June 18, 2013

Changing Seasons = boat chores


Saying goodbye happens more in this life than most--but at least we know we'll see these wonderful people again someday
The other day, as I made dinner, our boat rang out with giggles and a familiar French/English conversation. A few hours later Maia cried herself to sleep after yet another goodbye—her sweet friends Cami and Rose (and their fab parents JF and Melanie) are on their way back to Quebec. The family that we first met in Nuku Hiva has sold Dorénavant and after four years they’re headed home.



I feel like I write endlessly about how the currents of this lifestyle carry people in and out of our lives. Part of coming to Australia was to take a break from the goodbyes—but of course just because we might stay in one place doesn’t mean the people around us will.

If anything staying here has made the goodbyes even more poignant: we don’t have the lure of the new and next to take the sting out of the final hugs. Instead we are rediscovering what it means to be in one place while life swirls past. We’re becoming reacquainted with seasonal rhythms (as much as Australia has seasonal rhythms, or seasons…). Though I’m not sure we call them summer or winter yet.
 
Ev's in the locker scrubbing while Maia and Charlie sort the stuff. See our nice new anchor in there? It's to replace the one that bent in 80 knots of wind...
Instead as the rainy season has eased to the dry season, it’s time to clean out lockers, wash away mildew and replace our sun/rain awning.
 
moss, rust and rips--I think the awning was done

Yes that is moss, or maybe it’s some sort of weird mildew. And yes, the stainless grommets we paid extra for have dissolved into rust. And oh, yes the last big squall kind of did it in. And it leaks. So using some fabric we bought (I think) in Mexico (for something??) and some snazzy vinyl glue we’ve tried a new method to build the awning. We’ll let you know how it works out. The plus is it only took a couple of hours to make.


While other boats finish up their chores and head off for their next adventure, it’s time for us to install new halyards, paint the bottom and re-bed leaking stanchions.
 
mildew and rust--sure signs of a leak
 

This one had a few bad things happen to it—note the bend… Initially snugging it up was enough to keep it from leaking, but the pile of mildewed books I found at its base confirms it was time for a more thorough repair. And as the winter days grow shorter, it’s also time to re-evaluate our solar panels and battery bank and make sure we have enough wattage to get through each day.

It’s also been time to say goodbye to the last of transient cruisers, and those who were selling their boats. And it’s been time to dig into the life we’ve been building here while also pondering the ‘what’s next’? We’re not actively cruising but we haven’t shrugged off that entire lifestyle either. Instead we live in a strange hybrid world where our boat is our insistent home but each day when we wake up in the same place, to the same routine, it still feels novel and new.

June 3, 2013

Sydney Siding


Cartwheeling around the World
Sydney is roughly a 1000 km from Brisbane. I mention this because one of the questions we’re frequently asked is whether or not we’ve been there. Or to Melbourne (1700 km), Adelaide (2100 km), Perth (4500 km) or Alice Springs (2600 km). The expectation is maybe we took a weekend jaunt by boat when no one was paying attention (well maybe not to Alice Springs). But at our typical cruising speed (if we could cut a few capes and sail as the crow flies) it would take us three weeks of non-stop sailing (provided we don’t get hung up on a mountain range) to reach Perth—the same length of time it took us to sail across the Pacific to the Marquesas.
 
Bondi Beach
Strolling through the Botanical Garden
Australia is big. Which means we probably won’t be seeing much of it by boat…

 
But our hope, thanks to a crazy invention called an aeroplane, is we’ll still get see as much of the country as our budget will allow. Which is how we ended up in Sydney. Evan was there to check out Vivid for work. Maia and I were lucky to tag along.

The city was lit up with images and lights for Vivid


Arriving in the midst of a view that you’ve seen a million times is one of the things I love about travel. No matter how many times I’d seen it in postcards, movies or on TV climbing the Opera House steps and looking out at the Bridge was enough to take my breath away. Actually, it was enough to make me trip and slice open my toe. And after I sorted out that I hadn’t broken the camera while a kind local thrust Dora bandaids at me and whispered I was missing part of my toe and might need a doctor, I quickly got Maia to move in front of the bridge so I could get her picture. Just in case I had to spend the rest of our trip in the ER…

Happily I think I cut through my toe’s nerves—so once it was taped up I never really felt it and decided to skip stitches and save worrying about it for a more convenient time. We spent the next two days hobbling through the city—admiring the mix of old sandstone, modern glass, gorgeous green spaces and cool creatures.
 
