ESPEROS: ORC Rating

GPH

751.1

OSN

727.5

LOA

9.95 m

Displacement

4594 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5288

Medium

0.7261

High

0.8437

Triple Offshore

Low

0.6852

Medium

0.9088

High

1.0222

Boat Specifications

Dimensions

Length overall: 9.95 m
Beam: 3.2 m
Draft: 1.63 m
Displacement: 4594 kg
Crew weight: 450 kg
Wetted surface: 21.91 m²

Sails

Mainsail: 20.59 m²
Genoa: 23.3 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 0 m²

Design

Type: Greyhound 33
Builder: W. Jenneskens
Designer: W. Jenneskens
Year built: 1977
Stability index: 122.7

Performance data

Polar CSV

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

6,45,3.988082,52,4.37,60,4.64,75,4.81,90,4.73,110,4.51,120,4.35,135,3.9,144.8,3.524467,150,3.33
8,43.2,4.732714,52,5.25,60,5.5,75,5.69,90,5.65,110,5.55,120,5.39,135,4.94,145.2,4.518058,150,4.29
10,42,5.27488,52,5.82,60,6.02,75,6.18,90,6.2,110,6.24,120,6.13,135,5.77,145.2,5.346166,150,5.07
12,41.2,5.608608,52,6.13,60,6.31,75,6.47,90,6.54,110,6.62,120,6.55,135,6.32,145.7,5.943603,150,5.66
14,40.6,5.742348,52,6.3,60,6.48,75,6.66,90,6.78,110,6.89,120,6.84,135,6.65,150,6.08,175.4,5.307095
16,40.2,5.81307,52,6.38,60,6.57,75,6.81,90,6.97,110,7.14,120,7.11,135,6.92,150,6.4,177.2,5.836969
20,40.2,5.839255,52,6.42,60,6.64,75,6.97,90,7.2,110,7.61,120,7.65,135,7.43,150,6.85,178.4,6.512539

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.37	4.64	4.81	4.73	4.51	4.35	3.9	3.33
8	5.25	5.5	5.69	5.65	5.55	5.39	4.94	4.29
10	5.82	6.02	6.18	6.2	6.24	6.13	5.77	5.07
12	6.13	6.31	6.47	6.54	6.62	6.55	6.32	5.66
14	6.3	6.48	6.66	6.78	6.89	6.84	6.65	6.08
16	6.38	6.57	6.81	6.97	7.14	7.11	6.92	6.4
20	6.42	6.64	6.97	7.2	7.61	7.65	7.43	6.85

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45°	2.82	144.8°	2.88
8	43.2°	3.45	145.2°	3.71
10	42°	3.92	145.2°	4.39
12	41.2°	4.22	145.7°	4.91
14	40.6°	4.36	175.4°	5.29
16	40.2°	4.44	177.2°	5.83
20	40.2°	4.46	178.4°	6.51

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°	4.37	5.25	5.82	6.13	6.30	6.38	6.42
60°	4.64	5.50	6.02	6.31	6.48	6.57	6.64
75°	4.81	5.69	6.18	6.47	6.66	6.81	6.97
90°	4.73	5.65	6.20	6.54	6.78	6.97	7.20
110°	4.51	5.55	6.24	6.62	6.89	7.14	7.61
120°	4.35	5.39	6.13	6.55	6.84	7.11	7.65
135°	3.90	4.94	5.77	6.32	6.65	6.92	7.43
150°	3.33	4.29	5.07	5.66	6.08	6.40	6.85