sailmaker’s guide · 2018. 12. 10. · rcb 30 511-595-11 511-695-11 511-590-01 511-690-01...

Sailmaker’s guideDimensions and hints to help sailmakers fit sails to Seldén rigs and equipment

595-542-E2007-02-14

CK D

F

H

2

1 IntroductionThis guide has been printed to provide sailmakers with the information necessary for them to ensure that rig and sail will be compatible. The contents cover the major part of Seldén’s production from 1977 onwards. The information generally applies to Kemp products of the same period.Masts between 1977 and 2002 are normally type E (conventional mast) or type R (In mast furling mast). Masts from ~2003 are type C (conventional masts) or type F (In mast furling masts). Each section of the guide is marked with mast type to help the reader in locating the correct information.This Guide is primarily aimed at Sailmakers, but the content should assist our end customers in making the best use of our impoved product.However, we would point out that this guide is only intended as an aid, and that variations can occur. It is the sailmaker’s responsibility to ensure that the sail suits the rig. This information will be up-dated as new products are introduced. Seldén reserves the right to change the specifications given without prior notice.

Contents Page

1 Introduction 22 Conventional masts 32.1 Mast sections 32.2 Mast deflection curves 42.3 Mainsails 42.3.1 Fitting slides 42.3.2 Sail slides E-masts 52.3.3 Sail slides C-masts 52.4 Seldén – RCB full batten System 22 6 and System 302.4.1 Dimensions 62.4.2 Parts 72.4.3 Try Sail slider 72.5 MDS Full Batten system 82.5.1 Parts 92.6 Sail Entry Gate 102.6.1 The Seldén Sail Entry Gate 102.6.2 The Seldén MDS Sail Entry Gate 112.7 Boom sections on conventional masts 122.7.1 Slab reefing and roller reefing 12 on older booms (through 1991) 2.7.2 Traditional slab-reefing booms 13 from 1991 inclusive

2.7.3 Single-reef booms as from 14 and including 1991 2.7.4 Traditional slab-reefing booms 15 on C-mast from 2003 2.7.5 Single-reef booms on C-mast from 2003 162.7.6 Running reef-hooks 172.7.7 Clews 182.8 Head measurements 193 In-mast furling mast 203.1 R section: manual, hydraulic and electro 203.2 F section: manual, hydraulic and electro 223.3 Furlex Main - Retro-fit system 243.4 Design aspects of in-mast furling mast 26 main sails4 Furling foresails 274.1 Furlex furling and reefing system 27

Page

ERCF

The following information must be given to the sail-maker by the customer:

Mainsails

Conventional mainsail with ”short” battens.

•-Mast section dimensions. • Boom section dimensions. • Sail Plan (”P” & ”E”).

Conventional mainsail with full length battens.

•-Mast section dimensions. •-Boom section dimensions. •-Sail Plan (”P” & ”E”).

In-mast furling mast mainsails•-Mast section dimensions. •-Boom section dimensions.

•-Reefing system type (Seldén in-mast furling, Furlex-Main, etc.)

Foresails Roller furling genoas.•-Furlex type. •-Total forestay length or available sail space •-Sail Plan •-Level of lower pin on furlex toggle

in relation to deck, see Fig: 4.1.a.

MDS-car

10 ± 0.75 5.5 ± 0.75 511-702

511-605

or

511-607

10 ± 0.75 5.5 ± 0.75

511-701

or

511-702

511-605

or

511-607

Mastdim

511-601

511-602

or

511-603

511-603

511-601

511-602or

511-603

511-601

511-602

or

511-603

611-601

511-601

511-601

or

511-603

Mast

Conventional masts from 2003

3

122/85

130/93

138/95

155/104

170/115

177/124

189/132

206/139

224/150

237/162

274/185

321/171

365/194

126/85

147/95

162/104

178/115

216/139

239/162

109/88

121/92

129/100

137/113

146/112

160/132

73/53

90/65

100/73

111/81

123/90

137/100

152/111

169/123

188/137

Major Diameter (170 mm)

Minor Diameter(115 mm) Fig: 2.a

Mast Luffgroove

mm

Luffgroove for bolt rope*

Sailslider

Luff Groove

mm

Slider

E-Section(10° aft face)

5.5 ± 0.75

5.5 + 1.004.0 + 1.005.0 – 0.00

5.5 ± 0.75

5.5 + 0.754.0 + 1.005.0 – 0.00

5.5 + 0.754.5 + 1.005.0 – 0.00

5.5 ± 0.75

E-Section(Round aft face)

D-Section

P-Section

5.5 + 1.004.0 + 1.005.0 – 0.00

5.5 ± 0.75

6.25 ± 0.75

2 Conventional masts

2.1 Mast sectionsMast section measurements are given as follows:Major Diameter/Minor Diameter (i.e. 170/115).Be observant of mast shape. This will help identification and the use of correct measurements.The major diameter of the mast can usually be found in the number engraved at the mast heel. For example K23-170-1233.

5.5 + 1.004.0 + 1.005.0 – 0.00

Conventional masts before 2003

*Special groove insert and sail entry gate are required to accept bolt rope. If sail slider are to be used in combination with bolt rope insert, use HA 258/A019 or Rutgerson 102.

