Friday, August 3, 2007

Centreboard continued

Here is how I decided to do my centreboard after trying to find methods using google and not finding many...
The foil shape only goes to about 180mm from the end of the board. After a bit of thinking I decided to rough chisel this area out for the front of the plane. I then tucked in and planed down to about 2mm of the router guides. Penciling in the router marks made them more visible. With the plane on a finer setting and then using the belt sander with 60 grit I got a great foil shape. You can also see the taper towards the bottom of the foil. It has about the same taper as a Cessna-172 wing. decided this would be simpler than trying to make it elliptical. More to come tomorrow. I was dreading this but it has been reasonably straight forward so far.

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