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Fr azi
M
ag
ee ne
June 2020
‘MetBob’
on the
Jetstream
New Tech -
Going Electric
Calendar sponsor - Bay ITM
Trade Directory - Support the Locals
Spot the Yot
Monthly Quiz
Notice of AGM
2 | Tell Tales
IN THIS ISSUE... On the cover: Action at the start of PIC coastal
Classic 2019 -
Commodore’s Report...........................3 Entries open now for the 2020 Race
Nautical Quiz.......................................4 Advertise in Tell Tales
What’s on............................................5 ...and be seen by hundreds of people in Opua
Going Electric - by Pajo.....................6-7 and Paihia every month
Bob Mc Davitt.....................................8 1 year - $300 ($25 per advert)
Going Electric - by Yachting World.......9 6 months - $150
Not a Yottie - Jo’s Column...................12 3 months - $100
Calendar Sponsor - Bay ITM................13 1 month - $50
Trade Directory...............................14-15 Call Sheila on 09 402 6924
or email info@opuacruisingclub.co.nz
Full June Calendar...............................16
Editor’s Note
Hi Everyone,
Welcome life Post-Lockdown
We have a couple of articles on alternative power this month, One is extracted rom a Yacht-
ing World article on some amazing developments on high end and new boats. then we have
one from one of our liveaboard cruisers in Opua on how to do it for the rest of us, Pajo’s
article is probably more relavant to most of us. It seems to be a very popular subject at the
moment and definitely food for thought if you are looking at replacing or upgrading your
onboard power plant. Find more out at sailingcinderella.com
Also - news just in The PIC Coastal Classic Entries for October have now opened! Enter on
their website https://www.coastalclassic.co.nz/
Club archive - if you have any old photos or documents relating to the History of the
Cruising club please get in touch via the office with Sue Dunlop-Christie, we hope to have a
section on our website where we can share our history for anyone who is interested.
Trade Directory - in the last pages many of these businesses are now open again under Alert
Level 2.
Sailmakers, Upholstery, Marine Electricians, Rigging Experts, Home Building & Main-
tainance, Safety at Sea, Boat Builders, Boat Brokers, Mechanics, Chandlers, Moorings, &
General Yacht Services even Accomodation! It’s all there!
Don’t forget if you are a local business owner, people are using us more and more as a refer-
ence to find trades & services. Not only boat related.
Chur, Kerry
SPOT THE YOT - LET US KNOW WHAT YOU THINK OF TELLTALES AND WIN!
Well done Steve O’Brien this month’s winner, who spotted the ‘yot’ in the
Great Escape ad last month - Call into Burnsco and collect your prize from Nick.
Another 20 litre dry bag is up for grabs this month.
All you have to do is email info@opuacruisingclub.co.nz call us on 09 402 6924 or message
us on Facebook
Let us know whose advert you have found the little yacht in as well as what you like
best about our monthly newsletter before June 25th to go in the draw to win. We
really apprecite the feedback, it lets us know what you value about the information
we include in TellTales every month.
The winner will be announced in the July issue.
Tell Tales | 3
COMMODORE’S REPORT Chris Williams
Hi all and welcome back
As you may know the club is back open for business. We have gone back to winter hours Wednes-
day through Sunday opening at 4.30pm, obviously we will have the level two rules for the next
month at least so please sign in at the door. As per the rules we will be providing table service so
just head in, take your seats and someone will be out to see you and take your orders.
It has been nice to see the regulars back enjoying our facilities and a few of the cruisers that have
remained in Opua popping down as well.
As we head into the winter months with only Sunday races please remember there are still activi-
ties going on, darts will be starting back on Wednesday nights very shortly along with quiz nights
and bingo please check facebook or web page for the most up to date events and hey who can
forget Friday’s Happy Hour, my personal favourite.
On that note our supplier DB breweries has provided us with some excellent deals to help us get
up and running so keep your eyes on our facebook page for further details.
I need to mention that this month we will be having our AGM on Tuesday the 23rd of June . It
would be really good to have as many members present as possible so mark the date. All but one
of the current committee will be there and remember that as members this is the time to select
who is on the committee, hear how the club is going, voice any concerns and ask questions, we
are always here to listen to your suggestions and recommendations. Myself especially would like
to see people turn up with constructive ideas and positive solutions. Nominations forms will be at
the bar so please fill them out and put them in the box.
