SIRADELLA: ORC Rating

GPH

588.3

OSN

570.8

LOA

12.1 m

Displacement

6474 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6886

Medium

0.9393

High

1.0829

Triple Offshore

Low

0.8886

Medium

1.1528

High

1.2926

Boat Specifications

Dimensions

Length overall: 12.1 m
Beam: 3.78 m
Draft: 2.41 m
Displacement: 6474 kg
Crew weight: 750 kg
Wetted surface: 30.64 m²

Sails

Mainsail: 50.21 m²
Genoa: 39.13 m²
Spinnaker: 107.16 m²
Asymmetric spinnaker: 0 m²

Design

Type: IMX 40
Builder: XCHATS
Designer: X YACHTS
Year built: 2000
Stability index: 121.8

Performance data

Polar CSV

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

6,42.6,4.999341,52,5.59,60,5.9,75,6.15,90,6.07,110,5.95,120,5.78,135,5.2,142.1,4.803037,150,4.38
8,41.2,5.940871,52,6.67,60,6.95,75,7.15,90,7.12,110,7.19,120,7.04,135,6.43,148.4,5.623868,150,5.53
10,40,6.631469,52,7.32,60,7.51,75,7.64,90,7.69,110,7.81,120,7.72,135,7.35,150,6.56,150.5,6.526067
12,38.4,6.852169,52,7.58,60,7.77,75,7.95,90,7.99,110,8.26,120,8.2,135,7.86,150,7.36,156.1,7.06587
14,38.2,6.986005,52,7.68,60,7.89,75,8.19,90,8.32,110,8.64,120,8.7,135,8.33,150,7.85,166.4,7.294531
16,37.8,7.023938,52,7.73,60,7.96,75,8.34,90,8.63,110,8.9,120,9.19,135,8.84,150,8.28,177.2,7.629108
20,37.3,7.152973,52,7.86,60,8.07,75,8.49,90,9.06,110,9.47,120,9.83,135,10.03,150,9.27,177.2,8.4601

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.59	5.9	6.15	6.07	5.95	5.78	5.2	4.38
8	6.67	6.95	7.15	7.12	7.19	7.04	6.43	5.53
10	7.32	7.51	7.64	7.69	7.81	7.72	7.35	6.56
12	7.58	7.77	7.95	7.99	8.26	8.2	7.86	7.36
14	7.68	7.89	8.19	8.32	8.64	8.7	8.33	7.85
16	7.73	7.96	8.34	8.63	8.9	9.19	8.84	8.28
20	7.86	8.07	8.49	9.06	9.47	9.83	10.03	9.27

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.68	142.1°	3.79
8	41.2°	4.47	148.4°	4.79
10	40°	5.08	150.5°	5.68
12	38.4°	5.37	156.1°	6.46
14	38.2°	5.49	166.4°	7.09
16	37.8°	5.55	177.2°	7.62
20	37.3°	5.69	177.2°	8.45

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°	5.59	6.67	7.32	7.58	7.68	7.73	7.86
60°	5.90	6.95	7.51	7.77	7.89	7.96	8.07
75°	6.15	7.15	7.64	7.95	8.19	8.34	8.49
90°	6.07	7.12	7.69	7.99	8.32	8.63	9.06
110°	5.95	7.19	7.81	8.26	8.64	8.90	9.47
120°	5.78	7.04	7.72	8.20	8.70	9.19	9.83
135°	5.20	6.43	7.35	7.86	8.33	8.84	10.03
150°	4.38	5.53	6.56	7.36	7.85	8.28	9.27