Nightnurse — ORC Rating

GPH

532.7

OSN

519.2

LOA

12.41 m

Displacement

5153 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8777

Medium

1.1521

High

1.313

Triple Offshore

Low

1.1307

Medium

1.4154

High

1.5937

Boat Specifications

Dimensions

Length overall: 12.41 m
Beam: 3.96 m
Draft: 2.6 m
Displacement: 5153 kg
Crew weight: 784 kg
Wetted surface: 30.09 m²

Sails

Mainsail: 61.73 m²
Genoa: 41.16 m²
Spinnaker: 135 m²
Asymmetric spinnaker: 141.75 m²

Design

Type: Farr 40
Builder: Carroll
Designer: Farr
Year built: 1996

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.

6,42.6,5.651428,52,6.33,60,6.71,75,7.02,90,6.97,110,6.85,120,6.63,135,5.94,142.5,5.432636,150,4.97
8,40.9,6.707649,52,7.45,60,7.68,75,7.84,90,7.84,110,7.94,120,7.84,135,7.34,143.4,6.738767,150,6.25
10,38.4,7.05633,52,7.84,60,8.05,75,8.29,90,8.32,110,8.56,120,8.51,135,8.09,150,7.33,150.4,7.30309
12,37.6,7.232204,52,7.99,60,8.23,75,8.66,90,8.84,110,9,120,9.21,135,8.75,150,8.03,157.2,7.669251
14,37.1,7.297038,52,8.07,60,8.35,75,8.88,90,9.3,110,9.38,120,9.77,135,9.53,150,8.63,171.4,7.747106
16,36.2,7.385741,52,8.16,60,8.43,75,9.03,90,9.64,110,9.78,120,10.22,135,10.46,150,9.33,180,8.22
20,36.7,7.48339,52,8.31,60,8.69,75,9.27,90,9.99,110,10.82,120,11.33,135,12.53,147.5,11.406329,150,11.11

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.33	6.71	7.02	6.97	6.85	6.63	5.94	4.97
8	7.45	7.68	7.84	7.84	7.94	7.84	7.34	6.25
10	7.84	8.05	8.29	8.32	8.56	8.51	8.09	7.33
12	7.99	8.23	8.66	8.84	9	9.21	8.75	8.03
14	8.07	8.35	8.88	9.3	9.38	9.77	9.53	8.63
16	8.16	8.43	9.03	9.64	9.78	10.22	10.46	9.33
20	8.31	8.69	9.27	9.99	10.82	11.33	12.53	11.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	4.16	142.5°	4.31
8	40.9°	5.07	143.4°	5.41
10	38.4°	5.53	150.4°	6.35
12	37.6°	5.73	157.2°	7.07
14	37.1°	5.82	171.4°	7.66
16	36.2°	5.96	180°	8.22
20	36.7°	6	147.5°	9.62

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