21 JANUARY Nav Rally – Ross White Cup .. Entries close Jan 15th

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Notice of Nav Trial

Mordialloc Motor Yacht Club

Invites you to compete in the

“ Ross White Cup 2018 “

on Sunday Jan 21st 2018 from 10:00 am

In memory of the amazing 30 plus years as Secretary of our club by the late Ross White

Course  Instructions: The course is as published in the attached sheet

Start time: Official start time - 10:00 am on the 21st January 2018Individual boat Start-times will be issued by email to each entrant based on their nominated speeds five days prior to the event. Entries close Jan 15th 2018.

Finishing line The finishing line will be an imaginary line either side of the

finishing point S 38.01.103 and E 145.04.2613 This will be set perpendicular to the track from the last turning point, the final track line is from the final turning point to the finishing point detailed above.

Allowed aids Any combination of GPS or other navigational aids are

allowed however the use of coupled Autopilots for the trial is not encouraged as we believe steering and speed control  be manual for all entrants.

Communication MMYC radio station “Mordy base” will be monitoring on

VHF 73 & 27.91Mhz. All contestants must observe navigational rules, correct radio procedure and courteous boating practice. If you should need to contact Mordy Base, use your race number found on the back of  your GPS track logger on the water. Eg: “Mordy base..this is Nav trial MM5”

GPS Trackers: Your GPS Tracker will be available from the Club Rooms

from 8AM on the day of the event. For competitors who wish to collect and return their GPS Tracker on the water, they will be available from 9am from an easily identified MMYC vessel operating on the Nth side of the pier or by other means transmitted on the day

Entries: Entry is free but please note the conditions re security for issuing you with our GPS track loggers.

Presentation: We hope to be able to display the results calculated by

the tack tracker software live on a monitor in the clubrooms. The final result will be known very soon after   the last GPS track logger is returned and presentations will follow shortly after that. Each contestant will be advised by email and the results will be published on the Club  Website.

Contact:: Please contact nav rally coordinator Barry Matulick

on 0414364449 or email at barrymat2@gmail.com

regarding any queries you may have.

Course Instructions

# Rally Course for: Ross White Cup 21st  January 2018

Course Leg Distance (Nm)

Leg Bearing

Cum. Distance (Nm)

Latitude

Longitude

Start 38 01.363 S 145 04.913 E

Turn 1 0.438 181.4 0.438 38 01.800 S 145 04.900 E

Turn 2 0.585 267.6 1.023 38 01.825 S 145 04.159 E

Turn 3 0.85 180 1.873 38 02.674 S 145 04.159 E

Turn 4 0.756 91.1 2.629 38 02.688 S 145 05.118 E

Turn 5 0.595 179.1 3.224 38 03.282 S 145 05.131 E

Turn 6 1.267 271.9 4.491 38 03.240 S 145 03.524 E

Turn 7 1.389 317.9 5.879 38 02.210 S 145 02.343 E

Turn 8 0.763 268.5 6.642 38 02.230 S 145 01.375 E

Turn 9 0.788 8 7.43 38 01.450 S 145 01.515 E

Turn 10 1.233 20.1 8.664 38 00.293 S 145 02.053 E

Turn 11 1.526 92.5 10.19 38 00.361 S 145 03.986 E

Finish 0.774 163.7 10.964 38 01.103 S 145 04.261 E

MMYC Club NavRally Entry Form    Mail to  P.O. Box 5009 Mordialloc 3195 Fax to 9580 1522

Phone queries 0414364449 Barry Matulick Email: barrymat2@gmail.com

Using Tack Tracker on this Nav Trial

Log trials are a lot of fun for boating enthusiasts of all experience levels and size and speed of boat and a real test of navigational skill as well. The aim is to navigate around a course and be at the nominated points on the course exactly at the time you should be based on the speed you said you wanted to compete at. It may sound easy but it’s full of challenges to do it precisely, but fun no matter how good you are at it and there is always the BBQ and a beer at the clubhouse afterwards.

MMYC has invested in the Tack Tracker system so that not only Nav Trials like this can be run more easily and hence more often, without the need for any land based observers and timers but also for use by the sailing members for their regular races so they can see after the race their individual progress and position relative to the other boats over the entire race replay.