Fun with cockatoos
 

Maia fell in love with the museums—or one museum in particular. We made two visits to the Powerhouse Museum, a museum which defies description and categorization but still managed to bring together the Wiggles and the International Space Station in a cohesive way.


Maia and Sirena fulfill a dream and drive the Big Red Car

The last two days of our visit were spent with our wonderful US/Mexico cruising friends from Orca in their home on a river that looked (and felt!) more like the Pacific North West than I could have imagined. Then it was back on a plane, back to Brizzie and back to dreaming about the ‘where next’ in our life.

May 23, 2013

Return Voyages


sunset on Moreton Bay
Somewhere in one of Paul Theroux’s books is a quote I meant to record, before I lost it (the book, and quote…). To paraphrase from faulty memory, he said that the feeling of leaving a place before you’re ready, before you’ve seen and done all you hoped to do, is what gives us the urge to travel: If we’re never quite satisfied, we’ll want to go back.



return trip to Springbrook National Park

We’ve spent the past few years caught between the drive to go back and the siren song of moving on. And when the world is so big, and so fascinating, who has time to visit the same place twice? No matter how compelling it is.

But over the past few months we’ve had a chance to savour the sweetness of visiting the same wondrous places more than once. The first time, when it’s shiny and novel, it seems like you memory only sketches an outline, it’s hard to see the detail.
 
Exploring Tangalooma on Moreton Island


But now that we’ve had repeat trips to Springbrook and out sailing on Moreton Bay I realize how much detail we must have missed along our journey. How many trails we never got to hike, how many view points stayed just out of reach.

There is a sweetness to seeing something new, but there is a richness in getting to see things again.

April 27, 2013

Regalvanizing-from A to Zinc


rusty chain--some links are in better shape than others
If you’re not a boater, a rusty anchor chain probably isn’t that exciting a thing to contemplate. But when those rusty links are the link between your boat and your anchor (a piece of equipment that is easily one of the most important items on a boat, or under a boat) the rust gets personal.

Chain is expensive stuff—and in recent years, because of increased costs, the protective zinc coating found on chain has become thinner. This means that unless you are diligent about washing down your chain, end for end it as it shows wear, and touch it up with a wire brush and zinc paint when the first spots of rust do show up, before you know it you’ll have a rusty ball of chain in your anchor locker.
 
take your chain for a drive
Or at least we did. Our chain is about 5 years old. Not that old in the boating world—but a few years of constant use, followed by a year in the anchor locker meant that our chain was rapidly approaching the cut-off point between salvageable and garbage. Although surface rust, even if it’s a bit flakey, isn’t the end of the world for chain-but you do need to remove heavy rust to have chain regalvanized.

As a guideline you should toss rusty chain if:
- Wear exceeds 10% of a link diameter (check where the links connect).
- The chain is cut, nicked, cracked, gouged, or pitted.
- It’s distorted, twisted, bent or stretched.
- You don’t know its history, including how many times it’s been regalvanized.

If you got around to regalvanizing before we did and the surface rust was fairly light (indicating you still have some zinc coating left) you can probably send it straight for regalvanizing without prep. If you have more rust then you’ll need to look at sandblasting, which is normally hugely expensive, unless you try a version of poor mans sand blasting.
 
bare metal after 10 km--we were still able to see the stamps on the links indicating we hadn't lost much material
We headed off out of Brisbane in search of a sandy road. When we found one we tied the chain the trailer hitch and set off down the empty road (the one car that passed us was pretty confused, or thought we were confused). By end-for-ending the chain a couple of times and driving through sweeping S turns the chain started to show bright metal after about 10k. Then it was off for galvanizing.

Because I ask about this stuff I learned the first step of the galvanizing process is a caustic soda solution to remove grease and oils from the steel. The chain is then immersed into a pickling solution of sulfuric acid. Then it’s ready for the molten zinc.


newly galvanized chain

The result is a thicker coating of zinc than what the chain had when it was manufactured—which means it should last longer. Especially because we’ll take better care of it this time round and not wait so long before regalvanizing it again.

Our cost at Industrial Galvanizers in Brisbane was $2.05 a kilo—and our chain came in at $166. Far less than new chain would have cost (we can’t get our chain here so would have needed a new gypsy as well).

