FEHURIHI: ORC Rating

GPH

717.9

OSN

694.4

LOA

8.99 m

Displacement

4091 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5598

Medium

0.7714

High

0.9084

Triple Offshore

Low

0.7211

Medium

0.9469

High

1.0715

Boat Specifications

Dimensions

Length overall: 8.99 m
Beam: 3.25 m
Draft: 1.77 m
Displacement: 4091 kg
Crew weight: 494 kg
Wetted surface: 20.48 m²

Sails

Mainsail: 22.19 m²
Genoa: 26.25 m²
Spinnaker: 59.24 m²
Asymmetric spinnaker: 0 m²

Design

Type: RO 300
Builder: RONAUTICA
Designer: J. VISIERS
Year built: 1989
Stability index: 112.3

Performance data

Polar CSV

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

6,43.2,4.019377,52,4.48,60,4.73,75,4.9,90,4.85,110,4.91,120,4.77,135,4.3,147.5,3.758634,150,3.66
8,41.2,4.67827,52,5.29,60,5.57,75,5.77,90,5.85,110,5.94,120,5.78,135,5.25,150,4.63,152,4.541606
10,41.4,5.29255,52,5.9,60,6.11,75,6.26,90,6.41,110,6.48,120,6.4,135,6.09,150,5.47,152.9,5.335803
12,40,5.691576,52,6.25,60,6.39,75,6.51,90,6.71,110,6.8,120,6.73,135,6.52,150,6.17,159.2,5.829964
14,38.7,5.894183,52,6.44,60,6.57,75,6.71,90,6.9,110,7.1,120,7.03,135,6.82,150,6.54,173.6,6.057752
16,38.1,5.972539,52,6.54,60,6.7,75,6.88,90,7.01,110,7.41,120,7.37,135,7.13,150,6.82,179,6.430979
20,37.6,5.982661,52,6.6,60,6.79,75,7.14,90,7.36,110,7.8,120,7.99,135,7.81,150,7.43,179,6.981063

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.48	4.73	4.9	4.85	4.91	4.77	4.3	3.66
8	5.29	5.57	5.77	5.85	5.94	5.78	5.25	4.63
10	5.9	6.11	6.26	6.41	6.48	6.4	6.09	5.47
12	6.25	6.39	6.51	6.71	6.8	6.73	6.52	6.17
14	6.44	6.57	6.71	6.9	7.1	7.03	6.82	6.54
16	6.54	6.7	6.88	7.01	7.41	7.37	7.13	6.82
20	6.6	6.79	7.14	7.36	7.8	7.99	7.81	7.43

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	2.93	147.5°	3.17
8	41.2°	3.52	152°	4.01
10	41.4°	3.97	152.9°	4.75
12	40°	4.36	159.2°	5.45
14	38.7°	4.6	173.6°	6.02
16	38.1°	4.7	179°	6.43
20	37.6°	4.74	179°	6.98

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°	4.48	5.29	5.90	6.25	6.44	6.54	6.60
60°	4.73	5.57	6.11	6.39	6.57	6.70	6.79
75°	4.90	5.77	6.26	6.51	6.71	6.88	7.14
90°	4.85	5.85	6.41	6.71	6.90	7.01	7.36
110°	4.91	5.94	6.48	6.80	7.10	7.41	7.80
120°	4.77	5.78	6.40	6.73	7.03	7.37	7.99
135°	4.30	5.25	6.09	6.52	6.82	7.13	7.81
150°	3.66	4.63	5.47	6.17	6.54	6.82	7.43