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Thread: Wood defects

  1. #1
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    Wood defects

    Can you guys send me some pictures of how does spiral grain, wavy, curly, interlocked grain ,sap veins ,shakes cross grain, hard knots, pin knot clusters spike knots, pitch pockets , mineral streaks compression wood etc...........looks like? I will start looking for douglas fir wood for my aircraft project for here in portland oregon there is plenty of it and other woods.

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    Registered User PTAirco's Avatar
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    Re: Wood defects

    Ooops - double post


    Have you tried the US Forestry service (or "Forest Products" or some such term)? They have a lot of information available on such stuff.
    Last edited by PTAirco; April 13th, 2008 at 12:51 AM.
    "Aeronautical engineering is highly educated guessing, worked out to five decimal places. Fred Lindsley, Airspeed."

  3. #3
    Registered User PTAirco's Avatar
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    Re: Wood defects

    Quote Originally Posted by motorglider View Post
    ....spiral grain, wavy, curly, interlocked grain ,sap veins ,shakes cross grain, hard knots, pin knot clusters spike knots, pitch pockets , mineral streaks .....
    Sounds like a list of medieval diseases.

    Have you tried the US Forestry service (or "Forest Products" or some such term)? They have a lot of information available on such stuff.
    "Aeronautical engineering is highly educated guessing, worked out to five decimal places. Fred Lindsley, Airspeed."

  4. #4
    Registered User expedition2166's Avatar
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    Re: Wood defects

    heres a few pages you can look through theyll help some some of the characteristics you want to know about are self explanitory interlocked grains etc are just that there where the grains come together and look like there woven together but these pages will help
    http://www.coltimbers.co.za/defects.htm

    http://www.vermonttimberworks.com/ho...ing/index.html

    http://www.wood-worker.com/articles/common.htm
    William,

    Take offs are discressionary, Landings are mandatory

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