April 22, 2013

First Friend


Now and then
Way back in the beginning, when our new-to-cruising kid asked Santa for a friend for Christmas, I wondered if cruising would ever be right for us. But not long after Maia made her lonely little request, a boat we recognized pulled into harbour. We had hopscotched down the US west coast with a boat called Orca. We were always a little out of sync, but usually one of us would delay a departure by a day or so, so our cruising kids (two only girls with more in common than we could have imagined given a 3-year age gap) could get their fill of little-girl chatter. This went on for months; starting in Neah Bay, then on to Coos Bay, Eureka and Morro Bay.

A few months into the trip, injury waylaid Orca and we lost touch. But then Maia’s Christmas dream was answered—Maia and Sirena, who were each other’s first (and, at that point, only) cruising friend, had a chance to catch-up in Newport Beach.
 
Brisbane breakfast brings back memories of a La Paz lunch
 

By the time we reached La Cruz, Mexico Maia’s social life was filled to overflowing, and those first lonely months were a memory. We still ran into Sirena and family, and the meetings were as sweet as ever, but the fear; that Maia would be lonely forever and cruising would never work, was gone.

“Will I make friends?” Is the question every cruising kid asks before they cruise or shortly after they begin. In most places (the ones where big packs of cruisers gather for months on end, or where groups of cruisers migrate with the seasons) the answer is ‘yes’. And most families tend to modify cruising plans a bit to go where the kids are.
 
Swimming in Brisbane, paddling in Morro Bay
 

But as the years have passed (has it really been almost 4 years?!) Maia’s question has shifted a bit. She now knows she’ll make friends, but now she wants to keep them too. She wants a group of buddiess she knows are hers and who know her, not just for a season but for years on end.

It had been a few years since Maia and Sirena last played together. But when the fates brought them together this weekend the years apart disappeared. Their conversation lasted for hours, went late into the night and continued on the next day. Plans were made for the next meeting, and the one after that. It’s not the same as being neighbours year in and year out. But I guess when you live a nomadic life, and half your friends are nomadic too, you accept the gifts of friendship the way they come.

April 14, 2013

Technical Post - Catamaran engine choices

Evan here.  I've got a quiet night so I'm going to write about something that is unusual for most sailors - Engine choices, specifically for cruising catamarans.  If you have a regular monohull sailboat your choice is usually pretty simple.  Outboards for boats up to about 27', an inboard diesel for boats over 27' (give or take a few feet). Catamarans offer a lot more choices.  Here are my thoughts on a bunch of the options.

1.  Single Outboard.  Usually used by smaller catamarans up to about 25' or so.  The 32' Gemini was an exception with some boats delivered with a 40 HP or so.  Unless you link the motor to steer when you turn the tillers, docking under power is pretty challenging.  You need to have some speed for water to flow over the rudders to turn the boat.  Even if you link the motor to turn, it's still like driving a bus inside a shopping mall at low speeds

Advantages:
- cheap
- light

Disadvantages
- steering under power is interesting


2A. Single diesel + Silette external drive.  Prouts and Geminis are the only production boats that I know that have used this combination.  A single diesel engine located in the cockpit and a steerable external drive leg is attached to the engine.  Visualize a big outboard leg with big 16" 3 blade propeller. The drive legs aren't too heavy (50 kg) but quite costly; around $6500 or so.  Owner's report exciting times when they put it in reverse and the leg kicks up suddenly when the lock mechanism isn't working.

Advantages:
- only the weight of 1 engine
- no drag when you tilt the drive leg out of the water. if it tilts enough

Disadvantages:
- Silette drive leg is pretty agricultural in it's engineering.  Reverse lock can fail and so can bellows and steering yoke

- works best on smaller boats that don't need the thrust of twin engines.
- about the cost of 1.5x diesels


2B.  Single diesel in one hull. You have to be a good driver in tight quarters with this combination.  Only seen on the odd custom catamaran.  If the engine is in the port hull, it will turn pretty good to starboard but turns to port take several boat lengths in radius.  Advance planning is required or don't even try to dock in tight quarters.

Advantages:
- well it's cheaper and lighter than 2 diesels

Disadvantages:
- handling in tight quarters is VERY interesting.


3. Single diesel in one hull + small auxiliary thruster.  The auxiliary thruster helps offset the unbalanced thrust of the one diesel. It can take the form of a smaller outboard, an electric bow thruster, or even an electric outboard motor.

