MELAGODO: ORC Rating

GPH

617.8

OSN

599.9

LOA

9.55 m

Displacement

2853 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6635

Medium

0.8851

High

1.0059

Triple Offshore

Low

0.8521

Medium

1.0938

High

1.2314

Boat Specifications

Dimensions

Length overall: 9.55 m
Beam: 2.96 m
Draft: 2.09 m
Displacement: 2853 kg
Crew weight: 500 kg
Wetted surface: 20.44 m²

Sails

Mainsail: 32.7 m²
Genoa: 21.03 m²
Spinnaker: 65.96 m²
Asymmetric spinnaker: 88.55 m²

Design

Type: Grand Surprise
Builder: Archambault
Designer: Joubert/Nivelt
Year built: 2000
Stability index: 108

Performance data

Polar CSV

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

6,42.6,4.754808,52,5.29,60,5.55,75,5.72,90,5.73,110,5.84,120,5.68,135,5.06,143.3,4.614757,150,4.27
8,40.6,5.597472,52,6.24,60,6.47,75,6.63,90,6.74,110,6.92,120,6.84,135,6.33,146.9,5.610475,150,5.42
10,39,6.086373,52,6.79,60,6.98,75,7.13,90,7.18,110,7.54,120,7.51,135,7.17,148.2,6.530236,150,6.41
12,38.2,6.273407,52,7.02,60,7.24,75,7.5,90,7.57,110,8.04,120,8.16,135,7.81,149.8,7.115792,150,7.11
14,37.8,6.36584,52,7.13,60,7.37,75,7.78,90,7.99,110,8.39,120,8.74,135,8.5,150,7.56,167.6,6.860029
16,37.8,6.429118,52,7.19,60,7.47,75,7.95,90,8.34,110,8.71,120,9.2,135,9.28,150,8.05,175.4,7.253364
20,38.4,6.469366,52,7.25,60,7.56,75,8.16,90,8.8,110,9.31,120,10.03,135,11.11,143,10.492897,150,9.68

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.29	5.55	5.72	5.73	5.84	5.68	5.06	4.27
8	6.24	6.47	6.63	6.74	6.92	6.84	6.33	5.42
10	6.79	6.98	7.13	7.18	7.54	7.51	7.17	6.41
12	7.02	7.24	7.5	7.57	8.04	8.16	7.81	7.11
14	7.13	7.37	7.78	7.99	8.39	8.74	8.5	7.56
16	7.19	7.47	7.95	8.34	8.71	9.2	9.28	8.05
20	7.25	7.56	8.16	8.8	9.31	10.03	11.11	9.68

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.5	143.3°	3.7
8	40.6°	4.25	146.9°	4.7
10	39°	4.73	148.2°	5.55
12	38.2°	4.93	149.8°	6.15
14	37.8°	5.03	167.6°	6.7
16	37.8°	5.08	175.4°	7.23
20	38.4°	5.07	143°	8.38

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°	5.29	6.24	6.79	7.02	7.13	7.19	7.25
60°	5.55	6.47	6.98	7.24	7.37	7.47	7.56
75°	5.72	6.63	7.13	7.50	7.78	7.95	8.16
90°	5.73	6.74	7.18	7.57	7.99	8.34	8.80
110°	5.84	6.92	7.54	8.04	8.39	8.71	9.31
120°	5.68	6.84	7.51	8.16	8.74	9.20	10.03
135°	5.06	6.33	7.17	7.81	8.50	9.28	11.11
150°	4.27	5.42	6.41	7.11	7.56	8.05	9.68