Last Sunday the tide and wind were perfect for a trip up harbour to Kohukohu. We had intended on making the trip on Saturday however the wind and rain came in with too much force so we postponed.
I had wanted to attend the opening of the Ukulele Exhibition at the Village Arts Gallery.
The Exhibition was organised by the Kohukohu arts group who regularly put on art exhibitions of a particularly high standard. http://www.villagearts.co.nz/
The Ukulele Exhibition comprised of a collection of ukuleles which had been given a makeover by well known, established NZ artists. We were blown away ( by the exhibition).
We had a very calm start so we started the outboard and set off with the incoming tide from the Rawene township and were soon navigating the treacherous "Narrows." After 40 minutes at full throttle we made the Kohukohu Wharf where we tied up to the floating pontoon where four young Maori children were diving from the roof of the wharf shelter.
The village of Kohukohu is the second oldest in NZ and is particularly pretty when viewed from the Water. The majority of the houses date back to the 19th Century with most having been carefully restored. The trees, the bird life, the fish all make for a beautiful outing on the harbour on a sunny Autumn day.
We left Toroa tethered to the pontoon after which Julie and I went to the nearby Waterline Cafe and ordered coffee and a chocolate brownie.
After an enjoyable relax on the veranda we walked over to the Gallery where we met Kohukohu residents, John, Marg and Jim, colleague, curator/gallery owner, and boat enthusiast respectively.
After enjoying and discussing the brilliant show (Julie wanted to buy all the ukuleles on show) we made ready to leave. John, Marg and Jim came out to see us depart as they were particularly interested to see Toroa. With our friends in attendance on the wharf we cast off, raised our sail and set off on starboard tack across the harbour in 10-12 knots of breeze.
All went very smoothly and we sailed, on the wind, up to the Narrows where the decision was taken to drop sail and start the motor.
Under power we finished the trip to Rawene where we picked up our dinghy and paddled Toroa into the stream and anchored him ready for our next outing.
Toroa provided us with everything I have been wanting from him and I am very happy.
Friday, 12 March 2010
Tuesday, 2 March 2010
Sunday 28th Feb
I decided to take Toroa out to test the newly repaired outboard motor.
After the Chilean Tsunami alert was downgraded to an advisory I thought it would be safe to enter the water to retrieve Toroa from anchor in the tidal stream at Rawene.
I had not counted on the king tide (the highest in 7 years) and the force of the outgoing tidal flow.
I was immediately impressed and mildly fearful that I had not judged my swim trajectory to Toroa across the current.
I just made it.
Once on board I lifted the anchor in a dying south easterly. The breeze was completely gone by the time I raised my mainsail.
Toroa would not respond to any force I could exert without a paddle or out board motor (still on shore) me in my speedos waiting for the wind and heading off toward Australia at a respectable 4-5 knots.
No paddle, no PFD, no clothes, no sun block, no water and no wind.
Poor Julie was dwindling into the distance, a lonely anxious figure on the wharf. Mercifully a light breeze came up and I was able to regain control.
One hour and several shunts later I was fitting the outboard motor at the beach, 20 meters from where I first set out.
Julie took the opportunity to berate me for leaving myself (and her) so vulnerable.
"Just honing my skills mate"was my glib (though somewhat sheepish reply).
The motor started first pull of the starter cord!
We climbed on board with all our gear and provisions and set off up the Waima River against the tide with the idea in mind that should the motor fail we would still have the current to bear us homeward.
Toroa runs better than expected under power. The Dierking foil works a treat and the new prop, 7 1/4"x 5" is just the right pitch for my set up. I estimate we made around 7 knots of boat speed with 2.5 Hp. with the mast stepped. That will do me.
I received an informal complaint later made by Mrs Fish from the Hokianga Takeaway shop (Mrs Fish and Mr Chip have a commanding view of the area where our little drama was playing itself out) that a man of my age in speedos was pushing the boundaries of respectability. I remarked later that had I been a buffed, bronzed athlete the speedos could not have been brief enough.
After the Chilean Tsunami alert was downgraded to an advisory I thought it would be safe to enter the water to retrieve Toroa from anchor in the tidal stream at Rawene.
I had not counted on the king tide (the highest in 7 years) and the force of the outgoing tidal flow.
I was immediately impressed and mildly fearful that I had not judged my swim trajectory to Toroa across the current.
I just made it.
Once on board I lifted the anchor in a dying south easterly. The breeze was completely gone by the time I raised my mainsail.
Toroa would not respond to any force I could exert without a paddle or out board motor (still on shore) me in my speedos waiting for the wind and heading off toward Australia at a respectable 4-5 knots.
