THALASSA: ORC Rating

GPH

677.3

OSN

655.2

LOA

11.398 m

Displacement

7826 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.663

Medium

0.913

High

1.0704

Triple Offshore

Low

0.8539

Medium

1.1328

High

1.2794

Boat Specifications

Dimensions

Length overall: 11.398 m
Beam: 3.36 m
Draft: 2.19 m
Displacement: 7826 kg
Crew weight: 400 kg
Wetted surface: 31.78 m²

Sails

Mainsail: 34.84 m²
Genoa: 37.36 m²
Spinnaker: 95 m²
Asymmetric spinnaker: 81.31 m²

Design

Type: MAXI 108 MODIFIED
Builder: SJOFARTVERKET
Designer: PELLE PETTERSSON
Year built: 1979

Performance data

Polar CSV

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

6,43.5,4.190939,52,4.66,60,4.92,75,5.13,90,5.09,110,5.18,120,5.04,135,4.58,146.5,4.041321,150,3.89
8,41.2,4.904209,52,5.52,60,5.79,75,6.04,90,6.15,110,6.3,120,6.15,135,5.63,150,4.92,150.5,4.894551
10,40.7,5.513535,52,6.24,60,6.52,75,6.72,90,6.88,110,7,120,6.93,135,6.57,150,5.82,151.4,5.74043
12,41.5,6.061774,52,6.68,60,6.88,75,7.05,90,7.22,110,7.36,120,7.32,135,7.1,150,6.6,154.8,6.387961
14,40.8,6.27481,52,6.88,60,7.08,75,7.26,90,7.36,110,7.64,120,7.64,135,7.43,150,7.09,171.6,6.47951
16,40.3,6.333028,52,6.97,60,7.18,75,7.41,90,7.53,110,7.89,120,7.95,135,7.75,150,7.41,180,6.94
20,40.5,6.365021,52,7,60,7.23,75,7.58,90,7.87,110,8.2,120,8.48,135,8.43,150,8.02,180,7.56

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.66	4.92	5.13	5.09	5.18	5.04	4.58	3.89
8	5.52	5.79	6.04	6.15	6.3	6.15	5.63	4.92
10	6.24	6.52	6.72	6.88	7	6.93	6.57	5.82
12	6.68	6.88	7.05	7.22	7.36	7.32	7.1	6.6
14	6.88	7.08	7.26	7.36	7.64	7.64	7.43	7.09
16	6.97	7.18	7.41	7.53	7.89	7.95	7.75	7.41
20	7	7.23	7.58	7.87	8.2	8.48	8.43	8.02

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.04	146.5°	3.37
8	41.2°	3.69	150.5°	4.26
10	40.7°	4.18	151.4°	5.04
12	41.5°	4.54	154.8°	5.78
14	40.8°	4.75	171.6°	6.41
16	40.3°	4.83	180°	6.94
20	40.5°	4.84	180°	7.56

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°	4.66	5.52	6.24	6.68	6.88	6.97	7.00
60°	4.92	5.79	6.52	6.88	7.08	7.18	7.23
75°	5.13	6.04	6.72	7.05	7.26	7.41	7.58
90°	5.09	6.15	6.88	7.22	7.36	7.53	7.87
110°	5.18	6.30	7.00	7.36	7.64	7.89	8.20
120°	5.04	6.15	6.93	7.32	7.64	7.95	8.48
135°	4.58	5.63	6.57	7.10	7.43	7.75	8.43
150°	3.89	4.92	5.82	6.60	7.09	7.41	8.02