CALIOPE: ORC Rating

GPH

536.9

OSN

520.6

LOA

13.838 m

Displacement

10510 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7612

Medium

1.0255

High

1.1552

Triple Offshore

Low

0.9796

Medium

1.2622

High

1.4013

Boat Specifications

Dimensions

Length overall: 13.838 m
Beam: 4.25 m
Draft: 2.61 m
Displacement: 10510 kg
Crew weight: 500 kg
Wetted surface: 41.86 m²

Sails

Mainsail: 65.7 m²
Genoa: 53 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 193.57 m²

Design

Type: J-45
Builder: J Composites
Designer: A.Johnstone J/BOAT
Year built: 2021
Stability index: 133.6

Performance data

Polar CSV

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

6,43,5.46931,52,6.11,60,6.45,75,6.69,90,6.55,110,6.62,120,6.47,135,5.81,142.6,5.324675,150,4.89
8,41.2,6.525655,52,7.29,60,7.58,75,7.76,90,7.74,110,7.93,120,7.83,135,7.26,145.7,6.500437,150,6.2
10,39.4,7.13053,52,7.95,60,8.18,75,8.33,90,8.3,110,8.61,120,8.58,135,8.22,148.7,7.431604,150,7.34
12,38.2,7.393204,52,8.25,60,8.47,75,8.68,90,8.7,110,9.03,120,9.09,135,8.82,150,8.18,151,8.10638
14,37.6,7.535123,52,8.4,60,8.63,75,8.92,90,9.03,110,9.31,120,9.57,135,9.37,150,8.67,150.5,8.640146
16,37.6,7.648718,52,8.49,60,8.74,75,9.1,90,9.32,110,9.58,120,9.96,135,9.95,149.3,9.141105,150,9.08
20,37.8,7.770627,52,8.58,60,8.85,75,9.32,90,9.78,110,10.06,120,10.65,135,11.4,150,9.93,174.8,8.826326

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.11	6.45	6.69	6.55	6.62	6.47	5.81	4.89
8	7.29	7.58	7.76	7.74	7.93	7.83	7.26	6.2
10	7.95	8.18	8.33	8.3	8.61	8.58	8.22	7.34
12	8.25	8.47	8.68	8.7	9.03	9.09	8.82	8.18
14	8.4	8.63	8.92	9.03	9.31	9.57	9.37	8.67
16	8.49	8.74	9.1	9.32	9.58	9.96	9.95	9.08
20	8.58	8.85	9.32	9.78	10.06	10.65	11.4	9.93

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	4	142.6°	4.23
8	41.2°	4.91	145.7°	5.37
10	39.4°	5.51	148.7°	6.35
12	38.2°	5.81	151°	7.09
14	37.6°	5.97	150.5°	7.52
16	37.6°	6.06	149.3°	7.86
20	37.8°	6.14	174.8°	8.79

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°	6.11	7.29	7.95	8.25	8.40	8.49	8.58
60°	6.45	7.58	8.18	8.47	8.63	8.74	8.85
75°	6.69	7.76	8.33	8.68	8.92	9.10	9.32
90°	6.55	7.74	8.30	8.70	9.03	9.32	9.78
110°	6.62	7.93	8.61	9.03	9.31	9.58	10.06
120°	6.47	7.83	8.58	9.09	9.57	9.96	10.65
135°	5.81	7.26	8.22	8.82	9.37	9.95	11.40
150°	4.89	6.20	7.34	8.18	8.67	9.08	9.93