0
Sailing
Questions about wind-propelled water vessels, their maintenance, handling and rules governing their use.
2,485 Questions
How many boats are there in the world?
"There is no way that someone has gone around and counted all the boats on earth." Wow, people with the most basic of thought should disregard this morons answer. If one could request all vessel registrations (DMV, etc) (as no registration is not legal to be on the water) you could actually get a "what's legally on the water" at that time. It is a fair question that has a potential answer. Someone just needs to ask DMV in the USA for an answer to how many are registered here. Get other countries to account and we would know. :)
Where is the stern and aft on a ship?
The stern is the back end of the ship, the bow is the front end of the ship.
Aft means close to or toward the stern of the ship eg Move the luggage aft
Forward means close to or toward the bow of a ship. eg Move the luggage forward
How long has sailing been around?
Pre-history. They think it goes as far back as using a basket or log for a boat and using a woven basket-material for a sail. Anyone who has paddled a boat with a strong wind at their back has realized that with a bit more of something to catch the wind they need not paddle at all.
It is the name of a wooden sailing ship from china?
The most common name for a Chinese wooden sailing ship that I can think of is the Junk. High bow and stern, various rigging of sails, more of a coaster than a blue water vessel.
Whenever the boat is underway properly sized PFDs must be worn by children of what age in Hawaii?
In Hawaii, children 12 and under must wear a properly fitting PFD while underway!
A sailboat and a PWC are meeting head on which one is the give way vessel?
A PWC is a Power Driven Vessel so she must give way.
How should you pass red buoys under the Inland Rules?
Under the Inland Rules, red buoys should be passed on your starboard side when going upstream. They mark the left hand side (port) of the navigable channel when you are 'outbound,' and they will be on your right had side (starboard) when you are 'inbound.' (RED = RIGHT = RETURN)
How can I stop ropes freezing?
As a (hopefully) logical thought, given that water freezes, ropes do not unless saturated with water, a wax coating that keeps water out of the rope very probably would keep the rope pliable.
What ship is bigger than a caravel?
The carrack was a ship type invented in southern Europe in the 15th century, and was one of the most influential ship designs in history. It was a larger vessel than the caravel. Columbus's ship, the Santa Maria was a famous example of a carrack.
What do the different buoys mean?
Buoys and Buoyage systems are harmonised for safety purposes. There are two Regions A and B. The regions differ only in the use of green or red for lateral marks. Region A has red port hand markers whilst region B has green for the port hand.
There are five basic types of marks used, for navigation and safety they are;
Lateral marks.
Region A. Port hand marks are red,, can or spar shaped. If a topmark is fitted it is a single red can. Lights are, red any sequence. Starboard are green, conical or spar shaped, a topmark is a single green cone, point upwards. Lights are green, any sequence. Lateral marks may be numbered sequentially along the channel, even to port, odd to starboard.
Cardinal marks
Mark unsafe or dangerous areas. They are pillar or spar shaped painted black and yellow and always carry a double cone topmark, the orientation of the cones indicate the direction of the hazard and which side to pass it. The lights are white and are either quick or very quick.
Isolated danger marks
These marks are black with one or more horizontal red bands, they are pillar or spar shaped, lights are white flashing twice, with a topmark of two black spheres.
Safe water marks
These are spherical, pillar or spar shaped with a red spherical topmark. They are painted with red and white vertical stripes. Any light is white, occulting, isophase, Morse A or single long flash every 10 seconds.
Special marks
Are not primarily to assist navigation but indicate a special area, examples are, water ski area, underwater cables, outfalls, etc. They are yellow, any shape not conflicting with lateral or safe marks, topmark is a yellow X. Any light is yellow and the rhythm not used for white lights. For grave danger the marks may be duplicated.
In addition there are such things as mooring buoys. These are purely local and the authority in charge should ensure they cannot be confused with navigational buoys.
They are many colours and shapes, some of which are of local significance, so it would be important to find this information beforehand. For instance green cones may be private mooring areas.
The disadvantages of sailing a trireme?
They don't point well to weather. When they capsize they don't come right side up on their own like a monohull.
You need to enslave at least 100 oarsmen if you want it to go anywhere. I'd recomend a small sailing dinghy or catamaran by Hobie Sailing. Do you mean Trimaran? A trireme is an ancient Greek/Roman warship that was oar driven!
Answer 1
A buoy is anything that's used to provide flotation (buoyancy) to another object.
Some buoys are tethered and allow navigational aids to float in place, others (sonobuoys, radiobuoys) are free-floating or tethered to objects suspended in the water column (like fishing nets).
More examples are listed below, all of them have the common purpose of providing buoyancy.
________________________
Answer 2
A buoy is a floating object in the water that is anchored to the bottom of the body of water.
Bouys have two main purposes.
The primary purpose is a navigation aid. They mark channels into harbors and deep water channels in rivers as well as mark off hazards and specific areas. "Red, Right, Returning" is a phrase that sailors use to remember that the red bouys should be on the starboard side of the channel and the green ones on the left when coming into the harbor. They may or may not have lights and/or sound devices (a bell being common) on them.
There is also the anchor or mooring bouy that is found in harbors and lakes so that the owner of the bouy's boat can attach a rope for mooring purposes.
Formula for area of triangluar sail?
If the sail is a right triangle (that is, if the angle formed by the base of the sail and the part that runs up the mast is 90 degrees), then the area of the sail is 1/2 times the base times the height.
In navigation, there are two primary types of course lines that can be plotted, a great circle and a rhumb line. The great circle provides the shortest distance between any two points on the globe, but requires that the course (and headings) be continuously adjusted. A rhumb line results in a longer distance to travel, but allows for a constant course (or heading) to be maintained. By definition, a rhumb line (also known as a loxodrome) crosses all meridians at the same angle.
What color buoy is designated as a mooring buoy?
There is no internationally agreed colour for a mooring buoy. A local chart should be consulted to find the position and use of buoys. For small water craft they tend to be made of plastic, look much like a fender and have a handle on the top.
For larger vessels they are, steel, either painted black or yellow, cylindrical, horizontal, have mooring rings and have wooden fendering on them.
A ship is a water-borne vessel larger than a boat, distinguished from a boat usually by being submersible.
Other information can help if you travel by sailboat?
cxmnxbxbfdjfnnc,mzmlkmfkgmdkfmlg,z/.s;g;xd
dldfllfl,h.dl;g.zdm;zS"
q6-=021i04wqrs
KSKRRE[FE0FDZPR-3R \=q]tpg=wof.s. ][a.
