TAPORA: ORC Rating

GPH

787.1

OSN

759.8

LOA

9.21 m

Displacement

3716 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5018

Medium

0.6953

High

0.8421

Triple Offshore

Low

0.6474

Medium

0.8666

High

1.0031

Boat Specifications

Dimensions

Length overall: 9.21 m
Beam: 3.02 m
Draft: 1.7 m
Displacement: 3716 kg
Crew weight: 405 kg
Wetted surface: 18.58 m²

Sails

Mainsail: 17.49 m²
Genoa: 19.29 m²
Spinnaker: 48.33 m²
Asymmetric spinnaker: 0 m²

Design

Type: ARPEGE MK II
Builder: DUFOUR
Designer: DUFOUR
Year built: 1968
Stability index: 119.9

Performance data

Polar CSV

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

6,44.8,3.509164,52,3.85,60,4.1,75,4.26,90,4.44,110,4.53,120,4.4,135,4,148.4,3.522256,150,3.46
8,43.2,4.156557,52,4.61,60,4.87,75,5.06,90,5.4,110,5.52,120,5.38,135,4.92,150,4.38,152.3,4.291876
10,42.4,4.631289,52,5.2,60,5.5,75,5.72,90,6.06,110,6.14,120,6.06,135,5.73,150,5.17,153.8,5.004133
12,42.9,5.132805,52,5.68,60,5.9,75,6.07,90,6.37,110,6.47,120,6.41,135,6.2,150,5.84,158.3,5.542804
14,41.7,5.451101,52,5.97,60,6.14,75,6.29,90,6.59,110,6.76,120,6.7,135,6.5,150,6.24,171.8,5.779084
16,40.5,5.628572,52,6.13,60,6.29,75,6.46,90,6.7,110,7.04,120,7,135,6.8,150,6.52,179,6.130934
20,40.2,5.734515,52,6.27,60,6.48,75,6.75,90,6.9,110,7.39,120,7.51,135,7.4,150,7.08,179,6.671016

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.85	4.1	4.26	4.44	4.53	4.4	4	3.46
8	4.61	4.87	5.06	5.4	5.52	5.38	4.92	4.38
10	5.2	5.5	5.72	6.06	6.14	6.06	5.73	5.17
12	5.68	5.9	6.07	6.37	6.47	6.41	6.2	5.84
14	5.97	6.14	6.29	6.59	6.76	6.7	6.5	6.24
16	6.13	6.29	6.46	6.7	7.04	7	6.8	6.52
20	6.27	6.48	6.75	6.9	7.39	7.51	7.4	7.08

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.8°	2.49	148.4°	3
8	43.2°	3.03	152.3°	3.8
10	42.4°	3.42	153.8°	4.49
12	42.9°	3.76	158.3°	5.15
14	41.7°	4.07	171.8°	5.72
16	40.5°	4.28	179°	6.13
20	40.2°	4.38	179°	6.67

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°	3.85	4.61	5.20	5.68	5.97	6.13	6.27
60°	4.10	4.87	5.50	5.90	6.14	6.29	6.48
75°	4.26	5.06	5.72	6.07	6.29	6.46	6.75
90°	4.44	5.40	6.06	6.37	6.59	6.70	6.90
110°	4.53	5.52	6.14	6.47	6.76	7.04	7.39
120°	4.40	5.38	6.06	6.41	6.70	7.00	7.51
135°	4.00	4.92	5.73	6.20	6.50	6.80	7.40
150°	3.46	4.38	5.17	5.84	6.24	6.52	7.08