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patreilly43(at)hotmail.co
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 Posted: Sat Jan 19, 2008 1:33 pm Post subject: Aluminum Belly Pan |
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Kitfoxers, has anybody put an aluminum belly pan under the cabin? Would .025 thick add too much weight?
Pat Reilly
Mod 3 Rebuild
Rockford, IL
[quote][b]
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darinh
Joined: 20 Apr 2006
Posts: 327
Location: Utah
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| Posted: Sat Jan 19, 2008 6:19 pm Post subject: Re: Aluminum Belly Pan |
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Pat,
I seriously considered this mod also but have yet to do it. Most of my flying will be off unimproved strips in Utah and Idaho and I think this would be a great mod. The way I would think best to attach the skins would be to fab up some small brackets to attach to the tubing and then rivet the skins to that. Someone suggested that I simply drill through the bottom of the tubing and rivet to that but that would not be the best idea. I doubt this would add much more than a couple pounds.
Let us know how it turns out if you decide to make the mod.
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_________________
Darin Hawkes
Series 7
914 Turbo
Kaysville, Utah |
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john(at)leptron.com
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| Posted: Sat Jan 19, 2008 8:46 pm Post subject: Aluminum Belly Pan |
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Pat,
If I had to do it over again, I would put an aluminum pan under the cabin.
John Oakley
912 speedster cap
From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Pat Reilly
Sent: Saturday, January 19, 2008 2:30 PM
To: kitfox-list(at)matronics.com
Subject: Aluminum Belly Pan
Kitfoxers, has anybody put an aluminum belly pan under the cabin? Would .025 thick add too much weight?
Pat Reilly
Mod 3 Rebuild
Rockford, IL
| Quote: | | http://www.matronics.com/Navigator?Kitfox-List |
0123456789
[quote][b]
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michaega(at)verizon.net
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| Posted: Sat Jan 19, 2008 9:33 pm Post subject: Aluminum Belly Pan |
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What would be the purpose of a aluminum pan under the cabin and would you cover it all. I'm at the point of covering now.
---
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wingsdown(at)verizon.net
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| Posted: Sun Jan 20, 2008 6:12 am Post subject: Aluminum Belly Pan |
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Unless it was to provide attachment/ mounting points it would only need to be half that thick if that. Most likely it would provide better resistance to tear or penetration from from rock and debris wash. Unless you are going to be a serious off field flyer why bother. On the other hand with some ingenuity a removable panel would allow further inspection access points.
Rick
--
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dave
Joined: 22 Sep 2006
Posts: 1382
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Lynn Matteson
Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan
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| Posted: Sun Jan 20, 2008 7:48 am Post subject: Aluminum Belly Pan |
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I have a Grove gear, and it seems like there must be a bit of drag on
that, where the air passes between the belly of the plane and the
gear. I have thought of putting a belly pan in that area, using the
screws that hold the bottom portion of the firewall...the horizontal
"flap"...to hold the front of the belly pan. My notion was to remove
the screws, slide the front of the belly pan under the firewall flap,
and screw it back down. then slope the belly pan down under the Grove
gear, and then back up to the fuse. I'd make the whole thing about 2
feet long, and this would streamline, to some extent, the Grove gear.
I haven't worked it all out in my mind yet, but the sides could be
formed up, I'm thinking, to cover the gear attaching brackets, and
fair those in as well. The biggest problem as I see it would be
attaching the rear of the pan to the fuse. Maybe some brackets
epoxied inside the fuse to the crosstubes would work. A belly pan in
this area would ease cleanup in this area as well.
A fellow lister has a Model V, and the builder of that plane actually
did some structural work in that area...Grove gear...to fair in the
belly of the plane, and enclose the gear at that point. Danny, Deke,
or Duane might want to shed some light on this, Danny especially.
Lynn Matteson
Grass Lake, Michigan
Kitfox IV Speedster w/Jabiru 2200
flying w/460+ hrs
On Jan 19, 2008, at 11:44 PM, john oakley wrote:
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_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM |
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patreilly43(at)hotmail.co
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| Posted: Sun Jan 20, 2008 7:55 am Post subject: Aluminum Belly Pan |
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Dave, Thanks for the reply. I am going to "armour" the belly. I will use .016 or.020 instead of the .025. It just looks like a natural flat area and the weight is minimal. It gives access to the underside if needed. Oatley replied that he wished he had installed a removable aluminum belly pan on his. Pat Reilly Mod 3 Rebuild Rockford, IL
| Quote: | Subject: Re: Aluminum Belly Pan
From: dave(at)cfisher.com
Date: Sun, 20 Jan 2008 06:50:36 -0800
To: kitfox-list(at)matronics.com
--> Kitfox-List message posted by: "dave" <dave(at)cfisher.com>
I think that I would be more concerned about the radiator on the Rotax installs catching debris than the fabric. And if you want a "skid plate " just use somthing thin like 016 and ADEL clamps.
