Sail from Brisbane to Sydney

I’m writing this from Careel Bay in Sydney’s Pittwater after a two day sail from the Gold Coast Seaway. But sleep is pressing me and I’ll post more when I’m lucid.

Back again…

Here’s a map of Pittwater area and you can see Careel Bay just inside the heads. My view out of Current Sunshine is across to tree covered hills of Ku-ring-gai Chase National Park. Its a lovely mixture of town facilities on one side and bush on the other.

Steve at the helm. Negotiating shallows on the way to Gold Coast.
Steve at the helm. Negotiating shallows on the way to Gold Coast.

On Tuesday last the weather map showed settled north-easterlies for the next four days on the east coast. This was too good an opportunity to miss, so I merely had to mention the idea of sailing to Sydney tomorrow to Steve and Kev and they embraced the notion.  So we left Monty’s on Wednesday morning and sailed down to the Gold Coast.

Of course I wasn’t really ready for this – I had still lots of little projects to do, but I figured I could do them anywhere.  The vagabond of the sea, Bernard Moitessier, makes it clear that you never get everything done on the boat-list.  To try to do so is to never go anywhere.  So taking his advice we went anyway. One of the things that could be inconvenient was that the batteries were still not fully charged but a lot closer, and better balanced.  And we used up about a third of the capacity in getting out of the Caboolture River.

Getting to the Gold Coast involved more shallow water areas than I’d remembered and so we used up some more of our precious power.  Even though our initial plan was to go out through the seaway that night, we decided to anchor up overnight to get a good sleep, and to run the little genset to top up the engine batteries a little – in a way a small compensation for me not having finished the balancing that I had hoped to.

Bumpy ride on these waves - bow about to crash down into a trough.
Bumpy ride on these waves - bow about to crash down into a trough.

The Torqeedo performed well getting us out through the Gold Coast Seaway. There was an outgoing tide just starting and an onshore 10 knots breeze to push against.  The Torqeedo performed well against the wind-over tide rough water.  And the synchronised steering of the motor and rudder was comforting.

10 to 15 knots from the east gave us a boat speed of 9 to 13 knots until evening when the wind eased a little. She sails so easily on a reach and mostly around wind speed. Sailing into the night we took shifts three hours on and six off.  Luckily our rhythms matched nicely… Steve 9 to midnight, Kev nidnight to 3 am, cos he’s always still up at midnight and often in the early hours, and me doing the 3am to 6am because I’m often awake soon after that anyway, because of my early bedtime.

Sunset somewhere near Seal Rocks
Sunset somewhere near Seal Rocks

The next evening we were expecting slightly stronger winds, so we put two reefs in before dark. No sooner had we done that than the wind picked up and she was scooting along at 13 to 15 knots, and every now and then catching a wave and boosting the speed up to as much as 19 knots.  Kev was on the wheel  and with all three bows foaming as she raced down into the trough, couldn’t help wondering expletively loud if we had put in enough reefs after all. Over about 15 knots she starts to hum in a wild way that intensifies the speed sensation.  As if there was not enough adrenalin flowing already, he called for a can of red bull.

The waves settled after crossing into shallow water – the waves were steeper where the ocean changed depth from 1 kilometre back to about 200 metres.  Coming down past Port Stephens the wind eased and the for the rest of the night she loped a long nicely around 10 knots.

Lots of bulk carriers anchored in loneliness to the west of us, waiting to load coal at Newcastle. So close to port, and so close to each other, and yet keeping to themselves, waiting on the harbourmaster’s word.

As first light of dawn filters in, Steve is asleep on a bean bag in the cockpit, Kev asleep in the cabin. I can see the light of Barrenjoey headland – four flashes and then darkness, four flashes and darkness…  The chart describes the light as Fl (4) 20s 113m 19M. Despite having the GPS showing our position on the electronic chart plotter, its surprisingly comforting to see the actual light right where it should be, when we’re 19 miles away, and flashing four times every 20 seconds.

