5
Swan 42 Tuning Guide
Solutions for today’s sailors
TWS
< 8 kts
8-11 kts
11-13 kts
14-17 kts
18+ kts
Jack
130
170
250
320
370
D1
No read
10
27
44
43
D2
5
10
20
35
46
V1
60
62
65
68
70
Headstay
Minus 6 from BASE (max)
Minus 3 from BASE
BASE
Plus 6 from BASE
Plus 12 from BASE (max)
Plates
1 Red
1 Blue
1 Red and 1 Blue
1 Red and 2 Blue
2 Red and 2 Blue
Mast Step Position
50mm
50mm
50mm
50mm
50mm
Plate Method Tuning Guide
Tuning Chart: Plate Method
•
Max headstay length for the class rule
is 18.765. Base headstay length is 6
turns on from max long.
•
Using the top jib halyard, the arc
measurement for max length is 1.735
(see pages 3 and 4). BASE is 1.725.
•
6 turns equals 10mm. Total tuning
range is 30mm. Headstays may vary.
•
Plates listed are in addition to 1
supplied 25mm plate and 1 supplied
19mm plate which are always under
the mast.
•
Jack pressure measured in “Bars.”
•
Step position is measured from aft
edge of bulkhead above the trim to
the forward edge of the mast.
•
Loos Guage #10 is used on the D2s.
Numbers may vary with gauge.
•
Loos Guage #11 is used on the D1s and
V1s. Numbers may vary with gauge.
•
Turn Headstay counter clockwise to
tighten. Clockwise to loosen.
