DE2342189A1 - STAG ELEMENT AND STAG FOR SAIL SHIPS - Google Patents

Description

The invention relates to a stay element and a stay for

Sailing ships, especially for a headsail or a jib, the rapid setting, positioning, trimming or turning according to the wind Allow sails.

Depending on the sailing conditions, it is often desirable to change the foresails in the course of sailing. That is true especially for sailing ships that are used for regattas. It goes without saying that when you exchange a One size sail against another size sail The course of a regatta depends on the speed, with which the exchange takes place. Most often only one forestay is used, and this consists of a wire or one

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Pole. If the headsails are to be replaced, it takes place changing by lowering the first foresail, removing the sail from the wire or the pole, attaching the second Sail on the wire or on the rod and then pulling it up of the second foresail. From this description it is already clear that valuable regatta time is lost while the first headsail is lowered and removed and the second headsail is raised and is trimmed.

A well-known attempt to change the foresail too speed up, sees the use of two separate stages or, Forestays ahead, i.e. one stay for each headsail. To d! Ο correct To maintain tension in both forestays, it is necessary to equip the backstage and the associated fittings with equipment that can maintain twice the total tension for both forestays. If this expensive reinforcement of backstage with the associated equipment practically at all is possible, the use of two separate templates does not provide a desirable solution to the problem. A A second forestay, which is simply present without supporting a foresail, is undesirable from an aerodynamic point of view. In addition, the arrangement of a second forestay means. a doubling of that used for the first forestay Armor items, for example the anchoring of the stay. It is obvious that this not only makes the daily situation more complex, but also increases its weight.

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SAP,

U.S. Patents 3,611,969 and 3,658,025 have been proposed on ro I istagen for headsails that a have a single C-shaped link made of rolled stainless steel, in which the bulge or thick hem of the headsail in the open Area of the C-shaped link is inserted. The C-shaped one Link can be rotated to furl the headsail and also provides support for the mast. The cross-section of the C-shaped member is relatively thin, so that headsail with the usual brackets can be used around the C-shaped link. A disadvantage of these stages is that they do not have sufficient strength and torsional stiffness. In addition, they do not, and still require, not allow for, and still require, foresail changes to be made considerably faster than the more common arrangements a certain period of time during which no headsail is set and pulls.

The object of the invention is to provide a stag for sailing ships to create in which the disadvantages mentioned are avoided as much as possible and an exchange of the foresail is possible easily and without loss of time or a simultaneous sailing with two foresails.

According to the invention, a stay for a sail is created which is particularly suitable for the simultaneous receiving and simultaneous holding of the bulges or thick seams at the windward ends of two headsails. The stay has a rod-shaped member which is generally rounded in cross section and in which two grooves are incorporated which are used to receive and hold the beads at the ends on the iuvseiti

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serve by headsails. In a preferred embodiment of the invention, the rod-shaped member is oval in cross-section, and the oaths' hats are on opposite ends of the Main axis of the oval. When using such a stay, a second headsail can be raised and set while the first sail is still in place, preventing loss of speed when changing sails.

In its preferred embodiment, the stay has good ones aerodynamic properties that require a minimum of turbulence and Cause disturbance of the laminar air flow.

The invention is described below with advantageous

Details are explained in more detail with reference to schematic drawings of several exemplary embodiments. Show it:

Fig. 1 is a side view of a sailing ship with a Forestay according to an embodiment of the invention;

FIG. 2 is a side view similar to FIG. 1 in a larger scale Yardstick at which a headsail is raised;

FIg. 3 shows a cross section along the line 3-3 in FIG On a larger scale through a stay with a bow and a stern double groove arrangement;

Fig. 4 is a cross-section similar to Fig. 3 during a certain stage in the course of changing the leaflets;

FIg. 5 shows a cross section through an alternative embodiment of a stay with a double groove arrangement, which is a non-load-bearing, slide-on unit with staggered rear grooves;

