ASCATA III: ORC Rating

GPH

625.1

OSN

605.7

LOA

12.124 m

Displacement

8476 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7217

Medium

0.992

High

1.1674

Triple Offshore

Low

0.9309

Medium

1.2234

High

1.3845

Boat Specifications

Dimensions

Length overall: 12.124 m
Beam: 4.14 m
Draft: 2.33 m
Displacement: 8476 kg
Crew weight: 680 kg
Wetted surface: 33.31 m²

Sails

Mainsail: 45.94 m²
Genoa: 41.27 m²
Spinnaker: 89.1 m²
Asymmetric spinnaker: 0 m²

Design

Type: FORTUNA 12
Builder: RONAUTICA
Designer: VISIER
Year built: 1990

Performance data

Polar CSV

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

6,42.4,4.658372,52,5.22,60,5.49,75,5.72,90,5.67,110,5.54,120,5.36,135,4.84,145.4,4.288475,150,4.08
8,40.9,5.477252,52,6.17,60,6.48,75,6.72,90,6.67,110,6.71,120,6.5,135,5.91,150,5.16,150.4,5.129415
10,40.6,6.190146,52,6.91,60,7.13,75,7.29,90,7.36,110,7.41,120,7.29,135,6.84,150,6.07,153,5.914659
12,39.5,6.622391,52,7.27,60,7.44,75,7.59,90,7.7,110,7.79,120,7.71,135,7.42,150,6.89,155.3,6.61524
14,38.2,6.782405,52,7.45,60,7.63,75,7.81,90,7.89,110,8.12,120,8.04,135,7.77,150,7.41,171.4,6.766075
16,37.6,6.840933,52,7.54,60,7.74,75,7.99,90,8.1,110,8.46,120,8.4,135,8.1,150,7.75,180,7.25
20,37.6,6.891419,52,7.59,60,7.82,75,8.22,90,8.53,110,8.89,120,9.11,135,8.86,150,8.4,180,7.92

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.22	5.49	5.72	5.67	5.54	5.36	4.84	4.08
8	6.17	6.48	6.72	6.67	6.71	6.5	5.91	5.16
10	6.91	7.13	7.29	7.36	7.41	7.29	6.84	6.07
12	7.27	7.44	7.59	7.7	7.79	7.71	7.42	6.89
14	7.45	7.63	7.81	7.89	8.12	8.04	7.77	7.41
16	7.54	7.74	7.99	8.1	8.46	8.4	8.1	7.75
20	7.59	7.82	8.22	8.53	8.89	9.11	8.86	8.4

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.44	145.4°	3.53
8	40.9°	4.14	150.4°	4.46
10	40.6°	4.7	153°	5.27
12	39.5°	5.11	155.3°	6.01
14	38.2°	5.33	171.4°	6.69
16	37.6°	5.42	180°	7.25
20	37.6°	5.46	180°	7.92

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°	5.22	6.17	6.91	7.27	7.45	7.54	7.59
60°	5.49	6.48	7.13	7.44	7.63	7.74	7.82
75°	5.72	6.72	7.29	7.59	7.81	7.99	8.22
90°	5.67	6.67	7.36	7.70	7.89	8.10	8.53
110°	5.54	6.71	7.41	7.79	8.12	8.46	8.89
120°	5.36	6.50	7.29	7.71	8.04	8.40	9.11
135°	4.84	5.91	6.84	7.42	7.77	8.10	8.86
150°	4.08	5.16	6.07	6.89	7.41	7.75	8.40