XROM — ORC Rating | RegattaPages

GPH

614.8

OSN

598.4

LOA

9.55 m

Displacement

2862 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6647

Medium

0.8936

High

1.0201

Triple Offshore

Low

0.8581

Medium

1.0973

High

1.2388

Boat Specifications

Dimensions

Length overall: 9.55 m
Beam: 2.98 m
Draft: 2.08 m
Displacement: 2862 kg
Crew weight: 500 kg
Wetted surface: 20.68 m²

Sails

Mainsail: 32.98 m²
Genoa: 24.08 m²
Spinnaker: 73.77 m²
Asymmetric spinnaker: 0 m²

Design

Type: GRAND SURPRISE
Builder: ARCHAMBAULT
Designer: NIVELT/JOUBERT
Year built: 1999

Velocity Prediction

Polar CSV

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

6,42,4.776996,52,5.39,60,5.69,75,5.96,90,5.88,110,5.82,120,5.65,135,5.08,140.2,4.802914,150,4.26
8,40.5,5.641723,52,6.38,60,6.62,75,6.8,90,6.81,110,6.9,120,6.8,135,6.3,148,5.447804,150,5.33
10,39.2,6.206896,52,6.87,60,7.04,75,7.2,90,7.23,110,7.44,120,7.37,135,7.05,149.5,6.383257,150,6.36
12,37.9,6.349133,52,7.05,60,7.26,75,7.52,90,7.61,110,7.97,120,7.96,135,7.56,150,7.05,157.5,6.743303
14,37.5,6.428409,52,7.13,60,7.36,75,7.79,90,8.04,110,8.34,120,8.62,135,8.18,150,7.51,180,6.83
16,37.1,6.469539,52,7.17,60,7.42,75,7.94,90,8.43,110,8.71,120,9.14,135,8.92,150,8.07,180,7.29
20,37.5,6.579666,52,7.31,60,7.6,75,8.08,90,8.85,110,9.34,120,9.95,135,10.72,150,9.49,180,8.3

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.39	5.69	5.96	5.88	5.82	5.65	5.08	4.26
8	6.38	6.62	6.8	6.81	6.9	6.8	6.3	5.33
10	6.87	7.04	7.2	7.23	7.44	7.37	7.05	6.36
12	7.05	7.26	7.52	7.61	7.97	7.96	7.56	7.05
14	7.13	7.36	7.79	8.04	8.34	8.62	8.18	7.51
16	7.17	7.42	7.94	8.43	8.71	9.14	8.92	8.07
20	7.31	7.6	8.08	8.85	9.34	9.95	10.72	9.49

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.55	140.2°	3.69
8	40.5°	4.29	148°	4.62
10	39.2°	4.81	149.5°	5.5
12	37.9°	5.01	157.5°	6.23
14	37.5°	5.1	180°	6.83
16	37.1°	5.16	180°	7.29
20	37.5°	5.22	180°	8.3

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