# AIB DBSC Summer Series 2026 sailing instructions amendment 2, all committee vessel courses

Dublin Bay Sailing Club incorporating

The Royal Alfred Yacht Club www.dbsc.ie

AIB DBSC Summer Series 2026 All Committee Vessel Courses

The Sailing Instructions relating to committee vessel starts and finishes are amended to cover a situation where the committee vessel cannot anchor, allowing the starting line or finishing line to be defined by two marks or by a mark and an anchored RIB. The committee vessel will remain in the vicinity and will signal the course and display flag signals as normal. This affects Sailing Instructions Supplements B, C, D and G. The changes are shown in full below.

Brian Mathews Vice Commodore 3 July 2026

SI Supplement B – Fixed-Mark Courses, Committee Vessel In section B4 The Start, a new instruction 4.3 is added, as below. The existing instructions 4.3 to 4.5 are re-numbered 4.4 to 4.6 respectively. Section B6 The Finish is amended in a similar way, adding a new instruction 6.3 as below.

## B4 The Start

4.3 If, for any reason, the committee vessel is unable to anchor in its correct starting line position, the starting line may be between two starting marks, or between a starting mark and a staff displaying an orange flag on a RIB. The committee vessel may be close to either end of the starting line but will not define the starting line. It will be restricted in its ability to manoeuvre and shall be treated as an obstruction. The fact that this alternative starting line is being used will be announced on VHF, using the channel shown on the course card. [NGR]

## B6 The Finish

6.3 If, for any reason, the committee vessel is unable to anchor in its correct finishing line position, the finishing line may be between two finishing marks, or between a finishing mark and a staff displaying a blue flag on a RIB. The committee vessel may be close to either end of the finishing line but will not define the finishing line. It will be restricted in its ability to manoeuvre and shall be treated as an obstruction. The fact that this alternative finishing line is being used will be announced on VHF, using the channel shown on the course card. [NGR]

SI Supplement C – Coastal Races In section C6 The Start, a new instruction 6.3 is added, as below. The existing instructions 6.3 to 6.5 are re-numbered 6.4 to 6.6 respectively. Section C7 The Finish is amended in a similar way, adding a new instruction 7.3 as below.

## C6 The Start

6.3 If, for any reason, the committee vessel is unable to anchor in its correct starting line position, the starting line may be between two starting marks, or between a starting mark and a staff displaying an orange flag on a RIB. The committee vessel may be close to either end of the starting line but will not define the starting line. It will be restricted in its ability to manoeuvre and shall be treated as an obstruction. The fact that this alternative starting line is being used will be announced on VHF Chanel 74. Failure to receive this announcement shall not constitute grounds for redress. This changes RRS 61.4(b).

## C7 The Finish

7.3 If, for any reason, the committee vessel is unable to anchor in its correct finishing line position, the finishing line may be between two finishing marks, or between a finishing mark and a staff displaying a blue flag on a RIB. The committee vessel may be close to either end of the finishing line but will not define the finishing line. It will be restricted in its ability to manoeuvre and shall be treated as an obstruction. The fact that this alternative finishing line is being used will be announced on VHF Chanel 74. Failure to receive this announcement shall not constitute grounds for redress. This changes RRS 61.4(b).

SI Supplement D – Dinghies In section D7 The Start, instruction 7.3 is extended, as below. Section D9 The Finish is amended in a similar way, extending instruction 9.1 as below.

## D7 The Start

7.3 The starting line will normally be between a red and white staff on the main race committee vessel at the starboard end, and a starting mark (or a staff on a RIB, displaying an orange flag) at the port end. However, if, for any reason, the main committee vessel is unable to anchor in its correct starting line position, the starting line may be between a staff displaying an orange flag on a RIB at the starboard end and a starting mark at the port end. The main committee vessel may be close to either end of the starting line but will not define the starting line. It will be restricted in its ability to manoeuvre and shall be treated as an obstruction.

## D9 The Finish

9.1 The finishing line will normally be between a red and white staff displaying a blue flag on the committee vessel and a finishing mark. However, if, for any reason, the main committee vessel is unable to anchor in its correct finishing line position, the finishing line may be between a staff displaying a blue flag on a RIB at the starboard end and a finishing mark at the port end. The main committee vessel may be close to either end of the finishing line but will not define the finishing line. It will be restricted in its ability to manoeuvre and shall be treated as an obstruction.

SI Supplement G – Green Fleet In section G7 The Start, a new instruction 7.4 is added, as below. The existing instruction 7.4 is renumbered 7.5. Section G9 The Finish is amended by adding a new instruction 9.3 as below. The existing instructions 9.3 and 9.4 are re-numbered 9.4 and 9.5 respectively.

## G7 The Start

7.4 If, for any reason, the main committee vessel is unable to anchor in its correct starting line position, the starting line may be between a staff displaying an orange flag on a RIB at the starboard end and a starting mark at the port end. The main committee vessel may be close to either end of the starting line but will not define the starting line. It will be restricted in its ability to manoeuvre and shall be treated as an obstruction. The fact that this alternative starting line is being used will be announced on VHF Chanel 72. Failure to receive this announcement shall not constitute grounds for redress. This changes RRS 61.4(b).

## G9 The Finish

9.3 If, for any reason, the main committee vessel is unable to anchor in its correct finishing line position, the finishing line may be between a staff displaying a blue flag on a RIB (anchored where the main committee vessel would normally be) and a finishing mark. The main committee vessel may be close to either end of the finishing line but will not define the finishing line. It will be restricted in its ability to manoeuvre and shall be treated as an obstruction. The fact that this alternative finishing line is being used will be announced on VHF Chanel 72. Failure to receive this announcement shall not constitute grounds for redress. This changes RRS 61.4(b).
