Robert Allan Ltd. is has announced the signing of a new contract in November 2025 for the design of a TundRA 3100 icebreaking ...

Top 10: The aircraft that refused to retire ...

Can the cruise industry hit its carbon-neutral targets? A new generation of ultra-low emission vessels may hold the answer.

As a light fighter-bomber armed with 250- or 500-lb bombs, the Whirlwind was effective, proving itself in sweeps of the ...

The MAN B&W range of MC crosshead two-stroke engines covers the widest range of cylinder sizes (from 260mm to 900mm) and unit outputs (2,200 to 51,840 kW/2,960 to 70,440 hp) available from a single ...

Among the wildest sights in aviation is a high-performance aircraft taking off from a lake or the sea. The exciting ability to take off from water frees aeroplanes from needing a runway, airfield, or ...

Most of the internal combustion piston engines built for vehicles throughout history have pretty familiar core designs. The ...

Abstract: The counter-rotating axial-flux hybrid-excitation permanent magnet (PM) machine is a novel power device specifically designed for counter-rotating propeller (CRP) systems. Cogging torque (CT ...

Abstract: Coaxial bi-copter autonomous aerial vehicles (AAVs) have garnered attention due to their potential for improved rotor system efficiency and compact form factor. However, balancing efficiency ...

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