Castor — ORC Rating | RegattaPages

GPH

745.2

OSN

722.3

LOA

7.65 m

Displacement

1608 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5637

Medium

0.7502

High

0.8431

Triple Offshore

Low

0.7149

Medium

0.9039

High

0.9958

Boat Specifications

Dimensions

Length overall: 7.65 m
Beam: 2.76 m
Draft: 1.53 m
Displacement: 1608 kg
Crew weight: 331 kg
Wetted surface: 12.37 m²

Sails

Mainsail: 14.53 m²
Genoa: 20.07 m²
Spinnaker: 40.18 m²
Asymmetric spinnaker: 0 m²

Design

Type: Conrad 25RT
Builder: Gdansk /PL/
Designer: Doug Peterson
Year built: 1976
Stability index: 104.4

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.

6,41.4,4.079396,52,4.57,60,4.76,75,4.85,90,4.75,110,4.72,120,4.58,135,4.16,147.8,3.639831,150,3.56
8,40.6,4.79407,52,5.29,60,5.44,75,5.52,90,5.49,110,5.57,120,5.47,135,5.07,150,4.5,152,4.417023
10,38.4,5.155077,52,5.66,60,5.77,75,5.87,90,5.93,110,6.03,120,5.97,135,5.73,150,5.27,155,5.075538
12,37.5,5.331798,52,5.85,60,5.97,75,6.1,90,6.17,110,6.37,120,6.33,135,6.12,150,5.8,165.8,5.374207
14,37.3,5.393014,52,5.94,60,6.09,75,6.28,90,6.36,110,6.64,120,6.66,135,6.45,150,6.15,177.2,5.696801
16,37.5,5.432636,52,5.98,60,6.15,75,6.4,90,6.55,110,6.87,120,6.96,135,6.79,150,6.46,179,6.04092
20,38.2,5.446284,52,6,60,6.2,75,6.53,90,6.83,110,7.22,120,7.58,135,7.56,150,7.1,179,6.63101

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.57	4.76	4.85	4.75	4.72	4.58	4.16	3.56
8	5.29	5.44	5.52	5.49	5.57	5.47	5.07	4.5
10	5.66	5.77	5.87	5.93	6.03	5.97	5.73	5.27
12	5.85	5.97	6.1	6.17	6.37	6.33	6.12	5.8
14	5.94	6.09	6.28	6.36	6.64	6.66	6.45	6.15
16	5.98	6.15	6.4	6.55	6.87	6.96	6.79	6.46
20	6	6.2	6.53	6.83	7.22	7.58	7.56	7.1

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.4°	3.06	147.8°	3.08
8	40.6°	3.64	152°	3.9
10	38.4°	4.04	155°	4.6
12	37.5°	4.23	165.8°	5.21
14	37.3°	4.29	177.2°	5.69
16	37.5°	4.31	179°	6.04
20	38.2°	4.28	179°	6.63

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