NIGHT TRAIN: ORC Rating

GPH

606.4

OSN

590.4

LOA

10.778 m

Displacement

4751 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6969

Medium

0.9135

High

1.0356

Triple Offshore

Low

0.8897

Medium

1.1049

High

1.2163

Boat Specifications

Dimensions

Length overall: 10.778 m
Beam: 3.53 m
Draft: 2.08 m
Displacement: 4751 kg
Crew weight: 623 kg
Wetted surface: 25.5 m²

Sails

Mainsail: 39.91 m²
Genoa: 47 m²
Spinnaker: 92.41 m²
Asymmetric spinnaker: 0 m²

Design

Type: THOMAS 35
Builder: TARTAN
Designer: G&S
Year built: 1988
Stability index: 113.8

Performance data

Polar CSV

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

6,41.8,5.285214,52,5.88,60,6.12,75,6.26,90,6.13,110,5.77,120,5.6,135,5.04,143.9,4.52976,150,4.23
8,39.4,6.056421,52,6.7,60,6.85,75,6.94,90,6.89,110,6.81,120,6.68,135,6.17,148.7,5.430338,150,5.35
10,37.5,6.352781,52,7.02,60,7.16,75,7.29,90,7.3,110,7.35,120,7.28,135,6.93,150,6.3,153.2,6.139466
12,36.4,6.472904,52,7.15,60,7.31,75,7.5,90,7.58,110,7.7,120,7.7,135,7.42,150,6.97,159.5,6.597826
14,36,6.55116,52,7.23,60,7.4,75,7.64,90,7.8,110,7.99,120,8.07,135,7.84,150,7.42,172.7,6.835405
16,35.8,6.620934,52,7.29,60,7.46,75,7.74,90,7.98,110,8.21,120,8.41,135,8.26,150,7.82,178.4,7.242824
20,35.8,6.670252,52,7.35,60,7.54,75,7.87,90,8.22,110,8.58,120,9.05,135,9.28,150,8.66,179,8.001219

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.88	6.12	6.26	6.13	5.77	5.6	5.04	4.23
8	6.7	6.85	6.94	6.89	6.81	6.68	6.17	5.35
10	7.02	7.16	7.29	7.3	7.35	7.28	6.93	6.3
12	7.15	7.31	7.5	7.58	7.7	7.7	7.42	6.97
14	7.23	7.4	7.64	7.8	7.99	8.07	7.84	7.42
16	7.29	7.46	7.74	7.98	8.21	8.41	8.26	7.82
20	7.35	7.54	7.87	8.22	8.58	9.05	9.28	8.66

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.8°	3.94	143.9°	3.66
8	39.4°	4.68	148.7°	4.64
10	37.5°	5.04	153.2°	5.48
12	36.4°	5.21	159.5°	6.18
14	36°	5.3	172.7°	6.78
16	35.8°	5.37	178.4°	7.24
20	35.8°	5.41	179°	8

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°	5.88	6.70	7.02	7.15	7.23	7.29	7.35
60°	6.12	6.85	7.16	7.31	7.40	7.46	7.54
75°	6.26	6.94	7.29	7.50	7.64	7.74	7.87
90°	6.13	6.89	7.30	7.58	7.80	7.98	8.22
110°	5.77	6.81	7.35	7.70	7.99	8.21	8.58
120°	5.60	6.68	7.28	7.70	8.07	8.41	9.05
135°	5.04	6.17	6.93	7.42	7.84	8.26	9.28
150°	4.23	5.35	6.30	6.97	7.42	7.82	8.66