No paddle, no PFD, no clothes, no sun block, no water and no wind.
Poor Julie was dwindling into the distance, a lonely anxious figure on the wharf. Mercifully a light breeze came up and I was able to regain control.
One hour and several shunts later I was fitting the outboard motor at the beach, 20 meters from where I first set out.
Julie took the opportunity to berate me for leaving myself (and her) so vulnerable.
"Just honing my skills mate"was my glib (though somewhat sheepish reply).
The motor started first pull of the starter cord!
We climbed on board with all our gear and provisions and set off up the Waima River against the tide with the idea in mind that should the motor fail we would still have the current to bear us homeward.
Toroa runs better than expected under power. The Dierking foil works a treat and the new prop, 7 1/4"x 5" is just the right pitch for my set up. I estimate we made around 7 knots of boat speed with 2.5 Hp. with the mast stepped. That will do me.
I received an informal complaint later made by Mrs Fish from the Hokianga Takeaway shop (Mrs Fish and Mr Chip have a commanding view of the area where our little drama was playing itself out) that a man of my age in speedos was pushing the boundaries of respectability. I remarked later that had I been a buffed, bronzed athlete the speedos could not have been brief enough.
Harmen & Julie at Rawene
Photo by Rose Dierking
Sunday, 21 February 2010
Toroa rides again, again
Today Sunday was much like yesterday with light variable winds to begin with settling in to a sea breeze around 1.00. pm. Julie and I sailed out past the Rawene peninsula on port tack and headed for Motukaraka where there is a beautiful little Catholic Church on the hill. There we shunted through to starboard tack and sailed past Rawene across the mouth of the Omanaia river. With abuilding breeze of around 12-15 knots we shunted again with the intention of heading back home. Unfortunately I got the shunt sequence wrong by failing to release the mainsheat from the old starboard tack position and got everything caught up. We very nearly got put aback before I figured out what I'd done wrong. Luckily I was able to unclip the sheet and uncross the lines. Once that was done the proa came back under control and we were able to set off again.
Lesson: Despite vast past experience, one over site on my part and the whole system goes badly wrong.
I'll have to tattoo the instructions on to the inside of my eyelids. either that our set up a tape of subliminal shunting suggestions whilst I'm asleep!
I'll be working on Paul Bowker soon to convince him to come along with his little video camera and GPS for some vital statistics and footage.
Until then
Harmen
Lesson: Despite vast past experience, one over site on my part and the whole system goes badly wrong.
I'll have to tattoo the instructions on to the inside of my eyelids. either that our set up a tape of subliminal shunting suggestions whilst I'm asleep!
I'll be working on Paul Bowker soon to convince him to come along with his little video camera and GPS for some vital statistics and footage.
Until then
Harmen
Saturday, 20 February 2010
Toroa rides again
Today Saturday dawned bright and clear. The cyclone blew itself out and has now become a high pressure cell.
The sea breeze set in at Rawene around 11.00 am. Julie and I loaded our gear in the car and set off to the beach.
We paddled out and returned Toroa to the shore and I set about making the last changes and adjustments to the rig that I planned last night.
Once set up we caught the high tide and we set off up the Waima River on starboard tack in 10 to 12 knots of breeze.
We put in a shunt which was trouble free and we set off up river. Toroa covers the ground very quickly now so it wasn't long before we were turning back.
Now I have enough confidence to have another go tomorrow.
I added a new endless shunting line which keeps the tack of the sail from moving about whilst I walk the rig from end to end.
I have managed to stay true to my goal of having no rotating parts all the control lines run through dead eyes and thimbles.
The mainsheet is based on the Kiribati style with a single and double purchase rigged to create a 1, 2, or 3 purchase sheet.
This system allows me to run only the one sheet for either tack, unlike Toroa's old twin sheet line set up. I have set up a clip to secure the main sheet dead eye block to either tack position on the lee gunwale with a light retrieving line tied to the centre cockpit scupper hole. That way I don't loose the end of the sheet through the shunt.
The sea breeze set in at Rawene around 11.00 am. Julie and I loaded our gear in the car and set off to the beach.
We paddled out and returned Toroa to the shore and I set about making the last changes and adjustments to the rig that I planned last night.
Once set up we caught the high tide and we set off up the Waima River on starboard tack in 10 to 12 knots of breeze.
We put in a shunt which was trouble free and we set off up river. Toroa covers the ground very quickly now so it wasn't long before we were turning back.
Now I have enough confidence to have another go tomorrow.
