All-Japan Middle Boat championships 2024 in Atami
Organizing Authority (OA): Japan Middle Boat Association
Approved by: Japan Sailing Federation (JSAF) (2024-02)
Managed by: All-Japan Middle Boat Championships 2024 Atami
Executive Committee
In conjunction with:
Shonan Ocean Racing Club
Misaki Ocean Racing Club
Miura Ocean Racing ClubTokyo Bay Ocean Racing Club
Aburatsubo Yacht Club (AYC)
Enoshima Yacht Club (EYC)*
Koajiro Yacht Club (KYC)
Seabonia Yacht Club (SYC)
Zushi Marina Yacht Club (ZMYC)
Hayama Marina Yacht Club (HMYC)
Moroiso Yacht Owners Club (MYOC)
Yokohama Bayside Marina Yacht Club (YBMYC)
Spa Marina Atami Co.
Supported by: Atami City
Dates: September 20 (Friday) to September 23 (Monday), 2024

Venue: Spa Marina Atami (Atami, Shizuoka Prefecture)

SAILING INSTRUCTIONS
Ver.20240917 Amenddment#2 (written in orange) 1.7, 5, 17.1, 18.1
Ver.20240911 Amendment#1 (written in red) 1.3, 3.2.4, 4.2, 6.2, 16.2, 16.3 18.1 20
1

RULES
1.1

The event is governed by the rules as defined in The Racing Rules of Sailing 2021-2024.

1.2

IRC Rules 2024 Part A.B.C shall apply.
1.2.1 Changes to the sails on board are permitted. (IRC Rule 21.1.5(d) and (e) will not apply.)

1.3

Offshore Special Regulations 2024-2025 Category 4 and OSR National Regulations shall apply.

1.4

The notation [NP] means that a boat may not protest another boat for a breach of the rule.
This changes rule 60.1(a).

1.5

The notation [SP] means the rules under which the Race Committee may apply standard
penalties without a hearing. Guidelines for these breaches and the associated penalties will
be posted on the official notice board. The Race Committee may also protest, in whichcase the penalty will be decided at the discretion of the Protest Committee after ahearing. For a standard penalty, scoring abbreviation “STP” will apply. This changes rules
63.1, Appendix A5 and A10.

1.6

Under World Sailing Development Rule DR21-01, change the definition Start as follows:

Start A boat starts when her hull having been entirely on the pre-start side of the starting line,and having complied with rule 30.1 if it applies, any part of her hull crosses the startingline from the pre-start side to the course side either(a) at or after her starting signal, or(b) during the last 1 minute before her starting signal.
1.7
2

If there is a conflict between the languages, Japanese text will take precedence.

Changes to Sailing Instructions
Any change to the sailing instructions will be posted before the Check-In time on the day
it will take effect, except that any change to the schedule of races will be posted by 1800
hr on the day before it will take effect.

3Communications
3.1

Official Notice Board will be on-line only and set up at www.racingrulesofsailing.org/
which can be accessed from following url or QR code.
URL︓https://www.racingrulesofsailing.org/documents/8914/event?name=2024-alljapan-middle-boat-championships-2024
QR code︓

3.2Communication with competitors
3.2.1 For communications from OA/RC to competitors, Line Open Chat will be used.
3.2.2 At least one person from each boat shall register on “All-Japan Middle 2024” Line
Open Chat through the QR code below.
3.2.3 When registering on the Line Open Chat, profile name shall be:「Boatʼs name Name」「Roll Name」（if you are an official）
3.2.4 Except in an emergency, boats shall not submit any message
on the Line Open Chat except when they are to meet the requirements of SI
17.1「Check-Out」, 17.2「DNC / Retirement」, 17.3「Check-In」

3.3

Race Office will be located at;
Atami onsen ryokan “TACHIBANA”
5-13 Showa-cho, Atami, Shizuoka 413-0022, Japan
TEL : 090-3222-2780 (Usuda: Event Chairman)
090-3348-9311 (Uchikura: Race Office Manager)
Dates and time open to enquiries by telephone call:
September 20 (Friday) 13.00 - 18.00
September 21 (Saturday) 07.00 - 18.00
September 22nd (Sunday) 07.00 - 18.00September 23rd (Monday) 08:00 - 17:00

3.4
4

While racing, a boat shall not communicate with the support team except in an emergency.