C-Section 156/87

175/93

193/102

211/110

227/119

245/127

264/136

285/147

304/157

C156

C175

C193

C211

C227

C245

C264

C285

C304

2.3 Mainsails

2.3.1 Fitting slides

To avoid jamming in the luff groove, slides must have freedom of movement on the sail.

4

Several systems are available for full length battens. Seldén’s RCB system is shown on pages 6–7 and Seldén's MDS system is shown on pages 8–9. Refer to the relevant manufacturers concerning other systems.

Correct: Free-moving fixture Wrong: Stiff fixture

E & C

2.2 Mast deflection curves

Our spars and fittings are designed to cope with a maximum longitudinal deflection of 2% of the fore-triangle height (H). On fractional rigs the maximum deflection can be taken as being 2% of the mainsail luff (P). These values are guiding principles only.The conditions are:1) The mast forms an even curve (convex front) from deck level to mast-head.2) The deflection must be kept within the stated values, even in rough seas, by suitable longitudinal staying.The deflection curve is formed by:

It may be possible to increase the above values on some masts. However, in such cases the customer must request a special calculation for this from Seldén Mast, and have our written agreement for the increase in deflection depth.

Inner forestay checkstay

Position of mast heel(keel-stepped masts)

Backstay

Forestay

K max = 2% x H

Fore

-tria

ngle

hei

ght (

H)

Mai

n sa

il lu

ff (P

)

K max = 2% x H

Deck

K max = 2% x P

Fig: 2.2.a

Fig: 2.3.1.a Fig: 2.3.1.b

Fig: 2.2.b

Fig: 2.2.c

E & C

511-603

Art. no.

Breakingload

19

416

7

40

Aquabatten part no.

Art. no. Slider (mm)

20

67

45

206

7

68

Slider (mm)

15

408.5

20

5.1

15

8.52030

5.1

15

414

7

30

25

5.5

15

113

511-601

5.54000 N(400 Kp)

5

5

Breakingload

Fits luff groove (mm)

2.3.2 Sail slides E-mastsIt is imperative that the correct sliders are used on Seldén masts in order to fit the Seldén sail entry gate.

E

511-602

4700 N (70Kp)

2250 N (225Kp))

A 013

A 014

A 015

Fits luff groove (mm)

511-605

511-607

511-701-02

511-702-02

10

10

10 1)

10 1)

2250 N(225 Kp)

4000 N(400 Kp)

3000N(300 Kp)

2000N(200 Kp)

2.3.3 Sail slides C-masts

It is imperative that Seldén slides are used on Seldén masts in order to fit the Seldén sail entry gate.C

Fig: 2.3.2.a

Fig: 2.3.2.b

Fig: 2.3.2.c

Fig: 2.3.3.a

Fig: 2.3.3.b

Fig: 2.3.3.c

Fig: 2.3.3.d

1) For Mast sections, see page 9.

A

C

D

E

F

G

H

Rutgerson

Aquabatten

6

Fig: 2.4.1.a

RCB 22Min 59

964066666626

1500: B = 561505: B = 591510: B = 61

SDA-A 41219A 453: B = 73

2.4 Seldén – RCB full batten System 22 and System 30

2.4.1 Dimensions

Note: The leech will be closer to the backstay than when standard Seldén slides are fitted!

C

D

C

A

Same as for full battens

E

F

G

B

H

Rutgerson

The sail foot is usually reduced when old sails are retro-fitted with the Seldén-RCB Full Batten system. Cut-back should also be adjusted.

Aquabatten

(M10 Thread)

B

Aft face of mast section

Nor

mal

spac

ing

~100

0~1

000

RCB 30Min 68

108

60

80

80

104

36

–

1505: B = 59

1510: B = 61

–

Head-Board to be drilled ø 12 mm by sailmaker

E

Head-board car

7

RCB 22

RCB 30

2.4.2 Parts

The slide attachment eye is easily detached from the slide and can be sent to the sailmaker separately. It also facilitates fitting the mainsail.

2.4.3 Try Sail slider

(art. no.: 511-713)

• three sliders at the head and tack of the sail c/c 50 mm (2”). Remaining cars to be fitted with c/c ~400 mm (16”).

• For sufficient articulation always connect cars to sail via shackles.

• For less friction use Seldén Silicone lubricant (Part No. 312-506) or similar products on the track.

The car is fitted to the mast.

Fig: 2.4.2.a

Fig: 2.4.3.a

Total assemblyCarConnectors

Batten car

All-Round:Fits Rutgersonbatten fitting and others

Batten car

With M-10 screw:Fits Aquabattenbatten fitting and others

Sail car

RCB 22

RCB 30

RCB 22

RCB 30

RCB 22

RCB 30

511-595-11

511-695-11

511-590-01

511-690-01

511-598-01

511-692-01

511-590-01

511-690-01

511-581-11

511-681-11

511-581-11

511-681-11

511-581-11

511-682-11

511-595-01

511-695-01

511-581-04

511-681-04

511-581-03

511-681-03

511-581-04

511-681-04

E

G

F

E

50 mm (2”)

400 mm (16”)

Art no.

