OJALA' II — ORC Rating

GPH

666.7

OSN

649.2

LOA

11.51 m

Displacement

8213 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6137

Medium

0.822

High

0.9531

Triple Offshore

Low

0.7875

Medium

1.0135

High

1.1346

Boat Specifications

Dimensions

Length overall: 11.51 m
Beam: 3.5 m
Draft: 1.96 m
Displacement: 8213 kg
Crew weight: 650 kg
Wetted surface: 28.75 m²

Sails

Mainsail: 30.08 m²
Genoa: 54.84 m²
Spinnaker: 99.66 m²
Asymmetric spinnaker: 99.17 m²

Design

Type: IOR one ton
Builder: Royal Huisman
Designer: Sparkman&Stephens
Year built: 1966

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.

6,42.6,4.455934,52,4.94,60,5.21,75,5.42,90,5.38,110,5.24,120,5.1,135,4.66,147,4.137501,150,4
8,42,5.153773,52,5.78,60,6.09,75,6.31,90,6.3,110,6.32,120,6.15,135,5.63,150,4.98,152,4.881377
10,42,5.813133,52,6.44,60,6.64,75,6.79,90,6.84,110,6.92,120,6.84,135,6.5,150,5.81,152,5.719479
12,41.4,6.185751,52,6.75,60,6.92,75,7.05,90,7.16,110,7.26,120,7.2,135,6.98,150,6.56,156.5,6.270036
14,40.5,6.299267,52,6.9,60,7.08,75,7.24,90,7.31,110,7.56,120,7.51,135,7.3,150,6.98,175,6.384294
16,40.1,6.37974,52,6.98,60,7.18,75,7.41,90,7.5,110,7.83,120,7.82,135,7.6,150,7.27,180,6.84
20,40.1,6.445107,52,7.04,60,7.26,75,7.6,90,7.86,110,8.12,120,8.35,135,8.22,150,7.85,180,7.42

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.94	5.21	5.42	5.38	5.24	5.1	4.66	4
8	5.78	6.09	6.31	6.3	6.32	6.15	5.63	4.98
10	6.44	6.64	6.79	6.84	6.92	6.84	6.5	5.81
12	6.75	6.92	7.05	7.16	7.26	7.2	6.98	6.56
14	6.9	7.08	7.24	7.31	7.56	7.51	7.3	6.98
16	6.98	7.18	7.41	7.5	7.83	7.82	7.6	7.27
20	7.04	7.26	7.6	7.86	8.12	8.35	8.22	7.85

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.28	147°	3.47
8	42°	3.83	152°	4.31
10	42°	4.32	152°	5.05
12	41.4°	4.64	156.5°	5.75
14	40.5°	4.79	175°	6.36
16	40.1°	4.88	180°	6.84
20	40.1°	4.93	180°	7.42

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