I added a new endless shunting line which keeps the tack of the sail from moving about whilst I walk the rig from end to end.
I have managed to stay true to my goal of having no rotating parts all the control lines run through dead eyes and thimbles.
The mainsheet is based on the Kiribati style with a single and double purchase rigged to create a 1, 2, or 3 purchase sheet.
This system allows me to run only the one sheet for either tack, unlike Toroa's old twin sheet line set up. I have set up a clip to secure the main sheet dead eye block to either tack position on the lee gunwale with a light retrieving line tied to the centre cockpit scupper hole. That way I don't loose the end of the sheet through the shunt.
Toroa back in his element
Julie and I relaunched Toroa last week.
The outboard motor however would not run. After several hours of mechanical work I was still unable to solve the problem so I finally relented and took Julies advice. We delivered it to the Sail outboard dealer in Kerikeri. Tony diagnosed a blown head gasket! He assures me it will be ready to collect mid next week. The machine came with a bag full of parts which contained all the gaskets needed for the job which was fortunate.
Toroa's re cut sail looks very good and sets well.
I spent some time yesterday sticking non skid strips on to the decks to give me more reliable footing. I've added a tacking line and I'm experimenting with the shunting set up. I'm concerned that my mast, although sturdy is too heavy which makes the shunt a more demanding process than it should be. I may yet have to replace it with something lighter.
In the mean time Toroa patiently sits at anchor in the harbour at Rawene awaiting a day when there is less wind. Friday I took some time off work. Ironically for me, after weeks of hot settled weather the late summer cyclones have started forming. One has been moving south east down the East Coast of the North Island and affecting the pattern over the north. Overnight on Thursday the wind came in from the south at around 25 gusting 35 knots. I'm hoping for better conditions tomorrow Saturday for a trial sail.
I'll post some photos later.
Harmen
The outboard motor however would not run. After several hours of mechanical work I was still unable to solve the problem so I finally relented and took Julies advice. We delivered it to the Sail outboard dealer in Kerikeri. Tony diagnosed a blown head gasket! He assures me it will be ready to collect mid next week. The machine came with a bag full of parts which contained all the gaskets needed for the job which was fortunate.
Toroa's re cut sail looks very good and sets well.
I spent some time yesterday sticking non skid strips on to the decks to give me more reliable footing. I've added a tacking line and I'm experimenting with the shunting set up. I'm concerned that my mast, although sturdy is too heavy which makes the shunt a more demanding process than it should be. I may yet have to replace it with something lighter.
In the mean time Toroa patiently sits at anchor in the harbour at Rawene awaiting a day when there is less wind. Friday I took some time off work. Ironically for me, after weeks of hot settled weather the late summer cyclones have started forming. One has been moving south east down the East Coast of the North Island and affecting the pattern over the north. Overnight on Thursday the wind came in from the south at around 25 gusting 35 knots. I'm hoping for better conditions tomorrow Saturday for a trial sail.
I'll post some photos later.
Harmen
Monday, 1 February 2010
Domestic sewing machine does the job!
I got down on the floor today and set up our little "Brother" sewing machine. It handled the coated nylon sail thread and Novathene fabric quite well.
I had to set up the industrial sized spool of thread on a rod supported by two saw horses above the machine but that was the only problem I encountered other than setting up the thread tension correctly.
Once I'd done some practice runs on some scraps of cloth I sewed up the seams. I only broke 3 needles!
Lastly I sat down to hand sew the two joins in the bolt rope with waxed sail makers twine.
The sail now only needs bending back onto the spars and then I can set up for another dry run.
I'm learning patience which does not come naturally to me.
I do love the process of sewing by hand, there's something hypnotic about the activity. The result is so satisfying, so strong. I like to think of the power this inanimate sail is capable of producing, quite magical.
I had to set up the industrial sized spool of thread on a rod supported by two saw horses above the machine but that was the only problem I encountered other than setting up the thread tension correctly.
Once I'd done some practice runs on some scraps of cloth I sewed up the seams. I only broke 3 needles!
Lastly I sat down to hand sew the two joins in the bolt rope with waxed sail makers twine.
The sail now only needs bending back onto the spars and then I can set up for another dry run.
I'm learning patience which does not come naturally to me.
I do love the process of sewing by hand, there's something hypnotic about the activity. The result is so satisfying, so strong. I like to think of the power this inanimate sail is capable of producing, quite magical.
Sunday, 31 January 2010
January 2010 progress on Toroa
Work on Toroa's sail and motor has begun again.
Since November 09 I've been distracted by my physical condition which has affected my wrists and hands.
