Ultraman II — ORC Rating

GPH

617.8

OSN

599.2

LOA

9.29 m

Displacement

2200 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7447

Medium

1.0067

High

1.1534

Triple Offshore

Low

0.9582

Medium

1.229

High

1.3978

Boat Specifications

Dimensions

Length overall: 9.29 m
Beam: 2.81 m
Draft: 2.08 m
Displacement: 2200 kg
Crew weight: 578 kg
Wetted surface: 18.1 m²

Sails

Mainsail: 30.36 m²
Genoa: 21.11 m²
Spinnaker: 60.66 m²
Asymmetric spinnaker: 0 m²

Design

Type: Ross 930
Builder: Coubray
Designer: Ross
Year built: 1981

Velocity Prediction

Polar CSV

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

6,42.3,4.745609,52,5.32,60,5.62,75,5.86,90,5.79,110,5.76,120,5.59,135,5.04,144.4,4.513586,150,4.24
8,41.3,5.697064,52,6.36,60,6.56,75,6.7,90,6.74,110,6.81,120,6.7,135,6.25,148,5.459596,150,5.35
10,38.9,6.193437,52,6.8,60,6.96,75,7.1,90,7.15,110,7.35,120,7.25,135,6.94,150,6.33,151.6,6.252497
12,37.3,6.34842,52,6.99,60,7.19,75,7.45,90,7.54,110,7.92,120,7.9,135,7.44,150,6.96,160.3,6.564199
14,36.5,6.419053,52,7.09,60,7.33,75,7.76,90,8,110,8.34,120,8.6,135,8.09,150,7.42,180,6.77
16,36,6.452275,52,7.15,60,7.41,75,7.94,90,8.42,110,8.74,120,9.22,135,8.87,150,8.01,180,7.22
20,35.6,6.518257,52,7.25,60,7.52,75,8.12,90,8.94,110,9.47,120,10.13,135,10.93,150,9.53,180,8.28

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.32	5.62	5.86	5.79	5.76	5.59	5.04	4.24
8	6.36	6.56	6.7	6.74	6.81	6.7	6.25	5.35
10	6.8	6.96	7.1	7.15	7.35	7.25	6.94	6.33
12	6.99	7.19	7.45	7.54	7.92	7.9	7.44	6.96
14	7.09	7.33	7.76	8	8.34	8.6	8.09	7.42
16	7.15	7.41	7.94	8.42	8.74	9.22	8.87	8.01
20	7.25	7.52	8.12	8.94	9.47	10.13	10.93	9.53

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.3°	3.51	144.4°	3.67
8	41.3°	4.28	148°	4.63
10	38.9°	4.82	151.6°	5.5
12	37.3°	5.05	160.3°	6.18
14	36.5°	5.16	180°	6.77
16	36°	5.22	180°	7.22
20	35.6°	5.3	180°	8.28

Loading polar chart…