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Eun Mara Builders Discussion

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1843
Stephen Becket
04-27-2019
05:22 PM ET (US)
Hi, Steve B. Sorry for the delayed reply. The ‘Boss’ told me that my plans to build the boat were premature! Sure enough this last year has been filled with home renovations and garden work. We recently bought a lifestyle block outside Warkworth, New Zealand. However having the boat plans has been a constant reminder to do something and home renovations have honed my carpentry skills! So far I have decided the original building space was inappropriate because it was in the workshop and with so much else going on it would have got in the way so an additional ‘carport was built onto the garage/workshop and the floor concreted to give a smooth level surface so setting up the jig should be more accurate. I have, however, done a fair bit of laminating. I use Bote Cote 1:1 epoxy glue (which I mix in one of the wife’s silicon cake moulds - when it hardens after the job, you just invert the mould and the dried glue peels off ready for reuse!). To date I have laminated the inner bow stem and used that, covered in cling film, as a form to shape the outer stem. I found that by keeping the inner one in its original mould while forming the outer stem the spring out you get from releasing the lamination was such that they have a perfect fit! (I hope that makes sense!) I have formed the inner stern stem the same way. The ribs on number 3 and 4 frames have been formed. I tried to be clever on number 3 frame and cut the timber strips to slightly larger than finished size but after trimming they are too thin so will have to do remedial work on that, probably thicken them up by adding strips to the interface because there will be severe shamfering required on the forward face to allow the planks to turn in towards frame number 2. One issue I had with laminating was trying to laminate the whole thickness in one go. If the strips aren’t absolutely parallel they try to squeeze out sideways when yo apply the bending pressure. I found this was easily controlled by laminating 4 or 5 strips at a time and building up that way. No problem if you have the time, is easier than beating the strips back into line or ending up with an array of clamps impersonating a hedgehog! My next job is to prepare the floors as I thought I might put those in place with the first strip of planking because of the severe bending required. However soon I shall set up the jig in the new building area (currently being used to store timber for other projects due to be finished soon) and I look forward to building the hull. I am using a native hardwood called kwila for the keel and ribs. It is used here for verandah decking and relatively cheap. It is quite stiff as laminating strips have been cut to 5 mm thick, which means a bit of extra glue is required. I find Bote Cote ( made in Australia) very good and easy to use. Just mix it up and spread it on like sift butter, very little dripping or running. It sets hard and I’ve used an electric plane to trim off the hardened excess but now wipe off the excess before it sets. ( another advantage of laminating in thinner sections rather than the full thickness in one go). Kwila is known for bleeding when wet but as I shall be giving it all a coating it shouldn’t be a problem. I redid our kitchen bench top by removing the Formica top and replacing it with a Kwila wooden top, gave it a few coats of Danish Oil and it is hard wearing and does not stain so hopefully it will be the same on the boat. I’ll let you know how I go with the next phase of the boat. Who said retirement was a time for relaxation?!!!
1842
Ian Milne
03-21-2019
04:00 PM ET (US)
That sounds good, Steve.
We launched our Kotik on 10th March, and took her to a classic boat rally on 17th, before our summer runs out. We have named her "Kotik". It's short, and easy to pronounce. She floated, and steered well, and the motor ran, so all is good so far. Now she's back in the workshop to be finished properly, as long as it takes. (You can see her on my WoodenBoat thread "Kotik, Kotik, Kotik!"
We were pleased to have a visit from Ron and Liz Binet of EM "Lizzie 3" in early February.
Ian
1841
Steve B
03-21-2019
12:52 PM ET (US)
Crickets around here.
I wonder how Stephen Becket is coming along with his build.
Still no Wiki pages, a loss for future builders for sure.