511-701-04

511-701-06

511-702-04

A

140

225

118

8

2.5 MDS Full Batten systemC

Head-Board to be drilled ø 12.5 mm by sailmaker

Sail can be connected with shackles or webbing loops

~100

0~1

000

Nor

mal

spac

ing

68

45

Dept: 45

13

74

A

Fig: 2.5.a

9

C 2.5.1 Parts and RM-limits

1) Breaking load 4000N, 2) Breaking load 6000N, 3) Breaking load 9000N, 4) Measurement see fig: 2.5.1c

Fig: 2.5.1.a

511-701-06

Fig: 2.5.1.b

511-701-03

Fig: 2.5.1.c

511-723

14

6

6.18

90 70

160 120

55 40

90 70

160 120

160 120

90 70

160 120

90 70

Max RM kNmAssemblyMh Frac.

Head board

Batten Car

Head boardcar

Sail Car

Assembly

511-701-08

511-707-01

511-702-02

511-708-01

511-701-03 M10 screw

511-701-02

511-702-03

511-702-08

511-702-041)

511-701-042)

511-701-06 3)

511-707-01

C156

C175

C193

C264

C285

C304

Section

C211

C227

C245

C264

C285

C304

C211

C227

C245

C211

C227

C245

C264

C285

C304

C156C175C193C211C227

C245C264C285C304

Parts

C211

C227

C245

C264

C285

C304

511-701-02

511-708

511-707-01

511-708-01

511-701-02

511-701-01

511-702-01

Parts

511-707

511-7234)

153-117

C156

C175

C193

166-234-01

166-234-01

153-118

511-702-01 511-7234)

511-712-01

511-712-01

511-701-02

511-701-02

511-702-02

511-702-01C156

C175

C193

10

2.6 Sail Entry Gate2.6.1 The Seldén Sail Entry Gate

The Seldén E-section sail entry gate allows reefing without needing to remove the slides from the luff groove. Ensure that the measure ment ”G” is sufficient to allow the reef cringle to be hooked on with the slides in place in the luff groove.”L”= the largest possible slide spacing as recommended by the sailmaker.Note. Remember that the reef cringles also have ”cut-back” to reduce horizontal loading on the nearest slide.(Reef Hook cut-back = "F"; page 12–14, 17)

Section Series E 122/85–274/185 & D 109/88–160/132The sail entry is i fitted with a removable gate to permit the mainsail to be fitted with either a luff rope or with slides. See fig 2.6.1.b.

Section Series E 126/85–239/162 & P 73/53–188/137From 1977 to 1979 inclusive, these sections were fitted with the sail entry gate mentioned above.Earlier sections have a dilated luff groove just above the gooseneck fitting to allow either luff rope or slides to be fed in. An extension tube, see fig. 2.6.1.d (part number 505-514-01) is obtainable as extra equipment for these masts. This allows slides to move down the luff groove to the upper edge of the gooseneck fitting, and permits reefing in the same way as in fig 2.6.1.a.

Sail Entry Gate for Full-Length Batten CarsFor sails with full-length battens and cars that run in the luff groove, a special sail entry gate is availa-ble, see fig 2.6.1.c (505-516-01 can be fitted instead of 505-501-01 and 505-524-01 can be fitted ins-tead of 505-503-01). Sail entry gate no. 505-516-01 fits sections E 138/95–274/185 and D-129/100– 160/132. Sail entry gate no. 505-524-01 fits sections E 122/85, E 130/93, D 109/28 and D 121/92.

L

G

Fig: 2.6.1.a

Fig: 2.6.1.bFig: 2.6.1.dFig: 2.6.1.c

E

Sail entry art. no. 505-501-01 or 505-503-01

Sail slide cassette kit art. no.505-514-01

Sail entry gate art. no. 505-516-01 or 505-524-01

11

2.6.2 The Seldén MDS Sail Entry Gate

The Seldén C-section sail entry gate allows reefing without needing to remove the slides from the luff groove. Ensure that the measure ment ”G” is sufficient to allow the reef cringle to be hooked on with the slides in place in the luff groove.”L” = the largest possible slide spacing as recommended by the sailmaker.Note. Remember that the reef cringles also have ”cut-back” to reduce horizontal loading on the nearest slide.(Reef Hook cut-back = "F"; page 15–17).

Instructions for the MDS sail entry gate.The MDS-sail entry gate is designed for use with MDS cars or conventional sail sliders. When using MDS cars, simply remove the sail entry gate when installing or removing the cars. When using it with conventional sliders, feed the sliders through the spring-loaded mid section of the sail entry gate.

Fig: 2.6.2.a

Fig: 2.6.2.b

Fig: 2.6.2.c Fig: 2.6.2.d

C

Sail entry gate is easily removed to fit or remove Seldén MDS cars.1. Press at the bottom of the middle gate.2. Push the Sail entry gate body downwards.

Sail entry gate is designed for use with Seldén MDS cars or conventional sail slides.

L

G

12

Usually roller reefing booms, but also slab-

reefing booms with external reefing lines occur.

