OPTIMUM 4 — ORC Rating

GPH

587.4

OSN

575

LOA

9.12 m

Displacement

2749 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7164

Medium

0.9138

High

1.0351

Triple Offshore

Low

0.9185

Medium

1.1355

High

1.2821

Boat Specifications

Dimensions

Length overall: 9.12 m
Beam: 3.26 m
Draft: 2.17 m
Displacement: 2749 kg
Crew weight: 500 kg
Wetted surface: 20.65 m²

Sails

Mainsail: 34.41 m²
Genoa: 28.19 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 99.77 m²

Design

Type: DEHLER 30 OD
Builder: DEHLER
Year built: 2019
Stability index: 119

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.

6,42.6,5.420481,52,6.04,60,6.33,75,6.54,90,6.51,110,6.04,120,5.86,135,5.24,144.2,4.746852,150,4.45
8,40,6.096252,52,6.78,60,6.99,75,7.16,90,7.17,110,7.01,120,6.93,135,6.49,147.8,5.731552,150,5.6
10,38.2,6.311582,52,7.06,60,7.3,75,7.63,90,7.72,110,7.68,120,7.63,135,7.27,148.8,6.640446,150,6.55
12,38.1,6.493548,52,7.2,60,7.49,75,7.93,90,8.23,110,8.28,120,8.34,135,7.96,149.8,7.231496,150,7.22
14,37.5,6.554457,52,7.3,60,7.61,75,8.14,90,8.62,110,8.72,120,9.07,135,8.72,147.5,7.96783,150,7.76
16,37.5,6.604875,52,7.38,60,7.71,75,8.29,90,8.92,110,9.12,120,9.72,135,9.63,144.8,8.909069,150,8.41
20,38.2,6.655156,52,7.45,60,7.84,75,8.53,90,9.35,110,10.38,120,10.8,135,12.19,141.4,11.413649,150,10.3

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.04	6.33	6.54	6.51	6.04	5.86	5.24	4.45
8	6.78	6.99	7.16	7.17	7.01	6.93	6.49	5.6
10	7.06	7.3	7.63	7.72	7.68	7.63	7.27	6.55
12	7.2	7.49	7.93	8.23	8.28	8.34	7.96	7.22
14	7.3	7.61	8.14	8.62	8.72	9.07	8.72	7.76
16	7.38	7.71	8.29	8.92	9.12	9.72	9.63	8.41
20	7.45	7.84	8.53	9.35	10.38	10.8	12.19	10.3

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.99	144.2°	3.85
8	40°	4.67	147.8°	4.85
10	38.2°	4.96	148.8°	5.68
12	38.1°	5.11	149.8°	6.25
14	37.5°	5.2	147.5°	6.72
16	37.5°	5.24	144.8°	7.28
20	38.2°	5.23	141.4°	8.92

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