Computational fluid dynamic (CFD) hull analysis, along with countless trials and thousands of successful applications, gives Rolla an unmatched technology database for designing world-renowned propellers. A dedicated pattern for each application assures reliability, performance and longevity. Rolla propellers can be designed to meet any classification register, including Lloyd’s Register, ABS, RINA and others.
Rolla fully submerged propellers start with software analysis of all possible shapes and inputs, including diameter, number of blades, skew, rake and more. We determine the best possible design for the application, then use CFD to fine-tune the propeller load and detect any potential cavitation or flow problems.
Rolla surface-piercing propellers are designed through systematic tunnel testing. We consider the lateral, vertical and horizontal thrusts combined with different diameter and pitch options to determine the optimum propeller for each application.
Based in the United States, Twin Disc company develops and manufactures drive systems and operating systems for both industrial and maritime applications. Since 1918, Twin Disc stands for absolute quality, craftsmanship and innovation, and is one of the leading companies in the industry. Rolla is part of Twin Disc since 2006. Twin Disc is a globally operating organization with offices in North America, South America, Asia and Europe. In the Netherlands, Esco Aandrijvingen BV is the exclusive partner of Twin Disc.