YAMAHOELA — ORC Rating

GPH

779.7

OSN

752.9

LOA

7.46 m

Displacement

1400 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5173

Medium

0.7122

High

0.83

Triple Offshore

Low

0.6646

Medium

0.8712

High

0.9909

Boat Specifications

Dimensions

Length overall: 7.46 m
Beam: 3.08 m
Draft: 1.54 m
Displacement: 1400 kg
Crew weight: 325 kg
Wetted surface: 13.25 m²

Sails

Mainsail: 14.69 m²
Genoa: 13.17 m²
Spinnaker: 31.76 m²
Asymmetric spinnaker: 0 m²

Design

Type: YAMAHA 1/4 TON
Builder: YAMAHA
Designer: YAMAHA DESIGN GROU
Year built: 1979
Stability index: 94.2

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.

6,43.6,3.714588,52,4.11,60,4.32,75,4.46,90,4.52,110,4.56,120,4.4,135,3.91,148.4,3.428329,150,3.37
8,42,4.386763,52,4.88,60,5.08,75,5.22,90,5.41,110,5.43,120,5.3,135,4.86,150,4.31,152.3,4.22411
10,41.4,4.879277,52,5.38,60,5.55,75,5.68,90,5.91,110,5.94,120,5.85,135,5.57,150,5.09,156.8,4.841507
12,39.9,5.161861,52,5.67,60,5.82,75,5.97,90,6.23,110,6.3,120,6.21,135,5.99,150,5.66,169.4,5.188541
14,38.8,5.350695,52,5.87,60,6.02,75,6.19,90,6.47,110,6.64,120,6.55,135,6.32,150,6.03,177.2,5.606694
16,38.5,5.443337,52,6,60,6.17,75,6.38,90,6.61,110,6.98,120,6.93,135,6.66,150,6.34,179,5.960908
20,39.9,5.500771,52,6.04,60,6.27,75,6.65,90,6.89,110,7.7,120,7.98,135,7.57,150,7.02,179,6.550998

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.11	4.32	4.46	4.52	4.56	4.4	3.91	3.37
8	4.88	5.08	5.22	5.41	5.43	5.3	4.86	4.31
10	5.38	5.55	5.68	5.91	5.94	5.85	5.57	5.09
12	5.67	5.82	5.97	6.23	6.3	6.21	5.99	5.66
14	5.87	6.02	6.19	6.47	6.64	6.55	6.32	6.03
16	6	6.17	6.38	6.61	6.98	6.93	6.66	6.34
20	6.04	6.27	6.65	6.89	7.7	7.98	7.57	7.02

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	2.69	148.4°	2.92
8	42°	3.26	152.3°	3.74
10	41.4°	3.66	156.8°	4.45
12	39.9°	3.96	169.4°	5.1
14	38.8°	4.17	177.2°	5.6
16	38.5°	4.26	179°	5.96
20	39.9°	4.22	179°	6.55

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