On this note the membership year is about to end and you will need
to renew your memberships in July, the membership form is avail-
able online or at the bar. We are also trying to remind everyone the
value of your membership card when you preload it and use it at the
bar. You can get up to a 10% further discount with a full member-
ship and also save at the Galley Bistro in the Club.
Last but not least. When I write these reports I’m often curious as
to who is reading them and would like to suggest that if you are
reading this please go on our facebook page, like it, and please leave
a comment about your favourite thing in our tell tales magazine, or
if there is anything you would like added to it. I may even dig out
some beer/wine vouchers to give away for the best suggestions.
Thanks
Chris Williams
Commodore
4 | Tell Tales
Nautical Nowledge QUIZ #20
Test your crew!! Test yourself with these five quick questions.
1. The direction to the geographic North Pole is known as
a. Magnetic North
b. True North
c. Pole North
d. None of the above
2. A line on a small dinghy used to tie to the main boat is call the …
a. Mooring line
b. Anchor line
c. Bow line
d. Painter
3. On what VHF channel should a mayday be made in the Bay of Islands?
a. 63 Russell Radio
b. 16 Marine distress channel
04 Coastguard
19 Weather
4. Slab reefing is?
a. Turning the boat into the wind and raising the mainsail
b. Turning the boat away from the wind and raising the jib sail
c. Lowering the mainsail partially to reduce size when wind strength increases
d. Raising the mainsail to full height when the wind is low
5. Which boat gives way1? (Both boats on port tack)
a. Boat A
b. Boat B
To expand your knowledge of sailing theory, take the free eLearning courses at International Yacht
Training. https://www.iytworld.com/courses/course-types/elearning/
There is also a fun quiz at https://safe-skipper.com/rules-road-quiz-60-second-challenge/
1
Pic https://safe-skipper.com/rules-road-quiz-60-second-challenge/
Answers on page 8
Tell Tales | 5
Social - > June
Darts every Wednesday - bring your own darts or be prepared to saniitize.
Bingo with Jo Thursday 4th - bring your own pens or be prepared to sanitize
Quiz night
Thursday 18th - 1930 start.
Sue, Ann & Brian are in charge this month.
Come with a team or join one on the night.
Be prepared for questions on all sorts from your Quizmasters.
AGM
Tues 23rd - Time TBC
Get your nominations in for any committee positions you’d like to fill. Forms will
be available on the bar and the website for download
RACING David Krebs Pics by Vera
OCC is back up racing, with the first race on Sunday 24th May for those brave crews that
didn’t mind a bit of rain in the 2 sail series.
1st Buzz
2nd Sensation
3rd E-Nine (RBC).
Next race is NSR on 7 June. If anyone is wanting more racing, and your boats are not
covered in barnacles after lock down... let us know what would suit.
Cheers, David.
6 | Tell Tales
THE CASE FOR GOING ELECTRIC
Hugo Boss and Alex Thomson went electric.
If Southern Ocean race boats trust electric propulsion systems on nonstop ‘round the
world’ voyages, that’s saying something.
It’s the future. It allows sailors to
focus on that thing they are there to
enjoy.
THE SAILING! No more maintenance,
no foul odours, no winterisations,
can it really be?
Yes, yes it can! I know because we’ve
done it. Over 3 years and 12000
nautical miles racing and cruising
on electric propulsion aboard SV
Cinderella.
Electric for The Race Yacht
The vast majority of racing yachts are only really concerned with day sails and after-
noon races. Perhaps with the occasional weekend aboard. After a day around the buoys
or an evening run around the marks, most yachts
will return to their respective berths nearby. They
can simply plug in and charge back up for tomor-
row. No jerry can, no fuel dock, no spills, no noise,
and no hassle.
Beyond the obvious lack of engine maintenance
and environmental benefits, there are a few other
benefits that make electric propulsion superior.
Improved weight placement, low cost, and
improved maneuverability
Improved weight placement
No longer must we put the weight of the propul-
sion system so far aft or in awkward locations.
The electric motor drive aboard Cinderella is
about the size of a melon and weight 35 lbs.
The batteries can be placed forward under set-
tees or in the old (now free) engine compartment
for optimum yacht trim.
Tell Tales | 7
REPOWERING YOUR RACING YACHT
Pajo Gazibara
Low cost
An electric drive system kit from Thunderstruck motors can cost as little as
US$1500! From there all you will need is a set (4) of quality deep cycle lead acid bat-
teries and a battery monitor. System complete, all for just over US$2000.
