Derbigum: ORC Rating

GPH

678.2

OSN

657.8

LOA

13.1 m

Displacement

11260 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6453

Medium

0.8934

High

1.0753

Triple Offshore

Low

0.8438

Medium

1.1329

High

1.3075

Boat Specifications

Dimensions

Length overall: 13.1 m
Beam: 4 m
Draft: 1.88 m
Displacement: 11260 kg
Crew weight: 768 kg
Wetted surface: 37.37 m²

Sails

Mainsail: 38.48 m²
Genoa: 58.35 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 110.06 m²

Design

Type: Montevedeo 43
Designer: Fred Scholtz
Year built: 1993

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,46.2,4.189885,52,4.58,60,4.95,75,5.29,90,5.31,110,5.18,120,5.02,135,4.53,146.8,3.967664,150,3.84
8,44.5,4.977214,52,5.5,60,5.88,75,6.27,90,6.29,110,6.3,120,6.12,135,5.59,150,4.91,150.3,4.904266
10,44,5.560654,52,6.21,60,6.66,75,7.02,90,7.07,110,7.17,120,7.05,135,6.53,150,5.8,153.2,5.646516
12,45.2,6.187608,52,6.79,60,7.14,75,7.4,90,7.51,110,7.6,120,7.53,135,7.23,150,6.6,153.6,6.43064
14,45.1,6.559267,52,7.09,60,7.38,75,7.62,90,7.69,110,7.92,120,7.84,135,7.61,150,7.23,162,6.760902
16,44.1,6.670136,52,7.23,60,7.5,75,7.8,90,7.89,110,8.2,120,8.14,135,7.91,150,7.59,180,7.04
20,42.9,6.743632,52,7.34,60,7.61,75,8.01,90,8.27,110,8.55,120,8.78,135,8.56,150,8.16,180,7.74

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.58	4.95	5.29	5.31	5.18	5.02	4.53	3.84
8	5.5	5.88	6.27	6.29	6.3	6.12	5.59	4.91
10	6.21	6.66	7.02	7.07	7.17	7.05	6.53	5.8
12	6.79	7.14	7.4	7.51	7.6	7.53	7.23	6.6
14	7.09	7.38	7.62	7.69	7.92	7.84	7.61	7.23
16	7.23	7.5	7.8	7.89	8.2	8.14	7.91	7.59
20	7.34	7.61	8.01	8.27	8.55	8.78	8.56	8.16

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	46.2°	2.9	146.8°	3.32
8	44.5°	3.55	150.3°	4.26
10	44°	4	153.2°	5.04
12	45.2°	4.36	153.6°	5.76
14	45.1°	4.63	162°	6.43
16	44.1°	4.79	180°	7.04
20	42.9°	4.94	180°	7.74

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	4.58	5.50	6.21	6.79	7.09	7.23	7.34
60°	4.95	5.88	6.66	7.14	7.38	7.50	7.61
75°	5.29	6.27	7.02	7.40	7.62	7.80	8.01
90°	5.31	6.29	7.07	7.51	7.69	7.89	8.27
110°	5.18	6.30	7.17	7.60	7.92	8.20	8.55
120°	5.02	6.12	7.05	7.53	7.84	8.14	8.78
135°	4.53	5.59	6.53	7.23	7.61	7.91	8.56
150°	3.84	4.91	5.80	6.60	7.23	7.59	8.16