I've also been very busy at the Rawene Hospital solving problems.
My outboard motor now has the Dierking foil fitted and I've ordered a new 7.1/4'x 5'' prop which arrives next week. (It's a Yamaha prop)
A funny thing about the New Zealand importers of Sail Outboards. When I made an enquiry about a replacement prop they tell me the manufacturers never made a long shaft 2,5 Hp 4 stroke outboard!
The outboard motor catalogue published in a recent NZ Boating Magazine lists 2 prop sizes for a Sail brand 2.5 Hp, 7,1/4"x5" and 7,1/4"x8". They tell me they've never stocked a 5" pitch prop either.
I wonder how my long shaft came into existence? Perhaps it's a figment of my imagination. I've posted some pictures of it, can you see it? It measures 19" from the bracket hook to the bottom plate.
Even the Sail brochure/ hand book that it came with says "Long Shaft, Barge Model 4 stroke, 2,5 Hp."!
Has anyone else got one / seen one or am I alone in the world?
Please let me know.
The reason for the foil is to reduce drag and turbulence around the surface piercing shaft. When unchecked the turbulence allows air to make its way down the trailing edge of the leg causing the propeller to cavatate or loose laminar flow over the blade, thereby reducing thrust.
The foil mitigates this problem increasing motor efficiency by a large factor.
Outboard motors are designed to sit behind a transom so the manufacturers only create a foil for the immersed section of the stern leg. The proa presents the unique problem of a surface piercing outboard which this foil answers very well.
I measured, cut and folded a piece of aluminium panel and wrapped it around the stern leg of the motor.
I do not want this structure to be a permanent part of the motor because I need to gain access to the ports for leg lubrication and water pump. I riveted a v section tab down the trailing edge of the foil and screwed the other side with s/s p.k. screws so that I can unfasten it any time I need to.
I've laid out Toroa's sail on the workshop floor and I've started the modifications I've been planning.
Since November 09 I've been distracted by my physical condition which has affected my wrists and hands.
I've also been very busy at the Rawene Hospital solving problems.
My outboard motor now has the Dierking foil fitted and I've ordered a new 7.1/4'x 5'' prop which arrives next week. (It's a Yamaha prop)
A funny thing about the New Zealand importers of Sail Outboards. When I made an enquiry about a replacement prop they tell me the manufacturers never made a long shaft 2,5 Hp 4 stroke outboard!
The outboard motor catalogue published in a recent NZ Boating Magazine lists 2 prop sizes for a Sail brand 2.5 Hp, 7,1/4"x5" and 7,1/4"x8". They tell me they've never stocked a 5" pitch prop either.
I wonder how my long shaft came into existence? Perhaps it's a figment of my imagination. I've posted some pictures of it, can you see it? It measures 19" from the bracket hook to the bottom plate.
Even the Sail brochure/ hand book that it came with says "Long Shaft, Barge Model 4 stroke, 2,5 Hp."!
Has anyone else got one / seen one or am I alone in the world?
Please let me know.
The reason for the foil is to reduce drag and turbulence around the surface piercing shaft. When unchecked the turbulence allows air to make its way down the trailing edge of the leg causing the propeller to cavatate or loose laminar flow over the blade, thereby reducing thrust.
The foil mitigates this problem increasing motor efficiency by a large factor.
Outboard motors are designed to sit behind a transom so the manufacturers only create a foil for the immersed section of the stern leg. The proa presents the unique problem of a surface piercing outboard which this foil answers very well.
I measured, cut and folded a piece of aluminium panel and wrapped it around the stern leg of the motor.
I do not want this structure to be a permanent part of the motor because I need to gain access to the ports for leg lubrication and water pump. I riveted a v section tab down the trailing edge of the foil and screwed the other side with s/s p.k. screws so that I can unfasten it any time I need to.
I've laid out Toroa's sail on the workshop floor and I've started the modifications I've been planning.
I've removed the swallow tail tips from Toroa's old red sail (which is featured on youtube) and I've added them as an extension to Takapu's old sail. This procedure results in giving me more sail area down low allowing me to attach the boom much lower on the yard closer to the tack.
I grafted the fabric together using double sided tape which I will then sew with a zig-zag triple stitch. The stitch pattern is critical to the success of this modification as the sail cloth has been laid up diagonal to the angle of the bias to allow for stretch. If the fabric stretches without the equivalent stretch in the stitching the seam will fail or poor set will result. I'm going to try our domestic machine and if it doesn't cope I'll visit our nearest sail maker in Kerikeri next week and ask them to stitch it up for me.
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