Ceilydh has this type of system; a 27 HP Yanmar diesel in one hull, and a 6 HP outboard on the back beam near the other hull.  Because I'm so familiar with it, I'll give a bit more detail.

The outboard used to be a Yamaha 9.9 high thrust which would push the boat along at 5 knots in calm seas.
That died recently and we replaced it with a Tohatsu "Sailpro" 6. It offers a 25" shaft, remote operating, and quite light weight at 65 lbs. But it won't push the boat faster than 4 knots in calm conditions. That's enough to get into most harbours if the diesel dies but it won't push it against 25 knots of headwinds and it will ventilate in choppy seas.  The diesel died in California's channel islands. We sailed back to the mainland and used the outboard to get us the last mile to the dock through the breakwater entrance.


Powering with 1 diesel in open seas is no drama and the rudder deflection to counter the offset thrust isn't really perceptible (it's probably about 2 degrees). It's very common for twin diesel cats to use just 1 engines in most conditions.

It's noticeably low in power compared to a twin diesel installation when you're heading into strong headwinds. But we tend to sail in those situations or at least motorsail if the surrounding land doesn't allow sailing.

We usually anchor with just the diesel.  We've learned to live with the boat wanting to turn to starboard in reverse and just snub the anchor and straighten out the boat and then back down hard in reverse.

Our Yamaha was so unreliable we learned to expect it to die coming into the very rare marina or fuel dock and just docked slowly with the diesel.  Now we have 2 working engines it's much easier again.  
Advantages:
- lighter than 2 diesels
- lots cheaper than 2 diesels


Disadvantages
- outboard isn't much use in choppy seas
- less turning ability on really windy days compared to 2 big diesels

Digression: Bollard pull of a motor is the thrust produced at zero knots of boat speed. i.e. the thrust you measure when the boat is tied to a bollard on shore. Useful for comparing tugboat performance, it's also the best measure we have to compare thrust performance of a 'thruster' motor at low speeds. Thrust values below are all are in forward; reverse will be around 1/2 these figures.

Tohatsu 6 Sailpro = about 140-150 lbs (Evan's best estimate)

Yamaha 9.9 = 250 lbs (KatieKat measurements) 

Yachting Monthly results:
MinKota Riptide 55 lb trolling motor = 37 lbs (manufacturer lies a bit maybe)
Tohatsu 3.5 = 99 lbs (must have been a good one; seems high)
Torqueedo 2.0 = 119 lbs (manufacture claims only 115 lbs)

Yanmar 27 HP diesl = about 400-450 lbs with 3 blade feathering prop (Evan's best naval architecture guess)




An electric bow thruster type installation is useless as a 2nd means of propulsion, and adds a bit of drag. But it can help turn the boat fairly easily.  Bow thrusters are fairly costly for the power they produce and can only be used in short bursts.  But for docking that's all you usually need.

Advantages:
- lighter than 2 diesels
- lots cheaper than 2 diesels (but still more costly than an outboard for similar thrust)

Disadvantages:
- no backup propulsion


An electric trolling motor is pretty low thrust. I know of a PDQ 36 that had one as it's auxiliary thruster. It didn't do much and was replaced with a very costly Torqueedo electric outboard. 

Disadvantages:
- very low chance of backup propulsion unless flat calm
- not enough thrust for real turning unless flat calm.
- extra weight of batteries to get 24 or 36V required for 100 lb thrust motors.



Torqeedo Cruise 4.0R - when the Yamaha 9.9 died I considered this as a possible replacement.  (slightly lower thrust at 214 lbs).  But the high cost of the motor ($3800 US) + the required 4 batteries to get 48V put me off.  (both weight and cost)


4. Two outboards This has been successfully done on lots of smaller cats (Gemini, PDQ 32/36, Seawind 1000).  And some bigger cats as well, especially in Australia.  Most owners seem to like them.

