All marks are rounding marks except those in a box, which are passing marks. Red marks are rounded or passed to port, green to starboard. The number to the right of a course is the length in nautical miles the club prints for it, which allows for beating and for the legs to and from marks the card cannot place — not the sum of the legs below. Select a course to draw it on the chart: its legs are numbered in sailing order, a leg sailed again is drawn beside the first, and a ring shows the side each mark is left on.
Marks
Name
Shape
Colour
Position
A
Apex
conical
black
53° 26.76′ N 006° 03.26′ W
B
Balscadden
conical
orange
53° 23.30′ N 006° 03.26′ W
C
Cush
conical
black
53° 24.61′ N 006° 05.45′ W
D
Dunbo
conical
yellow
53° 24.73′ N 006° 03.85′ W
E
East
conical
black
53° 26.00′ N 006° 02.20′ W
F
Finish
cylindrical
orange
Between Island Mark and Howth Sound
G
Garbh
conical
black
53° 25.00′ N 006° 02.32′ W
H
Hub
conical
black
53° 25.71′ N 006° 04.43′ W
I
Island
conical
black
53° 24.70′ N 006° 04.36′ W
J
Thulla
conical
black
53° 23.80′ N 006° 03.40′ W
K
Stack
conical
black
53° 24.60′ N 006° 03.11′ W
M
Malahide
inflatable
yellow
53° 27.23′ N 006° 05.59′ W
O
Osprey
conical
orange
53° 25.41′ N 006° 03.52′ W
P
Portmarnock
conical
black
53° 25.63′ N 006° 05.80′ W
Q
Rowan Rocks
iala
black
53° 23.88′ N 006° 03.22′ W
R
South Rowan
iala
green
53° 23.78′ N 006° 03.88′ W
S
Spit
conical
black
53° 24.35′ N 006° 04.48′ W
T
Talbot
inflatable
yellow
53° 27.31′ N 006° 01.30′ W
U
Ulysses
conical
orange
53° 26.22′ N 006° 04.97′ W
V
Viceroy
conical
orange
53° 25.12′ N 006° 04.78′ W
W
West
conical
black
53° 24.96′ N 006° 06.07′ W
X
Xebec
barrel
black
53° 24.12′ N 006° 04.33′ W
Z
Zephyr
inflatable
black
Upwind of Start Line
Bearings between marks (° true)
from \ to
A
B
C
D
E
G
H
I
J
K
M
O
P
Q
R
S
T
U
V
W
X
A
180
211
190
140
162
214
198
182
178
289
187
233
180
187
197
065
242
209
223
194
B
000
315
346
013
018
344
335
351
004
341
356
327
002
322
325
016
341
334
315
322
C
031
135
083
054
078
029
082
124
090
358
055
348
119
132
114
042
010
038
313
126
D
010
166
263
038
073
341
264
164
106
337
016
308
156
181
225
030
336
305
280
205
E
320
193
234
218
184
258
225
198
201
301
233
260
196
204
219
022
278
240
246
214
G
342
198
258
254
004
299
256
208
230
319
300
287
206
217
243
015
308
275
269
234
H
034
164
209
161
078
119
178
162
145
336
119
264
158
170
181
049
328
199
233
178
I
018
155
262
084
045
076
358
148
098
344
035
317
140
163
192
035
347
329
284
178
J
002
171
304
344
018
028
342
328
012
339
357
322
053
266
311
020
339
328
306
300
K
358
184
270
286
021
050
325
278
192
331
343
303
185
209
253
022
326
298
282
237
M
109
161
178
157
121
139
156
164
159
151
146
184
157
164
167
088
160
167
187
166
O
007
176
235
196
053
120
299
215
177
163
326
279
173
188
208
035
313
249
254
201
P
053
147
168
128
080
107
084
137
142
123
004
099
139
148
148
058
040
130
194
150
Q
000
182
299
336
016
026
338
320
233
005
337
353
319
256
302
018
336
323
302
290
R
007
142
312
001
024
037
350
343
086
029
344
007
328
076
328
024
345
338
312
322
S
017
145
294
045
039
063
001
012
130
073
347
028
328
122
148
033
351
347
303
159
T
245
196
223
211
202
195
229
215
200
202
268
