First Lady: ORC Rating

GPH

710.9

OSN

683.7

LOA

10.54 m

Displacement

5395 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5534

Medium

0.7802

High

0.9166

Triple Offshore

Low

0.714

Medium

0.9654

High

1.0944

Boat Specifications

Dimensions

Length overall: 10.54 m
Beam: 3.49 m
Draft: 1.93 m
Displacement: 5395 kg
Crew weight: 529 kg
Wetted surface: 24.42 m²

Sails

Mainsail: 27.6 m²
Genoa: 29.53 m²
Spinnaker: 72.29 m²
Asymmetric spinnaker: 0 m²

Design

Type: First 345
Builder: Beneteau
Designer: Berret
Year built: 1984
Stability index: 118.4

Performance data

Polar CSV

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

6,44.4,3.97496,52,4.39,60,4.64,75,4.79,90,4.77,110,4.86,120,4.7,135,4.21,146.6,3.713251,150,3.58
8,42.6,4.809148,52,5.33,60,5.58,75,5.76,90,5.84,110,5.98,120,5.82,135,5.31,149.8,4.662869,150,4.65
10,41.1,5.374465,52,5.98,60,6.21,75,6.39,90,6.53,110,6.69,120,6.59,135,6.2,150,5.56,152.9,5.414436
12,40.2,5.747608,52,6.38,60,6.58,75,6.76,90,6.9,110,7.08,120,7.04,135,6.77,150,6.3,157.4,5.979137
14,39.9,5.970031,52,6.61,60,6.8,75,6.99,90,7.08,110,7.36,120,7.35,135,7.15,150,6.8,168.2,6.26234
16,39.4,6.030539,52,6.72,60,6.93,75,7.16,90,7.24,110,7.6,120,7.63,135,7.46,150,7.14,177.2,6.647937
20,39.9,6.113416,52,6.79,60,7.02,75,7.36,90,7.56,110,7.94,120,8.18,135,8.11,150,7.74,179,7.29111

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.39	4.64	4.79	4.77	4.86	4.7	4.21	3.58
8	5.33	5.58	5.76	5.84	5.98	5.82	5.31	4.65
10	5.98	6.21	6.39	6.53	6.69	6.59	6.2	5.56
12	6.38	6.58	6.76	6.9	7.08	7.04	6.77	6.3
14	6.61	6.8	6.99	7.08	7.36	7.35	7.15	6.8
16	6.72	6.93	7.16	7.24	7.6	7.63	7.46	7.14
20	6.79	7.02	7.36	7.56	7.94	8.18	8.11	7.74

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	2.84	146.6°	3.1
8	42.6°	3.54	149.8°	4.03
10	41.1°	4.05	152.9°	4.82
12	40.2°	4.39	157.4°	5.52
14	39.9°	4.58	168.2°	6.13
16	39.4°	4.66	177.2°	6.64
20	39.9°	4.69	179°	7.29

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°	4.39	5.33	5.98	6.38	6.61	6.72	6.79
60°	4.64	5.58	6.21	6.58	6.80	6.93	7.02
75°	4.79	5.76	6.39	6.76	6.99	7.16	7.36
90°	4.77	5.84	6.53	6.90	7.08	7.24	7.56
110°	4.86	5.98	6.69	7.08	7.36	7.60	7.94
120°	4.70	5.82	6.59	7.04	7.35	7.63	8.18
135°	4.21	5.31	6.20	6.77	7.15	7.46	8.11
150°	3.58	4.65	5.56	6.30	6.80	7.14	7.74