Kev cooks up a breakfast of scrambled eggs and tomato – such a simple breakfast and yet so delicious and energising after sailing through the night. Steve on wheel to take us into Broken Bay, and to his old stamping ground of Careel Bay, and Avalon Beach. We pick up a mooring arranged with the marina in Careel Bay – Steve works out that we took about 44 hours from Gold Coast to Broken Bay heads, and our speed averaged 8.5 knots.

Southerly change coming in over Pittwater
Southerly change coming in over Pittwater

Steve’s dad is there to meet us, and his offer of a hot shower can’t be refused. Round at their place he and Margaret make us welcome and ply us with tea, toast and croissants. The trip is done.  They drop me back at Current Sunshine to get some sleep – and soon enough Steve and Kev will fly back to Brisbane.

No sooner did I get back to the boat than the sky turned dark as I crashed.  Good timing huh.

For another perspective and more photos see Miki and Steve’s blog

Skid Steering

Balsa core flanges glass-epoxied to float.
Balsa core flanges glass-epoxied to float.

Here’s how I’ve mounted the little Torqeedo to the starboard float. The swivel bracket is taken from a spare bracket that Claude gave me. (Misadventure I think is the polite way of saying he dropped one in the drink.)  Its takes a bit of tinkering and some suitable epithets to undo it from the balsa core flanges – but it can be done.  So only the edges of the flanges will be presented to the waves when sailing fast.

View from aft
View from aft

When coming into a marina that has restricted manouvring room I can attach this quick-release swivel bracket, and then slide the Torqeedo into it.  Here’s how it looks attached.  The motor and shaft is attached first, and then the battery added.  So each item is quite light and easily handled – which should be handy on those days when the sea is sloppy.

With this additional thrust well offset from the main motor I’m hoping for a strong skid steering effect.  The little Torqeedo has the same prop (more or less) as the big one and so even though its a much smaller motor, its thrust should still be good, especially as it only has to turn the boat.  I’m looking forward to testing it soon.

Brackets still need fairing and painting.
Brackets still need fairing and painting.

I need to get about 5m of telephone cable to allow the throttle control to be positioned in the cockpit.  It may feel a bit odd because the throttle for the main motor is a fore-and-aft lever and for the 801 is a twist grip.

I can charge the battery using its standard mains charger by plugging it into my 300 watt inverter which handles it ok.  So even though its a roundabout path the energy sill comes from the sun.

Battery test (cont)

The next day (11 Dec) I continued with the discharge test and ran the motor from 5.30am at around 1000 to 1500 watts until after about 4 hours the low voltage alarm sounded. The cell with low voltage is not the same one that gave trouble before.

The low voltage showed up at a draw-down of 130 ah, which is 70 ah short of full capacity. I know that this cell was not brought up to full voltage at the last recharge. Only two cells got to full voltage and in my impatience to test the pack, I didn’t wait until all the cells protectors went red.  This result just confirms that the pack is unbalanced due to me leaving the cell protectors on some cells, and not on others, while I was in the boatyard. (There is small current needed by the cell protectors and so they slowly drain the cell when left connected.) So I need to recharge the pack  and make sure it is properly balanced by having all cells at full voltage.

For a few days I recharged the pack using sunshine, and then on 15 Dec borrowed a 48v charger from Claude Desjardins and pumped in about 70 ah until one the cells reached full voltage.  This 240v charger puts in 15a and this is way too much for the cell protectors to dissipate so I now have to continue the charging using solar.  The solar charger runs at between 1 and 2 amps depending on the state of charge of the house batteries (which it feeds off), and even this is a bit high for the cell protectors so it needs watching.

I also have an “automatic” dc-dc charger which I cobbled together using a voltage sensitive switch and a dc-dc converter.  This also runs at 1 to 2 amps but is intermittent. Switching on and off according to the house battery voltage.  The intermittence is just about right to give a nice trickle charge that the cell protectors can shunt.

This morning there are still only two cells that have reached full voltage and the pack has just about recovered the amphours used by the drawdown test.  As the day goes on I hope to see more cells ‘in the red’.

P.S.  I updated the history page with some photos.