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#11
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Read about "water break" testing and solvent cleaning.
http://www.lmaeronautics.com/materia...docs/pg054.pdf http://www.westsystem.com/ewmag/20/Contamination.html These two documents have information on surface preparation for bonding. I built several glued together aluminum fuel tanks and discovered that I could consistently make a glue joint fail if I wiped the joint surfaces with acetone or alcohol after etching and rinsing with water. So I stopped solvent wiping. I never tried MEK. Here are two of my tanks: http://home.teleport.com/~guynoir/re...edinterior.JPG |
#12
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Those should give me pretty good range!
What are those tanks for? -- Dan D. .. "guynoir" wrote in message nk.net... Read about "water break" testing and solvent cleaning. http://www.lmaeronautics.com/materia...docs/pg054.pdf http://www.westsystem.com/ewmag/20/Contamination.html These two documents have information on surface preparation for bonding. I built several glued together aluminum fuel tanks and discovered that I could consistently make a glue joint fail if I wiped the joint surfaces with acetone or alcohol after etching and rinsing with water. So I stopped solvent wiping. I never tried MEK. Here are two of my tanks: http://home.teleport.com/~guynoir/re...edinterior.JPG |
#13
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"Veeduber" wrote in message ... What are PKs? ----------------------------------------------- Hex head sheet metal screws with an attached, non-marring washer. PK's are what the world used before clecos. Do a google for 'Riveting 101,' see if you find anything of interest. -R.S.Hoover Gosh, Veeduber, you're the natural successor to Tony Bingelis. I just read the first of your three articles on Riveting 101 at Ron Wanttaja's website: http://home1.gte.net/ikvamar/avlinks/. Excellent. |
#14
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They were originally made by BHC, the British Hovercraft Corporation, so
I presume they were originally for hovercraft. I don't know how they ended up in Boeing helicopters, which is what the photo shows, but two 500 gallon internal tanks work better than two 1000 gallon external tanks when the helicopter is used for logging. I built 5 from scratch using BHC drawings, and I converted several original BHC tanks from bladder to wet cell. (In between other projects, of course). Four out of the five were in aircraft which have crashed and burned. So it goes. Blueskies wrote: Those should give me pretty good range! What are those tanks for? |
#15
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Columbia Helicopters?
-- Dan D. .. "guynoir" wrote in message ink.net... They were originally made by BHC, the British Hovercraft Corporation, so I presume they were originally for hovercraft. I don't know how they ended up in Boeing helicopters, which is what the photo shows, but two 500 gallon internal tanks work better than two 1000 gallon external tanks when the helicopter is used for logging. I built 5 from scratch using BHC drawings, and I converted several original BHC tanks from bladder to wet cell. (In between other projects, of course). Four out of the five were in aircraft which have crashed and burned. So it goes. Blueskies wrote: Those should give me pretty good range! What are those tanks for? |
#16
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Yes.
Blueskies wrote: Columbia Helicopters? |
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