RATS ON FIRE: ORC Rating

GPH

537.1

OSN

523.2

LOA

12.497 m

Displacement

5408 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8703

Medium

1.145

High

1.3029

Triple Offshore

Low

1.1197

Medium

1.4064

High

1.5781

Boat Specifications

Dimensions

Length overall: 12.497 m
Beam: 4.01 m
Draft: 2.65 m
Displacement: 5408 kg
Crew weight: 850 kg
Wetted surface: 30.63 m²

Sails

Mainsail: 59.99 m²
Genoa: 48.1 m²
Spinnaker: 134.27 m²
Asymmetric spinnaker: 0 m²

Design

Type: ILC 40
Builder: CARROLL MARINE
Designer: FARR
Year built: 1994

Performance data

Polar CSV

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

6,42.1,5.727949,52,6.43,60,6.78,75,7.04,90,6.91,110,6.55,120,6.34,135,5.71,143.3,5.188484,150,4.8
8,40.5,6.759547,52,7.52,60,7.74,75,7.89,90,7.82,110,7.79,120,7.67,135,7.1,145.2,6.369123,150,6.04
10,38.5,7.104449,52,7.86,60,8.08,75,8.34,90,8.33,110,8.42,120,8.35,135,7.95,149.7,7.169367,150,7.15
12,37.3,7.24097,52,8.01,60,8.26,75,8.66,90,8.83,110,8.86,120,9.03,135,8.57,150,7.91,156.4,7.584333
14,36.7,7.32125,52,8.1,60,8.37,75,8.86,90,9.24,110,9.27,120,9.59,135,9.27,150,8.47,170,7.676625
16,36.2,7.360957,52,8.15,60,8.45,75,9,90,9.52,110,9.62,120,10.03,135,10.1,150,9.1,180,8.12
20,36.2,7.460094,52,8.31,60,8.65,75,9.14,90,9.83,110,10.57,120,11.02,135,12.07,150,10.67,180,9.25

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.43	6.78	7.04	6.91	6.55	6.34	5.71	4.8
8	7.52	7.74	7.89	7.82	7.79	7.67	7.1	6.04
10	7.86	8.08	8.34	8.33	8.42	8.35	7.95	7.15
12	8.01	8.26	8.66	8.83	8.86	9.03	8.57	7.91
14	8.1	8.37	8.86	9.24	9.27	9.59	9.27	8.47
16	8.15	8.45	9	9.52	9.62	10.03	10.1	9.1
20	8.31	8.65	9.14	9.83	10.57	11.02	12.07	10.67

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.1°	4.25	143.3°	4.16
8	40.5°	5.14	145.2°	5.23
10	38.5°	5.56	149.7°	6.19
12	37.3°	5.76	156.4°	6.95
14	36.7°	5.87	170°	7.56
16	36.2°	5.94	180°	8.12
20	36.2°	6.02	180°	9.25

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°	6.43	7.52	7.86	8.01	8.10	8.15	8.31
60°	6.78	7.74	8.08	8.26	8.37	8.45	8.65
75°	7.04	7.89	8.34	8.66	8.86	9.00	9.14
90°	6.91	7.82	8.33	8.83	9.24	9.52	9.83
110°	6.55	7.79	8.42	8.86	9.27	9.62	10.57
120°	6.34	7.67	8.35	9.03	9.59	10.03	11.02
135°	5.71	7.10	7.95	8.57	9.27	10.10	12.07
150°	4.80	6.04	7.15	7.91	8.47	9.10	10.67