Just like most of the equipment, tanks also have some limited pressure range to be followed for it not to be devastated. Excessive tank pressure and vacuum can surely cause serious problems or damage to the vessel’s structures. Generally, most of the tanks are normally designed to operate within the 200-1200 mmAq pressure range. Any…
A critical component to avoiding environmental or economic damage during a marine catastrophe is the ability to respond swiftly and appropriately in the aftermath of an accident to save all or a section of marine property that is in peril. Marine salvage is the saving of a ship, its cargo, or any other marine property…
Have you ever seen a boat at a boat show or even in a marina where there are no outboard motors or propellers mounted when you look at the back of the boat? Consequently, how do these boats move without any of these? These boats employ water-jet propulsion systems and are situated at the stern…
Can you identify the difference between and compare carbon fiber vs fiberglass? Contrary to what many people think, they are not the same thing. Both carbon fiber and fiberglass are composite reinforcing materials. Although both carbon fiber and fiberglass are composite materials, the fundamental distinction between the two is that while carbon fiber is created…
The question of how submarines work might be like magic for the general public, no one can even imagine how a submarine that is so massive can perform the miracle of submerging and then rising to the surface again. So, what is a submarine? A submarine, or “sub,” is a special kind of vessel that…
The vast world’s oceans hold unprecedented mysteries, among them being deep trenches. Ocean beds have valleys, plateaus, flatlands, and mountains, similar to the earth’s surface. Such features have led to the deepness of the world’s oceans, most of which haven’t been explored. The trenches are created when shifting tectonic plates slip below other plates. These…
When it comes to dangerous day jobs, there probably isn’t a list that isn’t complete without workers who are stationed on an oil rig. From handling dangerous equipment to falling hazards, there is a lot about working on these installations that can be a hazard to your health. However, those risks are more often than…
Ships traveling through water create resistance to their forward motion. This resistance is called drag and is caused by the water molecules clinging to the ship’s hull and slowing it down. Frictional drag increases when the hull is fouled by marine growth. Historically, it was believed that painting ships below the waterline with copper coating…
An implied condition for the safe carriage of goods at sea is that such cargoes shall be delivered, as far as possible, in as good condition and order as it was when received aboard. One way to achieve safe carriage of goods by sea transport is to protect cargoes from the elements, by loading them…
A ship’s ability to navigate safely through a particular area of water depends on how the ship “sits” in the water, in other words, her underwater profile. Her underwater profile which is dependent on her draught determines how much cargo she can load. The draught of a ship determines her displacement, particularly how much underwater…