FRONKONSTIN — ORC Rating

GPH

608.1

OSN

590.1

LOA

9.55 m

Displacement

2524 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6719

Medium

0.8924

High

1.0185

Triple Offshore

Low

0.864

Medium

1.1114

High

1.2615

Boat Specifications

Dimensions

Length overall: 9.55 m
Beam: 2.96 m
Draft: 2.06 m
Displacement: 2524 kg
Crew weight: 160 kg
Wetted surface: 19.01 m²

Sails

Mainsail: 30.55 m²
Genoa: 21.02 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 82.19 m²

Design

Type: GRAND SURPRISE
Builder: ARCHAMBAULT
Designer: JOUBERT/NIVELT
Year built: 2000
Stability index: 130.7

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.

6,43,4.7583,52,5.3,60,5.59,75,5.81,90,5.8,110,5.92,120,5.78,135,5.2,142.8,4.758139,150,4.37
8,40.8,5.640724,52,6.34,60,6.59,75,6.77,90,6.86,110,7.04,120,6.96,135,6.49,146,5.838095,150,5.58
10,39.6,6.125787,52,6.86,60,7.09,75,7.3,90,7.31,110,7.75,120,7.71,135,7.32,149.2,6.647575,150,6.59
12,38.8,6.287388,52,7.06,60,7.35,75,7.72,90,7.83,110,8.25,120,8.46,135,8.07,149.8,7.289348,150,7.28
14,38.8,6.377208,52,7.17,60,7.49,75,8.01,90,8.32,110,8.65,120,9.1,135,8.92,147.6,8.101118,150,7.9
16,39,6.446665,52,7.24,60,7.58,75,8.19,90,8.71,110,9.03,120,9.61,135,9.89,145.3,9.098162,150,8.64
20,40.6,6.598432,52,7.31,60,7.7,75,8.41,90,9.23,110,9.75,120,10.61,135,12.13,143,11.557212,150,10.66

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.3	5.59	5.81	5.8	5.92	5.78	5.2	4.37
8	6.34	6.59	6.77	6.86	7.04	6.96	6.49	5.58
10	6.86	7.09	7.3	7.31	7.75	7.71	7.32	6.59
12	7.06	7.35	7.72	7.83	8.25	8.46	8.07	7.28
14	7.17	7.49	8.01	8.32	8.65	9.1	8.92	7.9
16	7.24	7.58	8.19	8.71	9.03	9.61	9.89	8.64
20	7.31	7.7	8.41	9.23	9.75	10.61	12.13	10.66

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.48	142.8°	3.79
8	40.8°	4.27	146°	4.84
10	39.6°	4.72	149.2°	5.71
12	38.8°	4.9	149.8°	6.3
14	38.8°	4.97	147.6°	6.84
16	39°	5.01	145.3°	7.48
20	40.6°	5.01	143°	9.23

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