5.5 + 0.754.0 + 0.754.0 – 0.00

5.5 ± 0.75

5.5 ± 0.75

5.5 + 0.754.0 + 0.754.0 – 0.00

5.5 + 0.754.5 + 0.754.0 – 0.00

2.7 Boom sections on conventional masts(Tacks, reefing hooks etc)

2.7.1 Slab reefing and roller reefing on older booms (through 1991)

Alternatives to cringles. See figs. 2.7.6.b and 2.7.6.c, page 17.

Clews, see page 18

100 mm

C

K D

F

H

Fig: 2.7.1.a

1st reef to starboard.2nd reef to port. 3rd reef to starboard.Etc.

Boomsection

Luffgroove

Sail entry gate

”cut-back”

Tack Reef hooks

No. of internalreefing lines

Reef lineattachmentat aft endof boom

GroovedSection

1977–1991

85/5886/59*

111/75128/90150/105162/125

E-Section1982–1991

189/132206/139

P-Section1969–1980

73/5390/65111/81

137/100

Cmmmm

Kmm

Dmm

Hmm

Fmm

600600

830830830830

830830

190190

205225265330

330330

6060

75756060

6060

00

10203025

2525

5050

6565105105

105105

22

2234

44

Several variationsexist. Spars must be individually

measured.

* Still in production.

Adjustable slides on tracks occur, but reefing lines can also be tied around boom.See Fig: 2.7.2.a page 13.

Reefing line tiedfast to slide on the boom. Free choice of number of

slides.

Reefing line tied around boom; see Fig: 2.7.2.a,

page 13.

E

13

2 slab reefs +1 flattening reef

3 slab reefs

3 slab reefs

4 slab reefs

4 slab reefs

2–4 slab reefs


Reefing line tied around boom; see Fig: 2.7.2.a.

120/62

143/76

171/94

200/117

250/140

300/155

Important!1. The reefing line is tied as illustrated, with a bowline and

running noose. No. 1 reef is shown. Note that grommets are required along the foot for each reef.

2. For loose-footed sails, the reef line loop must be held in the correct postition along the boom, to ensure proper reefing. Seldén's eye slider can be used for this.

2.7.2 Traditional slab-reefing booms from 1991 inclusive

Boomsection

Luffgroove

Sail entry gate

”cut-back”

Tack Reef hooks


Cmmmm

Kmm

Dmm

Hmm

F1mm

5.5 ± 0.75

6.25 ± 0.75

6.25 ± 0.75

830

830

830

830

830

830

215

160

190

250

275

100

75

80

80

100

100

77

10

20

20

20

20

37

65

80

80

110

110

Running hook

page 17

Alternatives to cringles. See figs. 2.7.6.b and 2.7.6.c, page 17.

Clews, see page 18

~ 100 mm

C

K

F

D

H

Fig: 2.7.2.b


See page 17 for alternative tack reef hooks.

Fig: 2.7.2.a

E

14

Reef lineattachment

Reef line attached as per

Fig: 2.7.3.a

E

2 single line +2 traditionalslab reefs**

E-1800

E-1800

E-1900

E-2000

E-2500

E-600

E-700

E-850

E-950

E-1100

Cmm

2.7.3 Single-reef booms as from and including 1991

Fig: 2.7.3.b

Boomsection

Luffgroove

Sail entry gate

”cut-back”

Tack Single lines reef

No. of reef lines

120/62

143/76

171/94

200/117

250/140

mmK

mmH

mmS*mm mm mm

5.5 ± 0.75

6.25 ± 0.75

830

830

830

830

830

150

160

190

250

275

75

80

80

100

100

10

20

20

20

20

120

140

150

190

200

2 single line +1 flattening

2 single line +1 traditionalslab reef**

Max height for

reef 1(Starboard)

***

Max height for

reef 2(Port)***

* The ”S” measurement includes the shackle supplied by Seldén Mast.** Running Reef Hooks as shown on page 17 should be used for traditional 3rd and 4th slab reefs in conjunction with

Single-Line Reefs. If permanent reef hooks are used at the tack there is a risk that the sail can snag when a Single-Line Reef is shaken out.

*** ”Max height” information refer to forward reef cringle only.Comprehensive instructions on Single-Line reefs can be obtained from Seldén Mast; reference No 595-664-S, E, and -T, (in Swedish, English or German respectively.).

Dmm




Fig: 2.7.3.a

Forward reef line attached by means of a shackle supplied by Seldén Mast.

Clews, see page 18

~ 100 mm

C

K

E

C

S*

D

H


15

Mastsection

120/62

143/76

171/94

200/117

Boomsection

171/94

200/117

250/140

2 slab reefs +1 flattening reef

3 slab reefs

3 slab reefs

4 slab reefs

3 slab reefs

4 slab reefs

4 slab reefs

80

80

80

80

110

110

110

35

20

20

20

45

20

20

80

80

80

80

100

100

100

150

165

195

270

210

250

275

850

830

830

830

830

830

830

5.5 ± 0.75

6.25 ± 0.75

5.5±0.75

130

110

110

110

180

150

150

C156

C175

C193

C211

C227

C245


Reefing line

tied around boom;

see Fig: 2.7.4.a

2.7.4 Traditional slab-reefing booms on C-mast from 2003

Alternatives to cringles. See figs. 2.7.6.b and 2.7.6.c, page 17

Clews, see page 18

~ 100 mm

C

K

F

D

H

Fig: 2.7.4.b


Luffgroove

Sail entry gate”cut-back”

Tack Reef hooks

No. of internalreefing linesC

(bolt rope)mm

C(MDS slides)

mmmm

K

mm

D

mm

H

mm

F

mm

See page 17 for alternative tack reef hooks.

