investigated. Three game-changing were applied all-electric aircraft: active flow c...

The new progressive smart technologies announced in the fourth industrial revolution aviation—Aviation 4.0—represent possibilities and big challenges aircraft maintenance processes. main benefit of these is possibility to monitor, transfer, store, analyze huge datasets. Based on analysis outputs, there a improve current preventive processes implement predictive These solutions lower downtime, s...