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Archive for November, 2014
Posted by FWAL | Nov 30, 2014 @ 02:45 PM | 3,848 Views
Today at the lake three of my design and builds were competing. The wind was very light and kept us guessing which direction it would come from next but that was nothing compared to the course. For some unknown reason it was set back to front with the only beat from the gybe to the leeward mark and it wasn't impossible to complete a lap without a single tack.
Besides that it was a good feeling to watch my handy work being raced and enjoyed.
7 BOR 80, Vertex 99, Edge 35
Posted by FWAL | Nov 13, 2014 @ 04:00 PM | 4,153 Views
I have transposed the shearline, chine, rocker and beam dimensions at 14 stations to provide the shadow templates.
It may make look tricky in the photo's but please take a little time to understand how beautifully simplistic this method is to form the most natural curve from the chine to the rocker hull centreline. It really is amazingly simple.
photo 1
Draw the shape given the width of the deck/shearline. The depth from the shearline to the Chine and the width of the chine/beam. These measurements are taken off the hull section and deck/hull plan.
photo 2
On another piece of paper mark the centre line and chine
photo 3
Turn the paper 90 degrees, place the Chine mark on the rocker point and mark the intersection of the chine and centre line
photo 4
Turn the paper back to the original position. Then keeping the centreline mark on the centreline and chine mark on the chine line turn the paper a couple of degrees and mark the spot.
photo 5
Turn the paper again, check the centrelines and chine lines are still correspond and mark the spot
photo 6
Repeat this process until the edge of the paper reaches the centreline
photo 7
What a fantastic way to produce any ellipse shape
photo 8
Now I'm in a position to cut each one out. When it comes to cutting the curve I fold the template in half.
Posted by FWAL | Nov 11, 2014 @ 12:32 PM | 4,286 Views
The brain has been working overtime recently so it was about time I sharpened the pencil and started to put some lines down. I thought this might help take my mind off the RG65 design/build project but alas not, I've been truly brainwashed. The only cure now is to just get on with it.
So, The length of 65cm is a given. I have opted for a fairly narrow 9cm beam a 5.5cm transom and a max rocker of 3.7cm. Not sure what the draft will be as I haven't cast the bulb.
Below is the very basic hull section and deck/hull plan. Not too much detail as yet but this drawing will be tweaked and develop into a true working drawing encompassing some of my own ideas.
Given the info above (LWL, beam, rocker and shear line) I can now form the shadow section drawings.
Posted by FWAL | Nov 11, 2014 @ 12:29 PM | 4,244 Views
Not long ago Doug just had one of those days! It didn't matter what he did something 'rotten wood' happen!!

And earlier in the racing calendar I ventured to a District Event at Woodsprings and wasn't that impressed!!