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Thread: Teal gets more mods.
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22nd April 2010, 02:03 AM #1
Teal gets more mods.
Have bit the bullet with my poor long-suffering Teal, & decided to give it a
decent daggerboard. Immersed area will be almost 70% bigger than current
board, and a couple of inches further forward.
Attachment 135324
Gave myself a present of an old Triton Mk.3 with a grunty Hitachi saw.
Ripped down a couple of the neighbours rafters into enough staves to do
5 foils - 2 PDR/GIS rudders & 3 daggerboards. (I might never get around to
building either boat, but I'm sure the foils will find a home in something.
Eventually.) Staves, rafter, & work area.
Attachment 135327 Attachment 135326
Glued the staves with water-resistant PVA to hold them together for the
shaping phase. Epoxy isn't kind to edged tools. Neither am I. PVA glue to be
beefed-up after shaping.
Got a bit carried away with the planes on the glued-up boards. By the time
I'd got things flat & square, the best Dave at DFWB could do on the
thicknesser was 19mm. <Shrug> accuracy is overrated anyway...
Re-scaled MIK's PDR foil templates to 19mm & shaped 1 blank. Managed to
induce a twist into it somehow. The bottom half is symmetrical P & S, but
near the top, the trailing edge strays off to one side. Dunno how I managed
that. Guessing that the blank wasn't screwed down as flat & tight as I
imagined during planing.
Once shaped, I dropped the circ saw through the PVA glue joins between
staves at each end plus in a number of gaps between staves in the middle.
Filled them with pox. Glassed it & added a top cap.
Built a DB case to match the foil. That seems to be the right order for me
to do things in. Easier to make the case fit a foil than the alternative.
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22nd April 2010, 02:34 AM #2
This week, open-heart surgery to the boat.
Ruined a couple of jigsaw blades getting the old case out. No screws, just
lots of glue/fillet compound epoxy. Took the opprtunity to straighten the case
fore & aft. The old one was angled a couple of degrees to port.
Attachment 135334 Attachment 135335 Attachment 135336
Ran into problems marking & cutting the slot in the floor. The seat hasn't
enough room under it for a leccy drill. Slipped around to the local hardware
for one of those ubeaut right-angle drill attachments. They didn't have any,
so I bought a Dremel instead. It turnrd out there wasn't room under the seat
for the Dremel either, but I was able to accurately drill some line-up holes
with the Dremel, so it wasn't totally wasted $. Have found several other uses
for it in the intervening 36hrs, so am increasingly happy with the purchase.
Attachment 135337
Couldn't see how to make the original NACA0012 cut-out blend in with the
seat & the new straight-sided box. In the end, I decided to cut out a strip
either side of the case & fill it with ply.
Attachment 135339
Observations:
1. An electric plane run across the grain at the ends of old oregon is not good
for the wood structure...
2. Leaning over a boat for 3 days straight is not good for my neck. Or back.
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22nd April 2010, 08:09 AM #3
Watch it Redback, you've got competition
AJ's only telling half the story, tis a big bite he's bitten off there.
Should make a big difference mate
Richard
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22nd April 2010, 09:45 AM #4
Nice supply of useful wood there AJ . Any more neighbours tearing their roofs off? .
You're a brave man - I get one slight dip in my foils blank and I go to pieces and give up . Well, not exactly, but it seems like it . I'm actually waiting for Mr Storer to surface with a calibrated foils profile...
BTW, did you ever consider using BoteCote's Purbond for glueing up the staves? I'm curious, since I was going to use it myself, but chickened out and used 'pox/Q-cels instead. It would have been better had I stuck with the Purbond, in hindsight - or done any number of other things differently, come to that...
(See, Richard, I can venture out of the Storer forum! )
Cheers,
Alex.
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22nd April 2010, 04:23 PM #5
G'day Alex.
Used Purbond for the rudder blade I made a couple of years ago.
Would have used it again but it had gone off in the tube. <shrug>
Attachment 135361
Box glued in place with extra bracing inside the seat & along the front face.
