Kelso — ORC Rating | RegattaPages

GPH

622.6

OSN

606.5

LOA

11.97 m

Displacement

7076 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6554

Medium

0.8831

High

1.0157

Triple Offshore

Low

0.8479

Medium

1.0854

High

1.2054

Boat Specifications

Dimensions

Length overall: 11.97 m
Beam: 3.5 m
Draft: 1.95 m
Displacement: 7076 kg
Crew weight: 678 kg
Wetted surface: 29.19 m²

Sails

Mainsail: 43.64 m²
Genoa: 46.41 m²
Spinnaker: 91.38 m²
Asymmetric spinnaker: 88.63 m²

Design

Type: CROWN 39
Builder: Finngulf Marine
Designer: Håkan Södergren
Year built: 1986
Stability index: 122.8

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.

6,43,4.840339,52,5.39,60,5.69,75,5.95,90,5.89,110,5.68,120,5.49,135,4.95,144.2,4.438615,150,4.16
8,41.8,5.687641,52,6.37,60,6.66,75,6.85,90,6.85,110,6.83,120,6.66,135,6.05,148.7,5.289898,150,5.22
10,41.4,6.332396,52,6.94,60,7.12,75,7.26,90,7.31,110,7.38,120,7.29,135,6.94,150,6.15,151.1,6.088196
12,40,6.553145,52,7.16,60,7.33,75,7.5,90,7.6,110,7.73,120,7.67,135,7.4,150,6.95,156.8,6.647552
14,38.9,6.617469,52,7.26,60,7.44,75,7.67,90,7.8,110,8.07,120,8.02,135,7.74,150,7.38,170,6.833821
16,38.4,6.660768,52,7.31,60,7.51,75,7.8,90,8.01,110,8.38,120,8.4,135,8.11,150,7.71,179,7.2211
20,38.4,6.724568,52,7.35,60,7.56,75,7.94,90,8.36,110,8.77,120,9.09,135,8.9,150,8.43,179,7.871199

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.39	5.69	5.95	5.89	5.68	5.49	4.95	4.16
8	6.37	6.66	6.85	6.85	6.83	6.66	6.05	5.22
10	6.94	7.12	7.26	7.31	7.38	7.29	6.94	6.15
12	7.16	7.33	7.5	7.6	7.73	7.67	7.4	6.95
14	7.26	7.44	7.67	7.8	8.07	8.02	7.74	7.38
16	7.31	7.51	7.8	8.01	8.38	8.4	8.11	7.71
20	7.35	7.56	7.94	8.36	8.77	9.09	8.9	8.43

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.54	144.2°	3.6
8	41.8°	4.24	148.7°	4.52
10	41.4°	4.75	151.1°	5.33
12	40°	5.02	156.8°	6.11
14	38.9°	5.15	170°	6.73
16	38.4°	5.22	179°	7.22
20	38.4°	5.27	179°	7.87

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