Hemma — ORC Rating | RegattaPages

GPH

672.1

OSN

650.4

LOA

10.406 m

Displacement

6642 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6107

Medium

0.8286

High

0.9554

Triple Offshore

Low

0.781

Medium

1.0081

High

1.1202

Boat Specifications

Dimensions

Length overall: 10.406 m
Beam: 3.49 m
Draft: 2.02 m
Displacement: 6642 kg
Crew weight: 574 kg
Wetted surface: 26.76 m²

Sails

Mainsail: 28.28 m²
Genoa: 36.59 m²
Spinnaker: 85.94 m²
Asymmetric spinnaker: 0 m²

Design

Type: Sweden 340
Builder: Sweden Yachts
Designer: Peter Morlin
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.

6,43.3,4.438199,52,4.91,60,5.16,75,5.3,90,5.2,110,5.24,120,5.09,135,4.62,145.6,4.120645,150,3.93
8,41,5.167551,52,5.76,60,5.99,75,6.15,90,6.12,110,6.27,120,6.13,135,5.67,150,4.99,150.1,4.983292
10,39.7,5.692751,52,6.31,60,6.48,75,6.62,90,6.68,110,6.82,120,6.76,135,6.45,150,5.86,153.2,5.702533
12,38.5,5.992782,52,6.61,60,6.76,75,6.89,90,6.96,110,7.14,120,7.11,135,6.91,150,6.51,158.8,6.167385
14,37.9,6.159039,52,6.77,60,6.92,75,7.07,90,7.11,110,7.38,120,7.39,135,7.22,150,6.92,172.2,6.37902
16,37.5,6.226734,52,6.85,60,7.01,75,7.21,90,7.28,110,7.59,120,7.64,135,7.5,150,7.21,178.1,6.763719
20,37.5,6.277153,52,6.91,60,7.09,75,7.37,90,7.56,110,7.86,120,8.14,135,8.09,150,7.75,179,7.331117
24,38.1,6.264812,52,6.91,60,7.11,75,7.44,90,7.75,110,8.06,120,8.48,135,8.8,150,8.36,179,7.841194

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.91	5.16	5.3	5.2	5.24	5.09	4.62	3.93
8	5.76	5.99	6.15	6.12	6.27	6.13	5.67	4.99
10	6.31	6.48	6.62	6.68	6.82	6.76	6.45	5.86
12	6.61	6.76	6.89	6.96	7.14	7.11	6.91	6.51
14	6.77	6.92	7.07	7.11	7.38	7.39	7.22	6.92
16	6.85	7.01	7.21	7.28	7.59	7.64	7.5	7.21
20	6.91	7.09	7.37	7.56	7.86	8.14	8.09	7.75
24	6.91	7.11	7.44	7.75	8.06	8.48	8.8	8.36

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.3°	3.23	145.6°	3.4
8	41°	3.9	150.1°	4.32
10	39.7°	4.38	153.2°	5.09
12	38.5°	4.69	158.8°	5.75
14	37.9°	4.86	172.2°	6.32
16	37.5°	4.94	178.1°	6.76
20	37.5°	4.98	179°	7.33
24	38.1°	4.93	179°	7.84

Loading polar chart…