Givenchev Technologies Testimonial

At Givechev Technology Ltd., we are redefining vessel propulsion with our Advanced Efficiency Marine Propeller — a breakthrough designed to enhance performance, reduce fuel consumption, and lower emissions across both maritime and submarine applications. Our mission is to help ship owners, builders, and operators achieve greater efficiency while cutting operational costs and environmental impact.

With more than 30 years of expertise in aero and fluid dynamics, and through collaborations with leading aerospace companies such as AIRBUS and Liebherr Aerospace, our team has built a solid foundation of technical excellence. Supported by three U.S. scientific publications, multiple patents, and over forty international innovation awards, we are now focused on bringing these advanced technologies to market to deliver measurable real-world benefits.

Todor Givenchev, R&D and Technical Director

Traditional propellers suffer from uneven efficiency along the blade and energy losses due to cavitation, resulting in noise and higher fuel consumption. Our patented design overcomes these limitations through a novel blade geometry that balances hydrodynamic loads, reduces vortex losses, and optimizes efficiency distribution. Using advanced simulation and cavitation-aware design methods, we have achieved energy savings between 15% and 26% compared to conventional propellers. Tested under real operating conditions, our propeller demonstrated up to 15% higher efficiency and a 3% reduction in noise, validating both performance and repeatability. Designed as a direct retrofit, it can replace existing propellers without modifying the engine or hull — offering ship operators a fast, “plug-and-play” path to decarbonization.

We are now preparing to partner with Fameline Holding Group, a global maritime conglomerate based in Cyprus, to certify and scale our technology for widespread adoption. Together, we aim to accelerate the transition toward cleaner, more efficient marine propulsion systems that combine environmental responsibility with tangible economic value.