when you get done armouring your aircraft get some film of why you need it , that would be the best part to see what you are doing to warrant this 
--------
Rotax Dealer, Ontario Canada
Flying Videos and Kitfox Info
http://www.cfisher.com/
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=159360#159360
=======================
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&g==================
[quote]
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patreilly43(at)hotmail.co
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| Posted: Sun Jan 20, 2008 7:57 am Post subject: Aluminum Belly Pan |
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Rick, Thanks for the reply. I will use .016 or.020. Oakley says he wished he had installed a removable belly pan. Pat Reilly Mod 3 Rebuild Rockford,IL
[quote] Date: Sun, 20 Jan 2008 06:03:17 -0800
From: wingsdown(at)verizon.net
Subject: FW: Aluminum Belly Pan
To: kitfox-list(at)matronics.com
.ExternalClass DIV {;} Unless it was to provide attachment/ mounting points it would only need to be half that thick if that. Most likely it would provide better resistance to tear or penetration from from rock and debris wash. Unless you are going to be a serious off field flyer why bother. On the other hand with some ingenuity a removable panel would allow further inspection access points.
Rick
--
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dan(at)azshowersolutions.
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| Posted: Sun Jan 20, 2008 8:12 am Post subject: Aluminum Belly Pan |
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One alternative is to make the firewall / pan in one piece so it wraps underneath. Yes, it is a little more weight than the aluminum...however, it seals the cabin a little better from the engine area. Provides more fire protection. Should the plane ever be skidding along the ground going over brush, snags, etc..would be nice to have that extra protection underneath as well. Mine wraps under and covers the length of the floorboard. http://www.azshowersolutions.com/Engine1.html
Dan B
Mesa, AZ
314DW Covering
john oakley <john(at)leptron.com> wrote:
[quote] v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> st1\:*{behavior:url(#default#ieooui) } Pat,
If I had to do it over again, I would put an aluminum pan under the cabin.
John Oakley
912 speedster cap
From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Pat Reilly
Sent: Saturday, January 19, 2008 2:30 PM
To: <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />kitfox-list(at)matronics.com
Subject: Aluminum Belly Pan
Kitfoxers, has anybody put an aluminum belly pan under the cabin? Would .025 thick add too much weight?
Pat Reilly
Mod 3 Rebuild
Rockford, IL
| Quote: | | http://www.matronics.com/Navigator?Kitfox-List |
0123[quote][b]
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patreilly43(at)hotmail.co
Guest
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| Posted: Sun Jan 20, 2008 8:28 am Post subject: Aluminum Belly Pan |
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Dan, Thanks for the reply. I will be installing an aluminum belly pan. Pat Reilly Mod 3 Rebuild Rockford,IL
[quote] Date: Sun, 20 Jan 2008 08:09:31 -0800
From: dan(at)azshowersolutions.com
Subject: RE: Aluminum Belly Pan
To: kitfox-list(at)matronics.com
One alternative is to make the firewall / pan in one piece so it wraps underneath. Yes, it is a little more weight than the aluminum...however, it seals the cabin a little better from the engine area. Provides more fire protection. Should the plane ever be skidding along the ground going over brush, snags, etc..would be nice to have that extra protection underneath as well. Mine wraps under and covers the length of the floorboard. http://www.azshowersolutions.com/Engine1.html
Dan B
Mesa, AZ
314DW Covering
john oakley <john(at)leptron.com> wrote:
| Quote: | .ExternalClass .EC_shape {;} .ExternalClass EC_p.MsoNormal, .ExternalClass EC_li.MsoNormal, .ExternalClass EC_div.MsoNormal {margin-bottom:.0001pt;font-size:12.0pt;font-family:'Times New Roman';} .ExternalClass a:link, .ExternalClass EC_span.MsoHyperlink {color:blue;text-decoration:underline;} .ExternalClass a:visited, .ExternalClass EC_span.MsoHyperlinkFollowed {color:blue;text-decoration:underline;} .ExternalClass pre {margin-bottom:.0001pt;font-size:10.0pt;font-family:'Courier New';} .ExternalClass EC_span.EmailStyle18 {font-family:Arial;color:navy;} (at)page Section1 {size:8.5in 11.0in;} .ExternalClass EC_div.Section1 {page:Section1;} Pat,
If I had to do it over again, I would put an aluminum pan under the cabin.
