We compare the Propeller Killer high efficiency paddle with a traditional propeller to analyze performance, speed, and ...

Electrification is seen as having an important role to play in the fossil-free aviation of tomorrow. But electric aviation is battling a trade-off dilemma: the more energy-efficient an electric ...

Subscribe to our newsletter for the latest sci-tech news updates. SINTEF has now designed and manufactured new measuring equipment for model testing of contra-rotating propellers. This could be good ...

This paper by TSAW Drones discusses the need for less noise in UAVs, how these toroidals can benefit the drone industry, how these propellers came to be and how exactly they reduce the noise. Also, in ...

Multirotor drones are significantly more popular than conventional helicopter designs for many reasons, which do not include efficiency. Making use of the aerodynamic effects behind this, [Nicholas ...

U.S. airlines mostly abandoned propeller planes in the 1990s. But considerations by Embraer to build a next-generation, large regional turboprop aircraft for first delivery late this decade could jump ...

Boats are propelled forward by various power sources, such as human power, wind power, and internal combustion engines. Nowadays, even electric boats are coming onto the scene. Propulsion for ...

Charles Lindbergh made a critical decision to set the *Spirit of St. Louis*'s propeller pitch for cruise efficiency over maximum takeoff thrust, leading to significant anxiety during his uncertain, ...

Holy Boss Cap undergoing trials. Image courtesy EcoMarine Innovations About the Author: Dr. Batuhan Aktas is the CEO of EcoMarine Innovations, Futureproof Ship Design Group at the University of ...