Superyacht vocabulary & Seamanship terms

Cheat sheet?- Module 1 Super yacht basics and vocabulary?

?This is the cheat sheet for Module 1 of the Yachting Masterclass where we learn about Superyacht basics and seamanship terminology.

These are the notes written from the presentation, after every module participants get these notes which are exclusively for them but I am sharing the first cheat sheet publicly to give you an idea of what we learn at the Yachting Masterclass.

Boat vs yacht

Boat = you can drive yourself

Superyacht => a yacht over 24m

Submarines = also called boats in the navy

A knot is a unit of speed used in navigation, equal to one nautical mile per hour (approximately 1.15 miles per hour or 1.85 kilometers per hour).

Mast Lights: Yachts that are less than 50mt do not need a forward Mast. Hence if you are sailing at night and you see a boat with two white lights one on a smaller mast and one in a larger mast you know that the boat is over 50 meters long.?

Masts are not only for navigation lights but they also have the exhausts and sometimes hold antennas?

A land mile and a nautical mile are not the same. a land mile is primarily used for measurements on land, while a nautical mile is used for navigation and measurements at sea.

A nautical mile is a unit of distance used in maritime and aviation navigation, as well as in meteorology.

It is defined as one minute of latitude, which is approximately equal to one arcminute of a great circle on the Earth's surface.

1 nautical mile: 1,852 meters?

The nautical mile is based on the Earth's longitude and latitude coordinates, with one nautical mile equaling one minute of latitude.1 nautical mile = 1 minute of latitude?

A flybridge is only when the yachts has 2 decks, if a yacht has 3 or more the upper deck is often called the sundeck.?

A rudder is a steering part used to turn left or right?

The bilge is the lowest part of the ship?

RADAR stands for: Radio Detection And Ranging

Bulkheads are inner walls within the hull of a ship, used to separate it into smaller compartments.

ECR = Engine control room?

Muster station= an area of a ship where passengers are directed to assemble in an emergency.? - main deck aft?

Do not confuse Depth with Draft

Depth and draft are both measurements related to the underwater dimensions of a yacht, but they refer to different aspects. Depth: The depth of a yacht refers to the distance from the highest point of the boat (usually the deck) to the lowest point (usually the keel or the bottom of the hull). This measurement is important for determining the overall height of the yacht and ensuring that it can safely navigate in waters with a certain depth.

Draft: The draft of a yacht refers to the vertical distance from the waterline to the deepest point of the boat's keel or hull that is underwater. Draft is an important measurement for determining how deep a yacht sits in the water and how much clearance is needed to navigate shallow waters. A yacht with a deeper draft may be more stable in rough seas but may be limited in where it can travel due to shallow waters.

Do not confuse a Ton with a Tonne?

Ton = mass, Tonne = weight

1 ton =? 2,000 pounds (approximately 907 kilograms).

1 tonne? =1,000 kilograms or approximately 2,204.62 pounds.

While both "ton" and "tonne" can be used to refer to units of weight or displacement in the context of yachts, "ton" may be used in various ways depending on historical conventions or regional practices, while "tonne" specifically refers to a metric unit of weight. It's important to clarify the specific unit being used in any given context to avoid confusion.

Gross Ton (GT) is important because yachts must adhere to various regulations depending on the GT, important numbers are:

• 200GT
• 500GT
• 3,000GT

Yachting Etiquette

·? Let people disembark firstly, and then embark

·? Ask: “where is the dayhead?” instead of “where is the toilet?”

·? Remove shoes when on board

Rule of the Road / Collision Regulations

·? If a boat is passing by your starboard side, you need to let her go first

Sewage system – fresh (the boat makes it), grey (shower water & galley water) & black water (toilet water)

• Grey water is the most polluting one
• Nobody (including engineers) should be bare feet in the engine room

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Anatomy of a yacht

·? Starboard = right hand side of the vessel (Green light)?

·? Portside = left hand side of the vessel (red light like port wine)?

·? Stern = back of the boat

·? Bow = front of the boat

·? Stem = tip of the bow

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Crane = is lifting things

Scuppers = where water drains

Midship = middle section of the yacht

Leeward: the direction away from the wind.

Wethead: a dayhead witha shower?

Gunnel = where water is splashing on decks (limite)

Hatch = everything that opens from the floor

Hotel load => hotel ongoing services (fuel, ac, weight,etc)?

Transducer => regarding depth, is aa sensor that converts physical parameters such as depth, temperature, or speed into electrical signals for navigation or monitoring systems.

Muster station => location on a yacht? where to gather when in danger

Moulded beam: the maximum width of a vessel's hull, measured at its widest point excluding any exterior fittings or bulges.

Capstans => anchor chains stay around these

Cathodic protection => against corrosion

Aft = stern = back of the boat?

Lazarette = Extra garage for storage

GA = General Arrangement sideways drawing profile drawing

Scuppers= Drainage on deck

Bullwarks= ?Kind of fence on the side of the yacht

Forepeak= Storage in the bow for ropes, fenders etc.

