YPERION: ORC Rating

GPH

710.4

OSN

691

LOA

9.03 m

Displacement

3100 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6341

Medium

0.8596

High

0.9915

Triple Offshore

Low

0.8242

Medium

1.0751

High

1.2083

Boat Specifications

Dimensions

Length overall: 9.03 m
Beam: 3.04 m
Draft: 1.53 m
Displacement: 3100 kg
Crew weight: 480 kg
Wetted surface: 18.92 m²

Sails

Mainsail: 22.54 m²
Genoa: 20.5 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 52.89 m²

Design

Type: DUFOUR 30 CLASSIC
Builder: DUFOUR
Designer: J & J
Year built: 1996

Performance data

Polar CSV

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

6,44.2,4.017237,52,4.49,60,4.79,75,5.02,90,5.07,110,5.1,120,4.92,135,4.43,146.3,3.930505,150,3.78
8,42.6,4.727637,52,5.34,60,5.67,75,5.92,90,6.08,110,6.14,120,5.97,135,5.45,147.3,4.884073,150,4.75
10,42.4,5.335461,52,5.96,60,6.22,75,6.4,90,6.62,110,6.66,120,6.57,135,6.25,146.9,5.741784,150,5.56
12,41.7,5.785935,52,6.33,60,6.51,75,6.68,90,6.94,110,7.03,120,6.94,135,6.69,149,6.218156,150,6.15
14,41.1,5.998168,52,6.53,60,6.71,75,6.9,90,7.16,110,7.42,120,7.33,135,7.04,150,6.53,174.5,5.836872
16,41.1,6.051249,52,6.6,60,6.82,75,7.11,90,7.29,110,7.78,120,7.73,135,7.42,150,6.81,176.9,6.319247
20,42.7,6.068732,52,6.59,60,6.84,75,7.32,90,7.71,110,8.27,120,8.56,135,8.2,150,7.38,178.1,6.923807

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.49	4.79	5.02	5.07	5.1	4.92	4.43	3.78
8	5.34	5.67	5.92	6.08	6.14	5.97	5.45	4.75
10	5.96	6.22	6.4	6.62	6.66	6.57	6.25	5.56
12	6.33	6.51	6.68	6.94	7.03	6.94	6.69	6.15
14	6.53	6.71	6.9	7.16	7.42	7.33	7.04	6.53
16	6.6	6.82	7.11	7.29	7.78	7.73	7.42	6.81
20	6.59	6.84	7.32	7.71	8.27	8.56	8.2	7.38

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.88	146.3°	3.27
8	42.6°	3.48	147.3°	4.11
10	42.4°	3.94	146.9°	4.81
12	41.7°	4.32	149°	5.33
14	41.1°	4.52	174.5°	5.81
16	41.1°	4.56	176.9°	6.31
20	42.7°	4.46	178.1°	6.92

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°	4.49	5.34	5.96	6.33	6.53	6.60	6.59
60°	4.79	5.67	6.22	6.51	6.71	6.82	6.84
75°	5.02	5.92	6.40	6.68	6.90	7.11	7.32
90°	5.07	6.08	6.62	6.94	7.16	7.29	7.71
110°	5.10	6.14	6.66	7.03	7.42	7.78	8.27
120°	4.92	5.97	6.57	6.94	7.33	7.73	8.56
135°	4.43	5.45	6.25	6.69	7.04	7.42	8.20
150°	3.78	4.75	5.56	6.15	6.53	6.81	7.38