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DVanvoorhi(at)aol.com
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 Posted: Sun Apr 09, 2006 3:58 pm Post subject: Smiles |
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I mishandled the nose skin on my 601 HD and generated several "smiles" (or
maybe they should be called "frowns"). Is there anything that can be done to
remove them before installing the piece? Is it better to live with them now
and take them out with filler after installation?
Dirk Van Voorhis (scratch building in Riverside CA)
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frank.hinde(at)hp.com
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| Posted: Sun Apr 09, 2006 4:11 pm Post subject: Smiles |
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Depends on if you intend to paint the aircraft or not...If you are then
you just have a short term feature.
If you intend t leave it bare you will have a permanent feature....I
doubt there is any way to remove the frowns.
Frank 601HDS 394 hours
Do not archive
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pmaxpmax(at)hotmail.com
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| Posted: Sun Apr 09, 2006 4:13 pm Post subject: Smiles |
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I had the same problem on my leading edges of my wings. Bill Clapp, Corvair
Aviator and Car Restorer, gently worked them out by flexing the metal with a
small suction cup. After flexing it many times, it came close to being like
new. My leading edges are now polished and look OK.
Phil Maxson
601XL/Corvair
| Quote: | From: DVanvoorhi(at)aol.com
Subject: Smiles
Date: Sun, 9 Apr 2006 19:57:07 EDT
I mishandled the nose skin on my 601 HD and generated several "smiles" (or
maybe they should be called "frowns"). Is there anything that can be done
to
remove them before installing the piece? Is it better to live with them
now
and take them out with filler after installation?
Dirk Van Voorhis (scratch building in Riverside CA)
|
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pilotdna(at)hotmail.com
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| Posted: Sun Apr 09, 2006 8:58 pm Post subject: Smiles |
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If by smiles you mean small creases/dings, I found that the suggestion in
the rudder construction manual of pressing and rolling a regular steel spoon
(from your kitchen, not a special tool) on the back side of the metal will
work them right out. That was on .016 though, I haven't progressed as far
as the fuselage yet so I don't know how thick your part is. I suspect .025
is still workable with this method (and a strong thumb to push into the
spoon.)
I learned this after my first shipment of metal from Aircraft Spruce arrived
poorly crated and dinged to garbage, and they refused to take it back after
numerous phone calls. I got the piece I wanted to use for my stab skin
satisfactorily straight with the spoon method (backed by plywood while
"spooning" out the dings), and found that it turns a real crease into a
barely visible wavy spot that you wouldn't notice without really looking for
it. Sure beat not building for a year while saving pennies for more metal
(I'm a 20 year old engineering student).
Do Not Archive (or order metal from Aircraft spruce!)
Douglas Eatman
601XL scrap build/corvair
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larry(at)macsmachine.com
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| Posted: Mon Apr 10, 2006 5:36 am Post subject: Smiles |
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Dirk,
I'd consider tracing it to another piece and make another at this point
if you've not attached it.
Another consideration, you might want to make the forward top skin
removable for access to your
panel etc. As scratch builder, you've an advantage in deciding these
things. I've got most of the detail
covered on my website that shows how it's done. The FW top skin has
been off a good number of times
since the Airworthiness and paid its value the first time it had to come
off.
If you need more info on this just ask.
Good luck,
Larry McFarland - 601HDS at www.macsmachine.com
DVanvoorhi(at)aol.com wrote:
| Quote: |
I mishandled the nose skin on my 601 HD and generated several "smiles" (or
maybe they should be called "frowns"). Is there anything that can be done to
remove them before installing the piece? Is it better to live with them now
and take them out with filler after installation?
Dirk Van Voorhis (scratch building in Riverside CA)
|
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hrs1(at)frontiernet.net
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| Posted: Mon Apr 10, 2006 11:35 am Post subject: Smiles |
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Dirk . . be sure to check the archives. This subject has been discussed in
detail several times since I joined the list about 4 years ago. I use the
spoon technique with about 90% satisfaction, but I believe there was an
alternate technique posted within the past 6 months or so which looked
interesting. Robert Schoenberger 701 Do not archive
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