DIJOR: ORC Rating

GPH

668.3

OSN

647.6

LOA

13 m

Displacement

10741 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5626

Medium

0.8013

High

0.9655

Triple Offshore

Low

0.7456

Medium

1.0301

High

1.2021

Boat Specifications

Dimensions

Length overall: 13 m
Beam: 4.2 m
Draft: 1.89 m
Displacement: 10741 kg
Crew weight: 450 kg
Wetted surface: 37.82 m²

Sails

Mainsail: 38.83 m²
Genoa: 46.03 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 98.62 m²

Design

Type: ELAN 434 Impres.
Builder: Elan
Designer: Humphreys
Year built: 2005
Stability index: 131.6

Performance data

Polar CSV

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

6,46.9,4.054012,52,4.42,60,4.81,75,5.22,90,5.53,110,5.4,120,5.12,135,4.49,145.1,4.023645,150,3.82
8,45.6,4.973821,52,5.44,60,5.82,75,6.33,90,6.7,110,6.58,120,6.3,135,5.67,146.6,5.102726,150,4.92
10,44.2,5.607394,52,6.22,60,6.62,75,7.22,90,7.56,110,7.5,120,7.29,135,6.68,146.6,6.060985,150,5.85
12,44.2,6.235087,52,6.88,60,7.26,75,7.7,90,8,110,7.99,120,7.86,135,7.5,146.2,6.943571,150,6.67
14,43.8,6.678118,52,7.32,60,7.63,75,7.91,90,8.28,110,8.34,120,8.24,135,7.98,147.5,7.481698,150,7.28
16,43.6,6.918247,52,7.56,60,7.84,75,8.08,90,8.5,110,8.68,120,8.6,135,8.34,150,7.7,150.2,7.686409
20,43.2,6.982468,52,7.68,60,7.99,75,8.39,90,8.75,110,9.35,120,9.39,135,9.1,150,8.27,176.6,7.663489

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.42	4.81	5.22	5.53	5.4	5.12	4.49	3.82
8	5.44	5.82	6.33	6.7	6.58	6.3	5.67	4.92
10	6.22	6.62	7.22	7.56	7.5	7.29	6.68	5.85
12	6.88	7.26	7.7	8	7.99	7.86	7.5	6.67
14	7.32	7.63	7.91	8.28	8.34	8.24	7.98	7.28
16	7.56	7.84	8.08	8.5	8.68	8.6	8.34	7.7
20	7.68	7.99	8.39	8.75	9.35	9.39	9.1	8.27

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	46.9°	2.77	145.1°	3.3
8	45.6°	3.48	146.6°	4.26
10	44.2°	4.02	146.6°	5.06
12	44.2°	4.47	146.2°	5.77
14	43.8°	4.82	147.5°	6.31
16	43.6°	5.01	150.2°	6.67
20	43.2°	5.09	176.6°	7.65

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°	4.42	5.44	6.22	6.88	7.32	7.56	7.68
60°	4.81	5.82	6.62	7.26	7.63	7.84	7.99
75°	5.22	6.33	7.22	7.70	7.91	8.08	8.39
90°	5.53	6.70	7.56	8.00	8.28	8.50	8.75
110°	5.40	6.58	7.50	7.99	8.34	8.68	9.35
120°	5.12	6.30	7.29	7.86	8.24	8.60	9.39
135°	4.49	5.67	6.68	7.50	7.98	8.34	9.10
150°	3.82	4.92	5.85	6.67	7.28	7.70	8.27