Impala — ORC Rating | RegattaPages

GPH

730.3

OSN

708.1

LOA

7.65 m

Displacement

1542 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5758

Medium

0.7688

High

0.8665

Triple Offshore

Low

0.7319

Medium

0.9206

High

1.0174

Boat Specifications

Dimensions

Length overall: 7.65 m
Beam: 2.76 m
Draft: 1.52 m
Displacement: 1542 kg
Crew weight: 450 kg
Wetted surface: 12.52 m²

Sails

Mainsail: 18.56 m²
Genoa: 16.47 m²
Spinnaker: 29.78 m²
Asymmetric spinnaker: 0 m²

Design

Type: Conrad 25R
Builder: Gdansk, Poland
Designer: Peterson
Year built: 1976
Stability index: 102.2

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.

6,41.8,4.305974,52,4.78,60,4.98,75,5.07,90,4.97,110,4.82,120,4.63,135,4.14,147.5,3.628208,150,3.53
8,40,4.973602,52,5.49,60,5.61,75,5.67,90,5.65,110,5.63,120,5.5,135,5.07,150,4.49,152.3,4.404821
10,37.5,5.306589,52,5.81,60,5.91,75,5.99,90,6.06,110,6.06,120,5.96,135,5.69,150,5.26,157.4,4.993446
12,35.8,5.437303,52,5.98,60,6.09,75,6.23,90,6.34,110,6.4,120,6.29,135,6.06,150,5.77,171.8,5.294126
14,35.7,5.50436,52,6.06,60,6.21,75,6.41,90,6.54,110,6.73,120,6.62,135,6.38,150,6.11,179,5.720871
16,35.7,5.553616,52,6.12,60,6.28,75,6.54,90,6.69,110,7.03,120,6.96,135,6.7,150,6.41,179,6.050922
20,36.3,5.583623,52,6.16,60,6.35,75,6.69,90,7.01,110,7.6,120,7.76,135,7.47,150,7.05,179,6.641011

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.78	4.98	5.07	4.97	4.82	4.63	4.14	3.53
8	5.49	5.61	5.67	5.65	5.63	5.5	5.07	4.49
10	5.81	5.91	5.99	6.06	6.06	5.96	5.69	5.26
12	5.98	6.09	6.23	6.34	6.4	6.29	6.06	5.77
14	6.06	6.21	6.41	6.54	6.73	6.62	6.38	6.11
16	6.12	6.28	6.54	6.69	7.03	6.96	6.7	6.41
20	6.16	6.35	6.69	7.01	7.6	7.76	7.47	7.05

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	3.21	147.5°	3.06
8	40°	3.81	152.3°	3.9
10	37.5°	4.21	157.4°	4.61
12	35.8°	4.41	171.8°	5.24
14	35.7°	4.47	179°	5.72
16	35.7°	4.51	179°	6.05
20	36.3°	4.5	179°	6.64

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