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BATH ORIGINAL

FIg. 6 shows a cross section through a further alternative Embodiment of a stay with a double groove arrangement - since it is a non-load-bearing, sliding unit with juxtaposed rear side tia, en grooves;

Flg. 7 shows a cross section through a third alternative embodiment of a stay with a double groove arrangement similar to fig. 3, but which is a non-structural, deferrable unit acts;

FIg. 8 shows a cross section through a fourth alternative embodiment example I of a stay with a double groove arrangement similar to fig. 3, but dom is a two-part, non-load-bearing, deferrable unit acts;

9 shows a cross section through a fifth alternative Execution example of a stay with double groove arrangement, boi which the grooves are provided on opposite sides;

FIG. 10 shows a cross section through a sixth alternative exemplary embodiment of a stay with a double groove arrangement similar to Fig. 6, but which is a two-part, acts as a non-load-bearing, deferrable unit;

Fig. 11 is a front view of a sailing ship with a SpInnaker sack according to the invention in the front groove of a Stay with a double groove arrangement in which the spinnaker is partially is unfolded;

Fig. 12 is a cross-section along the line 12-12 in Fig. 11, in which the sack envelops the spinnaker.

In connection with the drawings 9ai still on it pointed out that they are more preferred for illustrative purposes only

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Exemplary embodiments serve and in no way limit the invention should. Flg. 1 shows a simple example of a typical rigging for a sailing ship with a forestay is usable according to the invention. This is a one-masted ship; but a stay according to the invention could also serve for rear masts in multi-mast vessels. Typical catfish The forestay 1 extends from the bow of the sailing ship to the top of the mast. This is the case with the load-bearing, independent units Forestay preferably at the top and bottom with the help of Anchored rotating devices, which allow the stay to rotate around its Allow longitudinal axis. These rotating devices can be of the most varied Be kind are here as upper turning device 2 and lower rotating device 3 shown. The lower rotating device 3 is provided with a device for rotating the stay by at least 180 ° in one direction or the other provided with a retractor 4 may have, which is wound around a drum 5 is that of a winch attached to the forecastle deck leads. If the line is unwound from the drum, it rotates the stay clockwise. When the tension on the line eases the d3S stay is turned back counterclockwise by wind and sail forces. Flg. 1 shows how the headsail is set. When the foresail is set, the sail is attached at the tip by a shackle 7 and at the lower end by a shackle or a snap hook held in an eyelet 9, which is on deck on Bow end is attached in a known manner.

Fig. 2 shows how the headsail is raised, wherein the bead or the thick sail hem 10 at the Iuvssitigen end of the

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Foresail from a feed ring 11 and a »feed element 12 In the groove 13 is introduced in the stay. The V / u I is on the leading edge or on the windward side of the foresail, the windward edge of the sail, which by a Be! or a wire 14 is looped and is held firmly in place with a binding 15. The binding can be a piece of heavy canvas that is over this arrangement, placed and sewn or glued together, is order To be held in a fixed position in relation to the sail. It should be noted, however, that other devices for connecting of the sail can be used with the forestay. For example Plastic slings or rings or stay riders can be used that fit into the groove or slot in the stay fit and are attached to the sail like the usual stanchions.

The sail is raised by pulling the

The tip or head of the foresail with the help of the fishing hook Ί, which is attached to the halyard 16, which runs over a halyard roller or felling disc 17, as best shown in Fig. 1. Most modern sailing ships have at least two such halyards

A preferred form of the invention is shown in FIG. 3 and 4 shown where the stay or the rod has an elliptical cross-section and two on opposite sides, i.e. bow side and stern side arranged LSngsnuten 13 and 18 has. In Fig. 3 is the headsail is shown in the raised set position, and the bead 10 is in the groove 13 in the normally stern position A arranged. The groove 18 is the bow in the normally bow-side Facing position F. In Fig. 4 the forestay is around

