Conducting a Draft Survey on a RoPax Vessel : Finding The Ship's Lightweight
Forsberg, Mira Sofia (2024)
2024
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-202405028679
https://urn.fi/URN:NBN:fi:amk-202405028679
Tiivistelmä
This thesis was created to better understand the practical sides of draft surveys conducted onboard passenger vessels, using a lightweight survey done on the passenger vessel M/S Finlandia belonging to Eckerö Line as an example. Despite the specific example used, this thesis does not have a client.
In this thesis the process of a lightweight survey is gone through step by step, documented in such a way that even an inexperienced person outside the maritime industry can understand the main principles of it. Through this thesis a maritime student may also expand their knowledge on the subject previously learned through academic material and courses.
A Lightweight survey, the main focus of this thesis, is performed to find out the weight of an “empty” but ready for seagoing vessel. The Procedure compares the ships weight of displacement to the previous known lightweight through various inspection phases, and the results are compared to find out the current lightweight of the vessel, which can change throughout the ship’s lifespan due to possible alterations or renovations done to the vessel.
When going through the results of the survey it was agreed that the vessel’s weight changes do not exceed the mandatory requirements for stability issued by the International Maritime Organization (IMO), and therefore the vessel can continue to operate without undergoing any further testing, until the next draft survey is conducted.
In this thesis the process of a lightweight survey is gone through step by step, documented in such a way that even an inexperienced person outside the maritime industry can understand the main principles of it. Through this thesis a maritime student may also expand their knowledge on the subject previously learned through academic material and courses.
A Lightweight survey, the main focus of this thesis, is performed to find out the weight of an “empty” but ready for seagoing vessel. The Procedure compares the ships weight of displacement to the previous known lightweight through various inspection phases, and the results are compared to find out the current lightweight of the vessel, which can change throughout the ship’s lifespan due to possible alterations or renovations done to the vessel.
When going through the results of the survey it was agreed that the vessel’s weight changes do not exceed the mandatory requirements for stability issued by the International Maritime Organization (IMO), and therefore the vessel can continue to operate without undergoing any further testing, until the next draft survey is conducted.