Harken Furling Units Dimensions

harken furling units, harken furling unit dimensions

How to size Furling Units

1. Determine unit based on wire or rod, and clevis pin diameter. Typical boat lengths are listed as a guideline but are not the determining factor. Check with Harken if your length varies.

2. Measure headstay from center of pin holding headstay to masthead toggle (A), to center of pin holding headstay to chainplate (B) to determine if extra foil and connector are required.

3. Choose terminal required. Headstay terminal sold separately. Swage fitting must be installed by rigger with special equipment. Sta-Lok or Norseman can be installed without special equipment. Rod headstay use a special adaptor fitting and must be cut and coldheaded by an authorized rod service center.

4. Choose accessories to complete system.

5. Sail modifications: Ask your sailmaker to add #6 (6/32" or 5 mm) luff tape to your genoa. Units 4 and 4.5 can also use #7, (7/32" or 6 mm) luff tape. Carbon furling units accept only #6 (6/32" or 5 mm) luff tape. Consider a leech cover to protect sail from UV rays when it's furled.

Furling Dimensions:

Unit

A
in/mm

B
in/mm

C
in/mm

D
in/mm

E
in/mm

F
in/mm

G
in/mm

H
in/mm

I
in/mm

J
in/mm

Max

Min

Max

Min

Max

Min

Max

Min

00AL

3 3/4
95

6 5/16
160

9
229

5/8
16

38
965

33
838

7 3/8
187

6 1/8
156

5 3/4
146

5 11/16
144

2 1/2
63

4 1/16
103

6 5/8
168

8 7/8
225

1 1/16
27

38 1/3
989

30 7/8
783

10 5/9
268

9 5/16
236

8 1/4
209

7
178

5 13/16
147

5 11/16
144

4
102

2 3/4
70

4 7/8
124

7 3/8
187

9 15/16
252

1 1/4
32

40 1/2
1029

32
813

12 1/4
311

10 3/4
273

9 7/8
251

8 3/8
213

7 7/16
188

7 1/4
184

5 1/4
133

3 3/4
95

1.5

4 7/8
124

7 3/8
187

9 15/16
252

1 1/4
32

46 3/8
1178

37 7/8
962

12 1/2
318

11
279

10 1/8
257

8 5/8
219

7 7/16
188

7 1/4
184

5 1/2
140

4
102

6 1/4
159

9 3/4
248

12 1/4
311

1 5/8
41

46 1/2
1181

36
914

16 1/4
413

14 1/4
362

13 1/8
333

11 1/8
282

9 1/2
241

9 1/4
235

6
152

4
102

2.5

6 1/4
159

9 3/4
248

12 1/4
311

1 5/8
41

55 3/4
1416

44 1/4
1124

18
457

15 1/2
394

14 7/8
378

12 3/8
314

9 1/2
241

9 1/4
235

7 3/4
197

5 1/4
133

7 3/4
197

12
305

16 1/8
410

1 3/4
44

53 1/4
1352

39 3/4
1010

20 1/2
521

17 1/2
445

17
432

14
356

12
305

11 7/8
302

9
229

6
152

3.25

7 3/4
297

12
305

16 1/8
410

1 3/4
44

55 1/4
1403

41 3/4
1060

20 1/2
521

17 1/2
445

17
432

14
356

12
305

11 7/8
302

9
229

6
152

3.5

9 3/16
233

13 3/16
335

17
432

1 3/4
44

59
1499

53
1346

23
584

19 3/4
502

19 1/2
495

16 1/4
413

12
305

11 7/8
302

11 1/2
292

8 1/4
209

10 5/8
270

15 1/4
387

31
787

2 3/4
70

68
1727

60
1524

29
737

25
635

24
610

20
508

13 7/16
342

13 1/4
337

14
356

10
254

4.5

14
356

18 1/8
460

36
914

3
76

68 1/2
1740

63 1/2
1613

31
787

26
660

21
533

13 7/16
342

13 1/4
337

15 1/2
394

10 1/2
267