PESTO: ORC Rating

GPH

610

OSN

595.3

LOA

10.57 m

Displacement

3875 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6716

Medium

0.8917

High

1.0026

Triple Offshore

Low

0.8715

Medium

1.1048

High

1.2278

Boat Specifications

Dimensions

Length overall: 10.57 m
Beam: 3.35 m
Draft: 2 m
Displacement: 3875 kg
Crew weight: 390 kg
Wetted surface: 24.39 m²

Sails

Mainsail: 34.22 m²
Genoa: 39.43 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 88.98 m²

Design

Type: J-105
Builder: TILLOTSON-PEARSON
Designer: JOHNSTONE
Year built: 1994

Performance data

Polar CSV

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

6,42.8,4.906438,52,5.48,60,5.79,75,6.05,90,6.23,110,6.03,120,5.71,135,5.05,144,4.561091,150,4.26
8,41.2,5.807966,52,6.52,60,6.76,75,6.94,90,7.13,110,7.03,120,6.82,135,6.27,147.5,5.525311,150,5.38
10,39.8,6.32579,52,6.99,60,7.16,75,7.32,90,7.55,110,7.53,120,7.42,135,7.1,148.5,6.462281,150,6.36
12,38.6,6.487354,52,7.16,60,7.35,75,7.59,90,7.88,110,8.01,120,7.93,135,7.59,150,7.04,150.2,7.018025
14,37.9,6.5519,52,7.24,60,7.45,75,7.8,90,8.14,110,8.52,120,8.49,135,8.12,150,7.39,152,7.282425
16,38.2,6.629706,52,7.29,60,7.51,75,7.93,90,8.34,110,9,120,9.05,135,8.72,150,7.76,177,6.999593
20,38.1,6.684161,52,7.33,60,7.55,75,8.06,90,8.66,110,9.7,120,10.11,135,10.25,150,8.78,177.5,7.757383

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.48	5.79	6.05	6.23	6.03	5.71	5.05	4.26
8	6.52	6.76	6.94	7.13	7.03	6.82	6.27	5.38
10	6.99	7.16	7.32	7.55	7.53	7.42	7.1	6.36
12	7.16	7.35	7.59	7.88	8.01	7.93	7.59	7.04
14	7.24	7.45	7.8	8.14	8.52	8.49	8.12	7.39
16	7.29	7.51	7.93	8.34	9	9.05	8.72	7.76
20	7.33	7.55	8.06	8.66	9.7	10.11	10.25	8.78

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.6	144°	3.69
8	41.2°	4.37	147.5°	4.66
10	39.8°	4.86	148.5°	5.51
12	38.6°	5.07	150.2°	6.09
14	37.9°	5.17	152°	6.43
16	38.2°	5.21	177°	6.99
20	38.1°	5.26	177.5°	7.75

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°	5.48	6.52	6.99	7.16	7.24	7.29	7.33
60°	5.79	6.76	7.16	7.35	7.45	7.51	7.55
75°	6.05	6.94	7.32	7.59	7.80	7.93	8.06
90°	6.23	7.13	7.55	7.88	8.14	8.34	8.66
110°	6.03	7.03	7.53	8.01	8.52	9.00	9.70
120°	5.71	6.82	7.42	7.93	8.49	9.05	10.11
135°	5.05	6.27	7.10	7.59	8.12	8.72	10.25
150°	4.26	5.38	6.36	7.04	7.39	7.76	8.78