LAYLA: ORC Rating

GPH

680.7

OSN

663.4

LOA

10.8 m

Displacement

5432 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.611

Medium

0.808

High

0.9152

Triple Offshore

Low

0.7853

Medium

0.9892

High

1.083

Boat Specifications

Dimensions

Length overall: 10.8 m
Beam: 2.75 m
Draft: 1.82 m
Displacement: 5432 kg
Crew weight: 360 kg
Wetted surface: 23.2 m²

Sails

Mainsail: 32.89 m²
Genoa: 28.88 m²
Spinnaker: 77.57 m²
Asymmetric spinnaker: 0 m²

Design

Type: Avance 36
Builder: OY BATAR
Designer: Peter Norlin
Year built: 1978
Stability index: 138.8

Performance data

Polar CSV

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

6,42,4.454044,52,4.97,60,5.21,75,5.37,90,5.28,110,5.34,120,5.19,135,4.66,145.1,4.072416,150,3.86
8,40,5.117197,52,5.77,60,5.99,75,6.16,90,6.15,110,6.31,120,6.2,135,5.7,150,4.91,150.5,4.894551
10,39.9,5.539876,52,6.19,60,6.4,75,6.57,90,6.59,110,6.8,120,6.76,135,6.5,150,5.86,151.4,5.785989
12,39.6,5.723458,52,6.38,60,6.58,75,6.79,90,6.86,110,7.08,120,7.1,135,6.93,150,6.55,160.1,6.178957
14,39.4,5.823482,52,6.47,60,6.68,75,6.92,90,7.05,110,7.26,120,7.37,135,7.26,150,6.95,173.6,6.42001
16,39.4,5.901128,52,6.54,60,6.74,75,7,90,7.19,110,7.4,120,7.6,135,7.57,150,7.27,179,6.811037
20,39.9,5.983066,52,6.6,60,6.8,75,7.1,90,7.37,110,7.62,120,7.89,135,8.16,150,7.89,179,7.431132

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.97	5.21	5.37	5.28	5.34	5.19	4.66	3.86
8	5.77	5.99	6.16	6.15	6.31	6.2	5.7	4.91
10	6.19	6.4	6.57	6.59	6.8	6.76	6.5	5.86
12	6.38	6.58	6.79	6.86	7.08	7.1	6.93	6.55
14	6.47	6.68	6.92	7.05	7.26	7.37	7.26	6.95
16	6.54	6.74	7	7.19	7.4	7.6	7.57	7.27
20	6.6	6.8	7.1	7.37	7.62	7.89	8.16	7.89

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.31	145.1°	3.34
8	40°	3.92	150.5°	4.26
10	39.9°	4.25	151.4°	5.08
12	39.6°	4.41	160.1°	5.81
14	39.4°	4.5	173.6°	6.38
16	39.4°	4.56	179°	6.81
20	39.9°	4.59	179°	7.43

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°	4.97	5.77	6.19	6.38	6.47	6.54	6.60
60°	5.21	5.99	6.40	6.58	6.68	6.74	6.80
75°	5.37	6.16	6.57	6.79	6.92	7.00	7.10
90°	5.28	6.15	6.59	6.86	7.05	7.19	7.37
110°	5.34	6.31	6.80	7.08	7.26	7.40	7.62
120°	5.19	6.20	6.76	7.10	7.37	7.60	7.89
135°	4.66	5.70	6.50	6.93	7.26	7.57	8.16
150°	3.86	4.91	5.86	6.55	6.95	7.27	7.89