Nord Burgas: ORC Rating

GPH

741.6

OSN

720.2

LOA

7.65 m

Displacement

1911 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.557

Medium

0.752

High

0.8539

Triple Offshore

Low

0.7137

Medium

0.9095

High

1.0115

Boat Specifications

Dimensions

Length overall: 7.65 m
Beam: 2.76 m
Draft: 1.56 m
Displacement: 1911 kg
Crew weight: 410 kg
Wetted surface: 13.12 m²

Sails

Mainsail: 18.77 m²
Genoa: 16.88 m²
Spinnaker: 34.14 m²
Asymmetric spinnaker: 0 m²

Design

Type: Conrad 25RT
Builder: Gdansk, Poland
Designer: Peterson
Year built: 1976

Performance data

Polar CSV

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

6,41.2,3.987162,52,4.52,60,4.75,75,4.92,90,4.86,110,4.79,120,4.63,135,4.16,149,3.604897,150,3.56
8,41.2,4.718141,52,5.31,60,5.51,75,5.62,90,5.66,110,5.66,120,5.53,135,5.06,150,4.46,154,4.30577
10,40.1,5.216222,52,5.7,60,5.83,75,5.94,90,6.05,110,6.07,120,5.98,135,5.75,150,5.25,154.5,5.074313
12,37.9,5.411337,52,5.91,60,6.03,75,6.16,90,6.34,110,6.4,120,6.31,135,6.09,150,5.8,174,5.288974
14,37.5,5.508264,52,6.03,60,6.18,75,6.37,90,6.58,110,6.74,120,6.65,135,6.4,150,6.12,180,5.76
16,37.1,5.516661,52,6.08,60,6.27,75,6.55,90,6.72,110,7.06,120,7,135,6.74,150,6.41,180,6.07
20,38.4,5.53788,52,6.09,60,6.32,75,6.72,90,7.05,110,7.49,120,7.62,135,7.41,150,7.04,180,6.66

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.52	4.75	4.92	4.86	4.79	4.63	4.16	3.56
8	5.31	5.51	5.62	5.66	5.66	5.53	5.06	4.46
10	5.7	5.83	5.94	6.05	6.07	5.98	5.75	5.25
12	5.91	6.03	6.16	6.34	6.4	6.31	6.09	5.8
14	6.03	6.18	6.37	6.58	6.74	6.65	6.4	6.12
16	6.08	6.27	6.55	6.72	7.06	7	6.74	6.41
20	6.09	6.32	6.72	7.05	7.49	7.62	7.41	7.04

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.2°	3	149°	3.09
8	41.2°	3.55	154°	3.87
10	40.1°	3.99	154.5°	4.58
12	37.9°	4.27	174°	5.26
14	37.5°	4.37	180°	5.76
16	37.1°	4.4	180°	6.07
20	38.4°	4.34	180°	6.66

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°	4.52	5.31	5.70	5.91	6.03	6.08	6.09
60°	4.75	5.51	5.83	6.03	6.18	6.27	6.32
75°	4.92	5.62	5.94	6.16	6.37	6.55	6.72
90°	4.86	5.66	6.05	6.34	6.58	6.72	7.05
110°	4.79	5.66	6.07	6.40	6.74	7.06	7.49
120°	4.63	5.53	5.98	6.31	6.65	7.00	7.62
135°	4.16	5.06	5.75	6.09	6.40	6.74	7.41
150°	3.56	4.46	5.25	5.80	6.12	6.41	7.04