E



2. For loose-footed sails, the reef line loop must be held in the correct postition along the boom, to ensure proper reefing. Seldén's eye slider can be used for this. Fig: 2.7.4.a

C264

C285

C304

300/155 6.25± 0.75

6.25± 0.75

170 830 75 100 35Running

hookpage 17

2–4 slab reefs

C264

C285

C304

16

Reef line attached as per

Fig: 2.7.5.a

Reef lineattachment

850

830

830

830

830

830

830

130

110

110

110

180

150

150

180

190

200

120

140

150

190

35

20

20

20

45

20

20

80

80

80

80

100

100

100




Mastsection

150

165

195

270

210

250

275

5.5 ± 0.75

6.25 ± 0.75

5.5±0.75

6.25 ± 0.75

C156

C175

C193

C211

C227

C245

E-1800

E-1800

E-1900

E-2000

E-1900

E-2000

E-2500

C

120/62

143/76

171/94

200/117

171/94

200/117

250/140

Boomsection

Luffgroove

Sail entry gate”cut-back”

Tack

C(bolt rope)mm

C(MDS slides)

mmmm

K

mm

D

mm

H

mm

S

mm

2.7.5 Single-reef booms on C-mast from 2003

Forward reef line attached by means of a shackle supplied by Seldén Mast.

Clews, see page 18

~ 100 mm

K

E

C

S*

D

H

Fig: 2.7.5.b


* The ”S” measurement includes the shackle supplied by Seldén Mast.** Running Reef Hooks as shown on page 17 should be used for traditional 3rd and 4th slab reefs in conjunction with

Single-Line Reefs. If permanent reef hooks are used at the tack there is a risk that the sail can snag when a Single-Line Reef is shaken out.

*** ”Max height” information refer to forward reef cringle only.Comprehensive instructions on Single-Line reefs can be obtained from Seldén Mast; reference No 595-664-S, E, and -T, (in Swedish, English or German respectively.).

E-600

E-700

E-850

E-950

E-850

E-950

E-1100

Max height for reef 1(Starboard)

***

Max height for reef 2

(Port)***


Single line reef

2 single line + 2 tradi-tional slab reefs**

2 single line + 1 tradi-tional slab reefs**

2 single line +1 traditionalslab reefs**

2 single line +1 flattening

2 single line +1 traditionalslab reef**)

Fig: 2.7.5.a

C264

C285

C304

17

See page 13 and 15 for other tack data.

120/62

143/76

171/94

200/117

250/140

300/155

Alternatives to cringlesFirst alternative

Is used when the reefing line is attached with a shackle, such as for ”Single-Line Reefing”.

Second alternative

Improves handling when the sail is to be reefed to a permanent tack reef-hook.

Boomsection

Reef hooks

Fmm

120

120

120

130

130

130Use ”Alternative

to cringles second alternative” (Fig: 2.7.6.c)

2.7.6 Running reef-hooks

”Running” reef-hooks may be used as an alternative to fixed.


For boom 300/155

Fig: 2.7.6.a

Fig: 2.7.6.b

F

Fig: 2.7.6.c

E & C

18

MShackleL

Outhaul car/slideBasic No.

Boom Nmin.

E & C

85/5886/59

111/75128/90

111/81137/100

507-602

See fig 2.7.7.b

90/65

2.7.7 Clews

See page 20–26 for in-mast furling mast - manual, hydraulic and electro.Outhaul cars or slides are supplied complete with shackles on all current Seldén booms. However, there are older booms from section series P 73/53–137/100 which were supplied without either. In these cases, the sail's clew is lashed to the boom end-fitting.

– – –

ø 7 mm key shackleL = 40 mm307-004

40 mm 11 mm

40 mm 11 mm

45 mm 13 mm

45 mm 13 mm

45 mm 13 mm

40 mm 8 mm

40 mm 10 mm

45 mm 10 mm

50 mm 14 mm



ø 10 mm shackleL = 44 mm307-024






pin ø 12 x 33165-402

jaw width: 20 mm

pin ø 12 x 37165-409

jaw width: 23 mm

507-701

511-519

507-603

507-519

507-569

511-570

511-617

511-588

150/105162/125

189/132206/139

120/62

143/76

171/94

200/117250/140

200/117250/140

300/115

Fig: 2.7.7.aFig: 2.7.7.b

3562

55040

M

LN

19

A (mm)

C-mast

15°

80/280

85/295

70/280

110

100/220

130

120

”A” = 75–100 mm. (With non-

tapered

frac tional rigs

using section

D-109/88 or

E-122/85 the

measurement

is 25 mm.)

