SURPRISE — ORC Rating

GPH

638.7

OSN

623.6

LOA

10.449 m

Displacement

4633 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6647

Medium

0.8684

High

0.9746

Triple Offshore

Low

0.847

Medium

1.0476

High

1.1491

Boat Specifications

Dimensions

Length overall: 10.449 m
Beam: 3.27 m
Draft: 2.03 m
Displacement: 4633 kg
Crew weight: 700 kg
Wetted surface: 22.82 m²

Sails

Mainsail: 29.38 m²
Genoa: 51.2 m²
Spinnaker: 97.41 m²
Asymmetric spinnaker: 89.98 m²

Design

Type: PETERSON 34 CUSTOM
Builder: MUELLERS
Designer: PETERSON
Year built: 1979

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.

6,41.2,4.824466,52,5.43,60,5.71,75,5.93,90,5.86,110,5.51,120,5.37,135,4.92,147,4.352126,150,4.22
8,40.9,5.688933,52,6.28,60,6.45,75,6.56,90,6.56,110,6.51,120,6.41,135,6.01,150,5.23,150.5,5.204769
10,39,6.060638,52,6.62,60,6.75,75,6.86,90,6.88,110,6.94,120,6.9,135,6.66,150,6.13,152.2,6.025452
12,37.5,6.151105,52,6.75,60,6.9,75,7.08,90,7.13,110,7.29,120,7.27,135,7.04,150,6.69,162,6.277229
14,36.8,6.194337,52,6.82,60,6.98,75,7.24,90,7.37,110,7.62,120,7.66,135,7.42,150,7.04,180,6.54
16,37.1,6.268933,52,6.85,60,7.03,75,7.35,90,7.59,110,7.86,120,8.01,135,7.84,150,7.39,180,6.91
20,36.8,6.269269,52,6.86,60,7.05,75,7.43,90,7.85,110,8.18,120,8.52,135,8.62,150,8.15,180,7.59

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.43	5.71	5.93	5.86	5.51	5.37	4.92	4.22
8	6.28	6.45	6.56	6.56	6.51	6.41	6.01	5.23
10	6.62	6.75	6.86	6.88	6.94	6.9	6.66	6.13
12	6.75	6.9	7.08	7.13	7.29	7.27	7.04	6.69
14	6.82	6.98	7.24	7.37	7.62	7.66	7.42	7.04
16	6.85	7.03	7.35	7.59	7.86	8.01	7.84	7.39
20	6.86	7.05	7.43	7.85	8.18	8.52	8.62	8.15

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.2°	3.63	147°	3.65
8	40.9°	4.3	150.5°	4.53
10	39°	4.71	152.2°	5.33
12	37.5°	4.88	162°	5.97
14	36.8°	4.96	180°	6.54
16	37.1°	5	180°	6.91
20	36.8°	5.02	180°	7.59

Loading polar chart…