SCHRAT II — ORC Rating

GPH

651.5

OSN

635.2

LOA

11.16 m

Displacement

4155 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6377

Medium

0.8404

High

0.9436

Triple Offshore

Low

0.8213

Medium

1.0336

High

1.1299

Boat Specifications

Dimensions

Length overall: 11.16 m
Beam: 2.73 m
Draft: 1.8 m
Displacement: 4155 kg
Crew weight: 360 kg
Wetted surface: 21.67 m²

Sails

Mainsail: 29.02 m²
Genoa: 30.82 m²
Spinnaker: 82.47 m²
Asymmetric spinnaker: 0 m²

Design

Type: LUFFE 37
Builder: LUFFE YACHTS
Designer: JOERGENSEN
Year built: 1980
Stability index: 122.7

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.

6,42.4,4.71254,52,5.26,60,5.5,75,5.67,90,5.54,110,5.54,120,5.39,135,4.83,144.2,4.253673,150,3.98
8,40.6,5.452596,52,6.1,60,6.33,75,6.49,90,6.44,110,6.58,120,6.49,135,5.96,149.2,5.134116,150,5.1
10,40,5.796008,52,6.49,60,6.72,75,6.9,90,6.92,110,7.1,120,7.09,135,6.81,149.6,6.121642,150,6.1
12,39.6,5.94409,52,6.64,60,6.87,75,7.12,90,7.22,110,7.39,120,7.48,135,7.29,150,6.85,158.2,6.515985
14,39.6,6.034938,52,6.73,60,6.96,75,7.25,90,7.43,110,7.59,120,7.82,135,7.71,150,7.3,171.2,6.698856
16,39.6,6.073874,52,6.77,60,7.01,75,7.33,90,7.6,110,7.76,120,8.05,135,8.12,150,7.71,177.2,7.098475
20,40.8,6.116288,52,6.78,60,7.04,75,7.41,90,7.79,110,8.06,120,8.43,135,9.02,150,8.58,177.2,7.869395

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.26	5.5	5.67	5.54	5.54	5.39	4.83	3.98
8	6.1	6.33	6.49	6.44	6.58	6.49	5.96	5.1
10	6.49	6.72	6.9	6.92	7.1	7.09	6.81	6.1
12	6.64	6.87	7.12	7.22	7.39	7.48	7.29	6.85
14	6.73	6.96	7.25	7.43	7.59	7.82	7.71	7.3
16	6.77	7.01	7.33	7.6	7.76	8.05	8.12	7.71
20	6.78	7.04	7.41	7.79	8.06	8.43	9.02	8.58

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.48	144.2°	3.45
8	40.6°	4.14	149.2°	4.41
10	40°	4.44	149.6°	5.28
12	39.6°	4.58	158.2°	6.05
14	39.6°	4.65	171.2°	6.62
16	39.6°	4.68	177.2°	7.09
20	40.8°	4.63	177.2°	7.86

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