YPSIPYLI — ORC Rating

GPH

769.2

OSN

745.1

LOA

9.34 m

Displacement

4414 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5037

Medium

0.6984

High

0.8427

Triple Offshore

Low

0.6576

Medium

0.8893

High

1.0315

Boat Specifications

Dimensions

Length overall: 9.34 m
Beam: 3.41 m
Draft: 1.61 m
Displacement: 4414 kg
Crew weight: 350 kg
Wetted surface: 21.51 m²

Sails

Mainsail: 19.62 m²
Genoa: 26.36 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 50.68 m²

Design

Type: ATLANTIC 31
Builder: ATLANTIC MARINE
Designer: JACOPIN & JACOPIN
Year built: 1993

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.

6,46.5,3.689959,52,4,60,4.31,75,4.54,90,4.53,110,4.59,120,4.42,135,3.97,145,3.589077,150,3.39
8,44.6,4.381862,52,4.83,60,5.15,75,5.41,90,5.53,110,5.61,120,5.43,135,4.97,145.8,4.521929,150,4.32
10,43.5,4.880239,52,5.45,60,5.8,75,6.08,90,6.29,110,6.37,120,6.25,135,5.82,145.5,5.338988,150,5.07
12,43.5,5.39032,52,5.97,60,6.25,75,6.46,90,6.69,110,6.76,120,6.69,135,6.43,145.5,6.018496,150,5.73
14,42.9,5.760755,52,6.3,60,6.51,75,6.69,90,6.94,110,7.05,120,6.99,135,6.78,150,6.18,172,5.422774
16,42,5.907328,52,6.47,60,6.66,75,6.87,90,7.1,110,7.36,120,7.3,135,7.06,150,6.53,173,5.984608
20,42,5.947697,52,6.54,60,6.77,75,7.13,90,7.33,110,7.92,120,7.94,135,7.68,150,7.01,176.5,6.672445

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4	4.31	4.54	4.53	4.59	4.42	3.97	3.39
8	4.83	5.15	5.41	5.53	5.61	5.43	4.97	4.32
10	5.45	5.8	6.08	6.29	6.37	6.25	5.82	5.07
12	5.97	6.25	6.46	6.69	6.76	6.69	6.43	5.73
14	6.3	6.51	6.69	6.94	7.05	6.99	6.78	6.18
16	6.47	6.66	6.87	7.1	7.36	7.3	7.06	6.53
20	6.54	6.77	7.13	7.33	7.92	7.94	7.68	7.01

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	46.5°	2.54	145°	2.94
8	44.6°	3.12	145.8°	3.74
10	43.5°	3.54	145.5°	4.4
12	43.5°	3.91	145.5°	4.96
14	42.9°	4.22	172°	5.37
16	42°	4.39	173°	5.94
20	42°	4.42	176.5°	6.66

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