CHEYENNE: ORC Rating

GPH

574.1

OSN

559.1

LOA

12.4 m

Displacement

7121 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7193

Medium

0.9511

High

1.0699

Triple Offshore

Low

0.9261

Medium

1.1748

High

1.2989

Boat Specifications

Dimensions

Length overall: 12.4 m
Beam: 3.5 m
Draft: 2.51 m
Displacement: 7121 kg
Crew weight: 550 kg
Wetted surface: 32.02 m²

Sails

Mainsail: 56.61 m²
Genoa: 37.86 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 132.37 m²

Design

Type: Rodman 42
Builder: Rodman
Designer: Vrolijk
Year built: 2002

Performance data

Polar CSV

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

6,42.2,5.22405,52,5.83,60,6.11,75,6.3,90,6.43,110,6.24,120,6.06,135,5.4,142.8,4.946456,150,4.55
8,40.4,6.145456,52,6.88,60,7.11,75,7.26,90,7.46,110,7.41,120,7.28,135,6.71,146.4,5.978957,150,5.75
10,38.9,6.630319,52,7.41,60,7.62,75,7.78,90,7.98,110,8.04,120,7.97,135,7.6,148.6,6.888869,150,6.79
12,38,6.814628,52,7.62,60,7.84,75,8.08,90,8.27,110,8.45,120,8.47,135,8.15,150,7.54,150.3,7.517572
14,37.7,6.938621,52,7.74,60,7.96,75,8.26,90,8.45,110,8.83,120,8.94,135,8.66,150,7.99,150.8,7.938853
16,37.5,7.020831,52,7.81,60,8.04,75,8.38,90,8.68,110,9.19,120,9.31,135,9.19,150,8.36,173,7.465648
20,37.9,7.147527,52,7.9,60,8.14,75,8.56,90,9,110,9.75,120,10.19,135,10.51,150,9.14,175.7,8.283316
24,39.4,7.156412,52,7.89,60,8.17,75,8.64,90,9.2,110,10.14,120,11.08,135,12.11,140.7,12.017985,150,10.74

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.83	6.11	6.3	6.43	6.24	6.06	5.4	4.55
8	6.88	7.11	7.26	7.46	7.41	7.28	6.71	5.75
10	7.41	7.62	7.78	7.98	8.04	7.97	7.6	6.79
12	7.62	7.84	8.08	8.27	8.45	8.47	8.15	7.54
14	7.74	7.96	8.26	8.45	8.83	8.94	8.66	7.99
16	7.81	8.04	8.38	8.68	9.19	9.31	9.19	8.36
20	7.9	8.14	8.56	9	9.75	10.19	10.51	9.14
24	7.89	8.17	8.64	9.2	10.14	11.08	12.11	10.74

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.2°	3.87	142.8°	3.94
8	40.4°	4.68	146.4°	4.98
10	38.9°	5.16	148.6°	5.88
12	38°	5.37	150.3°	6.53
14	37.7°	5.49	150.8°	6.93
16	37.5°	5.57	173°	7.41
20	37.9°	5.64	175.7°	8.26
24	39.4°	5.53	140.7°	9.3

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 kt24 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)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	5.83	6.88	7.41	7.62	7.74	7.81	7.90	7.89
60°	6.11	7.11	7.62	7.84	7.96	8.04	8.14	8.17
75°	6.30	7.26	7.78	8.08	8.26	8.38	8.56	8.64
90°	6.43	7.46	7.98	8.27	8.45	8.68	9.00	9.20
110°	6.24	7.41	8.04	8.45	8.83	9.19	9.75	10.14
120°	6.06	7.28	7.97	8.47	8.94	9.31	10.19	11.08
135°	5.40	6.71	7.60	8.15	8.66	9.19	10.51	12.11
150°	4.55	5.75	6.79	7.54	7.99	8.36	9.14	10.74