C156

C175

C193

C211

C227

C245

C264

C285

C304

E-mast

Rope halyard

To avoid the halyard splice or Talurit damaging the mast-head sheave, dimension ”B” must not be shorter than that shown.When choosing the ”B” measurement, consideration must be taken to dimension HB and the mainsail roach in relation to the backstay.

Halyard WireDimension

ø 3 mm 200 140

ø 4 mm 230 150

ø 5 mm 260 170

ø 6 mm 300 200

ø 7 mm 350 230

ø 8 mm 400 250

Wire halyard

RopeDimension

”B” mmKnot

ø 6 mm 60 430

ø 8 mm 70 430

ø 10 mm 80 430

ø 12 mm 90 440

ø 14 mm 100 440

2.8 Head measurementsSee page 20–23 for In-mast furling mast and page 24–25 for Furlex Main - Retro-fit system.

For other halyard boxes the ”B” measurement is calculated from the upper edge of the sheave to the topmost point of the sail.

”B” mmTalurit-SplicedHalyard Eye

”B” mmHand-SplicedHalyard Eye

”B” mmSpliced

HB

Fig: 2.8.a Fig. 2.8.b

BB

250

A

E & C

15°

70

110

100

110

110

120

110

100

0°

90

120

110

130

130

130

125

120

175

15°

80/280

115/280

100/265

105

90

120

100

120

0°

90/295

120/295

105/280

115

100

130

110

130

120

MastheadFractional

std/long carneTapered

std/long carne

Luff extrusionMast section

mm

ø10.0

ø10.0ø12.0

RB

RC

Aquabatten AO32

Mast section

20

3.3

ø10.62)

ø7.2

Design aspects on in-mast furling main sails, see page 26.

190/94213/104235/116

Max space available

in chamber

3.254.0

ø8.01)ø30

Sail com part-

ment

Sail slotApprox maxfoot length

E max4)

Spare luff groovein mast

Luff groove

Dia-meter

Type

ø85ø90ø100

13.5 ± 3375040004500

15 ± 3

15 ± 3

15 ± 3

3.25

3.25

ø13.0

RA

RD

ø25

ø38

ø58

2.75 ± 0.25

3.25 ± 0.35

3.25 ± 0.25

3.25 ± 0.25

ø6.0

ø10.6

–

Aquabatten AO32 or Rutgerson 101

Aquabatten AO32

Aquabatten AO33 or

Rutgerson 102

Luff groove Max space available for luff tape

Slide

mmmmmmmmmmmmmmmm mm mm

7500

60007000

475055005500

ø174

ø124ø154

ø110ø114ø114

290/150 324/169 3)

214/122232/126260/136

370/192 3)

Sail compartment

Luff groove

Luff tape

3 In-mast furling mast 3.1 R section: manual, hydraulic and electro

Clew with clew-board: Foot (”E”) measured to after point of sail.Clew-board gives longer effective (”E”) than integrated block or normal cringle.

Clew with integrated block:Foot (”E”) measured to after point of block.

Alternative clew executionsE

Fig: 3.1.a Fig: 3.1.b

E

1) 1995 and earlier: ø10 2) Max ø7 mm luff tape due to new sail entry (2001). 3) For sails with horizontal battens, an optional sail guide can be provided art. no 535-811-01. 4) When the sail is fully furled, 300 mm of Emax will remain outside the mast due to reinforcement and clew-board.

Sail slot

Luff tape

Luff groove

R

For motorised Furling

200

Boomsection

Mast section

190/94213/104235/116

21

128/90150/105162/125189/132206/139

*For RCB car 511-617:320

120/62143/76171/94200/117250/140

600600600

140150150

200* 200*

250250250350350

300/155

Tmm

Boom toggle size

Amm

Bmm

400400400

400400400

500500

500

757575

808080

9090

–

–

125125125

135135

135

120 mm80 mm

700

700700

650650650

290/150324/169

214/122232/126260/136

370/192

OSmm

395

100

Red mark(s) may be used to indicate when sail is fully unfurled.

T

70

20

85° – 88°

OS E

30

A

Max

. sai

l spa

ceB

60

50

Mea

sure

men

t to

cent

re o

f boo

m

brac

ket (

mar

ked)

.

R

Fig: 3.1.c

Mast section Luff extrusion

F176 ø85 RA 3750

F194 ø93 RA 4200

RA 4500F212 ø100

RB 4400

F228 ø108 RA 5000

RB 4900

F246 ø114 RB 5400

F265 ø123 RB 6000

RC 5800

F286 ø133 RB 6500

RC 6300

RB 6900

F305 ø141 RC 6700

RD 6000

Section dim., Iy Ix Wall thick- Weight Wymin. Wx

min.

