LA MARIE MORGAN II: ORC Rating

GPH

777.5

OSN

752.6

LOA

8.573 m

Displacement

2600 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5251

Medium

0.7105

High

0.8045

Triple Offshore

Low

0.6736

Medium

0.8739

High

0.9636

Boat Specifications

Dimensions

Length overall: 8.573 m
Beam: 2.73 m
Draft: 1.72 m
Displacement: 2600 kg
Crew weight: 210 kg
Wetted surface: 15.19 m²

Sails

Mainsail: 16 m²
Genoa: 21.19 m²
Spinnaker: 52.18 m²
Asymmetric spinnaker: 48.9 m²

Design

Type: DELPH 28
Builder: ARTECNA
Designer: MAURIC ANDRE
Year built: 1976

Performance data

Polar CSV

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

6,43,3.705457,52,4.1,60,4.31,75,4.45,90,4.52,110,4.63,120,4.48,135,4.04,146.4,3.577769,150,3.44
8,40.8,4.359342,52,4.88,60,5.1,75,5.27,90,5.4,110,5.57,120,5.47,135,5.05,150,4.42,150.1,4.418058
10,40.3,4.798941,52,5.37,60,5.58,75,5.76,90,5.88,110,6.08,120,6.06,135,5.8,150,5.26,152.7,5.142822
12,40.5,5.063085,52,5.63,60,5.82,75,6.02,90,6.1,110,6.38,120,6.4,135,6.24,150,5.88,159.7,5.544367
14,40.8,5.178369,52,5.75,60,5.95,75,6.18,90,6.29,110,6.61,120,6.68,135,6.57,150,6.27,173.6,5.775996
16,40.8,5.23121,52,5.8,60,6.01,75,6.29,90,6.45,110,6.76,120,6.92,135,6.87,150,6.58,178.1,6.143378
20,41.5,5.233954,52,5.81,60,6.05,75,6.4,90,6.67,110,6.99,120,7.3,135,7.44,150,7.18,178.6,6.73201
24,43.1,5.190627,52,5.74,60,6.02,75,6.44,90,6.8,110,7.01,120,7.55,135,8.08,150,7.84,178.6,7.292177

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.1	4.31	4.45	4.52	4.63	4.48	4.04	3.44
8	4.88	5.1	5.27	5.4	5.57	5.47	5.05	4.42
10	5.37	5.58	5.76	5.88	6.08	6.06	5.8	5.26
12	5.63	5.82	6.02	6.1	6.38	6.4	6.24	5.88
14	5.75	5.95	6.18	6.29	6.61	6.68	6.57	6.27
16	5.8	6.01	6.29	6.45	6.76	6.92	6.87	6.58
20	5.81	6.05	6.4	6.67	6.99	7.3	7.44	7.18
24	5.74	6.02	6.44	6.8	7.01	7.55	8.08	7.84

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	2.71	146.4°	2.98
8	40.8°	3.3	150.1°	3.83
10	40.3°	3.66	152.7°	4.57
12	40.5°	3.85	159.7°	5.2
14	40.8°	3.92	173.6°	5.74
16	40.8°	3.96	178.1°	6.14
20	41.5°	3.92	178.6°	6.73
24	43.1°	3.79	178.6°	7.29

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 kt24 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)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	4.10	4.88	5.37	5.63	5.75	5.80	5.81	5.74
60°	4.31	5.10	5.58	5.82	5.95	6.01	6.05	6.02
75°	4.45	5.27	5.76	6.02	6.18	6.29	6.40	6.44
90°	4.52	5.40	5.88	6.10	6.29	6.45	6.67	6.80
110°	4.63	5.57	6.08	6.38	6.61	6.76	6.99	7.01
120°	4.48	5.47	6.06	6.40	6.68	6.92	7.30	7.55
135°	4.04	5.05	5.80	6.24	6.57	6.87	7.44	8.08
150°	3.44	4.42	5.26	5.88	6.27	6.58	7.18	7.84