Trims:? Impacts the pitch of the boat

Bunkering:Fueling

Leeward: Side of the boat that doesn’t catch wind

Cathodic protection:Anodes or electric powered hull

Transducer: Puts signal trough from the bottom to the hull to the bridge (LOG & depth)

Dayhead:? WC

Forecastle: ?forepeak

Gunnel: Gunwail, where the bulwark meets the deck

Muster station: Space on board where everyone goes in case of emergency, usually main deck aft

Hotel load:General need of power when anchored

Boom crane: Crane with boom for tenders (in garage or deck)

Capstans: A winch that doesn’t wrap ropes or chains around itself

Lightship: :ship not loaded

Deadweight: ship fully loaded

TPC: Tons Per Centimeter, changes throughout the trip

Plimsol mark: Saltwater mark for depth

Explosive bonding: ?welding of aluminum and steel to prevent corrosion, bi-metallic joint: 2,5 cm combination of both materials

Twin Screw: Twin screw refers to a propulsion system on a vessel that utilizes two separate propellers, each driven by its own engine or motor. These propellers are typically mounted on the vessel's hull, with one located on each side.?

Twin screw propulsion offers several advantages, including:

• ?improved maneuverability
• ?redundancy in case of engine failure
• ?and increased efficiency at lower speeds.
• ?By independently controlling the speed and direction of each propeller, twin screw propulsion allows for precise maneuvering, making it particularly useful in confined spaces or challenging docking situations.

The IALA (International Association of Marine Aids to Navigation and Lighthouse Authorities) rules for lights, also known as the COLREGs (International Regulations for Preventing Collisions at Sea), provide guidelines for the lights that vessels display to avoid collisions.

For yachts, the IALA rules specify the types of lights that must be displayed depending on factors such as the vessel's size, type, and whether it's underway, at anchor, or engaged in certain activities. These lights help other vessels determine the yacht's position, direction of movement, and status, thus aiding in safe navigation.

Reverse osmosis (RO) is a water purification process used on yachts to produce freshwater from seawater. In RO systems, pressure is applied to seawater, forcing it through a semi-permeable membrane that removes dissolved salts, minerals, and other impurities, leaving behind clean, potable water. This process effectively separates the freshwater from the concentrated brine, producing high-quality drinking water for onboard use. RO systems are popular on yachts due to their efficiency, compact size, and ability to provide a reliable source of freshwater during extended voyages at sea.

?Anti-fouling on yachts refers to the process of applying coatings or treatments to the hull to prevent the accumulation of marine organisms such as algae, barnacles, and mollusks. These organisms can attach to the hull and grow rapidly, increasing drag and fuel consumption, as well as potentially causing damage to the hull surface.

Traditional anti-fouling paints often contain biocides, such as copper or tributyltin (TBT), which are effective at deterring marine growth but can also have harmful environmental impacts. When these paints wear off, the biocides can leach into the surrounding water, causing pollution and harm to marine life.

In recent years, there has been a shift towards more sustainable anti-fouling solutions for yachts. These new solutions aim to minimize environmental impact while still effectively preventing marine growth. Some examples include: Non-toxic coatings, Silicone-based coatings, Ultrasonic anti-fouling systems: Hydrophobic coatings

The "rules of the road" for yachts refer to the International Regulations for Preventing Collisions at Sea (COLREGs), which outline the rules and guidelines for safe navigation and the prevention of collisions on the water. These regulations are established by the International Maritime Organization (IMO) and are essential for all vessels, including yachts, to follow. Here are some key rules relevant to yachts:

1. Rule 5 - Lookout: Yachts must maintain a proper lookout by sight and hearing, as well as by all available means appropriate in the prevailing circumstances and conditions.
2. Rule 6 - Safe Speed: Yachts must operate at a safe speed at all times, taking into account visibility, traffic density, maneuverability of the vessel, and the prevailing circumstances.
3. Rule 9 - Narrow Channels: When navigating in narrow channels, yachts must keep to the starboard (right-hand) side of the fairway, unless otherwise specified by local regulations or signals.
4. Rule 10 - Traffic Separation Schemes: Yachts must comply with any traffic separation schemes established by the competent authorities and navigate within the appropriate traffic lanes.
5. Rule 12 - Sailing Vessels: Yachts operating under sail alone must give way to vessels propelled by machinery. However, if two yachts are sailing, the windward yacht shall give way to the leeward yacht.
6. Rule 13 - Overtaking: Overtaking vessels, including yachts, must keep out of the way of the vessel being overtaken and shall navigate in a manner not to impede the safe passage of the overtaken vessel.
7. Rule 18 - Responsibilities Between Vessels: This rule outlines the responsibilities of vessels to avoid collisions. For example, vessels must keep out of the way of other vessels in certain situations, such as when approaching head-on or crossing paths.
8. Rule 19 - Conduct of Vessels in Restricted Visibility: Yachts must take appropriate measures to navigate safely in restricted visibility conditions, such as fog or heavy rain, including reducing speed and sounding appropriate sound signals.

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