Ulrika: ORC Rating

GPH

672.5

OSN

660.1

LOA

10.572 m

Displacement

4740 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6161

Medium

0.8081

High

0.9174

Triple Offshore

Low

0.8025

Medium

0.9965

High

1.0933

Boat Specifications

Dimensions

Length overall: 10.572 m
Beam: 2.93 m
Draft: 1.78 m
Displacement: 4740 kg
Crew weight: 400 kg
Wetted surface: 22.22 m²

Sails

Mainsail: 32.55 m²
Genoa: 19.48 m²
Spinnaker: 77.56 m²
Asymmetric spinnaker: 0 m²

Design

Type: Athena 34
Builder: Poseidon yachts
Designer: Hakan Sodergren
Year built: 1981

Performance data

Polar CSV

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

6,43.5,4.535589,52,5.06,60,5.42,75,5.81,90,5.87,110,5.41,120,5.26,135,4.77,146,4.185576,150,4
8,42,5.194142,52,5.91,60,6.24,75,6.5,90,6.54,110,6.41,120,6.3,135,5.8,150,5,151,4.950723
10,42.4,5.660464,52,6.28,60,6.53,75,6.77,90,6.84,110,6.84,120,6.79,135,6.55,150,5.92,150.5,5.905631
12,40.7,5.816911,52,6.43,60,6.66,75,6.92,90,7.06,110,7.12,120,7.11,135,6.91,150,6.57,161,6.187081
14,40.5,5.917891,52,6.51,60,6.73,75,7.01,90,7.25,110,7.3,120,7.44,135,7.24,150,6.91,180,6.44
16,40.5,5.970495,52,6.55,60,6.77,75,7.08,90,7.4,110,7.47,120,7.71,135,7.61,150,7.22,180,6.81
20,39.8,6.039437,52,6.64,60,6.81,75,7.14,90,7.56,110,7.88,120,8.04,135,8.33,150,7.93,180,7.42

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.06	5.42	5.81	5.87	5.41	5.26	4.77	4
8	5.91	6.24	6.5	6.54	6.41	6.3	5.8	5
10	6.28	6.53	6.77	6.84	6.84	6.79	6.55	5.92
12	6.43	6.66	6.92	7.06	7.12	7.11	6.91	6.57
14	6.51	6.73	7.01	7.25	7.3	7.44	7.24	6.91
16	6.55	6.77	7.08	7.4	7.47	7.71	7.61	7.22
20	6.64	6.81	7.14	7.56	7.88	8.04	8.33	7.93

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.29	146°	3.47
8	42°	3.86	151°	4.33
10	42.4°	4.18	150.5°	5.14
12	40.7°	4.41	161°	5.85
14	40.5°	4.5	180°	6.44
16	40.5°	4.54	180°	6.81
20	39.8°	4.64	180°	7.42

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°	5.06	5.91	6.28	6.43	6.51	6.55	6.64
60°	5.42	6.24	6.53	6.66	6.73	6.77	6.81
75°	5.81	6.50	6.77	6.92	7.01	7.08	7.14
90°	5.87	6.54	6.84	7.06	7.25	7.40	7.56
110°	5.41	6.41	6.84	7.12	7.30	7.47	7.88
120°	5.26	6.30	6.79	7.11	7.44	7.71	8.04
135°	4.77	5.80	6.55	6.91	7.24	7.61	8.33
150°	4.00	5.00	5.92	6.57	6.91	7.22	7.93