CLEM PRIMERO: ORC Rating

GPH

531.1

OSN

516.6

LOA

17.175 m

Displacement

20163 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.754

Medium

1.026

High

1.1932

Triple Offshore

Low

0.9817

Medium

1.2786

High

1.4337

Boat Specifications

Dimensions

Length overall: 17.175 m
Beam: 4.71 m
Draft: 2.7 m
Displacement: 20163 kg
Crew weight: 1100 kg
Wetted surface: 57.56 m²

Sails

Mainsail: 78.42 m²
Genoa: 94.42 m²
Spinnaker: 222.51 m²
Asymmetric spinnaker: 213.5 m²

Design

Type: Swan 56-5
Builder: Nautor
Designer: G. Frers
Year built: 1997
Stability index: 121.9

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,44.2,5.691086,52,6.3,60,6.67,75,6.94,90,6.87,110,6.68,120,6.33,135,5.59,141.9,5.159257,150,4.69
8,41.8,6.69371,52,7.48,60,7.81,75,8.04,90,8.1,110,8,120,7.69,135,7.02,145.1,6.328096,150,5.99
10,40.6,7.30964,52,8.17,60,8.46,75,8.67,90,8.79,110,8.8,120,8.64,135,8.15,147.5,7.315701,150,7.12
12,39.6,7.592342,52,8.5,60,8.78,75,9.02,90,9.14,110,9.26,120,9.19,135,8.88,150,8.1,152.9,7.896988
14,39.3,7.805229,52,8.67,60,8.94,75,9.23,90,9.36,110,9.62,120,9.6,135,9.37,150,8.8,157.7,8.387288
16,38.8,7.891313,52,8.78,60,9.04,75,9.37,90,9.58,110,9.93,120,9.98,135,9.79,150,9.27,166.4,8.611457
20,38.4,8.013337,52,8.9,60,9.16,75,9.55,90,9.92,110,10.46,120,10.61,135,10.66,150,10.1,178.4,9.333639

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.3	6.67	6.94	6.87	6.68	6.33	5.59	4.69
8	7.48	7.81	8.04	8.1	8	7.69	7.02	5.99
10	8.17	8.46	8.67	8.79	8.8	8.64	8.15	7.12
12	8.5	8.78	9.02	9.14	9.26	9.19	8.88	8.1
14	8.67	8.94	9.23	9.36	9.62	9.6	9.37	8.8
16	8.78	9.04	9.37	9.58	9.93	9.98	9.79	9.27
20	8.9	9.16	9.55	9.92	10.46	10.61	10.66	10.1

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	4.08	141.9°	4.06
8	41.8°	4.99	145.1°	5.19
10	40.6°	5.55	147.5°	6.17
12	39.6°	5.85	152.9°	7.03
14	39.3°	6.04	157.7°	7.76
16	38.8°	6.15	166.4°	8.37
20	38.4°	6.28	178.4°	9.33

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	6.30	7.48	8.17	8.50	8.67	8.78	8.90
60°	6.67	7.81	8.46	8.78	8.94	9.04	9.16
75°	6.94	8.04	8.67	9.02	9.23	9.37	9.55
90°	6.87	8.10	8.79	9.14	9.36	9.58	9.92
110°	6.68	8.00	8.80	9.26	9.62	9.93	10.46
120°	6.33	7.69	8.64	9.19	9.60	9.98	10.61
135°	5.59	7.02	8.15	8.88	9.37	9.79	10.66
150°	4.69	5.99	7.12	8.10	8.80	9.27	10.10