SEA CHEF — ORC Rating

GPH

614.1

OSN

599.3

LOA

7.99 m

Displacement

1720 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6849

Medium

0.8775

High

1.0064

Triple Offshore

Low

0.8779

Medium

1.0865

High

1.2313

Boat Specifications

Dimensions

Length overall: 7.99 m
Beam: 2.53 m
Draft: 1.99 m
Displacement: 1720 kg
Crew weight: 350 kg
Wetted surface: 15.4 m²

Sails

Mainsail: 26.6 m²
Genoa: 18.91 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 73.37 m²

Design

Type: SEASCAPE 27
Builder: ISSA
Designer: SAM MANUARD
Year built: 2012
Stability index: 117.1

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.

6,43.5,5.018098,52,5.58,60,5.92,75,6.18,90,6.2,110,5.88,120,5.74,135,5.17,144.3,4.691636,150,4.4
8,41.2,5.834547,52,6.43,60,6.62,75,6.79,90,6.78,110,6.78,120,6.7,135,6.35,146.9,5.729847,150,5.54
10,38.7,6.035131,52,6.67,60,6.88,75,7.26,90,7.31,110,7.42,120,7.41,135,7.01,150,6.42,151.1,6.373759
12,38.1,6.163152,52,6.77,60,7.04,75,7.53,90,7.86,110,7.83,120,8.17,135,7.76,149.5,7.009976,150,6.98
14,37.8,6.201315,52,6.86,60,7.16,75,7.7,90,8.19,110,8.22,120,8.69,135,8.71,146.6,7.869697,150,7.59
16,37.3,6.222709,52,6.89,60,7.27,75,7.84,90,8.4,110,8.75,120,9.19,135,9.82,144.6,8.955651,150,8.43
20,37.9,6.285769,52,6.98,60,7.32,75,7.96,90,8.77,110,9.86,120,10.2,135,11.7,142.2,12.022957,150,10.96

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.58	5.92	6.18	6.2	5.88	5.74	5.17	4.4
8	6.43	6.62	6.79	6.78	6.78	6.7	6.35	5.54
10	6.67	6.88	7.26	7.31	7.42	7.41	7.01	6.42
12	6.77	7.04	7.53	7.86	7.83	8.17	7.76	6.98
14	6.86	7.16	7.7	8.19	8.22	8.69	8.71	7.59
16	6.89	7.27	7.84	8.4	8.75	9.19	9.82	8.43
20	6.98	7.32	7.96	8.77	9.86	10.2	11.7	10.96

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.64	144.3°	3.81
8	41.2°	4.39	146.9°	4.8
10	38.7°	4.71	151.1°	5.58
12	38.1°	4.85	149.5°	6.04
14	37.8°	4.9	146.6°	6.57
16	37.3°	4.95	144.6°	7.3
20	37.9°	4.96	142.2°	9.5

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