OKIROI — ORC Rating | RegattaPages

GPH

747.5

OSN

724.3

LOA

9.37 m

Displacement

4011 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5314

Medium

0.7254

High

0.8588

Triple Offshore

Low

0.6871

Medium

0.9112

High

1.0405

Boat Specifications

Dimensions

Length overall: 9.37 m
Beam: 3.22 m
Draft: 1.75 m
Displacement: 4011 kg
Crew weight: 450 kg
Wetted surface: 19.98 m²

Sails

Mainsail: 19.12 m²
Genoa: 20.95 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 51.93 m²

Design

Type: FIRST 305
Builder: BENETEAU
Designer: BERRET
Year built: 1986
Stability index: 116.9

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.

6,44.4,3.793007,52,4.17,60,4.42,75,4.58,90,4.71,110,4.75,120,4.59,135,4.16,145.7,3.72837,150,3.56
8,42.7,4.476711,52,4.99,60,5.26,75,5.44,90,5.73,110,5.8,120,5.61,135,5.14,146.4,4.67031,150,4.49
10,41.7,4.982333,52,5.61,60,5.89,75,6.09,90,6.36,110,6.42,120,6.33,135,5.99,145.7,5.507819,150,5.26
12,41.8,5.486427,52,6.05,60,6.25,75,6.41,90,6.68,110,6.75,120,6.69,135,6.48,147.1,6.062267,150,5.88
14,40.6,5.768689,52,6.3,60,6.46,75,6.61,90,6.91,110,7.05,120,7,135,6.79,150,6.27,152,6.161181
16,39.7,5.874711,52,6.44,60,6.61,75,6.79,90,7.04,110,7.36,120,7.32,135,7.08,150,6.55,173.6,6.007439
20,40.5,5.970495,52,6.52,60,6.74,75,7.07,90,7.25,110,7.86,120,7.97,135,7.72,150,7,179,6.611007

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.17	4.42	4.58	4.71	4.75	4.59	4.16	3.56
8	4.99	5.26	5.44	5.73	5.8	5.61	5.14	4.49
10	5.61	5.89	6.09	6.36	6.42	6.33	5.99	5.26
12	6.05	6.25	6.41	6.68	6.75	6.69	6.48	5.88
14	6.3	6.46	6.61	6.91	7.05	7	6.79	6.27
16	6.44	6.61	6.79	7.04	7.36	7.32	7.08	6.55
20	6.52	6.74	7.07	7.25	7.86	7.97	7.72	7

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	2.71	145.7°	3.08
8	42.7°	3.29	146.4°	3.89
10	41.7°	3.72	145.7°	4.55
12	41.8°	4.09	147.1°	5.09
14	40.6°	4.38	152°	5.44
16	39.7°	4.52	173.6°	5.97
20	40.5°	4.54	179°	6.61

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