ALEXANDRA: ORC Rating

GPH

668.9

OSN

642.9

LOA

12.25 m

Displacement

7800 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5798

Medium

0.8285

High

0.9858

Triple Offshore

Low

0.7525

Medium

1.0287

High

1.1744

Boat Specifications

Dimensions

Length overall: 12.25 m
Beam: 3.91 m
Draft: 1.98 m
Displacement: 7800 kg
Crew weight: 800 kg
Wetted surface: 32.63 m²

Sails

Mainsail: 32.97 m²
Genoa: 34.17 m²
Spinnaker: 105.51 m²
Asymmetric spinnaker: 0 m²

Design

Type: SUN LEGENDE 41
Builder: JEANNEAU
Designer: D. PETERSON
Year built: 1985
Stability index: 113.4

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,45.4,4.144396,52,4.53,60,4.81,75,4.97,90,5.1,110,5.23,120,5.07,135,4.56,145.1,4.048031,150,3.84
8,43.6,5.054049,52,5.58,60,5.86,75,6.03,90,6.25,110,6.45,120,6.29,135,5.75,148.7,5.044128,150,4.97
10,41.7,5.665395,52,6.31,60,6.57,75,6.77,90,7,110,7.2,120,7.12,135,6.71,150,5.97,151.1,5.905436
12,40.6,6.124293,52,6.79,60,7.01,75,7.19,90,7.36,110,7.6,120,7.58,135,7.31,150,6.78,155,6.531997
14,39.9,6.413221,52,7.07,60,7.26,75,7.45,90,7.53,110,7.88,120,7.9,135,7.7,150,7.32,164,6.813961
16,39.4,6.509359,52,7.21,60,7.41,75,7.63,90,7.7,110,8.11,120,8.19,135,8.03,150,7.68,175.4,7.112912
20,39.4,6.587005,52,7.29,60,7.52,75,7.84,90,8.03,110,8.43,120,8.74,135,8.71,150,8.31,179,7.801188

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.53	4.81	4.97	5.1	5.23	5.07	4.56	3.84
8	5.58	5.86	6.03	6.25	6.45	6.29	5.75	4.97
10	6.31	6.57	6.77	7	7.2	7.12	6.71	5.97
12	6.79	7.01	7.19	7.36	7.6	7.58	7.31	6.78
14	7.07	7.26	7.45	7.53	7.88	7.9	7.7	7.32
16	7.21	7.41	7.63	7.7	8.11	8.19	8.03	7.68
20	7.29	7.52	7.84	8.03	8.43	8.74	8.71	8.31

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.4°	2.91	145.1°	3.32
8	43.6°	3.66	148.7°	4.31
10	41.7°	4.23	151.1°	5.17
12	40.6°	4.65	155°	5.92
14	39.9°	4.92	164°	6.55
16	39.4°	5.03	175.4°	7.09
20	39.4°	5.09	179°	7.8

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	4.53	5.58	6.31	6.79	7.07	7.21	7.29
60°	4.81	5.86	6.57	7.01	7.26	7.41	7.52
75°	4.97	6.03	6.77	7.19	7.45	7.63	7.84
90°	5.10	6.25	7.00	7.36	7.53	7.70	8.03
110°	5.23	6.45	7.20	7.60	7.88	8.11	8.43
120°	5.07	6.29	7.12	7.58	7.90	8.19	8.74
135°	4.56	5.75	6.71	7.31	7.70	8.03	8.71
150°	3.84	4.97	5.97	6.78	7.32	7.68	8.31