We have tried to make the nav trial as simple as possible for every level of experience, and to eliminate any disputes over timing or observer accuracy on the course, everything will be read from the GPS log tracker into the tack tracker nav trial software which then displays your exact position, bearing and speed

at each second of the course and whether or not you missed any "gates" we have provided all the detail you need to enter into your GPS in order to compete equally with everyone else.

We will give you the coordinates (in lat/long) of the start and finish point and as well the coordinates of each turning point to enter into your GPS.

Each entrant will be issued with a GPS log tracking device, these will be available for collection at the clubrooms from 8:00 am – 10:00 am on the day of the event. No boat can compete without the approved GPS log tracker as issued by the club

Each entrant must start at the issued start time and complete the course as detailed below. To be able to get the GPS device it will be necessary to sign a form accepting risk of damage or loss and also leave a deposit of an active credit card or driver’s license as security for its safe return, which will of course be returned when the GPS is returned safely to us after the race.

There will be a 2 minute gap between each entrants start time, so there should

not be any undue congestion at the start point or around the course. We would ask that only the boat starting and the next boat to start be within 300 metres to the north of the starting point/line to avoid any congestion for those seeking to “run up to the start”.

The entrant must ensure that the GPS log tracker is switched on and the third led indicator from the top is solid green (indicating it is logging your position) for the duration of the nav trial and in a position near the windscreen in view of the sky to receive the satellite signal …

Refer to the supplied instructional sheet for the GPS log tracker for a fuller explanation of each of the light indications, but as long as it’s in view of the satellite and powered on it will be recording your position from the moment you walk outside the clubrooms.

Do not switch the GPS log tracker off, just hand it in to the club after you have completed the nav trial. The battery will be fully charged when issued to you and the battery will operate the device for more than 30 hours but if you turn the GPS off by mistake then your timing will start again when you restart the unit and you will incur a lot of penalty points , but you will need to hold the power button down for 3 seconds to turn it off, so it will not happen by accident… we suggest that you don’t touch the power button, you don’t need to touch anything on the GPS tracker it will all be preset with everything running including your boat details when its handed to you.

Each GPS log tracker is numbered and this will become your race identification number and will be registered against your boat name and or boat rego once it’s issued to you. The GPS log tracker will be programmed with the details of the course, gates and start and finishing lines and points and registers exactly to the second when you go over the start/finish line, you should not cross the start line before your allocated time or your timing will start from that point if you do and you will then incur penalties.

On each leg of the course there are a number of “gates” programmed into the GPS software and your time passing thru those gates and turning around the turning points are recorded and penalty points are allocated as follows:

1 point for every second + or - of your required arrival time (provided to you by us) at each gate and if you do not pass thru a gate (because you were not

within the track tolerance to the next turning point) a penalty of 50 points for every gate, start gate and finishing gate missed.

There are no physical bouys or marks on the water to base your turn on, these need to be determined by reference to a GPS using the provided coordinates in the course data provided.

The en-route "gates" on each leg that are programmed into the route at various places are 50 metres wide. You will need to be on track to pass thru the gate and on time for the whole leg in order to avoid penalties but we strongly suggest that you do not just follow the boat ahead as they might be on the wrong track anyway.

The time system used will be GPS time so you will need to ensure you have your own GPS system and a time piece that’s is synchronised with the same GPS time which is determined by the atomic clock in the GPS satellite system so is very accurate and all GPS and the log trackers will be using the same GPS time. Note you will not be able to use the provided GPS log tracker to determine GPS time as it has no display it only internally records your position at every second.

Your allocated start time and your required time at each turning point (to the second) will be advised to you by email or SMS text message or both based on your nominated speed and your allocated start time (based on fastest boats first) a few days before the event.

In the event of extreme weather conditions or forecast we will endeavor to send you an SMS message cancelling the event before 8:00 am on the day of the event, but the final decision to go or no go is as usual your responsibility to decide as skipper of your boat.

If there are any questions about the nav trial please email me at barrymat2@gmail.com

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