SOFIA — ORC Rating | RegattaPages

GPH

775.7

OSN

750.3

LOA

8.8 m

Displacement

3123 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5746

Medium

0.7961

High

0.9357

Triple Offshore

Low

0.7434

Medium

0.99

High

1.1232

Boat Specifications

Dimensions

Length overall: 8.8 m
Beam: 2.7 m
Draft: 1.56 m
Displacement: 3123 kg
Crew weight: 360 kg
Wetted surface: 17.62 m²

Sails

Mainsail: 17.45 m²
Genoa: 19.06 m²
Spinnaker: 58.41 m²
Asymmetric spinnaker: 0 m²

Design

Type: OHLSON 29
Builder: ARTEKNO
Designer: OHLSON EINAR
Year built: 1979

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.

6,44.8,3.551443,52,3.91,60,4.16,75,4.33,90,4.53,110,4.66,120,4.53,135,4.12,147.8,3.628013,150,3.55
8,43,4.197695,52,4.68,60,4.95,75,5.17,90,5.52,110,5.69,120,5.57,135,5.1,150,4.48,151.4,4.41922
10,42.4,4.71254,52,5.29,60,5.57,75,5.79,90,6.1,110,6.23,120,6.18,135,5.91,150,5.32,151.4,5.250671
12,42.6,5.203118,52,5.75,60,5.96,75,6.12,90,6.32,110,6.56,120,6.53,135,6.33,150,5.98,159.6,5.63331
14,42.1,5.471876,52,5.98,60,6.16,75,6.33,90,6.44,110,6.84,120,6.85,135,6.65,150,6.34,180,5.86
16,41.8,5.553499,52,6.08,60,6.28,75,6.49,90,6.58,110,7.02,120,7.17,135,6.99,150,6.64,180,6.25
20,42.7,5.592487,52,6.1,60,6.33,75,6.7,90,6.94,110,7.28,120,7.55,135,7.61,150,7.26,180,6.83

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.91	4.16	4.33	4.53	4.66	4.53	4.12	3.55
8	4.68	4.95	5.17	5.52	5.69	5.57	5.1	4.48
10	5.29	5.57	5.79	6.1	6.23	6.18	5.91	5.32
12	5.75	5.96	6.12	6.32	6.56	6.53	6.33	5.98
14	5.98	6.16	6.33	6.44	6.84	6.85	6.65	6.34
16	6.08	6.28	6.49	6.58	7.02	7.17	6.99	6.64
20	6.1	6.33	6.7	6.94	7.28	7.55	7.61	7.26

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.8°	2.52	147.8°	3.07
8	43°	3.07	151.4°	3.88
10	42.4°	3.48	151.4°	4.61
12	42.6°	3.83	159.6°	5.28
14	42.1°	4.06	180°	5.86
16	41.8°	4.14	180°	6.25
20	42.7°	4.11	180°	6.83

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