A veil is a piece of fabric, which can vary in size from a few square meters to several hundred square meters, which, thanks to wind, is used to move a vessel. Sails are used on sailboats, windsurfers, but also on land vehicles (Key West sail and snorkel). A veil is mainly characterized by its shape, weight, and (s) material (s) which it is composed.
In ninth century the introduction of lateen begins the decline sailing in Mediterranean where the wind regime is too irregular to use it. Atlantic it persists even beyond the Middle Ages, Viking long ships to Hanseatic cogs, through the French and British ships. The following centuries confirm its retention as evidenced ships products both for trade and for the fight.
During the development sailing ships (seventeenth century-nineteenth century) the increase in ship size has greatly increased the height of masts, and it has increased the number of square sails on each mast (we had 7 floors up) so that they remain cargables (foldable) with an acceptable number sailors. On the long downwind, captains clippers were sometimes added to outside extensions yards to wear veils called studding that allowed to win a little bit of speed. This delicate and risky operation was feared because of topmen the fall was the promise of certain death by drowning, the vessel being unable to turn around to come and look.
The force exerted by wind on sails is roughly perpendicular to chord of sails plan. The component of force which is parallel to axis of vessel is the propulsive force. The other component, perpendicular to axis of vessel tends to cause it to drift, but can also cause property (band) (the ship leans on its side), and can dangerously compromise its balance or capsize.
It was during the first half of twentieth century disappears little by little the veil, especially with the end of tall ships at a premium, one of most successful for the size and speed generations, whose Belem is a survivor, unlike the Duchesse Anne reflecting a generation of great vessels school that bygone period.
One can consider a sails attached flow charge of a system as a deflecting air mass. Just like a shot putter gets a centrifugal force by spinning his hammer, sailing receives is proportional to mass of air deflected and the deflection angle power. The amount of air is deflected from the product:
The maximum angle of deflection that can obtain is equal to angle of incidence of wind relative to axis of vessel. It is against-productive effect of sails border beyond the axis of vessel. The actual angle of deflection depends on the ability of air to follow the profile of sails. If the radius of curve is too short to follow the depression on the upper surface becomes too strong, and the air picks (tends to take the wind direction).
It is found in the early twentieth century in, in northern Brittany, in particular the number of cutters fishing inBay of Morlaix; ex. Joan of Arc, launched in 1909. The advantage of this simple to implement rig is a certain lightness, excellent performance of near-like while maintaining a large area of canvas suitable for speed (first come port obtained the highest price for their catch, fresh issue as well).
In ninth century the introduction of lateen begins the decline sailing in Mediterranean where the wind regime is too irregular to use it. Atlantic it persists even beyond the Middle Ages, Viking long ships to Hanseatic cogs, through the French and British ships. The following centuries confirm its retention as evidenced ships products both for trade and for the fight.
During the development sailing ships (seventeenth century-nineteenth century) the increase in ship size has greatly increased the height of masts, and it has increased the number of square sails on each mast (we had 7 floors up) so that they remain cargables (foldable) with an acceptable number sailors. On the long downwind, captains clippers were sometimes added to outside extensions yards to wear veils called studding that allowed to win a little bit of speed. This delicate and risky operation was feared because of topmen the fall was the promise of certain death by drowning, the vessel being unable to turn around to come and look.
The force exerted by wind on sails is roughly perpendicular to chord of sails plan. The component of force which is parallel to axis of vessel is the propulsive force. The other component, perpendicular to axis of vessel tends to cause it to drift, but can also cause property (band) (the ship leans on its side), and can dangerously compromise its balance or capsize.
It was during the first half of twentieth century disappears little by little the veil, especially with the end of tall ships at a premium, one of most successful for the size and speed generations, whose Belem is a survivor, unlike the Duchesse Anne reflecting a generation of great vessels school that bygone period.
One can consider a sails attached flow charge of a system as a deflecting air mass. Just like a shot putter gets a centrifugal force by spinning his hammer, sailing receives is proportional to mass of air deflected and the deflection angle power. The amount of air is deflected from the product:
The maximum angle of deflection that can obtain is equal to angle of incidence of wind relative to axis of vessel. It is against-productive effect of sails border beyond the axis of vessel. The actual angle of deflection depends on the ability of air to follow the profile of sails. If the radius of curve is too short to follow the depression on the upper surface becomes too strong, and the air picks (tends to take the wind direction).
It is found in the early twentieth century in, in northern Brittany, in particular the number of cutters fishing inBay of Morlaix; ex. Joan of Arc, launched in 1909. The advantage of this simple to implement rig is a certain lightness, excellent performance of near-like while maintaining a large area of canvas suitable for speed (first come port obtained the highest price for their catch, fresh issue as well).
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