YAMAHOELA — ORC Rating

GPH

779.1

OSN

752.4

LOA

7.46 m

Displacement

1336 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5105

Medium

0.7084

High

0.8364

Triple Offshore

Low

0.6587

Medium

0.8737

High

1.0054

Boat Specifications

Dimensions

Length overall: 7.46 m
Beam: 3.08 m
Draft: 1.54 m
Displacement: 1336 kg
Crew weight: 340 kg
Wetted surface: 12.91 m²

Sails

Mainsail: 14.69 m²
Genoa: 13.53 m²
Spinnaker: 30.85 m²
Asymmetric spinnaker: 0 m²

Design

Type: YAMAHA 1/4 TON
Builder: YAMAHA
Designer: YAMAHA DESIGN GROU
Year built: 1979
Stability index: 94.8

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.

6,43.8,3.630014,52,4.03,60,4.27,75,4.45,90,4.51,110,4.54,120,4.38,135,3.92,148.7,3.440774,150,3.39
8,42.4,4.279203,52,4.81,60,5.08,75,5.26,90,5.45,110,5.47,120,5.34,135,4.86,150,4.32,152.9,4.212476
10,42.4,4.834416,52,5.38,60,5.59,75,5.74,90,5.98,110,5.99,120,5.9,135,5.62,150,5.13,154.7,4.933178
12,41.4,5.225893,52,5.72,60,5.88,75,6.03,90,6.36,110,6.4,120,6.28,135,6.04,150,5.73,164.6,5.32105
14,39.6,5.437934,52,5.95,60,6.11,75,6.29,90,6.67,110,6.8,120,6.68,135,6.41,150,6.09,176.6,5.66998
16,39.1,5.52802,52,6.09,60,6.3,75,6.55,90,6.84,110,7.18,120,7.07,135,6.79,150,6.44,179,6.020917
20,40.5,5.562818,52,6.11,60,6.4,75,6.86,90,7.15,110,7.86,120,7.98,135,7.61,150,7.14,179,6.671016

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.03	4.27	4.45	4.51	4.54	4.38	3.92	3.39
8	4.81	5.08	5.26	5.45	5.47	5.34	4.86	4.32
10	5.38	5.59	5.74	5.98	5.99	5.9	5.62	5.13
12	5.72	5.88	6.03	6.36	6.4	6.28	6.04	5.73
14	5.95	6.11	6.29	6.67	6.8	6.68	6.41	6.09
16	6.09	6.3	6.55	6.84	7.18	7.07	6.79	6.44
20	6.11	6.4	6.86	7.15	7.86	7.98	7.61	7.14

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	2.62	148.7°	2.94
8	42.4°	3.16	152.9°	3.75
10	42.4°	3.57	154.7°	4.46
12	41.4°	3.92	164.6°	5.13
14	39.6°	4.19	176.6°	5.66
16	39.1°	4.29	179°	6.02
20	40.5°	4.23	179°	6.67

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