Contra-rotating propellers boost ship propulsion efficiency by over 10 percent compared to conventional designs. Read the full story at 🔗 https://sci.sx/682012081 In this video: How the propellers spin in opposite directions during a test run in the cavitation tunnel at the Norwegian Ocean Technology Centre. Credit: Norwegian University of Science and Technology 📸 Follow us on Instagram for more exciting content https://www.instagram.com/sciencex.physorg/ #MaritimeInnovation #EnergyEfficiency

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A coaxial propeller, also known as a contra-rotating propeller, is a type of propeller configuration where two propellers are mounted on the same axis but rotate in opposite directions. This design is used in various applications, including aircraft, marine vessels, and drones. Here are some key points about coaxial propellers: ### Advantages: 1. **Improved Efficiency**: By counteracting the rotational flow of the first propeller, the second propeller can recover some of the energy lost to the r

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