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BAD ORKBiNAL

Rotated 180 ° clockwise so that the bead 10 is now bent, as can be seen from the drawing, and the headsail J extends past the stay. In addition, Flg. 4 the replacement sail J ¹ and its bead 10 ', which are pulled up in the groove 18, which is now the aft-facing .Nut. The forestay can then be rotated 180 ° counterclockwise and the original sail lowered, whereupon the stay is again rotated 180 ° clockwise, so that the sail J ', which is now the only raised and set sail, again assumes the position shown in FIG. In practice it has been found that the original sail J can often be lowered from the forward-facing position, as shown in Flg. 4 shows, and that it is usually not necessary to pull it down from the waving position. The important feature of the invention is that a stay is created which allows a second or new headsail to be raised and lowered, for example a genoa no No. 1 is no longer suitable, but before this sail is lowered.

When both sails are raised, as shown in FIG. 4, the old sail J lies flat against the new sail little disruption of the air flow. When the old sail is down and is pulled down on the windward side of the new sail, i.e. inside the new sail, like Flg. 4 shows it may be because of of the new sail do not go overboard. If it is brought down outside of the new sail, the wind pressure from outside holds it Still against the new sail, preventing it from going overboard

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BADÜmäiHM. ■

to go.

Optionally, the lower rotating means 3 may be provided during the replacement of the sail with 'means for locking n & spot. In addition, this device can have a short handle to rotate at least 180 ° instead of the Aufrol leash and winch as shown in FIGS. 1 and 2. "Most of the time, the rod should be freely attached to rotating devices so that it is in the most favorable of wind forces acting on the sail The upper and lower rotating devices are attached to the tip of the button or to a plate 28 on the bow of the sailing ship with rotating fittings, for example in the form of cross pieces with eyelets and legs, as can be seen from the drawings In the case of the push-on, non-supporting units, as shown in FIGS. The sliding units rotate around the forestay.

At the lower end of the forestay in the area in the vicinity of the feed ring 11, they can delimit the groove or the slot 13 Flanges outwardly deformed and open the slot so that it is wider than the bead 10. This makes it possible insert the starting end of the bead into the groove of the stay. It can be used to facilitate the introduction of the headsail into the groove also one or more brackets, for example in the form of

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Feed element 12 be attached to the stay. Such elements are known and shown, for example, in US Pat. No. 3,658,025. This arrangement is used either fully or partially, depending on Dedarf _f as a means for introducing the Iuvseit "strength end of the jib in the i4ut"

The lower end of the headsail is attached to an eyelet attached to the bow, for example to eyelet 9. There is enough play between the 5se and the entry of the bead into the grooves in the stay to allow the stay to turn 180 . If a jib device or an upright device with a gear ratio is used, however, the eyelet for the lower end of the headsail must be attached to the furling drum 5.

The lengths of the stay can range from about 6 m to 24 m and more (20 to 80 feet). The sizes and dimensions must be increased gradually with increasing length, which can be easily determined by the person skilled in the art. The cross-sectional area varies depending on strength considerations and the material used. Stays according to the invention which are load-bearing, for example the stays shown in Figures 3 and 4 and 9, are preferably made of an extruded aluminum alloy. The preferred aluminum alloy is the alloy 6351-Td (0.7 to \ ~ b% Si; 0.6 # Pe; O, l # Cu; 0.4 to 0.8 Mn; 0.4 to 0.8 # Mg; 0.2 ^ Ti; up to 0.15 $ other elements, remainder aluminum; tempered state Τ6). A stay made from this alloy should be approximately 19.05 mm (3/4 ") along the minor axis and approximately 28.58 mm (1 1/8") wide at 40 feet (12.19 m) ) along the main axis. These details relate to those in FIG. 3

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and Fig. 4, the cross-sectional shape shown is elliptical. the load-bearing stays replace the usual stays, while the non-load-bearing, as shown in Fig. 5 to 8, pushed or threaded onto the usual forestay and not the must have the same strength and other characteristics.

