Finger Screens

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Includes: Highlander, Escapade, Summit and SuperSTOL.
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Clark in AZ
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Posts: 356
Joined: Wed Oct 07, 2015 11:40 am
Location: Cave Creek, AZ

Finger Screens

Post by Clark in AZ »

Anyone NOT using the finger screens in the wing tanks? Just curious.

Thanks,
Clark
Building SuperSTOL Kit 512
Cave Creek, AZ
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FlyerChief
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Posts: 290
Joined: Tue Nov 03, 2009 9:53 pm
Location: Ontario, Canada

Re: Finger Screens

Post by FlyerChief »

I'm curious about the same thing it seems...
I posted this in another thread, but no takers, so I'll try again...

Just as a matter of interest...
Has anyone with the new aluminum tanks noticed any galvanic corrosion between the tanks and the brass finger strainers?
The aluminum tank is relatively much more anodic than the brass, so it would normally experience more corrosion on the threads where the strainer threads in.
It is possible that because the aluminum tank is so much more massive than the brass fitting that it won't experience any concentrated corrosion but I'm interested in finding out if anyone has noticed any corrosion on the threads during their annual inspection when the strainers are removed, inspected and cleaned.
Thanks,
Dan
When everything seems to be going against you, remember that the airplane takes off against the wind, not with it. ~Henry Ford
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BDA
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Posts: 707
Joined: Mon Aug 22, 2016 11:25 am
Location: Kenai Alaska

Re: Finger Screens

Post by BDA »

Mine have not been in long enough to know yet...

But I think your idea about mass is correct.

In the oilfield if we put a steel fitting in a Stainless steel system, the steel fitting will corrode away completly. But if you put a stainless steel fitting in a steel system there are no problems.
SuperStol XL Alaskan With Titan 340
N331AK. Shawn Taplin
Wing extensions,Symetrical Airfoil tail ribs (NACA 21)
Mods in progress: Heavier struts, Double slotted flaps
Goal: 15mph no wind
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