Signals Made Ashore
4.1

Signals made ashore will be displayed at the flagpole in the harbour.

4.2

When flag AP is displayed ashore, ʻ1 minuteʼ is replaced with ʻnot less than 60
minutesʼ in Race Signals AP. This changes rule Race Signals.

5

Schedule of Races
September 20
Friday13:00-18:00

Crew weigh-in

Race Office.

-18:00 Sail Inventory change

deadline
September 21
Saturday

07:00-08:30

Weigh-ine-Mail08:00-09:30

Check-out

Race Office

09:00-09:30

Skippers briefing

Race Office

10:25

First warning signal for

18:00-.

Welcome party

Inshore Race.

Supa Marina
special space.

September 22 07:00-08:00
Sunday09:25-

Check-out

e-MailWarning signal for
Distance Race

18:00-.

September 23 07:00-08:00

Owners' Conference

Race Office.

Check-out

e-MailMonday09:25-First warning signal for

16:00-.

Award Ceremony

Inshore Race.

Supa Marina
special space.

From Sep.22 onward weigh-in will be available at the Race Office.
5.1 The series is consist of 8 races（7 x Inshore Races and 1 x Distance Race）.
5.2 The number of races in a day will be at the discretion of RC.
5.3

The maximum number of races of Inshore Race in a day is 4.

5.4 On September 23 (Monday), no warning signal will be made after 14:00 hrs.
6 [NP] [DP] Class Flags and Identification Flags
6.1 The class flag is “JMBA” flag.
6.2 Each boat participating a race shall display “JMBA” (Japan Middle Boat Association)
flag on her stern (either on backstay, runner, stern pulpit or etc.) from the time ofLineオープンチャット

warning signal until her finish or retire. (JMBA flag will be supplied by OA atregistration.)
7 Racing Area
7.1 The racing area for Inshore Races will be in the water of off the Supa Marina Atami.
Approximate location of RC signal vessel for Inshore Races will be 35°07ʻ03.2”N,139°07ʼ35.2”E. However, this location is for reference only, and deviation shall not
be grounds for redress. This changes rule 62.1(a).
7.2

The racing area for Distance Race is shown in the Attachment 1.

8 Marks
8.1 The Marks 1 & 2 in Inshore Races will be yellow trapezoidal shape robotic marks (“Mark SetBot”: MSB) with “ENEOS” logo. Attachment 2 shows the appearance of the marks.
8.2 The marks in Distance Race will be a MSB located at 35°08'05.6"N 139°09'57.2"E off thecoast of Mitsuishi Rocks, and a MSB located at 35°15'54.5"N 139°16'37.9"E 100m south of
the Oiso South-West Hydrographic Observation Buoy. See Attachment 1.
8.3

Starting／Finishing marks are, when looking up windward, the Mark 2 on the port end ofthe line, and a MSB (the same shape as Mrak 2) with orange / blue flag on the starboard
end of the line. See Attachment 3.

8.4

New mark as provided in SI 11 will be green trapezoidal shape Robotic Marks (MSB) with
“ENEOS” logo. See Attachment 2.

9 Courses
9.1

The course for Inshore Races will be a Windward-Leeward course with 4 legs.

9.1.1 Each mark shall be rounded to port. (anticlockwise).
9.1.2 No later than the warning signal, the race committee signal vessel will display theapproximate compass bearing and distance of the first leg.
9.2 The diagram below shows the course, including the approximate angles between legs, theorder in which marks are to be passed, and the side on which each mark is to be left.
Start→Mark1→Mark2→Mark1→Finish
Mark1

Mark2
Start/Finish

RC Signal Vessel

9.3 Distance Race
9.3.1

Attachment 1 shows the course. Start → a MSB laid off the coast ofMitsuishi Rocks (to pass on port) → a MSB laid 100m south of the Oiso SouthWest Hydrographic Observation Buoy (to round to port) → a MSB laid off thecoast of Mitsuishi Rocks (to pass on starboard) → Finish. Approx. 30NM.

9.3.2

Starting / Finishing Line will be set approximately at 35°05'47.5"N, 139°05'
39.7" E. This location is for reference only and deviation shall not be grounds
for redress. This changes rule 62.1(a).

