RAN: ORC Rating

GPH

627.7

OSN

612.2

LOA

7.5 m

Displacement

1022 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6783

Medium

0.8578

High

0.9919

Triple Offshore

Low

0.8607

Medium

1.0608

High

1.2074

Boat Specifications

Dimensions

Length overall: 7.5 m
Beam: 2.07 m
Draft: 1.72 m
Displacement: 1022 kg
Crew weight: 300 kg
Wetted surface: 12.26 m²

Sails

Mainsail: 23.15 m²
Genoa: 11.93 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 61.08 m²

Design

Type: Esse 750
Builder: Proteus Yachts
Designer: U. Felci
Year built: 2012
Stability index: 126.1

Performance data

Polar CSV

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

6,42,4.817365,52,5.38,60,5.63,75,5.79,90,5.76,110,5.9,120,5.79,135,5.23,143.4,4.770698,150,4.42
8,39.4,5.499955,52,6.14,60,6.32,75,6.46,90,6.42,110,6.73,120,6.7,135,6.31,148.2,5.671304,150,5.57
10,38.1,5.705681,52,6.39,60,6.62,75,6.93,90,6.98,110,7.26,120,7.47,135,7.13,150,6.37,150.9,6.317436
12,38.2,5.840758,52,6.51,60,6.78,75,7.21,90,7.52,110,7.69,120,8.07,135,8.06,148.7,7.185835,150,7.09
14,38.2,5.904383,52,6.58,60,6.88,75,7.4,90,7.91,110,8.1,120,8.64,135,9.19,145.5,8.348236,150,7.94
16,38.5,5.941671,52,6.63,60,6.95,75,7.53,90,8.18,110,8.56,120,9.2,135,10.29,144,9.678412,150,9.05
20,39.4,5.939952,52,6.6,60,6.98,75,7.68,90,8.53,110,9.85,120,10.28,135,11.92,146,12.725599,150,12.18

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.38	5.63	5.79	5.76	5.9	5.79	5.23	4.42
8	6.14	6.32	6.46	6.42	6.73	6.7	6.31	5.57
10	6.39	6.62	6.93	6.98	7.26	7.47	7.13	6.37
12	6.51	6.78	7.21	7.52	7.69	8.07	8.06	7.09
14	6.58	6.88	7.4	7.91	8.1	8.64	9.19	7.94
16	6.63	6.95	7.53	8.18	8.56	9.2	10.29	9.05
20	6.6	6.98	7.68	8.53	9.85	10.28	11.92	12.18

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.58	143.4°	3.83
8	39.4°	4.25	148.2°	4.82
10	38.1°	4.49	150.9°	5.52
12	38.2°	4.59	148.7°	6.14
14	38.2°	4.64	145.5°	6.88
16	38.5°	4.65	144°	7.83
20	39.4°	4.59	146°	10.55

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°	5.38	6.14	6.39	6.51	6.58	6.63	6.60
60°	5.63	6.32	6.62	6.78	6.88	6.95	6.98
75°	5.79	6.46	6.93	7.21	7.40	7.53	7.68
90°	5.76	6.42	6.98	7.52	7.91	8.18	8.53
110°	5.90	6.73	7.26	7.69	8.10	8.56	9.85
120°	5.79	6.70	7.47	8.07	8.64	9.20	10.28
135°	5.23	6.31	7.13	8.06	9.19	10.29	11.92
150°	4.42	5.57	6.37	7.09	7.94	9.05	12.18