X/Y mm ness, mm kg/m cm4

cm4 cm3 cm3

Furling masts F176 176/93 526 187 2,90 4,12 58,2 40,0

F194 194/101 709 254 3,05 4,69 70,8 49,8

F212 212/109 970 337 3.15 5.45 88,2 61,8

F228 228/118 1306 453 3.4 6.30 112 76.8

F246 246/126 1781 613 3.75 7.37 139 97.3

F265 265/135 2392 828 4.15 8.66 173 122

F286 286/146 3237 1122 4.5 10.02 220 154

F305 305/156 4389 1513 5.05 11.75 276 194

Section

Aquabatten AO32

Sections

RA ø25 2.75 ± 0.25 ø6

RB ø30 3.25 ± 0.35 ø8

RC ø38 3.25 ± 0.25 ø10

RD ø58 3.25 ± 0.25 ø10

Max space for luff tape

mm

Dia-meter

mm

Slide

Luff groove

Luff groove

22

3.2 F section: manual, hydraulic and electroF

X

Y



Alternative clew executionsE

Fig: 3.2.a Fig: 3.2.b

E

17±3 3.25±0.25 10

15±3 3.25±0.25 8

15±3 3.25±0.25 6 –

Sail com-part ment

Sail slotApprox maxfoot length

E max1)

Spare luff groovein mast Luff grooveType

Aquabatten AO31 or

Rutgerson 101

Max space available for luff

tape mm mmmmmmmmmmmm mm

Sail slot

Sail compartment

Luff groove

Luff tapeLuff tape

1) When the sail is fully furled, 300 mm of Emax will remain outside the mast due to reinforcementt and clew-board.

Design aspects on in-mast furling main sails, see page 26.

Mast section

For motorised Furling

A B T A B T A B T A B T

F176 600 400 80

F194 600 400 80

F212 600 400 80

F228 600 400 80 650 400 80

F246 650 400 80

F265 650 400 125 700 500 130

F286 650 400 125 700 500 130

F305 650 400 125 700 500 130 700 500 135

Boomsection

120/62 140

143/76 150

171/94 150

200/117 200*

250/140 200*

300/155 395

23

*For RCB car 511-617:320

RA RB RC RD

OSmm

100

200

Red mark(s) may be used to indicate when sail is fully unfurled.

T

70

20

85° – 88°

OS E

30

A

Max

. sai

l spa

ceB

60

50

Mea

sure

men

t to

cent

re o

f boo

m

brac

ket (

mar

ked)

.

F

Fig: 3.2.c

24

5000

The luff extrusion is asymmetrically shaped in order to help overcome initial resistance when starting to furl. Do not use heavy sail-cloth in the luff area.

Head and tack webbing bands should be of soft quality which can fold easily. 20 mm is a suitable width. Do not use metal cringles on them.

Battens must be located on the port side of the sail so as not to snag on the inside of the sail compartment.

If clew cringles are used they must not be thicker than 14 mm in order to fit the outhaul block. The upper part of the luff extrusion will be kept centered by the halyard swivel, while most of the

section will rest on the aft face of the sail compartment when sailing. The luff curve must have a wedge formed into it for compensation (0 to 30 mm) at the upper 500–800 mm of the luff.

ø30

Luff extrusionFurlex Main – Other section

Sail cham-

ber

Sail slot Max. foot length recommended

”E”

Spare luff groovein mast

Max space available

in chamber

Luff groove

Dia-meter

TypeFurlexMainType

13.5 ± 3

a15 ± 3

3.253.25

3.25

ø9.4ø9.4

ø10.0

RA

RB

ø25 2.75 ± 0.25

3.25 ± 0.35

ø6.0

ø8*

Aquabatten AO31 or

Rutgerson 101

Aquabatten AO32 or

Rutgerson 101

Luff groove Max space available for luff tape

Slide

mmmmmmmmmmmmmmmm mm mm mm

35004000

ø108

ø76ø90

Type 76Type 90

Type 108

Sail chamber

Luff groove

Luff tape chamber

Luff tape

Luff groove

3.3 Furlex Main - Retro-fit system



Alternative clew executions

E

Fig 3.3.a Fig 3.3.b

E

*1995 and earlier: ø10

Sail slot

7690108

25

180180260

Furlex-MainType

600600650

A

270270270

B

606065

T OS

20

BM

ax. s

ail s

pace

60

A

30

EOS

85°–88°T

Mea

sure

men

t to

hori

zont

al p

in

50

Fig 3.3.c

Sail cloth type In general, single layer cloth (e.g. Dacron ™ ) folds easier around the luff extrusion than multi-layer laminate cloth, causing less furling resis-tance. ”Softer” sail cloth therefore allows more sail to be furled into the mast. Sail cloth gene-rally becomes softer with time, so a new sail can cause more furling resistance than a sail that has been used for some time.

Sail cloth dispositionThe luff extrusion is asymmetrically shaped in order to help overcome initial resistance when starting to furl. Do not use heavy sail cloth in the luff area.

Clew dropA furling main sail should have a ”negative” clew-drop of approximately 85° – 88° (see fig. 3.2.c). This increases leech tension when fur-ling and prevents the lower part of the sail roll becoming too bulky. Note that when the sail is furled, the weight of the sail may cause the clew to move downwards.

Luff curve shapeThe upper part of the luff extrusion will be kept centered by the top swivel, while most of the luff extrusion will rest on the aft face of the sail compartment when sailing. The luff curve must have a wedge formed into it for compensation (0-to 30 mm) at the upper 500 – 800 mm of the luff.

Clew reinforcementThe clew reinforcement should be made so that it allows the sail to be furled in leaving approx-imately 300 – 500 mm outside the mast.

