ALDAN: ORC Rating

GPH

595.5

OSN

578.5

LOA

11.924 m

Displacement

7440 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6899

Medium

0.9263

High

1.0607

Triple Offshore

Low

0.887

Medium

1.1349

High

1.2595

Boat Specifications

Dimensions

Length overall: 11.924 m
Beam: 3.77 m
Draft: 2.43 m
Displacement: 7440 kg
Crew weight: 700 kg
Wetted surface: 32.02 m²

Sails

Mainsail: 46.75 m²
Genoa: 50.04 m²
Spinnaker: 101.23 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 40.7
Builder: BENETAU
Designer: B.FARR
Year built: 1997

Performance data

Polar CSV

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

6,42.3,5.205298,52,5.8,60,6.07,75,6.25,90,6.12,110,5.77,120,5.59,135,5.01,143.3,4.539923,150,4.2
8,40.3,6.070791,52,6.76,60,6.98,75,7.11,90,7.06,110,6.96,120,6.8,135,6.22,148,5.471388,150,5.36
10,38.8,6.556847,52,7.27,60,7.45,75,7.57,90,7.57,110,7.62,120,7.53,135,7.11,150,6.36,151.6,6.275233
12,37.8,6.732856,52,7.49,60,7.68,75,7.85,90,7.9,110,8.04,120,7.99,135,7.68,150,7.15,156.3,6.8475
14,37.4,6.835222,52,7.59,60,7.78,75,8.04,90,8.17,110,8.38,120,8.38,135,8.09,150,7.67,165.1,7.140077
16,37.1,6.883288,52,7.65,60,7.85,75,8.15,90,8.39,110,8.62,120,8.75,135,8.5,150,8.06,176.3,7.45554
20,37.5,6.995622,52,7.72,60,7.94,75,8.32,90,8.69,110,8.97,120,9.34,135,9.35,150,8.83,178.6,8.212452
24,38.5,7.015005,52,7.73,60,7.96,75,8.42,90,8.9,110,9.19,120,9.76,135,10.44,150,9.75,178.1,8.944918

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.8	6.07	6.25	6.12	5.77	5.59	5.01	4.2
8	6.76	6.98	7.11	7.06	6.96	6.8	6.22	5.36
10	7.27	7.45	7.57	7.57	7.62	7.53	7.11	6.36
12	7.49	7.68	7.85	7.9	8.04	7.99	7.68	7.15
14	7.59	7.78	8.04	8.17	8.38	8.38	8.09	7.67
16	7.65	7.85	8.15	8.39	8.62	8.75	8.5	8.06
20	7.72	7.94	8.32	8.69	8.97	9.34	9.35	8.83
24	7.73	7.96	8.42	8.9	9.19	9.76	10.44	9.75

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.3°	3.85	143.3°	3.64
8	40.3°	4.63	148°	4.64
10	38.8°	5.11	151.6°	5.52
12	37.8°	5.32	156.3°	6.27
14	37.4°	5.43	165.1°	6.9
16	37.1°	5.49	176.3°	7.44
20	37.5°	5.55	178.6°	8.21
24	38.5°	5.49	178.1°	8.94

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 kt24 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)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	5.80	6.76	7.27	7.49	7.59	7.65	7.72	7.73
60°	6.07	6.98	7.45	7.68	7.78	7.85	7.94	7.96
75°	6.25	7.11	7.57	7.85	8.04	8.15	8.32	8.42
90°	6.12	7.06	7.57	7.90	8.17	8.39	8.69	8.90
110°	5.77	6.96	7.62	8.04	8.38	8.62	8.97	9.19
120°	5.59	6.80	7.53	7.99	8.38	8.75	9.34	9.76
135°	5.01	6.22	7.11	7.68	8.09	8.50	9.35	10.44
150°	4.20	5.36	6.36	7.15	7.67	8.06	8.83	9.75