ENCOUNTER: ORC Rating

GPH

553.7

OSN

541.3

LOA

16.157 m

Displacement

17984 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8414

Medium

1.108

High

1.2753

Triple Offshore

Low

1.0842

Medium

1.3663

High

1.5126

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: 80.83 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.

6,42.7,5.48363,52,6.12,60,6.45,75,6.73,90,6.68,110,6.34,120,6.21,135,5.67,143,5.233927,150,4.83
8,41.7,6.388637,52,7.2,60,7.53,75,7.74,90,7.74,110,7.66,120,7.52,135,6.9,149.3,5.977771,150,5.94
10,42.1,7.062225,52,7.78,60,8,75,8.17,90,8.22,110,8.28,120,8.22,135,7.87,148.9,7.065552,150,6.99
12,40.8,7.3052,52,8,60,8.22,75,8.42,90,8.51,110,8.62,120,8.62,135,8.36,150,7.84,154.8,7.592611
14,39.8,7.419136,52,8.12,60,8.33,75,8.59,90,8.74,110,8.83,120,8.98,135,8.74,150,8.33,164.2,7.784099
16,39.5,7.516609,52,8.19,60,8.41,75,8.71,90,8.95,110,9,120,9.27,135,9.13,150,8.68,180,8.06
20,38.2,7.571353,52,8.26,60,8.48,75,8.83,90,9.26,110,9.33,120,9.65,135,9.94,150,9.44,180,8.8

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.12	6.45	6.73	6.68	6.34	6.21	5.67	4.83
8	7.2	7.53	7.74	7.74	7.66	7.52	6.9	5.94
10	7.78	8	8.17	8.22	8.28	8.22	7.87	6.99
12	8	8.22	8.42	8.51	8.62	8.62	8.36	7.84
14	8.12	8.33	8.59	8.74	8.83	8.98	8.74	8.33
16	8.19	8.41	8.71	8.95	9	9.27	9.13	8.68
20	8.26	8.48	8.83	9.26	9.33	9.65	9.94	9.44

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.7°	4.03	143°	4.18
8	41.7°	4.77	149.3°	5.14
10	42.1°	5.24	148.9°	6.05
12	40.8°	5.53	154.8°	6.87
14	39.8°	5.7	164.2°	7.49
16	39.5°	5.8	180°	8.06
20	38.2°	5.95	180°	8.8

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	8.00	8.12	8.19	8.26
60°	6.45	7.53	8.00	8.22	8.33	8.41	8.48
75°	6.73	7.74	8.17	8.42	8.59	8.71	8.83
90°	6.68	7.74	8.22	8.51	8.74	8.95	9.26
110°	6.34	7.66	8.28	8.62	8.83	9.00	9.33
120°	6.21	7.52	8.22	8.62	8.98	9.27	9.65
135°	5.67	6.90	7.87	8.36	8.74	9.13	9.94
150°	4.83	5.94	6.99	7.84	8.33	8.68	9.44