FRONKONSTIN — ORC Rating

GPH

608

OSN

591.3

LOA

9.55 m

Displacement

2524 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.674

Medium

0.8892

High

1.0233

Triple Offshore

Low

0.8699

Medium

1.108

High

1.2599

Boat Specifications

Dimensions

Length overall: 9.55 m
Beam: 2.96 m
Draft: 2.06 m
Displacement: 2524 kg
Crew weight: 140 kg
Wetted surface: 18.91 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: 132

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.

6,43.2,4.746432,52,5.29,60,5.61,75,5.88,90,5.93,110,6.02,120,5.87,135,5.26,143.3,4.776897,150,4.43
8,41.8,5.71447,52,6.4,60,6.67,75,6.86,90,6.92,110,7.11,120,7.04,135,6.6,145.1,5.974503,150,5.66
10,40.6,6.150634,52,6.84,60,7.07,75,7.31,90,7.35,110,7.72,120,7.75,135,7.35,150,6.69,150.1,6.678996
12,39.6,6.255571,52,6.97,60,7.23,75,7.68,90,7.88,110,8.14,120,8.48,135,8.12,150,7.31,150.5,7.284378
14,39.4,6.315243,52,7.03,60,7.32,75,7.9,90,8.37,110,8.53,120,8.98,135,9.08,147.3,8.175772,150,7.95
16,39.6,6.489181,52,7.13,60,7.38,75,8.05,90,8.73,110,8.9,120,9.48,135,10.16,144.8,9.337389,150,8.81
20,40.5,6.588586,52,7.26,60,7.65,75,8.29,90,9.13,110,9.98,120,10.43,135,11.82,143.3,11.960952,150,11.08

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.29	5.61	5.88	5.93	6.02	5.87	5.26	4.43
8	6.4	6.67	6.86	6.92	7.11	7.04	6.6	5.66
10	6.84	7.07	7.31	7.35	7.72	7.75	7.35	6.69
12	6.97	7.23	7.68	7.88	8.14	8.48	8.12	7.31
14	7.03	7.32	7.9	8.37	8.53	8.98	9.08	7.95
16	7.13	7.38	8.05	8.73	8.9	9.48	10.16	8.81
20	7.26	7.65	8.29	9.13	9.98	10.43	11.82	11.08

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.46	143.3°	3.83
8	41.8°	4.26	145.1°	4.9
10	40.6°	4.67	150.1°	5.79
12	39.6°	4.82	150.5°	6.34
14	39.4°	4.88	147.3°	6.88
16	39.6°	5	144.8°	7.63
20	40.5°	5.01	143.3°	9.59

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