Ship stability is an area of naval architecture and ship design that deals with how a ship behaves at sea, both in still water and in waves, whether intact or damaged. Stability calculations focus on the center of gravity, center of buoyancy, and metacenter of vessels and on how these interact.
Ship stability, as it pertains to naval architecture, has been taken into account for hundreds of years. Historically, ship stability calculations for ships relied on rule of thumb calculations, often tied to a specific system of measurement. Some of these very old equations continue to be used in naval architecture books today. However, the advent of calculus-based methods of determining stability, particularly Pierre Bouguer's introduction of the concept of the metacenter in the 1740'S ship model basin allows much more complex analysis.
Master shipbuilders of the past used a system of adaptive and variant design. Ships were often copied from one generation to the next with only minor changes being made; by replicating a stable design serious problems were not often encountered. Ships today still use the process of adaptation and variation that has been used for hundreds of years; however computational fluid dynamics, ship model testing and a better overall understanding of fluid and ship motions has allowed much more analytical design.
The US and Britain struck 18 Houthi targets in Yemen today, answering a recent surge in attacks by the Iran-backed militia group on ships in the Red Sea and the Gulf of Aden, including a missile strike this past week that set fire to a cargo vessel.
American and British forces have carried out a fresh wave of strikes against 18 Houthi targets in Yemen, a joint statement said, following weeks of unrelenting attacks on Red Sea shipping by the Iran-backed rebels.
The attacks have compelled shipping companies to reroute around the Cape of Good Hope, extending transit times and inflating operational costs, with potential implications for global inflation and economic stability.
The recent missile attack by Houthi rebels on a Belize-flagged ship on February 19, 2024 has dashed hopes of resolving the shipping backlog between Asia and Europe, especially as freight rates were starting to stabilize.
The Ethiopian crisis could not come at a worse time for the stability of the Horn of Africa. In nearby Yemen, the conflict between Houthi rebels and the West over shipping-lane attacks, sparked by the Israel-Hamas War, continues to escalate ...The U.S.
The limiting conditions of the lifting plan, such as wind, ship motions, slewing speed etc ... The securing points fitted to the ship must be strong enough to withstand the dynamic loads ... The ship must always comply with intact stability requirements.
... shipping industry ... He emphasized that while ballast water is indispensable for ensuring ship stability and safety, its proper treatment is crucial in preventing the spread of invasive aquatic species.
In addition to the addition of support for FSR 3 and XeSS, the update also fixes a couple of visual issues and makes stability-focused adjustments ... STABILITY Changed how FormIDs are freed when loading saves.
... have fired missiles at a British ship in the Gulf of Aden ... It said it was the first time it had observed the Houthis possessing such drones, which posed a threat to shipping and regional stability.
... ships would be targeted, Houthi-run al-Masirah TV reported on Tuesday ... It said the Houthi attacks on the international shipping in the Red Sea are casting a shadow over global stability and prosperity.