What is the cost of a new Diesel Engine?
When you remove and physically see the pile of parts that are required for a marine
diesel engine to function, you will soon realize where the BOAT acronym came from.
All of those pieces fail, and none of them are inexpensive to replace.
We are talking about racing yachts after all, we have them so we can go SAILING!
Improved Maneuverability
Electric motors have nearly all of their torque whether you spin them at 1 RPM or
3000 RPM. Most internal combustion engines can’t produce any torque until they
spin at least 500 RPM.
Close quarters maneuvering is massively enhanced when one has complete control
at the twist of a knob.
Electric Propulsion is the future of Racing Yachts
Electric propulsion is cost effective, maintenance free and allows for better yacht
trim, and gives the skipper improved maneuverability in close quarters. All of this is
just icing on the cake when you consider the benefit to the marine environment.
We love the electric drive onboard our racer/cruiser Cinderella. We love the extra
space in the cabin, the lack of diesel fumes, the lack of noise, and the lack of main-
tenance. We love that the system is scalable. And we love that battery technology
continues to become more affordable.
Written by Pajo Gazibara, Captain of
SV Cinderella, the electric yacht from
Seattle, WA USA
We offer our projects open source
to the sailing community. Find out
more about our electric conversion
sailingcinderella.com and get in
touch if you want to talk about
converting your boat to electric
propulsion.
Sailing Cinderella is a sandbox where we will continue to test and promote sustain-
able cruising. Our goal is to help other boaters move toward renewable energy
systems and decrease our impact on the planet.
8 | Tell Tales
BOB MCDAVITT’S WEATHER CORNER
Bob McDavitt is the weather guru that uses
/\/\etBoB to provide weather information for
cruising sailors, primarily for those in the South Pacific.
If you are having problems with working out where and when the systems on the (surface-based) weather map are
going next, then it is worthwhile to check out the jetstream.
Jetstreams are rivers of wind found in the upper atmosphere where jets fly. They snake eastwards around the earth
faster the earth’s normal eastward rotation, and often look like large waves marking passing troughs, and sometimes
can have small buckles that play with the local weather below.
On average, there are TWO mains jetstreams affecting NZ weather-- the polar jet that is sometimes south of us and
sometimes on top of us, especially when we have passing troughs. The other is a subtropical jet, sometimes just to north
of us, but sometimes on top of us, especially when anything come to NZ from the tropics.
Jetstreams can tell us about development (invigoration) and decay (weakening) of surface weather.
In the southern hemisphere, expect development at the surface slightly north of a jetstream- entrance and south of
jetstream-exit. Expect decay at the surface slightly south of a jetstream-entrance and north of a jetstream-exit.
As for a steering field for surface features, well, there are stagnant areas in the jetstream which indicate where surface
weather may be stalling. However, for a better surface-steering indicator, go to windy,com and dial that height/altitude
bar to around 850 maybe 800 or 700hpa.
An interesting feature that occasionally occurs with jet streams are what we call Omega Blocks. These is when the jet
splits into a pattern that looks like the Greek capital letter “Omega” (an upside-down omega in the southern
hemisphere). They are caused by two cut-off lows and a blocked high in between, staying in places for days, sometimes
a week or more.
(thanks to
www.weather.gov/jetstream/basic
for this image - the website also
describes other basic jetstream
patterns, including the REX BLOCK-
an interesting pattern that has, in
part, upper easterly winds- rather
rare)
ANSWERS TO QUIZ from page 4
1.B True North 2.D Painter 3.B For urgent marine assistance use Channel 16
4.C Lowering the mainsail partially to reduce size when wind strength increases
5.B Windward boat keeps clear
Tell Tales | 9
GOING ELECTRIC - FOR SUPERYACHTS
Toby Hodges - Yachting World May 2020
Torqeedo and Oceanvolt have led this drive so far, with Volvo Penta now ramping up its
electromobility technology. And although Torqeedo has already delivered 100,000 electric
drives, this represents only a small fraction of the market, according to CEO Dr Christoph
Ballin.
