TENDERFOOT — ORC Rating

GPH

768

OSN

743.2

LOA

6.505 m

Displacement

915 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5207

Medium

0.7164

High

0.8226

Triple Offshore

Low

0.6737

Medium

0.8841

High

1.0114

Boat Specifications

Dimensions

Length overall: 6.505 m
Beam: 2.51 m
Draft: 1.24 m
Displacement: 915 kg
Crew weight: 275 kg
Wetted surface: 11.34 m²

Sails

Mainsail: 13.46 m²
Genoa: 8.86 m²
Spinnaker: 31.44 m²
Asymmetric spinnaker: 0 m²

Design

Type: F & F 65 STD
Builder: F&F Boats
Designer: Jac de Ridder
Year built: 1992

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.

6,43.5,3.611928,52,4,60,4.28,75,4.46,90,4.73,110,4.79,120,4.64,135,4.15,148.5,3.588853,150,3.54
8,42,4.279112,52,4.79,60,5.03,75,5.28,90,5.59,110,5.64,120,5.55,135,5.08,150,4.48,152,4.394372
10,41.6,4.814134,52,5.35,60,5.54,75,5.75,90,6.05,110,6.13,120,6.03,135,5.78,150,5.28,154,5.129095
12,40.9,5.17296,52,5.67,60,5.83,75,6,90,6.39,110,6.65,120,6.53,135,6.2,150,5.84,172,5.341988
14,39.8,5.336572,52,5.87,60,6.06,75,6.29,90,6.57,110,7.2,120,7.09,135,6.68,150,6.23,180,5.77
16,40.9,5.424332,52,5.92,60,6.18,75,6.59,90,6.78,110,7.61,120,7.77,135,7.24,150,6.68,180,6.14
20,43.3,5.441259,52,5.89,60,6.19,75,6.8,90,7.38,110,8.23,120,9.01,135,8.73,150,7.78,180,6.99

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4	4.28	4.46	4.73	4.79	4.64	4.15	3.54
8	4.79	5.03	5.28	5.59	5.64	5.55	5.08	4.48
10	5.35	5.54	5.75	6.05	6.13	6.03	5.78	5.28
12	5.67	5.83	6	6.39	6.65	6.53	6.2	5.84
14	5.87	6.06	6.29	6.57	7.2	7.09	6.68	6.23
16	5.92	6.18	6.59	6.78	7.61	7.77	7.24	6.68
20	5.89	6.19	6.8	7.38	8.23	9.01	8.73	7.78

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	2.62	148.5°	3.06
8	42°	3.18	152°	3.88
10	41.6°	3.6	154°	4.61
12	40.9°	3.91	172°	5.29
14	39.8°	4.1	180°	5.77
16	40.9°	4.1	180°	6.14
20	43.3°	3.96	180°	6.99

Loading polar chart…