CHESS — ORC Rating | RegattaPages

GPH

684.1

OSN

663.6

LOA

10.112 m

Displacement

4306 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6636

Medium

0.9078

High

1.0516

Triple Offshore

Low

0.8556

Medium

1.1165

High

1.2548

Boat Specifications

Dimensions

Length overall: 10.112 m
Beam: 3.41 m
Draft: 1.76 m
Displacement: 4306 kg
Crew weight: 300 kg
Wetted surface: 22.16 m²

Sails

Mainsail: 29.53 m²
Genoa: 30.51 m²
Spinnaker: 62.62 m²
Asymmetric spinnaker: 0 m²

Design

Type: DEHLER 34
Builder: DEHLER
Designer: V. DE STADT
Year built: 1981

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.

6,43.2,4.252584,52,4.73,60,4.99,75,5.21,90,5.16,110,5.14,120,4.99,135,4.51,147,3.97057,150,3.84
8,41.8,4.9901,52,5.62,60,5.92,75,6.13,90,6.15,110,6.22,120,6.07,135,5.53,150,4.85,151.1,4.797453
10,41.9,5.656234,52,6.26,60,6.45,75,6.59,90,6.7,110,6.77,120,6.69,135,6.36,150,5.72,152.9,5.582935
12,40.7,6.014765,52,6.55,60,6.71,75,6.86,90,7.01,110,7.13,120,7.05,135,6.8,150,6.42,159.1,6.069335
14,39.8,6.130549,52,6.7,60,6.88,75,7.07,90,7.18,110,7.48,120,7.4,135,7.14,150,6.82,180,6.29
16,39.5,6.194722,52,6.77,60,6.98,75,7.25,90,7.38,110,7.81,120,7.77,135,7.5,150,7.13,180,6.72
20,40.1,6.235935,52,6.81,60,7.05,75,7.48,90,7.8,110,8.17,120,8.44,135,8.25,150,7.82,180,7.35

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.73	4.99	5.21	5.16	5.14	4.99	4.51	3.84
8	5.62	5.92	6.13	6.15	6.22	6.07	5.53	4.85
10	6.26	6.45	6.59	6.7	6.77	6.69	6.36	5.72
12	6.55	6.71	6.86	7.01	7.13	7.05	6.8	6.42
14	6.7	6.88	7.07	7.18	7.48	7.4	7.14	6.82
16	6.77	6.98	7.25	7.38	7.81	7.77	7.5	7.13
20	6.81	7.05	7.48	7.8	8.17	8.44	8.25	7.82

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.1	147°	3.33
8	41.8°	3.72	151.1°	4.2
10	41.9°	4.21	152.9°	4.97
12	40.7°	4.56	159.1°	5.67
14	39.8°	4.71	180°	6.29
16	39.5°	4.78	180°	6.72
20	40.1°	4.77	180°	7.35

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