FRIENDS: ORC Rating

GPH

634.4

OSN

617.5

LOA

8.988 m

Displacement

3102 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7441

Medium

0.9854

High

1.1138

Triple Offshore

Low

0.9512

Medium

1.1898

High

1.322

Boat Specifications

Dimensions

Length overall: 8.988 m
Beam: 3.09 m
Draft: 2.04 m
Displacement: 3102 kg
Crew weight: 536 kg
Wetted surface: 19.61 m²

Sails

Mainsail: 31.85 m²
Genoa: 31.55 m²
Spinnaker: 63.46 m²
Asymmetric spinnaker: 0 m²

Design

Type: YAMAHA 30S N
Builder: YAMAHA
Designer: YAMAHA
Year built: 1999

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,41.1,4.830383,52,5.45,60,5.71,75,5.91,90,5.85,110,5.56,120,5.39,135,4.87,145.4,4.33707,150,4.12
8,40,5.70463,52,6.32,60,6.48,75,6.58,90,6.58,110,6.54,120,6.42,135,5.96,150,5.16,150.1,5.156323
10,37.5,6.062872,52,6.66,60,6.79,75,6.91,90,6.93,110,7.01,120,6.92,135,6.64,150,6.07,152.6,5.947182
12,36.2,6.171307,52,6.81,60,6.97,75,7.17,90,7.25,110,7.44,120,7.35,135,7.04,150,6.67,162.8,6.239019
14,35.6,6.223091,52,6.88,60,7.06,75,7.38,90,7.56,110,7.87,120,7.84,135,7.46,150,7.04,180,6.55
16,35.8,6.288038,52,6.92,60,7.12,75,7.5,90,7.84,110,8.14,120,8.34,135,7.96,150,7.44,180,6.93
20,35.8,6.349685,52,6.98,60,7.18,75,7.61,90,8.18,110,8.62,120,9.13,135,9.2,150,8.39,180,7.71

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.45	5.71	5.91	5.85	5.56	5.39	4.87	4.12
8	6.32	6.48	6.58	6.58	6.54	6.42	5.96	5.16
10	6.66	6.79	6.91	6.93	7.01	6.92	6.64	6.07
12	6.81	6.97	7.17	7.25	7.44	7.35	7.04	6.67
14	6.88	7.06	7.38	7.56	7.87	7.84	7.46	7.04
16	6.92	7.12	7.5	7.84	8.14	8.34	7.96	7.44
20	6.98	7.18	7.61	8.18	8.62	9.13	9.2	8.39

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.1°	3.64	145.4°	3.57
8	40°	4.37	150.1°	4.47
10	37.5°	4.81	152.6°	5.28
12	36.2°	4.98	162.8°	5.96
14	35.6°	5.06	180°	6.55
16	35.8°	5.1	180°	6.93
20	35.8°	5.15	180°	7.71

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	5.45	6.32	6.66	6.81	6.88	6.92	6.98
60°	5.71	6.48	6.79	6.97	7.06	7.12	7.18
75°	5.91	6.58	6.91	7.17	7.38	7.50	7.61
90°	5.85	6.58	6.93	7.25	7.56	7.84	8.18
110°	5.56	6.54	7.01	7.44	7.87	8.14	8.62
120°	5.39	6.42	6.92	7.35	7.84	8.34	9.13
135°	4.87	5.96	6.64	7.04	7.46	7.96	9.20
150°	4.12	5.16	6.07	6.67	7.04	7.44	8.39