The aluminum alloy 6351-T6 has a breaking strength

of 29.53 kp / mm (42,000 psi) and a yield strength of ' 26.01 kp / mm (37,000 psU »A forestay made from this material weighs a little less than a comparable standard wire forestay and has a cross-sectional area that is more than three times as large like these . The gates of units carrying the ion yield strength

of the invention should preferably be at least 5 * 57 cm.kp/mm or 2j5 m.kp (2000 inch-pounds).

Instead of extruded aluminum, * other comparable materials are used, for example titanium and magnesium will. Load-bearing stays with double grooves should have a minimum breaking strength and torsion strength that previously used forestays is comparable. In addition to the physical properties, however, each Materia! also withstand marine corrosion and in other ways for Uses to be suitable on the water. Another factor, however, is the cost of the material and the manufacturing process, and that's another reason why aluminum is preferred will.

The diameters of the thick sail hems or beads are between approximately 4.76 mm and 7.94 mm (3/16 to 5/16 "). The shooters

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BATH ORIGINAL

or grooves in the stays are preferably round and have a slightly larger in diameter than the bulges they are supposed to accommodate. The grooves, for example grooves 13 and 18 are opposite offset inward of the rod surface by a distance 20, the corresponds approximately to the width of the slot 19 or somewhat less than the radius R of the groove. This arrangement makes them rounded Flanges 21 are formed that limit the entrance to the courage. The slot 19 leaves enough space for the sail, but is for the bead too tight, so that the flanges 21 slide the bead out to keep him out of his courage and hold him tight. The mutes and flanges are in such a relationship to one another that the courage describes almost a full circle, while the slot 19 takes up about 40 * b 1 s 50 of an arc or an opening.

Instead of having two mutes at the back or at the rear, like in the arrangement according to FIGS. 3 and 4, the grooves can also be offset like the stage 22 shown in Fig. 5. Here is the first groove 23 in the forward direction and slightly offset to the side .zur second groove 24 arranged. The cross-sectional shape is always or roughly speaking elliptical or leaf-shaped, with one groove on one side of the main axis and the other on the other side the main axis lies. The front groove is the main axis a bit closer. The groove 24 is of rounded flanges 26 on heckseltigen end of the stay limited. The groove 23 is of a. Flange 27 on one side of the stay, the base of one of the flanges 26 and the central body portion of the stay limited. An opening 25 in the middle is used to receive a conventional forestays made of wire or in the form of a rod.

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Sections or pieces of a unit can be placed on this Viefse put together, connected to each other and placed on a usual stool of wire, to produce an effect similar to that as shown in FIGS. 3 and 4 to be achieved.

This has another alternative cross-sectional shape stay 30 shown in FIG. 6. and the shape of the unit is rounder and thicker, corresponding about half of an oval, so that this shape from the aerodynamic point of view or from the point of view of the V / i ndströrnung is less attractive. A flange 36 in the middle at the rear end of the stagan has two rounded, one courage delimiting sections that view together with page fI 34 the grooves 31 and 32 limit.

The stages 22 and 30 can only be used on rotating devices and do not need any facility to rotate the stay. When they're so attached, they turn up natural way and offer the best angle to the wind. The pull of the windward side of the headsail and the tension of the sailcloth align the stays together with the forces of the V / Indes when attached in this way.

FIg. 7 shows a stay 40 similar to that in FIGS. 3 and 4 shown, except that this stay also has a hole 43 in the middle to accommodate a stay made of wire for a headsail. As with the In Flg. Stag shown 3 and 4 are the grooves 41 and

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42, which take up and hold the bead _; limited by flanges 44.

If one of the stays with a hole in it,

for example a stay according to FIGS. 5 and 7 is used

/ the front stag does not have to carry the tension of the mast, because / made of wire or the rod link does that. Thus, these stays can be made in sections of about four feet or more that are fastened together by pins or screws or otherwise so that they appear as a single piece. In addition, they do not need to have the same strength as the other units. You can go out. Aluminum or plastic, for example made of glass fiber reinforced polyester resin or high pressure polypropylene.

