Max liftable bunker

If office ask for max liftable bunker, 85% of available tank 

• voyage – distance, speed, weather, anchorage, port stay

• vessel – Dead weight tonnage, avoid overloading, draft restriction for cargo calculation

• any interal transfer done for ship stability

• as per company policy, 85% volume, no more than 90%

Bunker calculation 

• take all sounding, ROB. X 

• calualate fuel consumption for voyage  q1= daily consumption X distance / ( 24 x average speed)

• port consumtion. Q2 = daily fuel consumption x no of days

• safety margin for rough weather 15% Q1 x 0.15

• unpumpable = Q4

• Total Rob = X – ( q1 + q2 + q3) 

• Total to order = 85% capacity of each tank – Q5