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

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

Researchers at SINTEF have now designed and built new measuring equipment for testing contra-rotating propellers, which are propellers that rotate in opposite directions. This could be good news for ...

Steerprop will deliver its new Contra-Rotating Propeller (CRP) azimuth propulsions to Lloyd Werft Bremerhaven GmbH for a new research vessel being built for the German Aerospace Center (DLR).Measuring ...

During World War II, Daimler-Benz explored an unconventional fighter concept built around a massive experimental V16 engine. Instead of placing the propeller at the nose or tail, the design mounted ...

In the 1930s, Italy set out to reclaim national prestige through speed. The Macchi Castoldi MC72 seaplane, powered by a massive V24 engine and contra rotating propellers, shattered world records ...

SINTEF has now designed and manufactured new measuring equipment for model testing of contra-rotating propellers. This could be good news for many large ships. “We see that propulsion efficiency ...

Steerprop will deliver its new Contra-Rotating Propeller (CRP) azimuth propulsions to Lloyd Werft Bremerhaven GmbH for a new research vessel being built for the German Aerospace Center (DLR).

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