Mast

The mast is a vertical Espar (put aside the bowsprit) being used to support the veils on a sailing boat. In a general way, it is a vertical pylon.

On the buildings of the traditional marine, the masts generally bear the name of the principal veil of the known as mast.

  • Bowsprit (with the Prow)
  • Mast of Foresail (with before)
  • mainmast (largest)
  • Mast of Mizzen (mast more on the back and smaller on a boat with several masts)

On the old ships out of wooden, a mast is an assembly of several embedded parts one in the other, the whole being maintained by many roustures or metal circles hot posed. The mast penetrates in the bridge by a hole called will étambrai and will set at the bottom of the hull in a named part root . The root is carried by the fuselage which is a long piece of wood fixed parallel to the skittle in enfourchure of all the Couple S.

In the small boats, the mast is made of only one piece of wood, one says whereas it is with pible .

On the more recent sailing ships, in particular starting from half of the 19th century, the masts were made out of sheet steel rolled and riveted. This allowed a greater resistance, a facility of manufacture and a greater reliability for a weight reduced in the tops.

On certain units, they even could be used as chimney of ventilation or conduit of exhaust for the engines or the kitchens…

The current sailing ships of pleasure have, in their enormous majority, of the masts out of aluminum alloy, even in composite carbon for units of race and of which the very elaborate profiles sometimes (in particular swivelling masts wing) can even be a propelling part associated with the veil. Part of the Gréement current passes inside, limiting the Fardage and the airborne noises. However, the masts out of wooden are always used on sailing ships of cruising, especially in lamellate-stuck (the use of pieces of wood of small size easier allows to find) which allows a more homogeneous structure, very robust, complex forms and an equivalent impact on the position of the center of gravity, to see more interesting than an aluminum mast thanks to a hammering (reduction of progressive section) in the tops. Certain amateurs, as it was the case of Marcel Bardiaux on his sailing ship " INOX" , also manufacture stainless sheet steel masts rolled, hammered and riveted, solution very robust and durable, not heavier than a mast out of aluminum standart of constant section and, of comparable resistance.

On the important ships, it is made of several parts (3 even 4):

The word mast is also employed in aeronautics to indicate the part which connects an engine and the wing or the body of a plane. One speaks in this case about mast about engine.

Characteristics

  • the mast of house: mâtereau with the poop, tilted backwards, being used to hoist the house of nationality. (Foot-note: on the warships one finds to the extreme before a second mast of house, it acts of the mast of house of bowsprit)
  • the Cargo boom.

See too

Simple: Mast

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