ENCOUNTER: ORC Rating

GPH

553.8

OSN

541.3

LOA

16.157 m

Displacement

17984 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8409

Medium

1.1086

High

1.2779

Triple Offshore

Low

1.0833

Medium

1.366

High

1.5135

Boat Specifications

Dimensions

Length overall: 16.157 m
Beam: 4.52 m
Draft: 2.54 m
Displacement: 17984 kg
Crew weight: 1000 kg
Wetted surface: 51.67 m²

Sails

Mainsail: 75.33 m²
Genoa: 110.62 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 238.87 m²

Design

Type: ONE OFF
Builder: PALMER JOHNSON
Designer: FRERS German
Year built: 1974

Performance data

Polar CSV

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

6,42.6,5.488406,52,6.12,60,6.45,75,6.73,90,6.69,110,6.33,120,6.2,135,5.66,142.8,5.222654,150,4.81
8,41.6,6.3921,52,7.2,60,7.52,75,7.73,90,7.72,110,7.63,120,7.5,135,6.88,149.2,5.960697,150,5.91
10,41.9,7.066933,52,7.78,60,8,75,8.16,90,8.2,110,8.27,120,8.2,135,7.86,148.8,7.049628,150,6.96
12,40.5,7.298733,52,8.01,60,8.22,75,8.41,90,8.49,110,8.61,120,8.6,135,8.35,150,7.82,154.6,7.571939
14,39.4,7.415234,52,8.13,60,8.33,75,8.59,90,8.72,110,8.82,120,8.96,135,8.72,150,8.31,163.7,7.77241
16,39,7.501808,52,8.2,60,8.41,75,8.7,90,8.92,110,9,120,9.26,135,9.11,150,8.66,180,8.04
20,37.6,7.560366,52,8.26,60,8.48,75,8.83,90,9.24,110,9.32,120,9.65,135,9.91,150,9.42,180,8.77

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.12	6.45	6.73	6.69	6.33	6.2	5.66	4.81
8	7.2	7.52	7.73	7.72	7.63	7.5	6.88	5.91
10	7.78	8	8.16	8.2	8.27	8.2	7.86	6.96
12	8.01	8.22	8.41	8.49	8.61	8.6	8.35	7.82
14	8.13	8.33	8.59	8.72	8.82	8.96	8.72	8.31
16	8.2	8.41	8.7	8.92	9	9.26	9.11	8.66
20	8.26	8.48	8.83	9.24	9.32	9.65	9.91	9.42

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	4.04	142.8°	4.16
8	41.6°	4.78	149.2°	5.12
10	41.9°	5.26	148.8°	6.03
12	40.5°	5.55	154.6°	6.84
14	39.4°	5.73	163.7°	7.46
16	39°	5.83	180°	8.04
20	37.6°	5.99	180°	8.77

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°	6.12	7.20	7.78	8.01	8.13	8.20	8.26
60°	6.45	7.52	8.00	8.22	8.33	8.41	8.48
75°	6.73	7.73	8.16	8.41	8.59	8.70	8.83
90°	6.69	7.72	8.20	8.49	8.72	8.92	9.24
110°	6.33	7.63	8.27	8.61	8.82	9.00	9.32
120°	6.20	7.50	8.20	8.60	8.96	9.26	9.65
135°	5.66	6.88	7.86	8.35	8.72	9.11	9.91
150°	4.81	5.91	6.96	7.82	8.31	8.66	9.42