Types of Modern Anti Vibration Components Used in Piping Installations There are two basic categories of anti-vibration components, these being in-line and hanging. 1. In-line Devices Bellows These consist of a set of accordion-like steel bellows that are designed and rated for different weights of piping. The bellows are encompassed between two flanges used to bolt […]
Ship Anchor Classification Anchor Classification There are Certification Authorities such as Lloyds, ABS, and DNV who class and certify anchors for use in naval and commercial ships. There are two classifications used; HHP (High Holding Power) and SHHP (Super High Holding Power) and these are noted on the relevant certification. There are also two basic […]
Bulk Oil Cargo The standard defence put forward by a shipowner to a cargo shortage claim used to be that the loss was below or equal to 0.5% of the total cargo. This figure, which originally stemmed from the cargo insurance deductible, was used by shipowners and cargo insurers as a yardstick for in-transit losses […]
Completion of Documentation For Bulk Oil Cargoes Completion of Documentation Once calculation of the ship’s figures has been completed, the shore installation will provide a shore figure. It is generally this figure that is used on the B/L. It is most unlikely that the two figures will precisely coincide, although in practice, and in the […]
Shortage and Contamination Claims For Bulk Oil Cargoes Claims arising from the carriage of oil cargoes are often substantial and may allege either shortage or contamination or both. This chapter provides guidance on how tanker operators can minimise the risk of cargo loss or damage and defend themselves should claims arise. Oil Shortages In general, […]
Challenges with the use of exhaust gas scrubbers There are concerns associated with both of the two most popular options to comply with IMO 2020; use of compliant fuels and SOx Exhaust Gas Cleaning Systems (EGCS), often referred to as scrubbers. However, what is important is that after an incident has occurred, the maritime industry […]
Ship Watertight Integrity A ship is nothing more than a water tight container or storage compartment with its own means of propulsion. Its purpose is to load and carry cargo, whether the cargo is passengers, fish, or a host of other commodities. Each type of ship is specialised for the trade in which it will […]
How to test a hulls watertight integrity Methods of checking watertight integrity Watertight integrity features are built into naval ships. There must be regular inspections conducted on the ship and its watertight integrity features. The ship’s planned maintenance system (PMS) gives specific details for conducting the compartment tests and inspections. The Naval Ships’ Technical Manual, chapter 9880, section IV, […]
Ship concept design Unlike a market economy in which new design is a response to a perceived market need, new ship design is typically in response to an expressed need coming from such sources as the advent of new technologies, changes in world politics, new strategies and, lessons learned from previous ship development. This need […]
Maintain safe stability onboard As the nature of container ship operation, it’s tread to be lack of stability, due to Top Heavy Load, the Master shall always take special attention for her stability. Also the Master should remind factors to cause reducing stability more such as Alternating course with Big angle of Rudder, Towing by […]