ATAIR — ORC Rating | RegattaPages

GPH

732

OSN

710.1

LOA

9.43 m

Displacement

3613 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5357

Medium

0.7446

High

0.8631

Triple Offshore

Low

0.7007

Medium

0.9333

High

1.0517

Boat Specifications

Dimensions

Length overall: 9.43 m
Beam: 3.12 m
Draft: 1.41 m
Displacement: 3613 kg
Crew weight: 500 kg
Wetted surface: 19.27 m²

Sails

Mainsail: 27.94 m²
Genoa: 25.36 m²
Spinnaker: 51.94 m²
Asymmetric spinnaker: 0 m²

Design

Type: DUETTA 94
Builder: DEHLER
Designer: V.D. STADT
Year built: 1987

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.

6,46.1,3.908268,52,4.29,60,4.64,75,4.91,90,4.88,110,4.87,120,4.7,135,4.22,148,3.667245,150,3.6
8,44.6,4.634662,52,5.15,60,5.53,75,5.84,90,5.87,110,5.95,120,5.78,135,5.23,150,4.59,152,4.507629
10,45,5.303301,52,5.82,60,6.14,75,6.36,90,6.49,110,6.56,120,6.47,135,6.11,150,5.45,154,5.273733
12,44.1,5.723227,52,6.23,60,6.45,75,6.64,90,6.81,110,6.92,120,6.84,135,6.6,150,6.19,160,5.799769
14,43.9,5.898263,52,6.39,60,6.62,75,6.84,90,7.03,110,7.27,120,7.19,135,6.94,150,6.62,180,6.1
16,43.9,5.953776,52,6.44,60,6.68,75,7.01,90,7.18,110,7.61,120,7.55,135,7.29,150,6.94,180,6.54
20,45.6,5.988594,52,6.42,60,6.7,75,7.15,90,7.57,110,8.05,120,8.23,135,8,150,7.61,180,7.17

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.29	4.64	4.91	4.88	4.87	4.7	4.22	3.6
8	5.15	5.53	5.84	5.87	5.95	5.78	5.23	4.59
10	5.82	6.14	6.36	6.49	6.56	6.47	6.11	5.45
12	6.23	6.45	6.64	6.81	6.92	6.84	6.6	6.19
14	6.39	6.62	6.84	7.03	7.27	7.19	6.94	6.62
16	6.44	6.68	7.01	7.18	7.61	7.55	7.29	6.94
20	6.42	6.7	7.15	7.57	8.05	8.23	8	7.61

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	46.1°	2.71	148°	3.11
8	44.6°	3.3	152°	3.98
10	45°	3.75	154°	4.74
12	44.1°	4.11	160°	5.45
14	43.9°	4.25	180°	6.1
16	43.9°	4.29	180°	6.54
20	45.6°	4.19	180°	7.17

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