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Pat Reilly
Joined: 06 Aug 2009
Posts: 345
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 Posted: Wed Jan 20, 2010 2:12 pm Post subject: Corrosion Protection for Flaperons? |
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Lynn, My plane does not have drain holes in the flaperons. Seeing the openings at the bearings they could collect a significant amount of water. How many and where are the drain holes placed in the flaperons. My builders manual is at the hangar.
Pat Reilly
Mod 3 582 Rebuild
Rockford, IL
On Wed, Jan 20, 2010 at 11:00 AM, Lynn Matteson <lynnmatt(at)jps.net (lynnmatt(at)jps.net)> wrote:
[quote]--> Kitfox-List message posted by: Lynn Matteson <lynnmatt(at)jps.net (lynnmatt(at)jps.net)>
You're welcome, Travis.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 840.4 hrs
Countdown to 1000 hrs~159 to go
Sensenich 62"x46" Wood prop
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying (and learning)
do not archive
On Jan 20, 2010, at 11:47 AM, FlyboyTR wrote:
| Quote: | --> Kitfox-List message posted by: "FlyboyTR" <flyboytr(at)bellsouth.net (flyboytr(at)bellsouth.net)>
Lynn,
Thanks for that info. I believe each aileron cavity is sealed (at least on my plane). I think the epoxy extends all the way to the trailing edge.
My wings do have the drain holes along the trailing edge/bottom. Thanks again!
Travis 
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Lynn Matteson
Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan
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| Posted: Wed Jan 20, 2010 3:16 pm Post subject: Corrosion Protection for Flaperons? |
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I'll just copy here what I posted a few days earlier:
they say a 3/16" hole "in the bottom skin aft of each hinge, about
3/4" ahead of the trailing edge for a moisture drain hole." I think
I was thinking of the drain holes in the wing fabric. So the manual
must not think that's there's an appreciable amount of moisture
collecting inside the individual bays of the flaperon. Or they have a
channel that would allow for the flow of moisture between the bays/
cavities.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 840.4 hrs
Countdown to 1000 hrs~159 to go
Sensenich 62"x46" Wood prop
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying (and learning)
On Jan 20, 2010, at 5:11 PM, Patrick Reilly wrote:
| Quote: | Lynn, My plane does not have drain holes in the flaperons. Seeing
the openings at the bearings they could collect a significant
amount of water. How many and where are the drain holes placed in
the flaperons. My builders manual is at the hangar.
Pat Reilly
Mod 3 582 Rebuild
Rockford, IL
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_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM |
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Pat Reilly
Joined: 06 Aug 2009
Posts: 345
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| Posted: Thu Jan 21, 2010 9:09 am Post subject: Corrosion Protection for Flaperons? |
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Lynn, Thanks for info.That makes sense, opposite the hinge where the water would enter. I will drill them today.
do not archive
Pat Reilly
Mod 3 582 Rebuild
Rockford, IL
On Wed, Jan 20, 2010 at 5:13 PM, Lynn Matteson <lynnmatt(at)jps.net (lynnmatt(at)jps.net)> wrote:
[quote] --> Kitfox-List message posted by: Lynn Matteson <lynnmatt(at)jps.net (lynnmatt(at)jps.net)>
I'll just copy here what I posted a few days earlier:
they say a 3/16" hole "in the bottom skin aft of each hinge, about 3/4" ahead of the trailing edge for a moisture drain hole." I think I was thinking of the drain holes in the wing fabric. So the manual must not think that's there's an appreciable amount of moisture collecting inside the individual bays of the flaperon. Or they have a channel that would allow for the flow of moisture between the bays/cavities.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 840.4 hrs
Countdown to 1000 hrs~159 to go
Sensenich 62"x46" Wood prop
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying (and learning)
On Jan 20, 2010, at 5:11 PM, Patrick Reilly wrote:
| Quote: | Lynn, My plane does not have drain holes in the flaperons. Seeing the openings at the bearings they could collect a significant amount of water. How many and where are the drain holes placed in the flaperons. My builders manual is at the hangar.
Pat Reilly
Mod 3 582 Rebuild
Rockford, IL
|
ubscription,
www.matronics.com/Navigator?Kitfox-List" target="_blank">http://www.matronics.com/Navigator?Kitfox-List
ronics.com/" target="_blank">http://forums.matronics.com
Matt Dralle, List Admin.
=====
[b]
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dave
Joined: 22 Sep 2006
Posts: 1382
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| Posted: Thu Jan 21, 2010 9:23 am Post subject: Corrosion Protection for Flaperons? |
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I would do more than just at the hinges. The flapperons tilt inboad on the plane with wings folder out. Water can travel past the foam ribs as they are not watertight between each other.
Best thing to do it fill the flapperon and see where it collects. You will hear it sloshing around and drill according to where it collects. Would that not be a surprise for you to go flying and find a heavy flapperon huh ?
I had a wet flapperon freeze up on me a few weeks ago on a test flight. Really sucked to have no roll control for a bit until I broke it free. Woulda been fun to land with just rudder.
For the record on your walkaround you should be checking all drain holes for water anyhow and restrictions. Justd casue you gota hole there does not mean you don't have water collected there. I once had afew gallons in a c 185 in the tail collected there , the drain holes were all clogged up woth bird nests etc.
Dave
Realtime Kitfox movies to separate the internet chatter from the truth
http://www.youtube.com/profile_videos?user=kitfoxflyer
[quote] ---
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_________________
Realtime Kitfox movies to separate the internet chatter from the truth
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Pat Reilly
Joined: 06 Aug 2009
Posts: 345
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| Posted: Thu Jan 21, 2010 9:43 am Post subject: Corrosion Protection for Flaperons? |
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Dave, OK. thanks for opinion. I will drill a few extra holes but will probably skip the filling with water. I did drill 3 drain holes in the Lowell Fitt trim tab on the elevator. It had been out in a very light rain and had collected some water. Lowell you might want to put out an AD to drill drain holes in that tab.
Pat Reilly
Mod 3 582 Rebuild
Rockford,IL
On Thu, Jan 21, 2010 at 11:22 AM, Dave Fisher <dave(at)cfisher.com (dave(at)cfisher.com)> wrote:
[quote] I would do more than just at the hinges. The flapperons tilt inboad on the plane with wings folder out. Water can travel past the foam ribs as they are not watertight between each other.
Best thing to do it fill the flapperon and see where it collects. You will hear it sloshing around and drill according to where it collects. Would that not be a surprise for you to go flying and find a heavy flapperon huh ?
I had a wet flapperon freeze up on me a few weeks ago on a test flight. Really sucked to have no roll control for a bit until I broke it free. Woulda been fun to land with just rudder.
For the record on your walkaround you should be checking all drain holes for water anyhow and restrictions. Justd casue you gota hole there does not mean you don't have water collected there. I once had afew gallons in a c 185 in the tail collected there , the drain holes were all clogged up woth bird nests etc.
Dave
Realtime Kitfox movies to separate the internet chatter from the truth
http://www.youtube.com/profile_videos?user=kitfoxflyer
[quote]
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Tom Jones
Joined: 12 Mar 2006
Posts: 752
Location: Ellensburg, WA
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| Posted: Thu Jan 21, 2010 12:11 pm Post subject: Re: Corrosion Protection for Flaperons? |
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Correction, I drilled one hole in each hinge bay and one hole in first bays on each Side of the hinge bays. I figured if water got into the bay next to the hinge bay it wouldn't get any further with a drain hole there.
The foam ribs are only about 4 inches apart, so 36 rib bays. that would be a lot of holes if you drilled each one.
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Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA |
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