LADY DAY 998: ORC Rating

GPH

612.4

OSN

598.6

LOA

10.3 m

Displacement

4441 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6622

Medium

0.8884

High

1.0073

Triple Offshore

Low

0.8631

Medium

1.1022

High

1.2302

Boat Specifications

Dimensions

Length overall: 10.3 m
Beam: 3.54 m
Draft: 1.89 m
Displacement: 4441 kg
Crew weight: 680 kg
Wetted surface: 24.68 m²

Sails

Mainsail: 37.62 m²
Genoa: 32.12 m²
Spinnaker: 92.31 m²
Asymmetric spinnaker: 109.04 m²

Design

Type: Italia 9.98 F
Builder: Italia Yachts
Designer: Polli
Year built: 2014

Performance data

Polar CSV

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

6,43.5,4.701021,52,5.26,60,5.6,75,6.03,90,6.29,110,6.06,120,5.83,135,5.21,144,4.72178,150,4.41
8,42.2,5.561521,52,6.24,60,6.55,75,6.95,90,7.14,110,7.05,120,6.96,135,6.45,148,5.648265,150,5.53
10,41.2,6.193391,52,6.85,60,7.06,75,7.35,90,7.58,110,7.59,120,7.51,135,7.21,148.5,6.614748,150,6.51
12,40.1,6.432033,52,7.13,60,7.33,75,7.56,90,7.96,110,8.06,120,8.03,135,7.68,150,7.14,158,6.773198
14,40.5,6.588586,52,7.23,60,7.47,75,7.8,90,8.21,110,8.48,120,8.57,135,8.21,150,7.56,180,6.89
16,40.5,6.628038,52,7.27,60,7.53,75,7.98,90,8.4,110,8.94,120,9.05,135,8.75,150,8.01,180,7.37
20,40.9,6.720879,52,7.33,60,7.59,75,8.1,90,8.7,110,9.67,120,9.9,135,10.21,150,9.06,180,8.22

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.26	5.6	6.03	6.29	6.06	5.83	5.21	4.41
8	6.24	6.55	6.95	7.14	7.05	6.96	6.45	5.53
10	6.85	7.06	7.35	7.58	7.59	7.51	7.21	6.51
12	7.13	7.33	7.56	7.96	8.06	8.03	7.68	7.14
14	7.23	7.47	7.8	8.21	8.48	8.57	8.21	7.56
16	7.27	7.53	7.98	8.4	8.94	9.05	8.75	8.01
20	7.33	7.59	8.1	8.7	9.67	9.9	10.21	9.06

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.41	144°	3.82
8	42.2°	4.12	148°	4.79
10	41.2°	4.66	148.5°	5.64
12	40.1°	4.92	158°	6.28
14	40.5°	5.01	180°	6.89
16	40.5°	5.04	180°	7.37
20	40.9°	5.08	180°	8.22

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°	5.26	6.24	6.85	7.13	7.23	7.27	7.33
60°	5.60	6.55	7.06	7.33	7.47	7.53	7.59
75°	6.03	6.95	7.35	7.56	7.80	7.98	8.10
90°	6.29	7.14	7.58	7.96	8.21	8.40	8.70
110°	6.06	7.05	7.59	8.06	8.48	8.94	9.67
120°	5.83	6.96	7.51	8.03	8.57	9.05	9.90
135°	5.21	6.45	7.21	7.68	8.21	8.75	10.21
150°	4.41	5.53	6.51	7.14	7.56	8.01	9.06