Hopefully the box wont explode if I hit something hard.
Attachment 135362 Attachment 135363
As I had no suitable pieces of hardwood to make the rear stave, I have inserted pads
on the board where it is most likely to bear on the case lips in event of striking
underwater obstacles. The Dremel was The Answer to the problem that has been
bothering me for weeks - how to neatly shape/fair-in the blocks.
Took all of 10 minutes, no sweat. You can see where I dopped the circ saw through
the stave joins & filled with pox.
Attachment 135367 Attachment 135365 Attachment 135364
In a bit of a rush with this one now. Have really only got this week & a bit of the
mornings next week to finish it. Then I'll be fully committed to rearranging the back-
yard for a major retaining wall replacement. Forgot to do a bit of filling under the seat
yesterday which has put me a day behind where I need to be, but should be ready for
the water again by next weekend. (Which is now double & treble booked, dammit!!)
Would have been nice to clear finish the board, even with all the filler, but am out of varnish and time. So Norglass Reef Blue will do.
Attachment 135368
Had to make a roller frame for the fine foam rollers I got from Mike. Not found in any
of the usual places. Lucky I had a length of 6.5mm stainless rod left over from the
gudgeon pin of a previous build. And a bit of dowelling.
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22nd April 2010, 10:58 PM #6
Very cool Mr. Boat.
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24th April 2010, 01:29 AM #7
Sanding, sanding, sanding.
Trouble with clear finishes over epoxy is that you can't splice in a change &
hide it - you have to take the whole area back to bare wood & re-do it from scratch.
And 10y/o epoxy is flamin' hard stuff. Took better part of 2 hrs and some 80gr
paper on the ROS to get through it. Then a tidy-up with some 180gr on the ROS,
some hand-sanding along the grain with 180gr, and a scraper to finish off (been
reading PAR's comments on epoxy attaching into grain tubules).
Attachment 135482
Despite all that, I still missed a few spots on the edge of the seat.
They'll stay that way now. Not sanding it again.
Once the pox dries the boat could, at a pinch, be used.
Attachment 135483
This will probably be the second last post on the subject. Won't be any
significant change in appearance - the Ultraclear acrylic I'll coat it with when
next I can get to it is very... clear. Next post will answer the fundamental
question... did it work? Hoping for a resounding 'yes'. Will settle for a
'somewhat improved'.
cheers
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11th May 2010, 02:04 AM #8
Well, thems as reads the U-Beaut Wooden Boat Squadron thread/s will already know that the new board works.
https://www.woodworkforums.com/f35/ub...ml#post1150748
Brilliantly. (x3)
Only better. (x10)
Boat ghosts to windward in a zephyr, even when I actually try not to go anywhere.
Managing 90 degree path-over-ground tacks. Or better. (see track)
I think I finally have the boat that Teal can be , and a sore bum from sitting on the centreboard .
There's scope for perhaps 10% larger sail.
Toe-straps could be useful too.
Only one real problem left... Teal is a bit too small for me.
Time to start thinking seriously about the next boat, confident that whoever Teal goes
to, inside or outside of the family, they'll have a boat that won't come back to bite me...
In the meantime. I have an enjoyable little boat with no bad habits to speak of.
Thanks MIK for your generous technical input, both in person, and via your website
Michael Storer Boat Design - Wooden Boat Plans - Australia USA UK South Africa
Thanks fellow ubeauters for your understanding, contribution & encouragement.
<The End>
until the next "tweak" anyway...
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11th May 2010, 04:21 PM #9
Cool . And congratulations . How about a Goat for the next boat? Or Oughtred's Gannet or Fulmar (eek!)?
(I'm merely projecting my own wish-list )
Cheers,
Alex.
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11th May 2010, 10:28 PM #10
Not Goat.
Probably.
Thunk long and hard about it.
Concluded that I haven't a clue.
Too many conflicting thoughts about priorities.
The boat for me isn't the boat for the wife...
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