Skeleton Key — ORC Rating

GPH

523.4

OSN

510.4

LOA

11.3 m

Displacement

3533 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7838

Medium

1.0269

High

1.1905

Triple Offshore

Low

1.0132

Medium

1.2824

High

1.4728

Boat Specifications

Dimensions

Length overall: 11.3 m
Beam: 3.65 m
Draft: 2.51 m
Displacement: 3533 kg
Crew weight: 758 kg
Wetted surface: 27.8 m²

Sails

Mainsail: 52.47 m²
Genoa: 35.7 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 163.29 m²

Design

Type: IC-37
Builder: Melges
Designer: Mills
Year built: 2017
Stability index: 123.1

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.

6,43,5.729102,52,6.38,60,6.72,75,6.98,90,7.21,110,7.02,120,6.74,135,5.95,142.4,5.43993,150,4.98
8,40.6,6.664284,52,7.42,60,7.67,75,7.83,90,8.11,110,8.06,120,7.92,135,7.49,145.1,6.693882,150,6.34
10,38.7,6.983326,52,7.84,60,8.13,75,8.44,90,8.69,110,8.89,120,8.81,135,8.4,148.2,7.60096,150,7.46
12,38.4,7.196691,52,8.04,60,8.39,75,8.91,90,9.1,110,9.72,120,9.68,135,9.33,150,8.36,150.9,8.285912
14,38.2,7.304129,52,8.18,60,8.57,75,9.19,90,9.67,110,10.4,120,10.55,135,10.46,148.2,9.342356,150,9.17
16,38.2,7.380479,52,8.28,60,8.7,75,9.4,90,10.1,110,10.96,120,11.51,135,11.68,146.4,10.625254,150,10.22
20,38.7,7.418983,52,8.36,60,8.83,75,9.68,90,10.69,110,12.03,120,13.04,135,14.12,144.4,13.934312,150,13.08

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.38	6.72	6.98	7.21	7.02	6.74	5.95	4.98
8	7.42	7.67	7.83	8.11	8.06	7.92	7.49	6.34
10	7.84	8.13	8.44	8.69	8.89	8.81	8.4	7.46
12	8.04	8.39	8.91	9.1	9.72	9.68	9.33	8.36
14	8.18	8.57	9.19	9.67	10.4	10.55	10.46	9.17
16	8.28	8.7	9.4	10.1	10.96	11.51	11.68	10.22
20	8.36	8.83	9.68	10.69	12.03	13.04	14.12	13.08

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	4.19	142.4°	4.31
8	40.6°	5.06	145.1°	5.49
10	38.7°	5.45	148.2°	6.46
12	38.4°	5.64	150.9°	7.24
14	38.2°	5.74	148.2°	7.94
16	38.2°	5.8	146.4°	8.85
20	38.7°	5.79	144.4°	11.33

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