215
238
198
204
213
244
223
230
210
U
062
161
190
156
098
128
148
167
159
146
340
133
220
156
165
171
063
174
207
170
V
029
154
218
125
060
095
019
149
148
118
347
069
310
143
158
167
043
354
258
165
W
043
135
133
100
066
089
052
104
126
102
007
073
014
122
132
123
050
027
078
129
X
014
142
306
025
034
054
358
358
120
057
346
021
330
110
142
339
029
350
345
309
Distances between marks (NM)
from \ to
A
B
C
D
E
G
H
I
J
K
M
O
P
Q
R
S
T
U
V
W
X
A
3.46
2.52
2.06
0.99
1.85
1.26
2.16
2.96
2.16
1.47
1.36
1.89
2.88
3.00
2.52
1.29
1.15
1.87
2.46
2.72
B
3.46
1.85
1.47
2.77
1.79
2.51
1.55
0.51
1.30
4.17
2.12
2.78
0.58
0.61
1.28
4.18
3.09
2.03
2.36
1.04
C
2.52
1.85
0.96
2.39
1.91
1.26
0.66
1.47
1.40
2.62
1.40
1.04
1.52
1.25
0.63
3.66
1.64
0.65
0.51
0.83
D
2.06
1.47
0.96
1.61
0.95
1.04
0.31
0.97
0.46
2.71
0.71
1.47
0.93
0.95
0.53
3.00
1.63
0.68
1.34
0.67
E
0.99
2.77
2.39
1.61
1.00
1.36
1.83
2.31
1.50
2.37
0.98
2.18
2.21
2.44
2.14
1.42
1.67
1.77
2.53
2.27
G
1.85
1.79
1.91
0.95
1.00
1.44
1.25
1.36
0.62
2.96
0.82
2.17
1.24
1.54
1.44
2.39
2.00
1.47
2.24
1.49
H
1.26
2.51
1.26
1.04
1.36
1.44
1.01
2.01
1.36
1.67
0.62
0.82
1.97
1.96
1.36
2.46
0.60
0.63
1.23
1.59
I
2.16
1.55
0.66
0.31
1.83
1.25
1.01
1.07
0.75
2.64
0.87
1.27
1.07
0.96
0.36
3.19
1.56
0.49
1.05
0.58
J
2.96
0.51
1.47
0.97
2.31
1.36
2.01
1.07
0.82
3.67
1.61
2.32
0.13
0.29
0.85
3.73
2.60
1.56
1.97
0.64
K
2.16
1.30
1.40
0.46
1.50
0.62
1.36
0.75
0.82
3.02
0.85
1.91
0.72
0.94
0.85
2.92
1.96
1.12
1.80
0.87
M
1.47
4.17
2.62
2.71
2.37
2.96
1.67
2.64
3.67
3.02
2.20
1.61
3.64
3.60
2.96
2.56
1.08
2.17
2.29
3.20
O
1.36
2.12
1.40
0.71
0.98
0.82
0.62
0.87
1.61
0.85
2.20
1.38
1.54
1.65
1.21
2.32
1.19
0.81
1.59
1.38
P
1.89
2.78
1.04
1.47
2.18
2.17
0.82
1.27
2.32
1.91
1.61
1.38
2.33
2.18
1.50
3.17
0.77
0.79
0.69
1.75
Q
2.88
0.58
1.52
0.93
2.21
1.24
1.97
1.07
0.13
0.72
3.64
1.54
2.33
0.41
0.89
3.62
2.56
1.55
2.01
0.70
R
3.00
0.61
1.25
0.95
2.44
1.54
1.96
0.96
0.29
0.94
3.60
1.65
2.18
0.41
0.67
3.85
2.53
1.44
1.76
0.43
S
2.52
1.28
0.63
0.53
2.14
1.44
1.36
0.36
0.85
0.85
2.96
1.21
1.50
0.89
0.67
3.52
1.89
0.79
1.13
0.25
T
1.29
4.18
3.66
3.00
1.42
2.39
2.46
3.19
3.73
2.92
2.56
2.32
3.17
3.62
3.85
3.52
2.44
3.02
3.69
3.67
U
1.15
3.09
1.64
1.63
1.67
2.00
0.60
1.56
2.60
1.96
1.08
1.19
0.77
2.56
2.53
1.89
2.44
1.11
1.42
2.14
V
1.87
2.03
0.65
0.68
1.77
1.47
0.63
0.49
1.56
1.12
2.17
0.81
0.79
1.55
1.44
0.79
3.02
1.11
0.79
1.04
W
2.46
2.36
0.51
1.34
2.53
2.24
1.23
1.05
1.97
1.80
2.29
1.59
0.69
2.01
1.76
1.13
3.69
1.42
0.79
1.34
X
2.72
1.04
0.83
0.67
2.27
1.49
1.59
0.58
0.64
0.87
3.20
1.38
1.75
0.70
0.43
0.25
3.67
2.14
1.04
1.34
Card heading
Offshore Autumn League
HYC COURSE CARD - 2026 Rev 0 (xx/yy/2026)
SEPT 6TH DRAFT
Wind direction
Wind
A 000°, B 020°, C 040°, D 060°, E 080°, F 100°, G 120°, H 140°, J 160°, K 180°, L 200°, M 220°, N 240°, P 260°, Q 280°, R 300°, S 320°, T 340°
Card notes
Marks coloured RED shall be rounded / passed to PORT. Those in GREEN and underlined shall be rounded / passed to STARBOARD.
The finishing line for Offshore courses shall be between the ??????????????????, unless a race is shortened at a mark of the course.
This course card forms part of the Sailing Instructions.