Abstract: This paper presents a noise and vibration analysis of a contra-rotating propeller (CRP) underwater electric propulsion system integrated with a permanent magnet synchronous motor (PMSM) and ...

Abstract: This paper presents a nonlinear model predictive control (MPC) architecture for low-head contra-rotating reversible pump-turbines (CR RPTs) in turbine mode. The developed MPC is compared ...

ca glues (Cyanoacrylate) are really nice for balsa wood builds, this material is very classic in the construction of rc airplanes and is still in use today, but other material are also used, so we're ...

At CES 2026, Flywing Aero Technology showcased an RC aircraft that reframes what hobby flying can feel like. Instead of prioritizing cinematic aerial footage, the company designed its latest platform ...

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 ...

An inside look at shaping an aircraft propeller from birch wood, focusing on material selection and precision craftsmanship. Why is wood still used in certain propeller designs today? Another war on ...

The F/A-18C was the result of a block upgrade in 1987 of the original F/A-18A. BHPian skanchan95 recently shared this with other enthusiasts: 1:72 McDonnell Douglas F/A-18C Hornet VFA-34 "Blue ...

本研究针对对转螺旋桨(CRP)在产生相同总推力时，其声场特性是否优于常规单转子螺旋桨(FRONT/REAR)这一关键问题，通过大涡 ...