Sailing Instructions

2018 Duwamish Head Sailing Instructions

(rev 11/28/2017)


Three Three Point Yacht Club January 6, 2018 

Duwamish Head Race Registration


Rules: See Southern Sound Series Sailing Instructions by clicking HERE!


Notices to Competitors: Notices to competitors or changes to the Sailing Instructions will be posted on this website, . 


Signals Made Ashore: Signals made ashore will be displayed at the end of the Des Moines fishing pier or on the Race Committee Boat.



Start in a northerly direction between an offshore orange mark and an RC flag on the Des Moines Marina fishing pier, leaving the green navigation buoy to starboard. Leave the Duwamish Head Light and Blakely Rock Light to port.   Finish in a southerly direction between offshore orange mark and the RC flag at the end of the Des Moines Pier, keeping the green navigation buoy to port


IMPORTANT NOTE: The green buoy is a limit mark, DO NOT sail between the pier and the green navigation buoy when starting or finishing.


Shortened Course: The race may be shortened at Duwamish Head Light or Blakely Rock Light by the official Committee Boat. Please watch for the RC flag and Shortened Course flag. The time limit will be changed to 10 hours if the race is shortened.



The warning signal is the raising of the class pennant(s) or flag
Cruising and Commodore Classes (C flag)Warning Signal: 0925
Class 8 and 9 (8 & 9 Pennants)Warning Signal: 0955
Class 6 and 7 (6 & 7 Pennants)Warning Signal: 1000
Class 4 and 5 (4 & 5 Pennants)Warning Signal: 1005
Class 2 and 3 (2 & 3 Pennants)Warning Signal: 1010
Class 1 (1 Pennant, Multi-hulls)Warning Signal: 1015
IRC Class (0 Pennant)Warning Signal: 1020



The start will be broadcast on channel 72.   All boats are expected to monitor VHF channels 72 and 16 during the race.

Except in an emergency or when checking in before start or when finishing after dark, a boat shall neither make radio transmissions while racing nor receive radio communications not available to all boats. This restriction also applies to mobile telephones.

When finishing after dark, please alert the RC on Channel 72 you are approaching the line.

Race Committee cell phone on day of race will be 360.402.0312


Protests: Protests can be emailed to or placed in the box under the bulletin board outside of Des Moines Anthony’s, as noted in the race handbook or mailed to:

Attn: Protest Committee Three Tree Point Yacht Club PO Box 98700 Des Moines WA 98198-0700


Contact Information: See the TTPYC site or contact Chuck Hendrick 360-402-0312,


Duwamish Head Race Registration


2002 Revision

As adopted by the Shilshole Bay, Sloop Tavern, Corinthian, and Seattle Yacht Clubs.

We must share Puget Sound with its commercial traffic, including many deep-water vessels and tows. It is sobering to note that, if your boat is one mile dead-ahead of a freighter coming down the Sound at normal speed, and the freighter’s helm is put hard over to avoid you, the freighter’s bow will miss you, but her stern will not! Obviously, this implies that early and decisive action is required to keep your boat out of the path of a large oncoming vessel or tow.

    1. Yachts must not sail across a tow line, too close ahead, or too close alongside of commercial traffic. Deep water vessels have limited ability to change course and speed. Barges under tow can yaw unexpectedly well out to the side at speeds essentially the same as they are being towed. Yachts should not pass less than one mile ahead and 1/4 mile to the side of large vessels.
    2. Rule 10 of the International and Inland Rules to Prevent Collisions at Sea (COLREGS) requires that no power-driven vessel less than 20 meters (66 feet) in length, and no sailing vessel (of any size) may impede the safe passage of a power-driven vessel following a Vessel Traffic System (VTS) Lane.
    3. Rule 9 of the COLREGS requires that no power vessel of less than 20 meters (66 feet) in length and no sailing vessel (of any length) shall impede the safe passage of any vessel which can navigate only within a narrow channel or fairway. Puget Sound can be considered a “narrow channel” for most large commercial traffic. “Impede” means to cause to alter speed or course or to take evasive action.
    4. A yacht in position where it may impede commercial traffic must exit from the “danger area” immediately, under auxiliary power if necessary. If power is used, it must be reported to the Race Committee at the finish line. Also, a written report must be made on a protest form, showing the location, time, duration of power use, speed, direction of exit, and that the competitive position of the yacht was not improved. If the last item cannot be demonstrated adequately, a time penalty may be imposed.
    5. Radar reflectors must be flown at all times when racing. They must meet IMO recommendations (i.e., of metal plates of sufficient rigidity to maintain a 90 degree angle), be not less than 12 1/2 inches in diameter, and be installed not less than 4 meters (13 ft.) above the water. See PIYA Special Regulations paragraph 3.8.
    6. Navigation lights must be shown between sunset and sunrise as required by the International Rules of the Road.
    7. Observed and/or reported violations of the safety regulations may be protested. The Race Committee shall have the option of issuing a “warning” when deemed appropriate. Warnings are recorded and may be considered when judging any future reports.