The voidsy 3D V-ROX system was used for the first time by a premium jet ski manufacturer. This innovative non-destructive testing system was able to provide new insights already during the development phase of the novel jet ski hull made of composite materials. Due to the high sensitivity, the bonding of the composite outer layer with the honeycomb core could be precisely localized and evaluated. This information, which was previously inaccessible, enabled our customer to improve the bonding process and increase product quality. Due to the high mobility of the sensor system, the jet ski can also be tested very easily and quickly during load tests in the field by means of a hand-held measurement. The customer could thus also detect load-related defects, such as detachment due to wave impact and material fatigue. Through the imaging analysis, the results can be easily interpreted and documented.