UK Sailmakers: ORC Rating

GPH

724.6

OSN

702

LOA

7.65 m

Displacement

1410 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5785

Medium

0.7728

High

0.8759

Triple Offshore

Low

0.7349

Medium

0.9281

High

1.0341

Boat Specifications

Dimensions

Length overall: 7.65 m
Beam: 2.76 m
Draft: 1.5 m
Displacement: 1410 kg
Crew weight: 510 kg
Wetted surface: 12.06 m²

Sails

Mainsail: 18.69 m²
Genoa: 16.77 m²
Spinnaker: 36.67 m²
Asymmetric spinnaker: 0 m²

Design

Type: Conrad 25R
Builder: Gdansk, Poland
Designer: Peterson
Year built: 1976
Stability index: 105.8

Performance data

Polar CSV

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

6,41.1,4.23322,52,4.75,60,4.94,75,5.03,90,4.93,110,4.88,120,4.72,135,4.24,147.8,3.687101,150,3.6
8,39.7,4.912922,52,5.45,60,5.58,75,5.65,90,5.68,110,5.68,120,5.56,135,5.14,150,4.55,152.3,4.449998
10,37.8,5.302757,52,5.81,60,5.92,75,6,90,6.11,110,6.13,120,6.03,135,5.78,150,5.33,156.5,5.081456
12,36,5.475781,52,6.01,60,6.13,75,6.27,90,6.41,110,6.51,120,6.41,135,6.17,150,5.85,169.1,5.387192
14,35.5,5.539754,52,6.13,60,6.28,75,6.48,90,6.61,110,6.87,120,6.78,135,6.52,150,6.21,177.2,5.776897
16,35.4,5.581947,52,6.19,60,6.37,75,6.64,90,6.78,110,7.19,120,7.18,135,6.88,150,6.54,179,6.120932
20,36.1,5.618882,52,6.25,60,6.46,75,6.81,90,7.16,110,7.81,120,8.17,135,7.8,150,7.24,179,6.751028

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.75	4.94	5.03	4.93	4.88	4.72	4.24	3.6
8	5.45	5.58	5.65	5.68	5.68	5.56	5.14	4.55
10	5.81	5.92	6	6.11	6.13	6.03	5.78	5.33
12	6.01	6.13	6.27	6.41	6.51	6.41	6.17	5.85
14	6.13	6.28	6.48	6.61	6.87	6.78	6.52	6.21
16	6.19	6.37	6.64	6.78	7.19	7.18	6.88	6.54
20	6.25	6.46	6.81	7.16	7.81	8.17	7.8	7.24

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.1°	3.19	147.8°	3.12
8	39.7°	3.78	152.3°	3.94
10	37.8°	4.19	156.5°	4.66
12	36°	4.43	169.1°	5.29
14	35.5°	4.51	177.2°	5.77
16	35.4°	4.55	179°	6.12
20	36.1°	4.54	179°	6.75

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°	4.75	5.45	5.81	6.01	6.13	6.19	6.25
60°	4.94	5.58	5.92	6.13	6.28	6.37	6.46
75°	5.03	5.65	6.00	6.27	6.48	6.64	6.81
90°	4.93	5.68	6.11	6.41	6.61	6.78	7.16
110°	4.88	5.68	6.13	6.51	6.87	7.19	7.81
120°	4.72	5.56	6.03	6.41	6.78	7.18	8.17
135°	4.24	5.14	5.78	6.17	6.52	6.88	7.80
150°	3.60	4.55	5.33	5.85	6.21	6.54	7.24