KESSU — ORC Rating | RegattaPages

GPH

798.5

OSN

771.2

LOA

8.12 m

Displacement

2730 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5094

Medium

0.6971

High

0.8115

Triple Offshore

Low

0.6522

Medium

0.85

High

0.9575

Boat Specifications

Dimensions

Length overall: 8.12 m
Beam: 2.77 m
Draft: 1.43 m
Displacement: 2730 kg
Crew weight: 357 kg
Wetted surface: 15.61 m²

Sails

Mainsail: 13.44 m²
Genoa: 18.83 m²
Spinnaker: 45.01 m²
Asymmetric spinnaker: 0 m²

Design

Type: BECKER 27
Builder: BK Marin
Year built: 1974
Stability index: 111.4

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.

6,43.8,3.588449,52,3.96,60,4.17,75,4.3,90,4.38,110,4.49,120,4.36,135,3.95,147.8,3.498019,150,3.42
8,42.4,4.252119,52,4.72,60,4.93,75,5.07,90,5.26,110,5.36,120,5.26,135,4.88,150,4.34,152,4.269789
10,41.2,4.704851,52,5.22,60,5.39,75,5.52,90,5.73,110,5.82,120,5.76,135,5.53,150,5.1,155.6,4.886439
12,40,4.99971,52,5.5,60,5.65,75,5.78,90,6,110,6.12,120,6.08,135,5.9,150,5.61,165.8,5.198849
14,38.9,5.19118,52,5.69,60,5.83,75,5.97,90,6.17,110,6.38,120,6.36,135,6.19,150,5.94,177.2,5.516586
16,38.7,5.317579,52,5.82,60,5.96,75,6.12,90,6.26,110,6.63,120,6.64,135,6.48,150,6.2,179,5.850891
20,38.7,5.343205,52,5.89,60,6.07,75,6.35,90,6.49,110,7,120,7.2,135,7.12,150,6.76,179,6.350967

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.96	4.17	4.3	4.38	4.49	4.36	3.95	3.42
8	4.72	4.93	5.07	5.26	5.36	5.26	4.88	4.34
10	5.22	5.39	5.52	5.73	5.82	5.76	5.53	5.1
12	5.5	5.65	5.78	6	6.12	6.08	5.9	5.61
14	5.69	5.83	5.97	6.17	6.38	6.36	6.19	5.94
16	5.82	5.96	6.12	6.26	6.63	6.64	6.48	6.2
20	5.89	6.07	6.35	6.49	7	7.2	7.12	6.76

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	2.59	147.8°	2.96
8	42.4°	3.14	152°	3.77
10	41.2°	3.54	155.6°	4.45
12	40°	3.83	165.8°	5.04
14	38.9°	4.04	177.2°	5.51
16	38.7°	4.15	179°	5.85
20	38.7°	4.17	179°	6.35

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