9.(a) List FOUR factors that must be taken into consideration when determining the voyage requirements for a large motor yacht.(4)
(b) A vessel has a gross fuel capacity of 250 tonnes, 12% of which is unpumpable. The combined average sea power load of the vessel is 2700kW and the quoted specific fuel consumption, at this power load is 0.32kg/kWh.
Calculate the safe steaming range of the vessel at a speed of 15 knots.(6)
(a) Four voyage-planning factors for a large motor yacht (4)
- Fuel/endurance: usable fuel, margins/reserves, bunkering availability en route.
- Weather/routeing & sea state: forecast, seasonal patterns, shelter/alternates.
- Regulatory/compliance: clearances, customs/immigration, ECAs (fuel sulphur), MARPOL/SOLAS items.
- Crew & readiness: manning/competence, rest-hour compliance, medical/safety drills and spares/critical spares.
(Other valid factors: stability & loading, provisions/fresh water, charts & publications, SAR/port facilities.)
