Miria — ORC Rating | RegattaPages

GPH

741.3

OSN

716.7

LOA

9.4 m

Displacement

3966 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5557

Medium

0.7517

High

0.8624

Triple Offshore

Low

0.7073

Medium

0.9145

High

1.0151

Boat Specifications

Dimensions

Length overall: 9.4 m
Beam: 3.06 m
Draft: 1.72 m
Displacement: 3966 kg
Crew weight: 441 kg
Wetted surface: 18.48 m²

Sails

Mainsail: 17.2 m²
Genoa: 28.88 m²
Spinnaker: 63.4 m²
Asymmetric spinnaker: 0 m²

Design

Type: UFO 31
Builder: COLVIC CRAFT
Designer: HOLMAN&PYE
Year built: 1976

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.

6,42.8,3.966037,52,4.4,60,4.6,75,4.71,90,4.63,110,4.75,120,4.61,135,4.22,147.1,3.739788,150,3.62
8,41,4.637545,52,5.18,60,5.38,75,5.51,90,5.54,110,5.7,120,5.58,135,5.17,150,4.58,151.2,4.530377
10,39.9,5.122756,52,5.68,60,5.84,75,5.97,90,6.06,110,6.22,120,6.16,135,5.9,150,5.38,153.7,5.22038
12,39,5.417258,52,5.96,60,6.1,75,6.24,90,6.32,110,6.53,120,6.51,135,6.32,150,5.98,160.6,5.619034
14,38.7,5.561034,52,6.11,60,6.25,75,6.41,90,6.46,110,6.76,120,6.78,135,6.63,150,6.34,174.1,5.850994
16,38.5,5.622226,52,6.19,60,6.35,75,6.54,90,6.63,110,6.94,120,7.02,135,6.91,150,6.63,178.1,6.213416
20,38.8,5.67148,52,6.22,60,6.42,75,6.7,90,6.88,110,7.16,120,7.42,135,7.44,150,7.14,178.8,6.751481
24,40,5.626305,52,6.2,60,6.41,75,6.75,90,7.04,110,7.29,120,7.68,135,7.99,150,7.67,178.7,7.221859

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.4	4.6	4.71	4.63	4.75	4.61	4.22	3.62
8	5.18	5.38	5.51	5.54	5.7	5.58	5.17	4.58
10	5.68	5.84	5.97	6.06	6.22	6.16	5.9	5.38
12	5.96	6.1	6.24	6.32	6.53	6.51	6.32	5.98
14	6.11	6.25	6.41	6.46	6.76	6.78	6.63	6.34
16	6.19	6.35	6.54	6.63	6.94	7.02	6.91	6.63
20	6.22	6.42	6.7	6.88	7.16	7.42	7.44	7.14
24	6.2	6.41	6.75	7.04	7.29	7.68	7.99	7.67

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	2.91	147.1°	3.14
8	41°	3.5	151.2°	3.97
10	39.9°	3.93	153.7°	4.68
12	39°	4.21	160.6°	5.3
14	38.7°	4.34	174.1°	5.82
16	38.5°	4.4	178.1°	6.21
20	38.8°	4.42	178.8°	6.75
24	40°	4.31	178.7°	7.22

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