TIGRA: ORC Rating

GPH

738.1

OSN

712.2

LOA

7 m

Displacement

1483 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5446

Medium

0.7556

High

0.8723

Triple Offshore

Low

0.704

Medium

0.9207

High

1.0414

Boat Specifications

Dimensions

Length overall: 7 m
Beam: 2.48 m
Draft: 1.57 m
Displacement: 1483 kg
Crew weight: 380 kg
Wetted surface: 13.09 m²

Sails

Mainsail: 18.82 m²
Genoa: 11.01 m²
Spinnaker: 40.82 m²
Asymmetric spinnaker: 0 m²

Design

Type: Mantra 7000
Builder: A - Yachts
Designer: A.Arminskij
Year built: 1999
Stability index: 106.9

Performance data

Polar CSV

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

6,43.8,3.78242,52,4.18,60,4.42,75,4.57,90,4.94,110,4.97,120,4.8,135,4.32,146,3.835773,150,3.67
8,42.3,4.556325,52,5.08,60,5.33,75,5.49,90,5.82,110,5.89,120,5.78,135,5.36,150,4.68,150.2,4.66716
10,41.2,5.116858,52,5.65,60,5.81,75,5.93,90,6.19,110,6.31,120,6.24,135,5.99,150,5.54,153.8,5.37192
12,38.8,5.402021,52,5.93,60,6.06,75,6.18,90,6.36,110,6.73,120,6.68,135,6.38,150,6.05,164.6,5.642595
14,37.8,5.505249,52,6.07,60,6.23,75,6.42,90,6.51,110,7.07,120,7.17,135,6.84,150,6.41,178.4,5.942317
16,37.6,5.553525,52,6.13,60,6.32,75,6.64,90,6.8,110,7.31,120,7.64,135,7.36,150,6.84,179,6.290958
20,37.6,5.578768,52,6.15,60,6.38,75,6.87,90,7.33,110,7.67,120,8.28,135,8.8,150,7.86,177.2,7.088463

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.18	4.42	4.57	4.94	4.97	4.8	4.32	3.67
8	5.08	5.33	5.49	5.82	5.89	5.78	5.36	4.68
10	5.65	5.81	5.93	6.19	6.31	6.24	5.99	5.54
12	5.93	6.06	6.18	6.36	6.73	6.68	6.38	6.05
14	6.07	6.23	6.42	6.51	7.07	7.17	6.84	6.41
16	6.13	6.32	6.64	6.8	7.31	7.64	7.36	6.84
20	6.15	6.38	6.87	7.33	7.67	8.28	8.8	7.86

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	2.73	146°	3.18
8	42.3°	3.37	150.2°	4.05
10	41.2°	3.85	153.8°	4.82
12	38.8°	4.21	164.6°	5.44
14	37.8°	4.35	178.4°	5.94
16	37.6°	4.4	179°	6.29
20	37.6°	4.42	177.2°	7.08

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°	4.18	5.08	5.65	5.93	6.07	6.13	6.15
60°	4.42	5.33	5.81	6.06	6.23	6.32	6.38
75°	4.57	5.49	5.93	6.18	6.42	6.64	6.87
90°	4.94	5.82	6.19	6.36	6.51	6.80	7.33
110°	4.97	5.89	6.31	6.73	7.07	7.31	7.67
120°	4.80	5.78	6.24	6.68	7.17	7.64	8.28
135°	4.32	5.36	5.99	6.38	6.84	7.36	8.80
150°	3.67	4.68	5.54	6.05	6.41	6.84	7.86