LETTY — ORC Rating | RegattaPages

GPH

681.4

OSN

663.3

LOA

9.904 m

Displacement

3350 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6787

Medium

0.9161

High

1.0408

Triple Offshore

Low

0.8743

Medium

1.1159

High

1.2311

Boat Specifications

Dimensions

Length overall: 9.904 m
Beam: 2.44 m
Draft: 1.76 m
Displacement: 3350 kg
Crew weight: 523 kg
Wetted surface: 17.86 m²

Sails

Mainsail: 25.1 m²
Genoa: 17.88 m²
Spinnaker: 70.14 m²
Asymmetric spinnaker: 61.23 m²

Design

Type: APHRODITE 101
Builder: BIANCA YACHTS
Designer: ELVSTROM/KJAERULFF
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.

6,41.3,4.166311,52,4.68,60,4.9,75,5.08,90,5.39,110,5.42,120,5.26,135,4.77,145.6,4.193362,150,3.99
8,39.9,4.927231,52,5.58,60,5.84,75,6.03,90,6.32,110,6.4,120,6.3,135,5.82,147.9,5.09962,150,4.98
10,39.8,5.544828,52,6.17,60,6.34,75,6.46,90,6.67,110,6.79,120,6.75,135,6.53,150,5.94,150.1,5.929195
12,39.2,5.793963,52,6.38,60,6.54,75,6.69,90,6.8,110,7.09,120,7.09,135,6.88,150,6.55,160.7,6.198341
14,38.8,5.876783,52,6.47,60,6.64,75,6.84,90,6.94,110,7.33,120,7.43,135,7.23,150,6.88,180,6.41
16,38.7,5.906997,52,6.51,60,6.69,75,6.96,90,7.13,110,7.52,120,7.77,135,7.65,150,7.2,180,6.76
20,38,6.015146,52,6.6,60,6.76,75,7.05,90,7.43,110,7.8,120,8.2,135,8.5,150,8,180,7.4

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.68	4.9	5.08	5.39	5.42	5.26	4.77	3.99
8	5.58	5.84	6.03	6.32	6.4	6.3	5.82	4.98
10	6.17	6.34	6.46	6.67	6.79	6.75	6.53	5.94
12	6.38	6.54	6.69	6.8	7.09	7.09	6.88	6.55
14	6.47	6.64	6.84	6.94	7.33	7.43	7.23	6.88
16	6.51	6.69	6.96	7.13	7.52	7.77	7.65	7.2
20	6.6	6.76	7.05	7.43	7.8	8.2	8.5	8

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.3°	3.13	145.6°	3.46
8	39.9°	3.78	147.9°	4.32
10	39.8°	4.26	150.1°	5.14
12	39.2°	4.49	160.7°	5.85
14	38.8°	4.58	180°	6.41
16	38.7°	4.61	180°	6.76
20	38°	4.74	180°	7.4

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