No Secrets — ORC Rating

GPH

657

OSN

639.8

LOA

10.112 m

Displacement

2950 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.627

Medium

0.8386

High

0.9438

Triple Offshore

Low

0.8087

Medium

1.0261

High

1.1359

Boat Specifications

Dimensions

Length overall: 10.112 m
Beam: 3.41 m
Draft: 1.67 m
Displacement: 2950 kg
Crew weight: 465 kg
Wetted surface: 19.16 m²

Sails

Mainsail: 28.68 m²
Genoa: 34.51 m²
Spinnaker: 73.46 m²
Asymmetric spinnaker: 0 m²

Design

Type: Optima 101
Builder: Dehler Yachts
Designer: Van de Stadt
Year built: 1981
Stability index: 119.7

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.

6,43,4.566874,52,5.1,60,5.41,75,5.67,90,5.6,110,5.43,120,5.28,135,4.78,146.2,4.199838,150,4.03
8,42.6,5.447651,52,6.02,60,6.25,75,6.4,90,6.41,110,6.44,120,6.34,135,5.88,150,5.06,150.2,5.058971
10,40.6,5.900394,52,6.45,60,6.61,75,6.76,90,6.8,110,6.94,120,6.87,135,6.59,150,6.02,152,5.912016
12,39.6,6.047917,52,6.63,60,6.82,75,7.04,90,7.13,110,7.4,120,7.35,135,7.05,150,6.64,160.3,6.288035
14,39.4,6.121127,52,6.71,60,6.93,75,7.27,90,7.45,110,7.77,120,7.8,135,7.52,150,7.06,175.4,6.480876
16,39.3,6.151141,52,6.75,60,6.99,75,7.4,90,7.7,110,8,120,8.23,135,7.97,150,7.5,177.2,6.888224
20,40,6.161522,52,6.74,60,7.02,75,7.51,90,8,110,8.4,120,8.91,135,9.15,150,8.39,177.2,7.68918

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.1	5.41	5.67	5.6	5.43	5.28	4.78	4.03
8	6.02	6.25	6.4	6.41	6.44	6.34	5.88	5.06
10	6.45	6.61	6.76	6.8	6.94	6.87	6.59	6.02
12	6.63	6.82	7.04	7.13	7.4	7.35	7.05	6.64
14	6.71	6.93	7.27	7.45	7.77	7.8	7.52	7.06
16	6.75	6.99	7.4	7.7	8	8.23	7.97	7.5
20	6.74	7.02	7.51	8	8.4	8.91	9.15	8.39

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.34	146.2°	3.49
8	42.6°	4.01	150.2°	4.39
10	40.6°	4.48	152°	5.22
12	39.6°	4.66	160.3°	5.92
14	39.4°	4.73	175.4°	6.46
16	39.3°	4.76	177.2°	6.88
20	40°	4.72	177.2°	7.68

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