• Hull
• Fill with wind to move the yacht
• Carbon fibre, fibreglass
• Duralumin alloy
• Waterproof and digital for accuracy
• Steel

• Petroleum and coal
• A high density (heavy) material
• Steers the yacht
• Stainless steel, titanium
• Aluminium
• Strong with little stretch.

YACHT PART

PURPOSE

MUST BE

MADE OF

MINE PRODUCTS

Centreboard

Stops the 49er from being washed sideways.

If it capsizes, the crew stand on the centreboard to get it upright again.

Strong and very rigid.

Polyurethane foam strengthened with

_______(woven carbon threads set with a resin or glue which then hardens) and ________ (glass filaments woven like a cloth and set with a resin).

Petroleum

Quartz

Rudder

______

Strong and rigid to withstand high stresses.

As above

Coal, petroleum

Keel

Keeps the yacht upright.

______

Lead, cast iron or steel

Lead

Iron

_____

Holds the mast, sails and crew. Reduces the friction of moving through the water. Keeps the water out.

Able to withstand the stresses of bending and twisting while sailing.

Fibreglass strengthened with carbon fibre and saturated with an epoxy resin opaque polyester gel coat which adds colour.

Quartz Coal, petroleum Lead, titanium dioxide and zinc

Mast,Boom and Spinnaker pole

Holds the sails and allows them to change shape with the wind.

Light, very strong, flexible and resists rust.

_______

Aluminium, copper, silicon and magnesium

Rigging wire

and

Fittings

Holds up the mast, and supports the crew when they are hanging out to balance the yacht. Allows the ropes to be fed through and held fast.

Light, strong and rust-resistant.

______________

and ___________

Iron alloyed with chromium,

nickel and manganese

Titanium

Sails -

Mainsail and

Jib

Spinnaker

______________

______________

Able to hold their special shape and strength equally in all directions.

Very light and strong.

Artificial plastic fibres such as Mylar, Spectra,

Dacron, Kevlar and Terylene

Nylon

Petroleum,

coal

Petroleum

Ropes

Pull up and adjust sails.

_________

_________

Polyester,

Spectra and Kevlar

Petroleum,

coal

Clothing

Lifejacket

Rubber boots

Keeps the crew warm and dry.

Keeps the crew afloat and visible if overboard.

Keeps feet warm and dry. Provides traction.

Wind proof and waterproof.

Waterproof and non-slip.

Polyester fibres - Terylene, Gortex.

Polyurethane or polystyrene foam covered with brightly coloured polyester fabric.

Neoprene.

___________

___________

____________

Watch

Keeps time.

______________

Quartz

Stainless steel

Quartz

Iron alloyed with chromium,

nickel and manganese

Trolley

For launching yacht into water.

Light and rust-resistant.

Duralumin alloy

____________ copper, silicon

and magnesium