McCauley's C1106, a 5-blade composite propeller for the Beechcraft Denali and GE Catalyst engine, successfully completed critical vibration testing. This milestone marks a significant step towards ...

The effects of the ground on propeller noise have been measured experimentally for the very first time by researchers in the Aeroacoustics research team at the University of Bristol. In findings, ...

EARLY in 1936, at the instigation of the National Physical Laboratory, the Singing Propeller Committee of the Institution of Naval Architects included among other recommendations in its report a ...

European researchers have concluded – perhaps unsurprisingly – that noise and vibration are the biggest sources of passenger discomfort in turboprop aircraft. And they stress that such issues must be ...

Retrofit programme is delayed for tests to show if vibration affects Hawkeye's turboprop engine or avionics The US Navy's programme to retrofit new eight-blade propellers to its Northrop Grumman E-2C ...

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 ...

Nautical disruptor Sharrow Marine has been hard at work fast-expanding its lineup of innovative twisted-loop propellers, releasing tweaked models for new applications while also ramping up overall ...

As the international shipping industry continues to explore measures to conserve and protect underwater life, the International Maritime Organization (IMO) is proposing the future monitoring of ...

Lusitania’s four propellers created rhythmic pressure shocks that could line up with the hull’s natural resonant frequency, turning the bow and stern into uninhabitable vibration zones at speed. We ...