FIG. 8 shows another stay 45 with a bow-shaped and rear groove similar to the stay shown in FIG. 7, except that this stay is composed of two pieces that fit into one another. The front link 46 and rear link 47 fit into one another around the forestay, with an insert member 49 sliding into a grove that is delimited by flanges. The links 46 and 47 can be made of aluminum or plastic, such as polypropylene, and can be hinged to one another along one side, for example on the side 51. They can be put together by spreading the flanges 48, if the material is resiliently flexible, or by inserting the male member 49 in the longitudinal direction into the groove delimited by the flanges 48. The latter arrangement allows the links to be snapped around the stay

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... 8AOORlQfNAL

to leave without the existing wire or rod that the Forestay forms, only to be removed nut. The grooves 37 and 38 provided here are compared with the grooves 18 and 13 according to FIG. 3 i chable.

Fig. 9 shows another stay, in this case with adjacent grooves. This unit has a proportionate straight rear part 55 and a rounded nose or a rounded front part 56 with curved side areas, such as emerges from the drawing. The two grooves 53 and 54 receiving the bead are side by side in the transverse direction in the rear part 55 arranged. The cross-sectional shape corresponds to a triangle with rounded rare.

Fig. 10 shows yet another stay 60, which is a two-part unit consisting of a front, arched piece 61 with lateral flanges or legs 69 that grip over the forestay 63, and a rear part 62- " The flanges 69 have ribs or beads 70 at the end, which surround and fit together with ribs or beads 71 near the front of the rear part 62. The rear part has two adjacent grooves 67 and 68 for receiving beads that are limited by a flange 65 in the center and Seltenflanschen 66th with the flanges 69 acts in the arrangement shown here a sort of comb 64 with the beads 71 formed thereon together. These units are preferably made of aluminum stranggeprefitera.

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As can be seen from the drawings, the stays according to the invention are generally oval or elliptical in cross-section. The main axis runs from the bow side to the stern side and the minor axis runs from one side to the other side of the ship, ie from port to starboard. In the embodiment shown in FIGS. 3 and 4, the length or the main axis is approximately twice as large as the minor axis. The diameters of the grooves preferably correspond to less than half the width of the minor axis. The grooves are preferably circular, but can also have other rounded shapes to accommodate the bulge on the windward side of the foresail. It is important that they have a relatively narrow neck and flanges that grip the bead on the headsail and hold it in the groove.

The cross-sections of the stays are preferably rounded and have rounded outer surfaces that provide sufficient transverse

Sehn i ttsf I oak offer to the stay a corresponding strength and to give torsional rigidity and the grooves or slots depending on how they are arranged.

The rounded grooves can be seen as a longitudinal cylinder imagine that are formed in the forestay or in the rod and extend essentially over their length. the Axes of these cylinders are parallel to each other and to the axis of the rod, and the distance between the longitudinal axes of the Cylinder is preferably at least one and a half times Radius of the larger cylinder.

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■ · ■ * t ■ -, <· "■ · * ■ v ^;

If the grooves are both arranged at the rear and offset, as shown in Fig. 5 shows, the stay is of course wider, and the width is more than 50.1 of the length. If both grooves are arranged next to one another and in a humpy manner, as shown in FIG. 6, the transverse shape is rounded and the rear part is cut off at the two grooves lying next to one another. This embodiment of the invention results in the widest of all stays. *

It should also be noted that the stages with double-groove arrangement as in Flg. 5 and 6 shown executed without opening the holes are provided, and that also in the stages according to Flg. 9 holes can be provided. With all arrangements according to Flg. 3 to 10 corresponds to the top of the bow side and the bottom of the Rear side.

An advantage of the stay shown in FIGS. 3, 4, 7 and 8 is that such a stay can be used with a spinnaker sack according to the invention, as shown in FIG. This is a view from the bow of a sailing ship with a partially open spinnaker S, which is held together at the upper part by a spinnaker sack T. The stay 70 used here corresponds to the stay shown in FIGS. 3 and 4 with a groove on the front and rear. The bead 71 on the genoa foresail is arranged in the stern-sided courage. The bead of the sack 72 for the spinnaker Sege1 is added to the bow-side courage.

