Spira International Mackinaw Drift boat

 

Hello I am just starting to build a spira international Mackinaw Drift boat and was wondering if anyone out there has built one. The plains I have are a least poor. What I am wondering is how you cut out for the sheer clamp & chine log. Is it strait or angled? I e-mail Mr. Spria for help and have had no response yet. It must have been my tone when I told him what I thought of his plains (I don’t no).any help or suggestions would be great

Thank You Roger 

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Permalink Reply by Mike Baker on November 14, 2011 at 12:24pm

Hey Roger,

I have not built one of these. Do not cut the chine log square it will end up angled towards the sides of the boat and collect water, cut it more or less to match the angle of the rib with the most flair (middle of the boat) probably some where between 25 and 30 deg.

The frames will need notches to accept the chine log, the top cut will match the angle of the chine and the side cuts will match the side angle of the side ribs (which I do know are not included in the plans and you will have to figure out).

Hope this helps and was not too confusing.

Mike

Permalink Reply by Roger Buchanan on November 15, 2011 at 11:08am

Thanks for you help im sure ill have a lot more questions as time passes

Permalink Reply by Lawrence E. Long on November 15, 2011 at 5:48am

Roger:  Get acopy of Roger L. Fletcher's book  "Drift Boats & River Dories"-  Well worh the $ and will save time and materials.  

Good Luck

Permalink Reply by Roger Buchanan on November 15, 2011 at 11:12am

 

Thank you I have the book ordered and it’s on the way I have seen a lot of comments about the book looking forward to getting it

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