Webbing tapeHead and tack webbing tapes should be of soft quality which can fold easily. A suitable width is 20 mm. Do not use cringles.

Luff tapeAvoid using luff tape close to head and tack. The high loads in head and tack may damage the luff tape. (See fig. 3.2.c)Clew cringlesIf clew cringles are used they must not be thick-er than 14 mm in order to fit the outhaul block.

Batten typesThe main batten types used in furling main sails are: full-length vertical battens, short ver-tical battens and horizontal (foldable) battens. Experience has shown that vertical battens work very well whereas horizontal battens have a tendency to snag in the sail slot when the sail is furled out. For sails with horizontal battens (only F-sections) an optional sail guide can be provided (see fig. 3.4.a). If full-length vertical battens are used, round battens generally work bet-ter than square battens since square battens can twist. If short vertical battens are used, square battens often work well and are usually less bulky.

Batten locationBattens must be located on the port side of the sail so as not to snag on the inside of the sail compartment.

End fittings, connectors and tensioning arrangementEnd fittings, connectors and tensioning arrang-ement (vertical battens) should be made as slim as possible. Bulky solutions may cause the bat-tens to snag in the sail slot.

Short vertical battens – vertical displacementShort vertical battens should be located so that they do not overlap each other vertically. The lowest batten should not overlap the clew rein-forcement.

3.4 Design aspects on in-mast furling mast main sails

26

Fig: 3.4.a

27

Hyd

raul

icM

anua

lH

ydra

ulic

Man

ual

Furlex

Type/Serie

500 H 1295675620100ø7ø960/46

640

400 H 48/34 ø8 ø6.5 100 620

550 490

610 1230

4 Furling foresails4.1 Furlex furling and reefing system

See relevant Furlex manual for further information regar ding sail geometry, reefing hints and location of UV-protection.

ø5

C

3.0

A 360

540

B

Max sail space

FL -(F+E)FL

1100 mm

CBE

F

Sails with a luff considerably shorter (more than 500 mm) than the maximum permissible must be fitted with a permanent head pendant. The total luff length including pendant should be just less than the ”Max. sail space” dimension.

Fig: 4.1.a

Fig: 4.1.b

Fig: 4.1.c

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

Sectiondimension

Luffgroove

Max. space available in

chamber

Maximum sail space FL–(F+E)(Measurement calculated fromexisting forestay length: FL).

F+Emm

Emm

Fmm

CBmmmmmmmm

Cut-back

ø6

ø6

ø7

ø8

ø7

ø8

ø9

ø6

ø6

ø7.5

ø7.5

ø5

ø6

ø6

ø6

ø6

ø7

ø5

ø5

ø6.5

ø6.5

60

60

80

100

80

100

100

60

60

80

80

390

540

620

540

620

620

375

550

280

340

420

490

520

675

675

295

330

400

730

960

1110

1060

1295

1295

670

870

950

1040

Max. lufftape

26/17

31/20

40/27

50/34

40/27

50/34

60/46

26/17

31/21

39/27

39/27

D

C-Hydraulic

D-Hydraulic

E-Hydraulic

100 S ø6

3.0 ø6 ø5 60 360 280 64026/17100 S ø4 & 5

200 S

300 S

3.0

3.0

ø8

ø9

ø6.5

ø7

95

95

620

620

535

535

1155

1155

48/34

60/46

400 S

500 S

300 H

min. 50 mm

Luff grooveFurlex toggleheight

Lower pin on furlex toggle Luff tape

chamber

595-

542-

E

Prin

ted

in S

wed

en.

Seldén Mast AB, Sweden Tel +46 (0)31 69 69 00Fax +46 (0)31 29 71 37 e-mail [email protected]

Seldén Mast Limited, UK Tel +44 (0) 1329 504000Fax +44 (0) 1329 504049 e-mail [email protected]

Seldén Mast Inc., USA Tel +1 843-760-6278 Fax +1 843-760-1220 e-mail [email protected]

Seldén Mast A/S, DK Tel +45 39 18 44 00 Fax +45 39 27 17 00 e-mail [email protected]

Seldén Mid Europe B.V., NLTel +31 (0) 111-698 120Fax +31 (0) 111-698 130e-mail [email protected]

Seldén Mast SAS, FRTel +33 (0) 251 362 110Fax +33 (0) 251 362 185e-mail [email protected]

www.seldenmast.com

Dealer:

DINGHIESKEELBOATSYACHTS

The Seldén Group is the world’s leading manu-

facturer of masts and rigging systems in carbon

and aluminium for dinghies, keelboats and yachts.

The Group consists of Seldén Mast AB in Sweden,

Seldén Mast A/S in Denmark, Seldén Mast Ltd

in the UK, Seldén Mid Europe B.V. in the Nether-

lands, Seldén Mast SAS in France and Seldén

Mast Inc in the USA. Our well known brands

are Seldén and Furlex. The worldwide success of

Furlex has enabled us to build a network of over

750 authorised dealers covering the world’s mari-

ne markets. So wherever you sail, you can be sure

of fast access to our service,

spare parts and know-how.

sailmaker’s guide · 2018. 12. 10. · rcb 30 511-595-11 511-695-11 511-590-01 511-690-01...

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