SURPRISE — ORC Rating

GPH

623.4

OSN

603

LOA

9.99 m

Displacement

2917 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6462

Medium

0.8861

High

1.0223

Triple Offshore

Low

0.8325

Medium

1.0893

High

1.2386

Boat Specifications

Dimensions

Length overall: 9.99 m
Beam: 2.74 m
Draft: 1.78 m
Displacement: 2917 kg
Crew weight: 450 kg
Wetted surface: 20.34 m²

Sails

Mainsail: 27.88 m²
Genoa: 26.46 m²
Spinnaker: 91.44 m²
Asymmetric spinnaker: 66.38 m²

Design

Type: Adams 10
Builder: Adams
Designer: Joe Adams
Year built: 1987
Stability index: -1

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.

4,43.6,3.327939,52,3.77,60,4.01,75,4.17,90,4.07,110,4.2,120,4.06,135,3.52,140,3.328789,150,2.95
6,43.6,4.625974,52,5.11,60,5.39,75,5.58,90,5.57,110,5.73,120,5.6,135,5.01,140,4.764737,150,4.22
8,41.2,5.462412,52,6.1,60,6.35,75,6.53,90,6.66,110,6.84,120,6.76,135,6.27,148.7,5.430338,150,5.36
10,39.7,6.043674,52,6.72,60,6.91,75,7.05,90,7.21,110,7.46,120,7.41,135,7.12,149.8,6.409998,150,6.4
12,38.5,6.286671,52,7,60,7.2,75,7.41,90,7.51,110,8.01,120,7.99,135,7.76,150,7.19,156.2,6.918338
14,37.9,6.387152,52,7.11,60,7.35,75,7.69,90,7.85,110,8.47,120,8.61,135,8.44,150,7.79,163.9,7.181671
16,37.8,6.45443,52,7.18,60,7.43,75,7.87,90,8.19,110,8.8,120,9.21,135,9.16,150,8.44,161.8,7.821283
20,37.9,6.513881,52,7.26,60,7.55,75,8.1,90,8.66,110,9.5,120,10.24,135,10.73,150,9.99,153.2,9.713352
24,39,6.523871,52,7.26,60,7.57,75,8.22,90,8.95,110,9.9,120,11.32,135,13.27,145.8,13.227248,150,12.63

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
4	3.77	4.01	4.17	4.07	4.2	4.06	3.52	2.95
6	5.11	5.39	5.58	5.57	5.73	5.6	5.01	4.22
8	6.1	6.35	6.53	6.66	6.84	6.76	6.27	5.36
10	6.72	6.91	7.05	7.21	7.46	7.41	7.12	6.4
12	7	7.2	7.41	7.51	8.01	7.99	7.76	7.19
14	7.11	7.35	7.69	7.85	8.47	8.61	8.44	7.79
16	7.18	7.43	7.87	8.19	8.8	9.21	9.16	8.44
20	7.26	7.55	8.1	8.66	9.5	10.24	10.73	9.99
24	7.26	7.57	8.22	8.95	9.9	11.32	13.27	12.63

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
4	43.6°	2.41	140°	2.55
6	43.6°	3.35	140°	3.65
8	41.2°	4.11	148.7°	4.64
10	39.7°	4.65	149.8°	5.54
12	38.5°	4.92	156.2°	6.33
14	37.9°	5.04	163.9°	6.9
16	37.8°	5.1	161.8°	7.43
20	37.9°	5.14	153.2°	8.67
24	39°	5.07	145.8°	10.94

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