FLYING DRAGON: ORC Rating

GPH

467.1

OSN

455

LOA

21.28 m

Displacement

28418 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.967

Medium

1.3102

High

1.508

Triple Offshore

Low

1.2586

Medium

1.6356

High

1.8265

Boat Specifications

Dimensions

Length overall: 21.28 m
Beam: 5.44 m
Draft: 3.99 m
Displacement: 28418 kg
Crew weight: 1250 kg
Wetted surface: 76.93 m²

Sails

Mainsail: 138.29 m²
Genoa: 109.54 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 376.07 m²

Design

Type: SWAN 70 RK
Builder: NAUTOR
Designer: FRERS
Year built: 2001

Performance data

Polar CSV

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

6,42.6,6.344272,52,7.13,60,7.55,75,7.88,90,7.78,110,7.44,120,7.19,135,6.43,141.4,5.937145,150,5.36
8,40.9,7.527914,52,8.52,60,8.96,75,9.28,90,9.24,110,9.1,120,8.91,135,8.08,142.5,7.398973,150,6.78
10,39.8,8.239146,52,9.32,60,9.65,75,9.92,90,9.97,110,10.01,120,9.96,135,9.41,145,8.545422,150,8.08
12,39,8.582686,52,9.64,60,9.95,75,10.25,90,10.37,110,10.36,120,10.5,135,10.17,149.7,9.219413,150,9.2
14,38.5,8.778339,52,9.8,60,10.1,75,10.47,90,10.7,110,10.63,120,10.89,135,10.7,150,10,151.8,9.826354
16,37.7,8.897612,52,9.9,60,10.19,75,10.62,90,11,110,10.93,120,11.24,135,11.29,150,10.45,152.4,10.234669
20,37.1,9.140104,52,10.14,60,10.39,75,10.79,90,11.46,110,11.59,120,11.94,135,12.66,150,11.34,176.8,10.055679

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	7.13	7.55	7.88	7.78	7.44	7.19	6.43	5.36
8	8.52	8.96	9.28	9.24	9.1	8.91	8.08	6.78
10	9.32	9.65	9.92	9.97	10.01	9.96	9.41	8.08
12	9.64	9.95	10.25	10.37	10.36	10.5	10.17	9.2
14	9.8	10.1	10.47	10.7	10.63	10.89	10.7	10
16	9.9	10.19	10.62	11	10.93	11.24	11.29	10.45
20	10.14	10.39	10.79	11.46	11.59	11.94	12.66	11.34

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	4.67	141.4°	4.64
8	40.9°	5.69	142.5°	5.87
10	39.8°	6.33	145°	7
12	39°	6.67	149.7°	7.96
14	38.5°	6.87	151.8°	8.66
16	37.7°	7.04	152.4°	9.07
20	37.1°	7.29	176.8°	10.04

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°	7.13	8.52	9.32	9.64	9.80	9.90	10.14
60°	7.55	8.96	9.65	9.95	10.10	10.19	10.39
75°	7.88	9.28	9.92	10.25	10.47	10.62	10.79
90°	7.78	9.24	9.97	10.37	10.70	11.00	11.46
110°	7.44	9.10	10.01	10.36	10.63	10.93	11.59
120°	7.19	8.91	9.96	10.50	10.89	11.24	11.94
135°	6.43	8.08	9.41	10.17	10.70	11.29	12.66
150°	5.36	6.78	8.08	9.20	10.00	10.45	11.34