DON IGNAZIO — ORC Rating

GPH

623.9

OSN

606.3

LOA

9.77 m

Displacement

3207 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6544

Medium

0.8824

High

1.0061

Triple Offshore

Low

0.8464

Medium

1.082

High

1.216

Boat Specifications

Dimensions

Length overall: 9.77 m
Beam: 3.13 m
Draft: 1.88 m
Displacement: 3207 kg
Crew weight: 525 kg
Wetted surface: 20.79 m²

Sails

Mainsail: 37.2 m²
Genoa: 23.43 m²
Spinnaker: 65.88 m²
Asymmetric spinnaker: 0 m²

Design

Type: MARTINOLI 31
Builder: AST. MARTINOLI
Designer: E. MARTINOLI
Year built: 2001
Stability index: 130

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.

6,43,4.785646,52,5.36,60,5.67,75,5.93,90,5.85,110,5.72,120,5.53,135,4.95,143.3,4.477562,150,4.14
8,41.7,5.705575,52,6.36,60,6.59,75,6.75,90,6.75,110,6.8,120,6.68,135,6.14,148.7,5.325008,150,5.26
10,40,6.200685,52,6.82,60,6.99,75,7.14,90,7.19,110,7.32,120,7.24,135,6.91,150,6.26,151.4,6.18463
12,38.8,6.351545,52,6.99,60,7.2,75,7.44,90,7.53,110,7.83,120,7.76,135,7.38,150,6.94,159.2,6.589464
14,38.4,6.418326,52,7.08,60,7.3,75,7.69,90,7.92,110,8.26,120,8.36,135,7.92,150,7.38,174.8,6.777895
16,38.1,6.48084,52,7.1,60,7.36,75,7.84,90,8.27,110,8.56,120,8.96,135,8.55,150,7.89,178.4,7.202808
20,38.4,6.571447,52,7.23,60,7.52,75,7.95,90,8.71,110,9.42,120,9.76,135,10.16,150,9.12,175.7,8.152949

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.36	5.67	5.93	5.85	5.72	5.53	4.95	4.14
8	6.36	6.59	6.75	6.75	6.8	6.68	6.14	5.26
10	6.82	6.99	7.14	7.19	7.32	7.24	6.91	6.26
12	6.99	7.2	7.44	7.53	7.83	7.76	7.38	6.94
14	7.08	7.3	7.69	7.92	8.26	8.36	7.92	7.38
16	7.1	7.36	7.84	8.27	8.56	8.96	8.55	7.89
20	7.23	7.52	7.95	8.71	9.42	9.76	10.16	9.12

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.5	143.3°	3.59
8	41.7°	4.26	148.7°	4.55
10	40°	4.75	151.4°	5.43
12	38.8°	4.95	159.2°	6.16
14	38.4°	5.03	174.8°	6.75
16	38.1°	5.1	178.4°	7.2
20	38.4°	5.15	175.7°	8.13

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