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The sack for the spinnaker sail has a total rectangular piece of fabric that is long and narrow, and to which a bead 72 is attached, which extends longitudinally in the longitudinal direction the middle extends. The sack is wide enough to wrap a spinnaker and the sides are connected to a connector For example, a zipper 73 is provided so that the Sp 1 nnaker sail surrounded by the sack can be pulled up on the stay, wherein the bead slides in the groove on the bow side. The connecting device can easily be released by opening the zipper is opened from below and the opening spinhaker sail can free itself. For the expert lies on hand that other connecting devices to adhere to of the spinnaker sail can be used in a sack, for example. wise a slippery rope in a series of loops or a tear cord that breaks easily. The sack can come from one Fabric made from synthetic fibers and has for example with a normal spinnaker sail for a 11.58 m (38 foot)

(25 feet) sailing ship a length of 7,62 m /, a width of 15,24 cm (6 ")

(2 ») and only a diameter of 5.08 cm / if the sack is the spinnaker

contains.

Another advantage of the stay with two grooves is * that when sailing in a stern wind there is one in each groove Headsail raised and on opposite sides of the sailing ship with the help of a forked tree or the like Desire can be kept. The modified embodiment shown in FIG. 9 is particularly suitable for this purpose.

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BATH

Another advantage of the unit according to the invention with double groove arrangement on the bow side and on the stern side, as shown, for example, in Figs. 3, 4, 7 and 8, that the rods can also be used to roll up or partially roll up the Headsail can be used as desired. A jib equipment suitable for this purpose, if necessary with transmission, Is shown in U.S. Patent 3,611,969. Since the Stages have good torsional stiffness, this can be the case with Breezes of any strength occur. The Ro I I f ockej rectification can be easily arranged and removed if necessary.

Another characteristic of Crfin'dung is the possibility of Pull up two headsails at the same time and sail with them. On a yacht, for example, a higher Headsail or a jib and a lower, lighter headsail, e.g. a No. 1 jib so in order to deal with a light breeze

or even before the wind
on the wind / to sail. The additional area of the entire rigging then seems to make the ship faster than is the case with the more common double one-headed rigging under certain conditions.

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Claims (4)

