Expresso — ORC Rating

GPH

722.1

OSN

700.4

LOA

7.77 m

Displacement

1838 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5688

Medium

0.7705

High

0.8706

Triple Offshore

Low

0.7327

Medium

0.9358

High

1.0354

Boat Specifications

Dimensions

Length overall: 7.77 m
Beam: 2.52 m
Draft: 1.44 m
Displacement: 1838 kg
Crew weight: 385 kg
Wetted surface: 13.99 m²

Sails

Mainsail: 19.18 m²
Genoa: 14.81 m²
Spinnaker: 42.75 m²
Asymmetric spinnaker: 0 m²

Design

Type: EXPRESS
Builder: Albin Marin AB
Designer: Peter Norlin
Year built: 1978
Stability index: 112.1

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.

6,43,4.115656,52,4.59,60,4.83,75,4.97,90,5.02,110,5.05,120,4.88,135,4.36,146,3.799587,150,3.64
8,41.4,4.852615,52,5.41,60,5.6,75,5.72,90,5.86,110,5.92,120,5.81,135,5.32,150,4.65,151.4,4.590066
10,39.4,5.279957,52,5.82,60,5.97,75,6.09,90,6.24,110,6.36,120,6.29,135,6.03,150,5.51,153.8,5.338485
12,38.2,5.471734,52,6.03,60,6.17,75,6.32,90,6.46,110,6.7,120,6.66,135,6.42,150,6.09,163.7,5.699073
14,38.1,5.55319,52,6.13,60,6.3,75,6.51,90,6.6,110,7,120,7.01,135,6.79,150,6.45,177.2,5.987148
16,38.1,5.591313,52,6.18,60,6.36,75,6.66,90,6.81,110,7.26,120,7.38,135,7.17,150,6.8,179,6.340966
20,38.8,5.607323,52,6.21,60,6.42,75,6.79,90,7.14,110,7.6,120,8.11,135,8.23,150,7.56,179,6.991065

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.59	4.83	4.97	5.02	5.05	4.88	4.36	3.64
8	5.41	5.6	5.72	5.86	5.92	5.81	5.32	4.65
10	5.82	5.97	6.09	6.24	6.36	6.29	6.03	5.51
12	6.03	6.17	6.32	6.46	6.7	6.66	6.42	6.09
14	6.13	6.3	6.51	6.6	7	7.01	6.79	6.45
16	6.18	6.36	6.66	6.81	7.26	7.38	7.17	6.8
20	6.21	6.42	6.79	7.14	7.6	8.11	8.23	7.56

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.01	146°	3.15
8	41.4°	3.64	151.4°	4.03
10	39.4°	4.08	153.8°	4.79
12	38.2°	4.3	163.7°	5.47
14	38.1°	4.37	177.2°	5.98
16	38.1°	4.4	179°	6.34
20	38.8°	4.37	179°	6.99

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