During World War II, Daimler-Benz explored an unconventional fighter concept built around a massive experimental V16 engine.

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 ...

Pratt & Whitney Canada (P&WC) is still working on a new turboprop engine called the PT9A-11 and is also continuing to seek certification of a new helicopter turboshaft powerplant called the PW220A.

WASHINGTON, Dec 8 (Reuters) - Scientists have observed the largest-known rotating structure in the cosmos - a gargantuan thread-like assemblage of hundreds of galaxies, gas and dark matter that makes ...

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 ...

The Baltimore Ravens are coming off a huge win in Week 8 of the 2025 season, and they’re looking to build on that as road favorites in Week 9 against the Miami Dolphins. Tua Tagovailoa had a bit of an ...

NASA has contracted Momentus to use its Vigoride orbital service vehicle as a testbed to demonstrate a rotating detonation rocket engine in space in 2026. The rotating detonation rocket engine is ...

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 ...