Tin Matulja

Izrada gantograma dokovanja na plutajućem doku

Vessels and other types of maritime objects after spending a specific amount of time in exploitation, or due to some special circumstances such as accidents, must undergo repair in a repair yard. Vessels are usually docked due to the execution of different types of work related to the underwater part of the hull or due to periodical inspections by classification society experts. Examples of those works include repairs of damaged hull, propeller work, rudder work, anti-corrosive treatment of the underwater hull part. Repair is usually performed on the floating docks upon which the vessel or some other maritime object is relatively easily raised from the sea. With the help of floating dry-docks, repair work can be performed relatively easily and efficiently. This paper explains the detailed process and activities needed for succesful execution and suggests realistic improvements to improve the efficiency of the entire dry-docking process.

Influence Analysis of Deck Equipment Positioning on Performances in Sailing

Authors in this paper presented the analysis regarding influence of deck equipment positioning and trimming, which is directly connected with sails, on sailing yacht performance in sailing. The analysis is performed by on-field measuring during sailing using specialized equipment based on RaceQs application and GPS support. The analysis is related to light wind conditions without significant waves, then to moderate wind and waves and finally to storm wind and high waves. Data collecting was performed during 30 hours of measuring and monitoring where the relevant equipment was continuously repositioned and trimmed aiming to reach more boat speed for different sailing angles. The results are processed and presented. The research was enabled with help and support of Bavaria Yachts d.o.o. Further analysis is suggested for different wind conditions and sea states.