Mah Na Mah NA: ORC Rating

GPH

592.8

OSN

576.8

LOA

11.002 m

Displacement

5500 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6906

Medium

0.924

High

1.0366

Triple Offshore

Low

0.8942

Medium

1.1391

High

1.2602

Boat Specifications

Dimensions

Length overall: 11.002 m
Beam: 3.6 m
Draft: 2.1 m
Displacement: 5500 kg
Crew weight: 674 kg
Wetted surface: 27.62 m²

Sails

Mainsail: 38.24 m²
Genoa: 34.43 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 127.31 m²

Design

Type: J 112E
Builder: J/Composites
Designer: Al Johnstone
Year built: 2017

Performance data

Polar CSV

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

6,43.6,4.929769,52,5.46,60,5.88,75,6.27,90,6.34,110,6.1,120,5.96,135,5.35,143.7,4.876364,150,4.54
8,41.3,5.816862,52,6.51,60,6.85,75,7.15,90,7.23,110,7.21,120,7.12,135,6.64,147.3,5.894161,150,5.73
10,39.5,6.376158,52,7.07,60,7.29,75,7.57,90,7.7,110,7.77,120,7.74,135,7.44,148.9,6.808623,150,6.73
12,38.2,6.629706,52,7.35,60,7.53,75,7.8,90,8.03,110,8.15,120,8.21,135,7.96,150,7.39,150.4,7.372096
14,37.8,6.758168,52,7.48,60,7.69,75,7.93,90,8.29,110,8.53,120,8.65,135,8.46,150,7.77,150.3,7.747819
16,37.9,6.85605,52,7.56,60,7.77,75,8.1,90,8.48,110,8.87,120,9.05,135,9,150,8.1,173.2,7.220795
20,38,6.928839,52,7.64,60,7.88,75,8.29,90,8.73,110,9.46,120,9.92,135,10.36,150,8.84,175.5,7.954521
24,39.1,6.958347,52,7.64,60,7.9,75,8.39,90,8.93,110,10.02,120,11.08,135,12.46,140.6,12.384605,150,11.06

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.46	5.88	6.27	6.34	6.1	5.96	5.35	4.54
8	6.51	6.85	7.15	7.23	7.21	7.12	6.64	5.73
10	7.07	7.29	7.57	7.7	7.77	7.74	7.44	6.73
12	7.35	7.53	7.8	8.03	8.15	8.21	7.96	7.39
14	7.48	7.69	7.93	8.29	8.53	8.65	8.46	7.77
16	7.56	7.77	8.1	8.48	8.87	9.05	9	8.1
20	7.64	7.88	8.29	8.73	9.46	9.92	10.36	8.84
24	7.64	7.9	8.39	8.93	10.02	11.08	12.46	11.06

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.57	143.7°	3.93
8	41.3°	4.37	147.3°	4.96
10	39.5°	4.92	148.9°	5.83
12	38.2°	5.21	150.4°	6.41
14	37.8°	5.34	150.3°	6.73
16	37.9°	5.41	173.2°	7.17
20	38°	5.46	175.5°	7.93
24	39.1°	5.4	140.6°	9.57

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°	5.46	6.51	7.07	7.35	7.48	7.56	7.64	7.64
60°	5.88	6.85	7.29	7.53	7.69	7.77	7.88	7.90
75°	6.27	7.15	7.57	7.80	7.93	8.10	8.29	8.39
90°	6.34	7.23	7.70	8.03	8.29	8.48	8.73	8.93
110°	6.10	7.21	7.77	8.15	8.53	8.87	9.46	10.02
120°	5.96	7.12	7.74	8.21	8.65	9.05	9.92	11.08
135°	5.35	6.64	7.44	7.96	8.46	9.00	10.36	12.46
150°	4.54	5.73	6.73	7.39	7.77	8.10	8.84	11.06