Bulk Cargoes

Question 1

What cert if required for loading Grain?

Answer 1

Document of Authorization for Loading Grain

Question 2

Who issues a DOA for Grain and how long is it Valid?

Answer 2

DoA issued by Flag and Valid for life of ship (Unless any major structural changes).

Question 3

If a vessel does have a DoA for Grain, under what conditions may she load?

Answer 3

The master must prove the following to the Competent Authority at the Load Port.

-The total weight of Grain loaded does not exceed 1/3rd
the Deadweight of the Ship.
-Prove the vessel meets the Stability requirements of the Grain Code to Comp Authority at load port.
-Secure the grain in a Partially Filled Compartment as
per the Grain Code.
-Minimum GM 30cm.

ie Bundling, Over Stowing, Saucering and Strapping/Lashing

If full must be trimmed level and have a centerline division. (Full length of Compartment and 2.4m deep)

Question 4

What is a major danger associated with shipping high density cargoes?

Answer 4

High permeability - Amount of space in the cargo holds not occupied by cargo.
This is directly responsible for progressive flooding.
Progressive flooding is responsible for the disappearance of Bulk Carriers- One hold gets breached and easily spreads to other holds.