High-fidelity simulations demonstrate how the number of blades affects the wakes of rim-driven thrusters.

Abstract: A contra-rotating propeller (CRP) offers higher propulsion efficiency compared to a single propeller. This article presents a novel underwater CRP propulsion system that integrates a ...

Abstract: Accurate estimation of propellers rotation rate is crucial for effective radar classification of drones and provides quite valuable information on its potentialities. This paper investigates ...

Cade Cunningham and the Detroit Pistons have lost four games in a row, and their lead atop the Eastern Conference has dwindled in the process. Detroit is just 2 ...

When you're at an airport and see propeller aircraft, you likely think it is powered by a piston engine. This is usually true among smaller planes, like the Cessa 172 Skyhawk and the Piper Archer, or ...

Why do falling cats always seem to land on their feet? Scientists have been arguing about the precise mechanism for a very long time—since at least 1700, in fact—conducting all manner of experiments ...

What is EGM Propulsion introducing to the commercial marine propulsion market with its modular propeller system? Wayne ...

During World War II, Germany built one of the most enormous transport aircraft ever flown: the Messerschmitt Me 323 Gigant. With six engines, counter rotating propellers, and a wingspan of more than ...

Polish-born Leeds Rhinos prop Mikolaj Oledzki has emerged as a forward option being strongly considered as the Bears shape ...

Lockheed’s AH-56 Cheyenne was designed as a compound helicopter that could fly like an airplane while hovering with heavy weapons, built around a rigid rotor, stub wings, and a rear pusher propeller.