“So far, only about 1.3% of marine propulsion systems are electric… we need to put the foot
down and do more,” he states. Over the next decade, Ballin sees serial hybrid power as the
optimum solution for yachts, systems that involve a large battery bank with a mix of solar
and hydro power generation. This reduces the CO2 footprint by around 90%, but with the
safety net of a ‘diesel range extender’ – a compact generator, says Ballin.
Moonwave (pictured below) is a Gunboat 60 recently refitted with the latest generation of
Torqeedo’s Deep Blue
electric drive system
Such a system caters for
normal sailing and living
requirements using only
battery power. “The role
of the generator is reduced
from providing everyday
energy for living on board
(heating, cooking, wash-
ing, aircon) to emergency
use, if you will. And the role of the combustion engine for driving the boat is completely
eliminated.”
But what about hydrogeneration? Combined with enough solar panels, surely this will
enable us to dispense with fossil fuels on board altogether? “I fully agree, hydrogeneration
in terms of using the propeller to create power under sail is one thing that is here to stay,”
Ballin believes.
ZF steerable saildrives are being integrated with Torqeedo systems for hydrogeneration
But it is dependent on the speed and size of the vessel. He points out that if you have a fast
boat you can generate all the electricity you need while sailing: “We have a customer with
Gunboat 60 which generates 10-15kW”.
Battery storage “The limitation here,” points out Ballin, “is how much energy you can
store in a battery, because of the energy density that batteries offer.” Torqeedo’s Deep Blue
technology and use of BMW’s i3 high voltage lithium-ion batteries gives it an edge on com-
petitors.
But is the reliance on lithium batteries as a ‘clean’ source of energy storage simply solving
one problem by adding another? The questionable mining ethics surrounding the cobalt
used in many lithium batteries has been widely reported and the question of battery recy-
cling still remains unanswered.
Ballin foresees supply chains becoming more ethical from a human rights standpoint. He
explains that BMW is now controlling the entire supply chain for its batteries, including
sourcing the raw materials, to avoid inhumane working conditions.
This makes for another whole topic, as does the recycling issue, to which Ballin alludes to
10 | Tell Tales
JETSTREAMS CONT’D FROM PAGE 8 ‘MetBob’ McDavitt
An interesting jetstream pattern is being set up for NZ at the weekend I’m writing this piece, it’ll be history when you
read this. Here is a graphic from windy.com-- a great website for watching the jetstream. There is bar to the bottom
right for height/altltude– toggle the pointer to around 300-250 maybe 200mb/hPa for the best looking jetstream map)
(from windy.com, a prognosis for Monday 18 May)
Colours are upper winds, surface isobars are included as white lines.
It’s not an omega block and the subtropical jet is doing its own thing.
The Polar jet is buckled with a weakish EASTERLY jet over central NZ. (Remember, upper easterly winds are rare -- they
are less than the earth’s rotation). It creates two stagnant zones where the surface weather feature stalls, one over
norther North island and the other over southern South Island.
Of course, all this may change in the mix of pattern and chaos which makes weather-watching so interesting.
Bob McDavitt, bobmcdavitt@hotmail.com and bob@metbob.com
GOING ELECTRIC - FOR SUPERYACHTS CONT’D FROM P 9
potential for a second life for marine batteries in powerwalls and energy storage before they
go into any recycling for cobalt extraction. “We are in front of the largest mobility revolu-
tion since the introduction of combustion engines,” Ballin states. “We have to live with the
fact that the stages in this transformation programme are all imperfect – and will be for
more than ten years.”
Looking ahead, Ballin sees three key scenarios for what is possible for climate neutrality on
boats: battery electric vehicles; hydrogen-power; and synthetic fuels. “The rule for sailors I
think will be that wherever battery electric vehicles are feasible those are the preferred ways
to go forward.
“If battery electric vehicles do not give you enough power, which is almost always the case
for oceangoing vessels, then you can go to hydrogen for example… It will become main-
stream to have a climate-neutral range extender.”
Hydrogen power So could hydrogen be the holy grail of energy for yachts? Hydrogen fuel
cells work by converting hydrogen (from seawater) to positive and negative electron charges.
So far this process has been used as an energy source only by a few pioneering vessels, includ-
ing Energy Observer, first energy autonomous hydrogen boat to circumnavigate. And Race
for Water, a solar and kite-powered multihull carrying a conservative amount of hydrogen
(200kg) in 25 bottles, is currently three quarters of the way round the world.Tell Tales | 11
GOING ELECTRIC - FOR SUPERYACHTS
Toby Hodges - Yachting World May 2020
Solo racing sailor Phil Sharp has been demonstrating a hydrogen fuel cell in place of a diesel
engine to generate power aboard his Class 40 OceansLab. He believes larger scale commer-
cial shipping and marine craft can adopt the technology to reduce their carbon emissions to
zero.
