Bearings in . Variation 1.3° W at 53° 24.97′ N 006° 04.91′ W on 1 December 2025, from the World Magnetic Model (WMM-2025): magnetic is true plus 1.3°. Bearings are computed from the marks' positions, so are true; magnetic is worked from the unrounded true bearing.
Courses
Course
Marks
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
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. 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.
Start line
SL
Start line
The Race Area will be Northwest of Ireland’s Eye. The starting line will be between the red and white pole displaying an orange flag on the Committee Vessel and either a cylindrical orange buoy or an orange buoy with a flag on top. Boats shall keep clear of the starting line until their warning signal.
HYC Brass Monkey Winter Series 2025 sailing instructions 8.1 and 12.1
Marks
Name
Shape
Colour
Position
Source
C
Cush
conical
black
53° 24.50′ N 006° 05.44′ W
D
Dunbo
conical
yellow
53° 24.73′ N 006° 03.85′ W
H
Hub
conical
black
53° 25.71′ N 006° 04.43′ W
I
Island
conical
black
53° 24.70′ N 006° 04.39′ W
P
Portmarnock
conical
black
53° 25.63′ N 006° 05.80′ W
HYC Autumn League 2025 course card technical sheet
S
Spit
conical
black
53° 24.42′ N 006° 04.51′ 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
F
Finish
spherical
orange
South of the Island mark in the vicinity of the Sound
1 N, 2 N, 3 N/E, 4 N/E, 5 E, 6 E, 7 S/E, 8 S/E, 9 S, 10 S, 11 S/W, 12 S/W, 13 W, 14 W, 15 N/W, 16 N/W
8. Race Area
8.1 The Race Area will be Northwest of Ireland’s Eye.
9. Courses
9.1 Courses will be in accordance with the course card, which forms part of these Sailing Instructions, available on the www.hyc.ie website and will be indicated by numeral boards displayed on the Committee Vessel.
9.2 The course applicable to each Class will be displayed for not less than 4 minutes before its start. This changes RRS 27.1.
10. Marks
10.1 Special Brass Monkey marks may be laid for the series.
10.2 Marks are orange spherical or black conical as follows:
Letter Mark
C Cush
D Dunbo
H Hub
I Island
P Portmarnock
S Spit
W West
V Viceroy
Note: The Spit mark is to be passed to the north and east.
14. The Finish
14.1 The finishing line will be a line between a red and white pole displaying a blue flag on the Committee Vessel and a spherical orange cherry mark, unless a race is shortened.
14.2 Unless a race is shortened, all finishes will be south of the Island mark in the vicinity of the Sound.
14.3 Boats, having finished, are required to keep clear of all boats still racing (including on a different race course). Those not doing so may be disqualified without a hearing. This changes RRS 63.1 and A5.1.
14.4 A race may be shortened at any mark on the course.
14.5 Any boat retiring shall inform the Race Committee on VHF channel 77