John Oakley
912 speedster cap
From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Pat Reilly
Sent: Saturday, January 19, 2008 2:30 PM
To: kitfox-list(at)matronics.com
Subject: Aluminum Belly Pan
Kitfoxers, has anybody put an aluminum belly pan under the cabin? Would .025 thick add too much weight?
Pat Reilly
Mod 3 Rebuild
Rockford, IL
| Quote: |
arget=_blank>http://www.matronics.com/Navigator?Kitfox-List
p://forums.matronics.com
blank>http://www.matronics.com/contribution
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[b]
| | - The Matronics Kitfox-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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henrysfork1(at)msn.com
Guest
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| Posted: Sun Jan 20, 2008 8:44 am Post subject: Aluminum Belly Pan |
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<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]--> I really like this idea wished I would have thought of it.
Dee
Do not archive
[quote] ---
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patreilly43(at)hotmail.co
Guest
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| Posted: Sun Jan 20, 2008 8:47 am Post subject: Aluminum Belly Pan |
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Lynn, Thanks for reply. I am definitly installing an aluminum belly pan. What about pop riveting or screwing the pan to the fusalage tubing, similar to the screws at the front, at the rear. I am going to mount the front as you mentioned, slide it under the bottom of the firewall. I saw your picture on the Kitfox factory website, nice looking plane. Pat Reilly Mod 3 rebuild Rockford, IL
[quote] From: lynnmatt(at)jps.net
Subject: Re: Aluminum Belly Pan
Date: Sun, 20 Jan 2008 10:31:56 -0500
To: kitfox-list(at)matronics.com
--> Kitfox-List message posted by: Lynn Matteson <lynnmatt(at)jps.net>
I have a Grove gear, and it seems like there must be a bit of drag on
that, where the air passes between the belly of the plane and the
gear. I have thought of putting a belly pan in that area, using the
screws that hold the bottom portion of the firewall..the horizontal
"flap"...to hold the front of the belly pan. My notion was to remove
the screws, slide the front of the belly pan under the firewall flap,
and screw it back down. then slope the belly pan down under the Grove
gear, and then back up to the fuse. I'd make the whole thing about 2
feet long, and this would streamline, to some extent, the Grove gear.
I haven't worked it all out in my mind yet, but the sides could be
formed up, I'm thinking, to cover the gear attaching brackets, and
fair those in as well. The biggest problem as I see it would be
attaching the rear of the pan to the fuse. Maybe some brackets
epoxied inside the fuse to the crosstubes would work. A belly pan in
this area would ease cleanup in this area as well.
A fellow lister has a Model V, and the builder of that plane actually
did some structural work in that area...Grove gear...to fair in the
belly of the plane, and enclose the gear at that point. Danny, Deke,
or Duane might want to shed some light on this, Danny especially.
Lynn Matteson
Grass Lake, Michigan
Kitfox IV Speedster w/Jabiru 2200
flying w/460+ hrs
On Jan 19, 2008, at 11:44 PM, john oakley wrote:
> Pat,
>
> If I had to do it over again, I would put an aluminum pan under the
> cabin.
>
>
>
> John Oakley
>
> 912 speedster cap
>
>
>
> From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-
> list-server(at)matronics.com] On Behalf Of Pat Reilly
> Sent: Saturday, January 19, 2008 2:30 PM
> To: kitfox-list(at)matronics.com
> Subject: Aluminum Belly Pan
>
>
>
> Kitfoxers, has anybody put an aluminum belly pan under the cabin?
> Would .025 thick add too much weight?
>
>
>
> Pat Reilly
>
> Mod 3 Rebuild
>
> Rockford, IL
>
> http://www.matronics.com/Navigator?Kitfox-Listhttp://
> forums.matronics.comhttp://www.matronics.com/contribution
> http://www.matronics.com/Navigator?Kitfox-List_-
> =================================== _-
> forums.matronics.com_-
> =================================== _-
> contribution_-
> ===================================>
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patreilly43(at)hotmail.co
Guest
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| Posted: Sun Jan 20, 2008 8:55 am Post subject: Aluminum Belly Pan |
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John, The purpose of the aluminum belly pan is to protect that area from puncture by debris in off field landing and allow access by removable belly pan. No, I will not cover or paint it. I will use a clad aluminum. After the response to this question, I will definitely use an aluminum, either .020 or .016 clad, belly pan. Pat REilly Mod 3 Rebuild Rockford, IL
[quote] Date: Sat, 19 Jan 2008 21:25:32 -0800
From: michaega(at)verizon.net
Subject: Re: Aluminum Belly Pan
To: kitfox-list(at)matronics.com
.ExternalClass DIV {;} What would be the purpose of a aluminum pan under the cabin and would you cover it all. I'm at the point of covering now.
