[ˈdəkˌtāl əˈdiSHən] 1. A sponson added to the stern of a vessel to increase waterline, add buoyancy and improve flow characteristics. 2. A man’s hairstyle popular in the 1950s in which the hair is slicked back on both sides and tapered at the nape.
What is a ducktail on a ship?
Well, the website gCaptain gives a good technical description: “A ducktail is basically a lengthening of the aft ship. It is usually 3-6 meter long. The basic idea is to lengthen the effective waterline and make the wetted transom smaller. This has a positive effect on the resistance of the ship.
Why do cruise ships have tails?
(Answer) The “Whale-Tail” is a funnel design used on Carnival cruise ships. It is actually a Carnival patent. The wings are functional as well as eye-catching. Made of a fiber glass composite, the wings are designed to help direct the flow of exhaust gases from the diesel engines, generators and other equipment.
How are cruise ships stable?
Essentially, a cruise ship stays upright because they keep all of the heaviest equipment below deck. This has the effect of keeping a low center of gravity.Round edges also increase the ship stability, preventing the vessel from swaying and rocking and passengers- from feeling seasick.
What is the purpose of a funnel on a ship?
Funnels are strategically placed above the machinery spaces to minimize the ducting, reduce weight, and provide an efficient path for the air to travel. The exhaust areas are located very high up above the decks and the pipes are angles to the aft end of the ship to properly expel the exhaust gases.
What is deck of a ship?
A deck is a permanent covering over a compartment or a hull of a ship. On a boat or ship, the primary or upper deck is the horizontal structure that forms the “roof” of the hull, strengthening it and serving as the primary working surface.
Where is the forecastle on a ship?
The forecastle and aftercastle (or sterncastle) are at the bow and stern of the vessel. A top castle was perched on masts of some ships about the 13th century. The first known castles are shown amidships or astern on Roman ships, to afford vantage points in sea skirmishes.
How big of a wave can a cruise ship handle?
According to naval architects interviewed by the BCC as part of their documentary Freak Wave, modern ships, whether they’re merchant vessels or cruise ships, are designed to withstand waves up to 15-metres.
How deep in the water is a cruise ship?
About 30 feet
About 30 feet (9 meters) of the ship sits beneath the water, which is a small percentage of the ship’s overall height. The idea of a cruise generally means sunny skies, and such ships will change their ports of call to avoid large storms or hurricanes, Collette said.
What do you call a chimney on a ship?
The chimney on top of a factory or a ship can be called a smokestack.Steam locomotives used smokestacks to release smoke and steam — the exhaust from the train’s smokebox.
Why do ships have smoke stacks?
The primary purpose of a ship’s funnel(s) is to lift the exhaust gases clear of the deck, in order not to foul the ship’s structure or decks, and to avoid impairing the ability of the crew to carry out their duties.
What is the main mast on a ship?
When a vessel has two masts, as a general rule, the main mast is the one setting the largest sail. Therefore, in a brig, the forward mast is the foremast and the after mast is the mainmast.
What is a ceiling called on a ship?
deck
The deck forms a singular central construction, acting as a ceiling-of-sorts to the hull of the vessel. However, the term deck also refers to each of the numerous levels or storeys of a ship. A ship has a number of different types of decks which are located at different levels and places on the ship.
Definition of quarterdeck
1 : the stern area of a ship’s upper deck. 2 : a part of a deck on a naval vessel set aside by the captain for ceremonial and official use.
What is bulkhead in ship?
Bulkheads are inner walls within the hull of a ship, used to separate it into smaller compartments.
Why is it called forecastle?
The fo’c’s’le or forecastle is the forward deck of the ship. It derives its name from sailing ship days when the raised forward deck was known as the forecastle. This was typically a raised, castle like structure where archers first could engage enemy ships.
What is a foredeck on a ship?
Definition of foredeck
: the forepart of a ship’s main deck.
What was the purpose of the forecastle?
It served as a platform for archers to shoot down on enemy ships, or as a defensive stronghold if the ship were boarded. A similar but usually much larger structure, called the aftcastle, was at the aft end of the ship, often stretching all the way from the main mast to the stern.
How do cruise ships survive sinking?
Stay calm. Avoid the elevators completely as electrical systems may fail, and use the stairs. Focus your efforts on finding the quickest route to the lifeboats. If the boat begins to tilt, it can make navigating the passageways confusing and difficult.
Do cruise ships have jails?
There’s a special place, however, for those who commit serious crimes at sea — the ship’s jail, or “brig” in nautical terms. These steel rooms are located on one of the bottom decks of the vessel, usually near the security office. And if you end up down there, you won’t be staying there for the duration of the cruise.
Can a cruise ship handle rough seas?
Yes, cruise ships are designed to handle rough seas. But regarding rough seas; The captain will do everything possible to avoid bad weather by steering the ship away from storms or rough seas when possible. Unfortunately it’s not possible to avoid rough seas in all cases, but don’t worry; The ship is not going to sink!
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