Era — ORC Rating | RegattaPages

GPH

695.3

OSN

682.5

LOA

10.25 m

Displacement

7000 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6612

Medium

0.8706

High

1.0016

Triple Offshore

Low

0.8616

Medium

1.0875

High

1.2102

Boat Specifications

Dimensions

Length overall: 10.25 m
Beam: 3.29 m
Draft: 1.3 m
Displacement: 7000 kg
Crew weight: 555 kg
Wetted surface: 24.68 m²

Sails

Mainsail: 35.95 m²
Genoa: 25.01 m²
Spinnaker: 75.83 m²
Asymmetric spinnaker: 0 m²

Design

Type: Stadt 34
Builder: Mareus Marine
Designer: VD STADT
Year built: 1989

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.

6,45.8,4.403548,52,4.81,60,5.16,75,5.52,90,5.55,110,5.16,120,5.03,135,4.62,147.5,4.0432,150,3.94
8,45,5.048742,52,5.59,60,6.01,75,6.33,90,6.35,110,6.17,120,6.03,135,5.54,150,4.89,152.9,4.762906
10,45.9,5.661629,52,6.16,60,6.47,75,6.68,90,6.72,110,6.72,120,6.64,135,6.35,150,5.71,153.5,5.55348
12,45.4,5.953118,52,6.41,60,6.67,75,6.88,90,6.96,110,7.03,120,6.97,135,6.77,150,6.41,160.1,6.030067
14,43.8,5.999222,52,6.54,60,6.78,75,7.03,90,7.17,110,7.3,120,7.26,135,7.06,150,6.78,180,6.29
16,43.4,6.083339,52,6.61,60,6.84,75,7.14,90,7.4,110,7.58,120,7.56,135,7.34,150,7.05,180,6.69
20,43.6,6.158759,52,6.65,60,6.9,75,7.27,90,7.68,110,8.01,120,8.1,135,7.95,150,7.61,180,7.22

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.81	5.16	5.52	5.55	5.16	5.03	4.62	3.94
8	5.59	6.01	6.33	6.35	6.17	6.03	5.54	4.89
10	6.16	6.47	6.68	6.72	6.72	6.64	6.35	5.71
12	6.41	6.67	6.88	6.96	7.03	6.97	6.77	6.41
14	6.54	6.78	7.03	7.17	7.3	7.26	7.06	6.78
16	6.61	6.84	7.14	7.4	7.58	7.56	7.34	7.05
20	6.65	6.9	7.27	7.68	8.01	8.1	7.95	7.61

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.8°	3.07	147.5°	3.41
8	45°	3.57	152.9°	4.24
10	45.9°	3.94	153.5°	4.97
12	45.4°	4.18	160.1°	5.67
14	43.8°	4.33	180°	6.29
16	43.4°	4.42	180°	6.69
20	43.6°	4.46	180°	7.22

Loading polar chart…