Nord Burgas — ORC Rating

GPH

748.3

OSN

724.5

LOA

7.65 m

Displacement

1910 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5547

Medium

0.7488

High

0.8537

Triple Offshore

Low

0.707

Medium

0.9024

High

1.0007

Boat Specifications

Dimensions

Length overall: 7.65 m
Beam: 2.76 m
Draft: 1.56 m
Displacement: 1910 kg
Crew weight: 410 kg
Wetted surface: 13.25 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
Stability index: 101.1

Velocity Prediction

Polar CSV

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

6,41.8,4.077931,52,4.55,60,4.74,75,4.84,90,4.75,110,4.7,120,4.53,135,4.04,148.4,3.510515,150,3.45
8,40.2,4.752578,52,5.29,60,5.44,75,5.52,90,5.55,110,5.54,120,5.41,135,4.95,150,4.38,153.2,4.268497
10,38.7,5.176631,52,5.68,60,5.79,75,5.89,90,5.99,110,6,120,5.91,135,5.64,150,5.16,156.8,4.906786
12,37,5.359141,52,5.88,60,6,75,6.12,90,6.25,110,6.32,120,6.24,135,6.03,150,5.72,168.2,5.271398
14,36.7,5.450403,52,6,60,6.13,75,6.29,90,6.44,110,6.61,120,6.54,135,6.33,150,6.07,177.2,5.666765
16,36.4,5.491408,52,6.06,60,6.21,75,6.43,90,6.56,110,6.86,120,6.84,135,6.62,150,6.35,179,6.000914
20,36.9,5.552189,52,6.11,60,6.29,75,6.59,90,6.84,110,7.32,120,7.45,135,7.25,150,6.91,179,6.540996

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.55	4.74	4.84	4.75	4.7	4.53	4.04	3.45
8	5.29	5.44	5.52	5.55	5.54	5.41	4.95	4.38
10	5.68	5.79	5.89	5.99	6	5.91	5.64	5.16
12	5.88	6	6.12	6.25	6.32	6.24	6.03	5.72
14	6	6.13	6.29	6.44	6.61	6.54	6.33	6.07
16	6.06	6.21	6.43	6.56	6.86	6.84	6.62	6.35
20	6.11	6.29	6.59	6.84	7.32	7.45	7.25	6.91

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	3.04	148.4°	2.99
8	40.2°	3.63	153.2°	3.81
10	38.7°	4.04	156.8°	4.51
12	37°	4.28	168.2°	5.16
14	36.7°	4.37	177.2°	5.66
16	36.4°	4.42	179°	6
20	36.9°	4.44	179°	6.54

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