For leisure yachts, however, hydrogen fuel cells are not yet economically feasible. Torqeedo’s
Ballin explains the practical limitations: “The energy density of hydrogen per kg is a lot bet-
ter than petrol or diesel, but the volumetric energy density is about 1/13th of diesel.” This
means much larger fuel tanks are necessary – although these volumes can be reduced under
pressure.
That helps to explain why hydrogen has been adopted by only a handful of (large) yachts
thus far. A pioneer of the technology is Daedalus Yachts, which is midway through building
the first hydrogen-powered superyacht. “Over the past 2 years we have conceived & devel-
oped not only a complete hydrogen electric marine propulsion system, also a clean energy
micro grid with the only emissions being oxygen & pure water,” says founder Michael
Reardon.
The 88ft catamaran is being built to full commercial survey for world cruising for vision-
ary Stephan Muff, who created the technology for Google Maps. The Daedalus electrolyser
(which converts water to hydrogen) is the same as has been used in US spaceships and
NATO submarines, so the North Carolina company is quietly confident it’s onto a reliable
power source.
For the shorter term however, sailors should look to solar and battery technology, where we
can assume continued improvements in efficiency and capacity for reduced costs. Building
photovoltaic cells into biminis, decks, masts, and sails is already feasible.
This extract is from an article published in Yachting World May 2020 about renewable options for
Yachts.
https://www.yachtingworld.com/features/future-yachting-smart-technology-12613612 | Tell Tales NOT A YOTTIE We’re nearly out of lockdown, YAY. The Cruising Club is now open for food and drinks, obviously with social distancing, it’s so lovely to be getting back to somewhere near a normal way of life once again. The Marina Café is also open for morning coffee and breakfast, and dinners on Thurs- day, Friday and Saturday from 5 o’clock, that’s the new normal. I don’t know what the dinner menu looks like yet but it’s bound to be yummy. Give them a call to book your table. People are back to work in the marina, and boat owners getting rid of their withdrawal symptoms are coming back to inspect their water borne beauties. Sunday 24th May and it’s the first Sunday Race since lockdown started all those weeks ago. It’s really great to see the yachts and launches on the move once more and the little dinghies chasing up and down the waterways. The boatyard has got plenty of work to be going on with a backlog of the lockdown. We just need the Kiwi tourists up here now to give a much needed boost to our local economy. It’s so good to be able to do my own shopping once again. Being counted in and out, hand sanitizer, the shopping trolley handles have been cleaned, and we can’t take our own shopping bags into the store so no cross contamination there and because of being counted in and out of the store all shoppers were able to physical distance themselves in the one way system that had been devised. The drive up to Kerikeri and back was such a surprise – Autumn arrived when I wasn’t looking! The trees are gorgeous with their bright colours and some trees had lost their leaves altogether. Not a lot of traffic either and the bonus was that the Egg Farm and Honey and Avocado shops were all open for business. The first really lovely happening for me was my Mothers day lunch with my Opua family. After their 14 day isolation period we’d been able to join our bub- bles. So lovely to have a hug and share a meal in their home once again. The next special thing was a call from my daughter in Coatesville to ask if she could stay with me for a few days. She’s a project manager and would be working from my home from about 8 o’clock in the mornings and then from mid afternoon we’d be able to go shopping or walking and just spending time together. I’m so very lucky with my family. Keep well, cheers from Jo
Tell Tales | 13
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14 | Tell Tales
TRADE DIRECTORY
Please support our sponsors
Without the kind support of all our advertisers and sponsors,
the OCC simply wouldn’t be able to produce this magazine.
So, please show your support in return, use the products and services advertised in
Tell Tales whenever possible. Make sure you tell them you found them here
Thanks!
OPUA 2012
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Unit 1, 15 Baffin Street, Opua Marine ParkTell Tales | 15
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W: www.willissails.co.nz • E: info@willissails.co.nzMonday Tuesday Wednesday
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16 | Tell Tales
Check the online calendar at www.opuacruisingclub.co.nz/events for the latest information on all eventsYou can also read