Advantages:
- lighter than 2 diesels
- much cheaper than 2 diesels
- good steering in tight quarters
- redundancy

Disadvantages:
- shorter lifespan of outboards.  About 1500-2000 hours have been reported for Yamaha 9.9 by regular users.
- harsh environment and maybe lower reliability - it's a tough life for an outboard. You're controlled by electricity and you keep getting regular saltwater baths.
- not as good in choppy seas due to prop ventilation
- bigger than 9.9 HP size and props and gear reduction are optimized for fast speedboats not slower catamarans so efficiency diminishes


5 Two diesels  The default solution on larger catamarans. 

Advantages:
- better fuel economy than outboards
- reliable and longevity since they're inside the boat.  Diesels routinely get 5 - 10,000 hours of life
- redundancy

Disadvantages:
- cost
- weight


I've left out hydraulic (shudder) and electric hybrid systems (double shudder). With hydraulics you have noise, heat, leaks, low efficiency, With electric systems you have low efficiency under most conditions and lots of complexity.

Final thoughts:
Sometimes you just have to take what the builder supplies.  If I had the money I would have put a 2nd diesel into Ceildyh.  I would have liked to have 2 engines each capable of powering her in all sea conditions.  I would have also considered an unbalanced setup; the 27 HP in one hull and say a 15 HP size in the other hull for a bit less weight but still enough power to power her, even a bit slower, should the bigger motor die.  Engineers love symmetry but I think this would be an interesting solution.

- Evan

April 8, 2013

Yanmar 3GM30F Raw Water Pump - Rebuild

Just before we left to go sailing on Moreton Bay, I rebuilt the raw (sea) water pump with spare parts I had bought in San Francisco, some 2-1/2 years ago.  New bearings, a lip seal, a new impeller, etc.

If you take your old bearings and lip seal to a bearing supply house they can supply generic replacements for about 1/4 of the cost of Yanmar parts.  Just make sure your lip seal has a s.s. spring or an O-ring.  It's not hard work really to do the rebuild, once you realize the 2 bearings have a circlip between them and you have to seperate them to get them off the shaft.

And when you put the pump back togther - the pulley is not symmetric.  It's dished on one side. If you put the pulley on with the wrong face facing the pump, the V-belt won't line up.  At all. Though you can convince yourself that all is well if you're trying to go sailing for a long weekend.  And motor for many hours with the pump working with a V-belt that is totally off by about 1 cm or more.  When you put the pulley on the CORRECT way it looks much nicer.


April 6, 2013

Sailing the Barnacle Farm


The Sand Dunes on Moreton Island
For reasons I can’t quite fathom, setting off sailing on a fun sailing trip can seem a lot like work. Part of the problem is to actually get out on Moreton Bay means timing the currents, setting off at high slack, then making a nearly two hour journey to the sea. The return trip needs to be timed almost as precisely.
And then there’s all that packing, planning and organizing. Moving your house is hard.

Charlie helps navigate
What this means is it’s been a year since we’ve been anywhere. A year. We’ve planned to get out a few other times but always some thing has foiled the plan; a cyclone, or a broken engine, or waiting for some vital part. But this past weekend all the fates came together—the weather looked fine, the tides were cooperative and most importantly all the boat’s systems are functioning.

Despite the fact we live aboard, have crossed an ocean, and got very good at provisioning in stores that had very little by way of provisions, getting ready to head out felt like we were flexing a forgotten muscle. It was like when we went camping two weeks ago and I thought I bought everything we needed but still managed to forget the eggs for breakfast and the butter to fry in. Except luckily this time I was able to just go back to the grocery store and hardware store every time I realized I missed something from the list (got sandwich stuff, but forgot the bread). And I still forgot to visit the liquor store…


raftup sundowners
Easter Bilby helps celebrate

Casting off was drama free. Except for the huge amounts of black smoke coming from the engine and the fact that no amount of throttle seemed to give us any forward momentum. Fortunately we have a second engine—a new outboard we use to manoeuvre and dock. With the current in our favour it can push us at 4 knots. Unfortunately we only carry enough gas for manoeuvring and docking.

So we dropped the anchor (after it was clear that running the engine wasn’t going to magically make the smoking stop) and Evan dove into the murky water and discovered that rather than having a loving three bladed feathering prop, we had a ball of barnacles. It’s been a year, remember?

Merlin underway
hitchhiker
Eventually we made it out on the bay. Maia dove in for a swim and we came up with a definitive answer on whether or not our bottom paint is still working (no—the boat’s bottom was supporting a barnacle farm). But the sailing was great. The weather was lovely (other than one squall). We saw sea turtles and pelicans, climbed dunes and swam in warm water. Ate dinners with friends and watched the moon rise and wondered why we didn’t get out more often.
Convivia at sunrise
 It was so lovely we think we should do it more often—or maybe even for longer.

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