UMMAGUMMA — ORC Rating

GPH

569.7

OSN

556.6

LOA

9.5 m

Displacement

3299 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7379

Medium

0.9433

High

1.0715

Triple Offshore

Low

0.9434

Medium

1.1726

High

1.3278

Boat Specifications

Dimensions

Length overall: 9.5 m
Beam: 3.7 m
Draft: 2.37 m
Displacement: 3299 kg
Crew weight: 450 kg
Wetted surface: 24.83 m²

Sails

Mainsail: 46.73 m²
Genoa: 31.53 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 103.76 m²

Design

Type: Esyd950/Class 9.50
Builder: Bert Mauri
Designer: Siviero
Year built: 2014
Stability index: 125.3

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.

6,42.4,5.484421,52,6.11,60,6.41,75,6.63,90,6.58,110,6.19,120,6.05,135,5.48,143.9,4.97531,150,4.64
8,39.9,6.204661,52,6.94,60,7.16,75,7.34,90,7.33,110,7.24,120,7.15,135,6.72,147.5,5.999587,150,5.84
10,37.6,6.424418,52,7.24,60,7.49,75,7.86,90,7.93,110,7.99,120,7.92,135,7.5,150,6.82,150.5,6.790327
12,37,6.586234,52,7.41,60,7.68,75,8.19,90,8.51,110,8.66,120,8.72,135,8.24,150,7.46,150.2,7.444408
14,37.2,6.729189,52,7.53,60,7.85,75,8.41,90,8.94,110,9.1,120,9.5,135,9.08,147.8,8.248708,150,8.06
16,37,6.786575,52,7.61,60,7.97,75,8.59,90,9.22,110,9.52,120,10.12,135,10.04,145.7,9.187769,150,8.76
20,37.6,6.840933,52,7.71,60,8.11,75,8.84,90,9.69,110,10.7,120,11.19,135,12.57,142.1,11.646414,150,10.61

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.11	6.41	6.63	6.58	6.19	6.05	5.48	4.64
8	6.94	7.16	7.34	7.33	7.24	7.15	6.72	5.84
10	7.24	7.49	7.86	7.93	7.99	7.92	7.5	6.82
12	7.41	7.68	8.19	8.51	8.66	8.72	8.24	7.46
14	7.53	7.85	8.41	8.94	9.1	9.5	9.08	8.06
16	7.61	7.97	8.59	9.22	9.52	10.12	10.04	8.76
20	7.71	8.11	8.84	9.69	10.7	11.19	12.57	10.61

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	4.05	143.9°	4.02
8	39.9°	4.76	147.5°	5.06
10	37.6°	5.09	150.5°	5.91
12	37°	5.26	150.2°	6.46
14	37.2°	5.36	147.8°	6.98
16	37°	5.42	145.7°	7.59
20	37.6°	5.42	142.1°	9.19

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