10 The Start
10.1 Races will be started using RRS 26.
10.2 The starting line is between a staff displaying an orange flag on the starting mark (MSB)
at the starboard end and the course side of the port-end starting mark (MSB). See
Attachment 3.
10.3 RC signaling vessel will station on the extension of starting line on the starboard end,
signal the staring procedures and observe any OCS. The vessel will not be anchoredbut this shall not be grounds for redress. This changes rule 62.1(a).
10.4 A boat that does not start within 4 minutes after her starting signal will be scored Did
Not Start (DNS) without a hearing. This changes RRS A5.1 and A5.2.
10.4 If any part of a boatʼs hull is on the course side of the starting line at her starting signal
and she is identified, the race committee will attempt to broadcast her sail number on
VHF Ch73. Failure to hail her number, failure of her to hear such a broadcast, or theorder in which boats are called will not be grounds for a request for redress. Thischanges rule 62.1(a).
11 Change of the next leg of the Course for Inshore Race
To change the next leg of the course, the race committee will lay a new mark (ormove the finishing line) and remove the original mark as soon as practicable. Whenin a subsequent change a new mark is replaced, it will be replaced by an originalmark. When signaling the change, race committee will display the new compass bearing
and the length of the leg. This changes rule 33(b)12 The Finish
12.1 The finishing line is between a staff displaying a blue flag on the finishing mark (MSB)
on the port end (looking from the course side) of the line, and the course side of thestarboard-end finishing mark (MSB). See Attachment 3.
12.2 RC signaling vessel will station on the extension of finishing line on the port end andobserve finishes of the boats. The vessel will not be anchored but this shall not begrounds for redress. This changes rule 62.1(a). See Attachment 3.
13 Penalty System
13.1

For Inshore Races, RRS 44.1 is changed so that Two-Turns Penalty is replaced with OneTurn Penalty for the incidents outside of the zone.

13.2 RRS 44.1 will apply without change for Distance Race.

13.3 When a boat starts in accordance with item (b) of the definition Start which is changed by
NoR1.6, she may return to the pre-start side of the line to comply with item (a) of thedefinition of Start, but, if she does not the starting penalty shall be a Time Penalty. 5%
shall be added to her elapsed time. To score such boat a scoring abbreviation “TPA” will beused.
14 Time Limits
14.1 Inshore Races
14.1.1

Mark１Time Limit, Race Time Limit（see rule 35 ）and Finish Window are

shown in the table below.
Mark 1 Time Limit

Race Time Limit

Finish Window

20 minutes

90 minutes

30 minutes

14.1.2 If no boat has passed the first mark within the Mark 1 Time Limit, the race will beabandoned
14.1.3 The Finishing Window is the time for boats to finish after the first boat sails thecourse and finishes
14.1.4 Boats failing to finish within the Finishing Window, and not subsequently retiring,penalized or given redress, will be scored Time Limit Expired (TLE) without ahearing. A boat scored TLE shall be scored points for the finishing place one morethan the points scored by the last boat that finished within the Finishing Window.
This changes rules 35, A5.1, A5.2 and A10.
14.2 Distance Race
14.2.1 Time Limit for Distance Race will be 16:00hr on 22 September (Sunday). Boats
failing to finish within this time will be scored DNF. This changes rules 35, A5.1
and A5.2.
15 Hearing Requests
15.1 The protest time limit is 90 minutes after the last boat finishes the last race of the day or therace committee signals no more racing today, whichever is later. The time will be posted on
the official notice board.
15.2 Hearing Request forms are available from the Official Notice Board on the RRS.org and shallbe submitted online within appropriate time limit. Only when internet connection is lost or
difficult, it may be submitted at the Race Office with the form available there in appropriate
time limit.
15.3 Notices will be posted no later than 30 minutes after the protest time limit to informcompetitors of hearings in which they are parties or named as witnesses. Hearings will beheld in the Protest Committee Room, located at Tachibana Ryokan, beginning at the time
posted.
16 Scoring
16.1 When five (5) or more Inshore Races have been completed, a boatʼs series score is thetotal of her Inshore Race scores excluding her worst score in Inshore Race and the scoreof Distance Race. This changes rule A2.
16.2 When less than five (5) Inshore Races have been completed, a boatʼs series score is thetotal of all her Inshore Race scores and the score of Distance Race.
16.3 Two (2) races are required to be completed to constitute a series.

