IMPOSIBLE — ORC Rating

GPH

627.5

OSN

610.7

LOA

13.15 m

Displacement

9808 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6644

Medium

0.8819

High

1.0074

Triple Offshore

Low

0.8493

Medium

1.0732

High

1.1819

Boat Specifications

Dimensions

Length overall: 13.15 m
Beam: 3.47 m
Draft: 2.34 m
Displacement: 9808 kg
Crew weight: 540 kg
Wetted surface: 31.82 m²

Sails

Mainsail: 38.33 m²
Genoa: 66.1 m²
Spinnaker: 138.49 m²
Asymmetric spinnaker: 142.35 m²

Design

Type: NORAY 43
Builder: NORAY
Year built: 1978
Stability index: 135.6

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.

6,41.8,4.762058,52,5.32,60,5.58,75,5.78,90,5.73,110,5.66,120,5.53,135,5.01,146,4.499193,150,4.3
8,40.2,5.511943,52,6.24,60,6.5,75,6.67,90,6.65,110,6.77,120,6.67,135,6.16,150,5.35,150.7,5.309211
10,40.6,6.150634,52,6.78,60,6.94,75,7.07,90,7.1,110,7.26,120,7.22,135,6.99,150,6.3,150.5,6.273297
12,39.4,6.392889,52,7.01,60,7.16,75,7.29,90,7.35,110,7.56,120,7.56,135,7.38,150,6.98,157.7,6.679567
14,38.4,6.494886,52,7.12,60,7.28,75,7.46,90,7.55,110,7.74,120,7.88,135,7.71,150,7.35,171.2,6.820286
16,37.8,6.555676,52,7.19,60,7.35,75,7.59,90,7.73,110,7.9,120,8.15,135,8.06,150,7.65,178.4,7.172797
20,37.5,6.592271,52,7.24,60,7.42,75,7.73,90,8.04,110,8.17,120,8.49,135,8.71,150,8.32,178.4,7.773031

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.32	5.58	5.78	5.73	5.66	5.53	5.01	4.3
8	6.24	6.5	6.67	6.65	6.77	6.67	6.16	5.35
10	6.78	6.94	7.07	7.1	7.26	7.22	6.99	6.3
12	7.01	7.16	7.29	7.35	7.56	7.56	7.38	6.98
14	7.12	7.28	7.46	7.55	7.74	7.88	7.71	7.35
16	7.19	7.35	7.59	7.73	7.9	8.15	8.06	7.65
20	7.24	7.42	7.73	8.04	8.17	8.49	8.71	8.32

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	3.55	146°	3.73
8	40.2°	4.21	150.7°	4.63
10	40.6°	4.67	150.5°	5.46
12	39.4°	4.94	157.7°	6.18
14	38.4°	5.09	171.2°	6.74
16	37.8°	5.18	178.4°	7.17
20	37.5°	5.23	178.4°	7.77

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