Semiramis — ORC Rating

GPH

692.8

OSN

670.8

LOA

11.1 m

Displacement

6300 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6324

Medium

0.8812

High

1.0416

Triple Offshore

Low

0.825

Medium

1.1121

High

1.2688

Boat Specifications

Dimensions

Length overall: 11.1 m
Beam: 3.64 m
Draft: 1.93 m
Displacement: 6300 kg
Crew weight: 616 kg
Wetted surface: 27.46 m²

Sails

Mainsail: 30.23 m²
Genoa: 36.62 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 87.84 m²

Design

Type: Apollo 12
Builder: Dromor
Designer: Judel / Vrolijk
Year built: 1990

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.

6,45,4.058793,52,4.48,60,4.79,75,5.02,90,5.05,110,5.12,120,4.92,135,4.4,145,3.930894,150,3.72
8,43.5,4.866453,52,5.4,60,5.73,75,5.99,90,6.14,110,6.27,120,6.06,135,5.49,146.2,4.945941,150,4.74
10,42.4,5.470879,52,6.13,60,6.45,75,6.69,90,6.9,110,7,120,6.89,135,6.45,146,5.862219,150,5.61
12,42,6.001522,52,6.64,60,6.87,75,7.05,90,7.26,110,7.38,120,7.31,135,7.04,146.5,6.583635,150,6.34
14,41.2,6.299716,52,6.91,60,7.1,75,7.28,90,7.43,110,7.71,120,7.65,135,7.4,149,6.871471,150,6.8
16,40.5,6.378172,52,7.03,60,7.24,75,7.46,90,7.55,110,8.02,120,8.01,135,7.73,150,7.13,175,6.434485
20,40.5,6.404474,52,7.08,60,7.32,75,7.71,90,7.97,110,8.41,120,8.68,135,8.44,150,7.64,178,7.194383

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.48	4.79	5.02	5.05	5.12	4.92	4.4	3.72
8	5.4	5.73	5.99	6.14	6.27	6.06	5.49	4.74
10	6.13	6.45	6.69	6.9	7	6.89	6.45	5.61
12	6.64	6.87	7.05	7.26	7.38	7.31	7.04	6.34
14	6.91	7.1	7.28	7.43	7.71	7.65	7.4	6.8
16	7.03	7.24	7.46	7.55	8.02	8.01	7.73	7.13
20	7.08	7.32	7.71	7.97	8.41	8.68	8.44	7.64

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45°	2.87	145°	3.22
8	43.5°	3.53	146.2°	4.11
10	42.4°	4.04	146°	4.86
12	42°	4.46	146.5°	5.49
14	41.2°	4.74	149°	5.89
16	40.5°	4.85	175°	6.41
20	40.5°	4.87	178°	7.19

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