17 Safety Regulations
17.1 ［SP］Check Out
Boats participating the races on the day shall check out by completing dedicatedform available from event web site and send it every day to the event secretariat email address( jmba2024.info@gmail.com ) no later than the time specified in NoR
8 “Schedule” .
17.2 [DP］DNC / Retirement form
Boats not racing on the day, boats checked out but decided not to race on the day or aboat that retired from a race shall notify so to “All-Japan Middle 2024” Line OpenChat, no later than the time specified in NoR 8 “Schedule” for boats not racing, or assoon as reasonably possible for others.
17.3 ［SP］ Check In
On returning ashore boats shall check in by reporting to “All-Japan Middle 2024” Line OpenChat within the protest time limit.
17.4 Rule 40.1 applies all time while racing. Competitors shall wear appropriate personal
floatation devices in a manner usable anytime while racing.
17.5 [DP] In case any collision, grounding, or break down occurred that resulted in injury oroverboard of the crew, or serious damage on the boat, the boat shall report Race Officeincluding the information specifying the date, time, names of persons involved and thecontact detail regardless any protest or request of redress are lodged.
18 [NP] [DP] [SP] Replacement of Crew or Equipment
18.1

Any addition or amendment of Check Out form and/or the crew registration lit shallbe submitted within the time specified in NoR.8 each racing day by sending to theevent secretariat e-mail address ( jmba2024.info@gmail.com ).

18.2

Replacement of the crew between the crew registered in the crew list is permitted.
However, replacement will not be allowed within a day, unless RC approves prior to
the replacement for a good reason.

18.3 In case a boat has become unable to meet the conditions of participation due to an
unexpected circumstance, such as illness, injury and etc. shall report Race Office assoon as reasonably possible.
19 [NP] [DP]Equipment and Measurement Checks
19.1 There will be no “Event Measurement” of the sails. However, sails may be inspected any
time during the event.
19.2 A boat or equipment may be inspected at any time for compliance with the class rules,
notice of race and sailing instructions. Boats may be instructed by a technicalcommittee inspector on the water to allow the inspector on board the boat for
inspection or to proceed to a designated area for inspection.
19.3 Every crew is required to weigh-in before participating a race and at that time produce anidentification with a face photo.
20 Official Vessels
RC signal vessel is a white 33ft motor boat “CYGUNUS Ⅲ” with JSAF ensign. Mark boats andPress boats are identified by a white event flag, and Jury & Inspector boat is identified by agrey flag with “JURY” letters.
21 [NP] [DP] Support Team
21.1 Support boats are required to register at the Race Office on the day before racing (boat type,boat name, person in charge, contact, Team name).
21.2 Support boats shall display identification flag supplied by the Race Office.
21.3 Support boats shall avoid the area where possibly affect the racing. Any breach of a rule bysupport boats may result in a penalty to the boat for which the support boat is supporting.

Attachment １
Distance Race Course
Start→ Mitsuishi Rocks MSB (to pass on port) → MSB 100m south of the Oiso South-WestHydrographic Observation Buoy (to round to port) → Mitsuishi Rocks MSB (to pass on starboard) →Finish

MSB 100m south of Oiso South-West Hydrographic Observation Buoy

Mitsuishi Rocks MSB

Off coast Atami
Starting / Finishing LineRC signaling vessel
Oiso South-West Hydrographic Observation Buoy

Attachment ２Marks（MSB）

Mark１and ２

New mark as provided in SI 11 .

(Starting / Finishing Marks）

Green trapezoidal shape robotic marks

Yellow trapezoidal shape robotic(MSB) with “ENEOS” logo.

marks (“Mark Set Bot”: MSB)

SeAttachment 2.

with “ENEOS” logo.

Attachment 3Starting LineThe starting line is between a staff displaying an orange flag on the starting mark(MSB) at the starboard end and the course side of the port-end starting mark(MSB).

Finishing LineThe finishing line is between a staff displaying a blue flag on the finishing mark(MSB) on the port end (looking from the course side) of the line, and the courseside of the starboard-end finishing mark (MSB).