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Linseed oil inside of airframe tubes
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Dave Krall CFII SEL SES



Joined: 14 Mar 2007
Posts: 358
Location: Seattle WA

Posted: Wed Mar 05, 2008 4:13 pm    Post subject: Linseed oil inside of airframe tubes  

I've read of guys drilling a few small holes in major tubes and putting a liter or two of linseed or other anticorrosion oil inside the airframes of tube & fabric planes like ours (especially seaplanes) then tilting the airframe upside down & every which way and letting it sit, tilt another way, etc. for about a week. Then drain and seal holes with screws.

At least in the major tubes, I'm thinking it sounds like a good idea for airframe longevity.
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stede52



Joined: 06 Sep 2007
Posts: 261
Location: Carnation, WA

Posted: Wed Mar 05, 2008 11:17 pm    Post subject:  

Chances are with or without Linsead oil in the powder coated frame the highlander's will most likely out-live the planes usefulnees before corrosion takes it. Seems like a waste of time and effort to me, also the fact you'd be drilling a bunch of hole in the airframe would probably compromise it more than moisture.  :)

Steve
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Dave Krall CFII SEL SES



Joined: 14 Mar 2007
Posts: 358
Location: Seattle WA

Posted: Fri Sep 12, 2008 2:12 pm    Post subject:  

stede52 wrote: Chances are with or without Linsead oil in the powder coated frame the highlander's will most likely out-live the planes usefulnees before corrosion takes it. Seems like a waste of time and effort to me, also the fact you'd be drilling a bunch of hole in the airframe would probably compromise it more than moisture.  :)

Steve

The guy building my float legs mentioned the other day that I should coat the inside of the airframe with one of the "penetrant oils" that apparently will creep all through the airframe, even uphill, and said a liter will do 2 planes. AS has the creeping, anti -corrosive penetrants for sale but no one knew anything about them. More research to do...
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Dave Krall CFII SEL SES



Joined: 14 Mar 2007
Posts: 358
Location: Seattle WA

Posted: Mon Sep 15, 2008 12:45 am    Post subject:  

Dave Krall CFII SEL SES wrote: stede52 wrote: Chances are with or without Linsead oil in the powder coated frame the highlander's will most likely out-live the planes usefulnees before corrosion takes it. Seems like a waste of time and effort to me, also the fact you'd be drilling a bunch of hole in the airframe would probably compromise it more than moisture.  :)

Steve

The guy building my float legs mentioned the other day that I should coat the inside of the airframe with one of the "penetrant oils" that apparently will creep all through the airframe, even uphill, and said a liter will do 2 planes. AS has the creeping, anti -corrosive penetrants for sale but no one knew anything about them. More research to do...

Yep, all the responses from owners & A&Ps are saying to definately coat the inside with boiled linseed oil or other anticorrosive of choice, even in "dry" climates. One guy in a dry climate reported total rust through of the horizontal stabs in an unprotected 1979 Citabria, amazing.

Still researching techniques. A few small, strategic holes to allow forced air to propel the anti-corrisive is one way...
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