Expectations 1. stay element for a sailing ship in the form of a rod which is rounded in cross section, characterized in that two grooves (13, 18; 23, 24; 31, 32 ; 41, 42; 37, 38; 53, 54; 67.68; 71.72) are arranged that receive and hold the bulges ara windward end of foresails. 2. stay element according to claim 1, characterized in that it is made of a corrosion-resistant aluminum alloy in an extrusion mold. 3. Stay element according to claim 1 or 2, characterized in that the rod is oval in cross section and that the two grooves (13, 18; 41, 42; 37, 38; 71, 72) at opposite ends the main axis of the oval are arranged. 4. stay element according to claim 1 or 2, characterized in that the rod (30; 60) has the shape of a half oval in cross section, and that the two grooves (31,32; 67,68) side by side in the rear part are arranged. 5. stay element according to claim 1 or 2, characterized in that the rod (22) is oval in cross section, and that the first groove (23) is arranged on the rear side and laterally opposite the other courage (24). 409810/0 * 46 6. stay element according to claim 1 or 2, characterized in that the rod (52) has a rounded triangular shape in cross section, and that the two grooves (53, 54) are arranged side by side in the transverse direction. 7. stay element according to one.der claims, characterized marked i chnet that it has the shape of a forestay Has attachment between the bow of the sailing ship and the top of the mast. 8. stay element according to claim 7, characterized in that the rod is attached between two threatening devices, of which the lower rotating device is provided with a device for rotating dos stages and the rod by at least 180 in at least one direction. 9. Stagelemeiit according to claim 7 or 8, characterized in that the rod is elliotic in cross section, that their main axis extends from front to back., and that two opposing grooves on the opposite one Ends of the main axis of the EHiDse are formed in the rod, that the grooves have a round cross-section and are arranged in the rod at a distance that is approximately smaller than their radii and that they serve to receive and hold the bulge at the windward end of headsails, that the stay has sufficient moment of inertia, sufficient strength and rigidity to withstand torsional moments V / resistance, and that the unit has a minimum torsional moment yield strength of 2j5 ra .kp (2000 inch-pounds). 409810/0446 BATH ORIGINAL 10. Stagelefnent according to one of claims 1 to 6, characterized marked that it on one between the bow of the sailing ship and the forestay attached to the upper part of the mast can be attached, \ 1. stay arrangement of stay elements according to claim 10, characterized in that it is center! for securing and aligning a number of stay members to one another to provide a continuous unit substantially over the entire length of the stay. ! 2. Stay arrangement according to claim 11, characterized the gekennzei chnet that / stay elements two interlocking Have members (46, 47; 61, 62) that can be assembled and fit over the stay (63). 13.Stay arrangement according to claim 11, characterized characterized in that the stay elements in their middle area are each provided with a hole (50) which is used to slide the stay element onto the stay. 14. stay arrangement "according to one of claims 11 to 13, characterized in that in the mowing of the bow there is provided means for rotating the plurality of stay elements. 15. Torsionally rigid stay, characterized in that BATH ORIGINAL it has a device for the simultaneous receiving and for the simultaneous holding of the bulges at the windward ends of two foresails and that there is an elongated, / / ~~~ ? Cfumlni umgl I ed with two oppositely arranged longitudinal guards, through which the bulges on the windward sides of the sails extend, with two overall curved outer surfaces that connect the slots, the first and the second inner surface, each. the inner surfaces of each of the curved outer surfaces in two slot surfaces bounding Meet t _p that the first inner surface total defines a part of a cylinder and a first KrümmungsIängsachse that the second inner surface in total defining a Tefi a cylinder and a second Krömmungslängsachse that the overall curved outer surfaces have a maximum perpendicular distance which is at least one and a half times the diameter of the larger of the cylinders, and that the two axes of curvature are substantially parallel to one another and are separated from one another by a distance which is at least one and a half times the diameter of the larger of the cylinders, such that While the first sail is in use, the stay can be rotated and the second sail can be raised and trimmed while the first sail is still in place, thereby avoiding loss of speed while the sails are being exchanged. 16. Stay with a stay element according to claim 9, characterized in that the stay is attached between the bow of a sailing ship and the upper region of the mast, and that in the bow-side courage (72) a spinnaker sack (T) 409810/0446 BAD ORiQINAL is attached, which is a substantially rectangular piece of fabric which corresponds approximately to the length of the spinnaker and so is wide that it can cover the spinnaker, with a bead runs along the center of the piece and connecting means (73) is seen along the two longitudinal edges of the piece, which is in the engaged position and the spinnaker enveloped, with the bead of the spinner sack in the front Groove is arranged. 17. Spinnaker saok, in particular for a stay according to one of the preceding claims, characterized in that it has a substantially rectangular piece of fabric whose length corresponds approximately to the length of a spinnaker and which is wide enough to encase the spinnaker that a bead extends along the center and is attached to the fabric and that a zipper connector is provided for joining the sides of the fabric to encase the spinnaker, and that the connector is readily releasable. 18. Forestay arrangement for a sailing ship, g e .k e η η ζ e i c h η β t by a first rotating device at the bow of the Sailing ship, a second turning device, the one at the top of the mast is attached to a rod-shaped link between the first and second rotating device is attached and in the two rounded grooves are formed facing the surface of the rod are offset inwards by a little bit smaller than your radius, and those with entrance slots are provided, which are limited by rounded flanges that hold the beads of headsails, the 4 09810/0446 The diameter of the grooves is slightly larger than the bulges of the headsail are, and that means for introducing the beads on luvseftSgen end of the headsail is provided in the Nuton. 40981Ö / 0U6 BAD ORtOtNAl