Blue Cirrus: ORC Rating

GPH

621.6

OSN

604.1

LOA

14.48 m

Displacement

17965 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6829

Medium

0.971

High

1.1913

Triple Offshore

Low

0.9063

Medium

1.2419

High

1.4532

Boat Specifications

Dimensions

Length overall: 14.48 m
Beam: 4.48 m
Draft: 2.43 m
Displacement: 17965 kg
Crew weight: 1140 kg
Wetted surface: 52.42 m²

Sails

Mainsail: 53.75 m²
Genoa: 35.78 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 0 m²

Design

Type: Delphia 47
Builder: DELPHIA
Designer: SKRZAT ANDREJ
Year built: 2009

Performance data

Polar CSV

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

6,45,4.794184,52,5.31,60,5.71,75,6.1,90,6.08,110,5.34,120,5.13,135,4.37,141.6,4.019429,150,3.63
8,42.8,5.683291,52,6.39,60,6.8,75,7.21,90,7.11,110,6.53,120,6.28,135,5.56,144.7,4.986904,150,4.7
10,42,6.405212,52,7.27,60,7.71,75,8.03,90,7.94,110,7.58,120,7.21,135,6.49,150,5.67,153.4,5.480039
12,42,7.024203,52,7.87,60,8.19,75,8.42,90,8.38,110,8.25,120,7.99,135,7.33,150,6.47,156.4,6.165681
14,42,7.414436,52,8.17,60,8.44,75,8.65,90,8.66,110,8.6,120,8.44,135,8.02,150,7.22,157.7,6.830884
16,41.2,7.575607,52,8.3,60,8.56,75,8.82,90,8.88,110,8.87,120,8.74,135,8.43,150,7.88,174.5,6.992191
20,40.1,7.673991,52,8.43,60,8.69,75,9.04,90,9.28,110,9.43,120,9.3,135,8.96,150,8.63,178.2,8.103999

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.31	5.71	6.1	6.08	5.34	5.13	4.37	3.63
8	6.39	6.8	7.21	7.11	6.53	6.28	5.56	4.7
10	7.27	7.71	8.03	7.94	7.58	7.21	6.49	5.67
12	7.87	8.19	8.42	8.38	8.25	7.99	7.33	6.47
14	8.17	8.44	8.65	8.66	8.6	8.44	8.02	7.22
16	8.3	8.56	8.82	8.88	8.87	8.74	8.43	7.88
20	8.43	8.69	9.04	9.28	9.43	9.3	8.96	8.63

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45°	3.39	141.6°	3.15
8	42.8°	4.17	144.7°	4.07
10	42°	4.76	153.4°	4.9
12	42°	5.22	156.4°	5.65
14	42°	5.51	157.7°	6.32
16	41.2°	5.7	174.5°	6.96
20	40.1°	5.87	178.2°	8.1

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°	5.31	6.39	7.27	7.87	8.17	8.30	8.43
60°	5.71	6.80	7.71	8.19	8.44	8.56	8.69
75°	6.10	7.21	8.03	8.42	8.65	8.82	9.04
90°	6.08	7.11	7.94	8.38	8.66	8.88	9.28
110°	5.34	6.53	7.58	8.25	8.60	8.87	9.43
120°	5.13	6.28	7.21	7.99	8.44	8.74	9.30
135°	4.37	5.56	6.49	7.33	8.02	8.43	8.96
150°	3.63	4.70	5.67	6.47	7.22	7.88	8.63