LA WALLY 4_O: ORC Rating

GPH

621.7

OSN

611.6

LOA

7.99 m

Displacement

1621 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6892

Medium

0.8606

High

0.9662

Triple Offshore

Low

0.8837

Medium

1.0658

High

1.1825

Boat Specifications

Dimensions

Length overall: 7.99 m
Beam: 2.54 m
Draft: 1.97 m
Displacement: 1621 kg
Crew weight: 290 kg
Wetted surface: 16.01 m²

Sails

Mainsail: 27.97 m²
Genoa: 19.94 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 71.98 m²

Design

Type: SEASCAPE 27
Builder: BIEHLMARIN
Designer: SAM MANUARD
Year built: 2012

Performance data

Polar CSV

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

6,42.8,5.15176,52,5.76,60,6.06,75,6.28,90,6.27,110,5.9,120,5.76,135,5.16,144,4.672337,150,4.36
8,40.5,5.786383,52,6.4,60,6.6,75,6.81,90,6.81,110,6.77,120,6.69,135,6.32,147,5.663726,150,5.48
10,38.6,5.924349,52,6.57,60,6.77,75,7.11,90,7.29,110,7.27,120,7.35,135,6.95,150,6.36,150.2,6.349642
12,38.2,6.006183,52,6.66,60,6.89,75,7.28,90,7.63,110,7.67,120,7.97,135,7.64,150,6.88,151,6.825824
14,38.6,6.026714,52,6.71,60,6.96,75,7.4,90,7.83,110,8.05,120,8.42,135,8.51,146.8,7.696313,150,7.43
16,38.4,6.073803,52,6.73,60,6.95,75,7.47,90,8,110,8.57,120,8.89,135,9.53,144.2,8.753935,150,8.2
20,39.8,6.091501,52,6.73,60,7.01,75,7.62,90,8.14,110,9.23,120,9.71,135,11.08,141.9,11.551144,150,10.5

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.76	6.06	6.28	6.27	5.9	5.76	5.16	4.36
8	6.4	6.6	6.81	6.81	6.77	6.69	6.32	5.48
10	6.57	6.77	7.11	7.29	7.27	7.35	6.95	6.36
12	6.66	6.89	7.28	7.63	7.67	7.97	7.64	6.88
14	6.71	6.96	7.4	7.83	8.05	8.42	8.51	7.43
16	6.73	6.95	7.47	8	8.57	8.89	9.53	8.2
20	6.73	7.01	7.62	8.14	9.23	9.71	11.08	10.5

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.78	144°	3.78
8	40.5°	4.4	147°	4.75
10	38.6°	4.63	150.2°	5.51
12	38.2°	4.72	151°	5.97
14	38.6°	4.71	146.8°	6.44
16	38.4°	4.76	144.2°	7.1
20	39.8°	4.68	141.9°	9.09

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°	5.76	6.40	6.57	6.66	6.71	6.73	6.73
60°	6.06	6.60	6.77	6.89	6.96	6.95	7.01
75°	6.28	6.81	7.11	7.28	7.40	7.47	7.62
90°	6.27	6.81	7.29	7.63	7.83	8.00	8.14
110°	5.90	6.77	7.27	7.67	8.05	8.57	9.23
120°	5.76	6.69	7.35	7.97	8.42	8.89	9.71
135°	5.16	6.32	6.95	7.64	8.51	9.53	11.08
150°	4.36	5.48	6.36	6.88	7.43	8.20	10.50