In the last decade or so, media reports about lithium battery overheating, explosions and fires became much more frequent, leading to worries about their safety. As electronic devices increase in portability and lithium-ion batteries increase in number to accommodate these devices, battery manufacturers, standards agencies and consumers must get on the same page to ensure that battery fires and explosions stay at a respectable minimum. Continue reading
Category Archives: Aircraft Propulsion & Energy
UAVOS Tests Solar-Powered Aircraft
UAVOS Inc, a Mountain View-based company specialized in unmanned solutions, is introducing a new solution – a control system for aircrafts with a flexible wing for high-altitude unmanned aerial vehicles HAPS (High Altitude Pseudo Satellite). New flight control principles will allow to shift the geographic area of “solar” aircraft flights to more northern latitudes. Continue reading
Textron Unveils Thrust-Vectoring X5-55 VTOL UAS
Textron Systems unveiled its X5-55 vertical take-off and landing engineering testbed at the AUVSI Xponential show in Denver, Colorado, on 1 May. Continue reading
New Solar UAV Could Stay Airborne for a Year

(L-R) Paul Brooks, Managing Director, Prismatic Ltd and Michael Christie, Strategy Director, BAE Systems Air
A new solar electric unmanned aerial vehicle (UAV), which has the potential to fly for up to a year before needing maintenance, has become a step closer to reality following a new agreement between two cutting-edge British companies, BAE Systems and Prismatic. Continue reading
UMS SKELDAR Acquires Hirth Motors
UMS SKELDAR has announced the acquisition of Hirthmotoren GmbH & Co. KG (Hirth Motors), the German-based specialist global engine manufacturer for air, water and land applications. Continue reading
Interview with Karl Schudt of Sky Power
3W-International’s performance partner, Sky Power GmbH, has introduced its engine and product concept juts prior to Xponential 2018, in Denver. Karl Schudt, managing director of Sky Power GmbH, explains the company’s goals.
Northwest UAV Expands NW-44 Engine Production
From initial design through development and manufacturing, Northwest UAV created the NW-44 multi-fuel single-cylinder UAV engine to fill a gap that owner and president Chris Harris recognised in the market – reliable, fuel-efficient engines for small, professional-grade UAV. Continue reading
3W-Intl and Sky Power Expand Wankel-Engine Portfolio
The 2-disc hybrid Wankel engine SP-480 SRE hybrid is being introduced for the first time to the professional public at Xponential 2018. 3W-International and Sky Power thus continue the tradition of presenting a new Wankel engine at the leading international trade fair. Continue reading