YAMAHOELA — ORC Rating

GPH

780.2

OSN

753.5

LOA

7.46 m

Displacement

1396 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5157

Medium

0.711

High

0.8313

Triple Offshore

Low

0.6637

Medium

0.8707

High

0.992

Boat Specifications

Dimensions

Length overall: 7.46 m
Beam: 3.08 m
Draft: 1.54 m
Displacement: 1396 kg
Crew weight: 325 kg
Wetted surface: 13.44 m²

Sails

Mainsail: 14.69 m²
Genoa: 13.17 m²
Spinnaker: 33.02 m²
Asymmetric spinnaker: 0 m²

Design

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

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.

6,43.8,3.713144,52,4.09,60,4.31,75,4.45,90,4.54,110,4.58,120,4.42,135,3.91,147.8,3.438931,150,3.36
8,42.4,4.387537,52,4.86,60,5.07,75,5.22,90,5.42,110,5.45,120,5.32,135,4.87,150,4.31,151.8,4.243714
10,41.4,4.852615,52,5.37,60,5.54,75,5.67,90,5.92,110,5.95,120,5.86,135,5.59,150,5.1,155.5,4.890318
12,40,5.156359,52,5.67,60,5.82,75,5.96,90,6.23,110,6.3,120,6.22,135,6,150,5.68,167.3,5.227903
14,38.8,5.350695,52,5.87,60,6.01,75,6.18,90,6.46,110,6.64,120,6.56,135,6.33,150,6.04,177.2,5.606694
16,38.4,5.461319,52,6,60,6.16,75,6.38,90,6.6,110,6.99,120,6.94,135,6.67,150,6.35,178.6,5.96178
20,39.5,5.4949,52,6.04,60,6.26,75,6.64,90,6.88,110,7.71,120,8.01,135,7.59,150,7.03,178.6,6.541953
24,42.7,5.48363,52,5.97,60,6.24,75,6.71,90,7.22,110,8.24,120,9.44,135,9.45,150,8.12,176.6,7.242748

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.09	4.31	4.45	4.54	4.58	4.42	3.91	3.36
8	4.86	5.07	5.22	5.42	5.45	5.32	4.87	4.31
10	5.37	5.54	5.67	5.92	5.95	5.86	5.59	5.1
12	5.67	5.82	5.96	6.23	6.3	6.22	6	5.68
14	5.87	6.01	6.18	6.46	6.64	6.56	6.33	6.04
16	6	6.16	6.38	6.6	6.99	6.94	6.67	6.35
20	6.04	6.26	6.64	6.88	7.71	8.01	7.59	7.03
24	5.97	6.24	6.71	7.22	8.24	9.44	9.45	8.12

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	2.68	147.8°	2.91
8	42.4°	3.24	151.8°	3.74
10	41.4°	3.64	155.5°	4.45
12	40°	3.95	167.3°	5.1
14	38.8°	4.17	177.2°	5.6
16	38.4°	4.28	178.6°	5.96
20	39.5°	4.24	178.6°	6.54
24	42.7°	4.03	176.6°	7.23

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