I had a lovely sail yesterday, first day of Spring and it was a beautiful sunny day. Opting to stay in the harbor really shook some of the winter rust off, the relatively limited space means lots of tacking and the wind tends to be shifty so you really have to pay attention. We had everything from becalmed to reaching at 5.5+ knots according the GPS. A good start to the 2019 season!
1840
Ian Milne
06-26-2018
05:53 PM ET (US)
Our GPS indicated 10 knots over the ground (GPS) one time, with everything pushing us!
1839
Steve B
06-26-2018
11:05 AM ET (US)
I've been over 5 too, past 6 surfing downwind a few times but not very often.
1838
Ian Milne
06-25-2018
04:59 PM ET (US)
Thanks, Steve. I haven't got my copy yet. I'll look out for it.
Under power, we were pushing water at 5.4 knots, so we usually motored at 4.5 - 4.8 kn, but she could sail at 6 knots under the right conditions.
Ian
1837
Steve B
06-25-2018
02:04 PM ET (US)
This month Wooden Boat Magazine (July 2018) has a nice article about a voyage across Scotland on an EM. Ian Milne gets quoted a bit too. A couple of small editing issues (pretty sure the boats hull speed isn't 6.5 knots) but overall a pretty nice write-up. And a good looking boat too.
1836
Ian Milne
05-20-2018
07:32 AM ET (US)
We got a single-axle trailer for "Islesburgh" because we had found that a tandem trailer was hard to manhandle. It had 13" wheels to start with and the end of the rudder hit the ground too easily, so we got 14" wheels put on it, with stronger springs and tyres. It was OK after that. Our trailer-maker was very reasonable about it. The new tyres were rated for max. load of 850kg (each), so the total load was almost at their limit. I recommend a tandem trailer. We have a tandem now for my Kotik and it is easy to manhandle at home if I take the back wheels off. The brakes are on the front wheels. We got the trailer early so I didn't need to build a cradle for the hull after turnover. We turned it over straight onto the trailer. You can see it on (google) <woodenboat forum kotik kotik kotik>. (We had a tilting boom on our EM trailer too, but it was not necessary.)
Ian
1835
Steve B
05-20-2018
12:18 AM ET (US)
Ian Milne had a very nice looking trailer built for his boat, I copied a few design elements when re-working mine. You'll want to get the boat as low as possible.

The EM at 1200kg/2600lbs fits between readily available (in the US at least) trailer load ratings. Lots of stuff at 2000lb and then a big jump to 3500. They are also mostly set up for powerboats with the axle set pretty far aft to counter the weight of the big motors hanging off the transom. I know I've got way too much tongue weight on mine but have put up with it because my annual trek to the local ramp is only a few miles each way. 18 months isn't that far away, start looking now.
1834
Stephen Becket
05-19-2018
12:24 AM ET (US)
Steve B. When I got my plans from Iain I also got a sketch of a trailer. It is double axle. I’m not sure if I can post it here but if you’re interested I can send you a copy by email.


My plan is to use the boat as a trailer sailer and will be dragging it out of the water each time. I have been contemplating having a telescopic tow bar so that I can keep the car out of the water when launching etc. but that is still 18 months away for me, at least!
Edited 05-19-2018 12:27 AM
1833
Ian Milne
05-17-2018
08:55 PM ET (US)
Fair enough!
1832
Steve B
05-17-2018
08:04 PM ET (US)
I have a copy of the Watercraft issue with the trolley in use and got the same drawing from IO. I've been using chest waders with my "real" boat trailer, they are fine until you bend over too far and then fill up fast!

If I had to launch the boat more often than annually I'd simply refine my existing trailer a bit but it seems like twice a year I end up renting a utility trailer to haul stuff past the useless boat one.
1831
Ian Milne
05-17-2018
05:16 PM ET (US)
Hi Steve, The plans for my Eun Mara included a sketch design for a trailer with a separate trolley that you would push under the boat in the water and then pull the whole thing out onto the the trailer. That was for Brice Avery, the instigator of the EM design, for launching and retrieving on shallow beaches on the west coast of Scotland. He wore chest-high waders to do it. It is described in an article in one of the early "Watercraft" magazines. Alec Percival (one of our original group) started using his EM "Heather Mary" with a general-purpose trailer and a separate trolley. Bob Lewis and I were with him when he took her out of the water at Goolwa S.A. after the boat show there in 2007. He got quite wet. He had a boat-trailer made after that. There are photos on Richard's website. I'll send you some more.
Ian
1830
Steve B
05-17-2018
01:53 PM ET (US)
Thanks, I though the all-up weight was about 1200kg. Because I don't have enough to do already I've been contemplating building a boat-dolly so I can get rid of the single-use boat trailer I have for Marianita. She lives in the water, only coming out for a couple of weeks each year for paint and varnish work easier done on the hard. A nice flatbed trailer I could put to good use, the boat-only one serves as a low trellis for invasive blackberry vines the other 50 weeks.
1829
DaleHPerson was signed in when posted
05-16-2018
09:42 AM ET (US)
Re: The Wiki pages. Turns out they were not gone after all but I did note that version of the scripts I was using was still the original from 2007. Can't imagine why its not supported anymore. This week/weekend is "non-stop busy" for me but I will try to reinstall/restore the Wiki by the end of next week. If that doesn't happen please nag (remind) me as I do tend to forget stuff.

Dale
1828
Ian Milne
05-15-2018
05:14 PM ET (US)
P.S. I raised the boot-top later, when I repainted the hull, up to the lower edge of the next strake. I think Alan did that too. I have done the same on my Kotik.
Ian
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