---
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http://www.matronics.com/Navigator?Kitfox-List |
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patreilly43(at)hotmail.co
Guest
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| Posted: Sun Jan 20, 2008 9:01 am Post subject: Aluminum Belly Pan |
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John, Thanks for your response. I will fabricate an aluminum belly pan. I will use .020 or.016 clad aluminum. Pat Reilly Mod 3 Rebuild Rockford, IL
[quote] From: john(at)leptron.com
To: kitfox-list(at)matronics.com
Subject: RE: Kitfox-List: Aluminum Belly Pan
Date: Sat, 19 Jan 2008 21:44:19 -0700
.ExternalClass .EC_shape {;} .ExternalClass EC_p.MsoNormal, .ExternalClass EC_li.MsoNormal, .ExternalClass EC_div.MsoNormal {margin-bottom:.0001pt;font-size:12.0pt;font-family:'Times New Roman';} .ExternalClass a:link, .ExternalClass EC_span.MsoHyperlink {color:blue;text-decoration:underline;} .ExternalClass a:visited, .ExternalClass EC_span.MsoHyperlinkFollowed {color:blue;text-decoration:underline;} .ExternalClass pre {margin-bottom:.0001pt;font-size:10.0pt;font-family:'Courier New';} .ExternalClass EC_span.EmailStyle18 {font-family:Arial;color:navy;} (at)page Section1 {size:8.5in 11.0in;} .ExternalClass EC_div.Section1 {page:Section1;}
Pat,
If I had to do it over again, I would put an aluminum pan under the cabin.
John Oakley
912 speedster cap
From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Pat Reilly
Sent: Saturday, January 19, 2008 2:30 PM
To: kitfox-list(at)matronics.com
Subject: Aluminum Belly Pan
Kitfoxers, has anybody put an aluminum belly pan under the cabin? Would .025 thick add too much weight?
Pat Reilly
Mod 3 Rebuild
Rockford, IL
| Quote: | | http://www.matronics.com/contribution |
0
1[b]
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patreilly43(at)hotmail.co
Guest
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| Posted: Sun Jan 20, 2008 9:19 am Post subject: Aluminum Belly Pan |
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Darin, I too plan to do alot of off field flying, although I don't have the opportunity here in IL you have out there. I will slide the pan under the bottom of the firewall and rivet or screw it to the fusalage tube the same way the existing firewall is attached. Why are you adverse to pop riveting with 3/32 rivets into the fusalage tubing? Are you afraid of weakening the tube? The bottom of the firewall is attached this way. Pat Reilly Mod 3 Rebuild Rockford, IL
| Quote: | Subject: Re: Aluminum Belly Pan
From: gerns25(at)netscape.net
Date: Sat, 19 Jan 2008 18:19:18 -0800
To: kitfox-list(at)matronics.com
--> Kitfox-List message posted by: "darinh" <gerns25(at)netscape.net>
Pat,
I seriously considered this mod also but have yet to do it. Most of my flying will be off unimproved strips in Utah and Idaho and I think this would be a great mod. The way I would think best to attach the skins would be to fab up some small brackets to attach to the tubing and then rivet the skins to that. Someone suggested that I simply drill through the bottom of the tubing and rivet to that but that would not be the best idea. I doubt this would add much more than a couple pounds.
Let us know how it turns out if you decide to make the mod.
--------
Darin Hawkes
Series 7 (under Construction)
914 Turbo
Kaysville, Utah
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=159305#159305
&==========
|
[quote]
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Lynn Matteson
Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan
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| Posted: Sun Jan 20, 2008 10:44 am Post subject: Aluminum Belly Pan |
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Thanks, Pat.
I get nervous about screwing right into the structural fuselage
tubing. I'd rather epoxy some brackets to the tubing, so that the
"structural integrity" [don't know what that means, but it sounds
important : ) ] isn't compromised/weakened. You could epoxy a pre-
drilled bracket(s) to the tubing, then put a hole right through the
fabric, and this would mount the belly pan.
I would make a question-mark shaped bracket, and drill some holes
into the rounded part of the bracket. When you epoxy the bracket in
place, the epoxy oozes through the holes, and helps hold the bracket
to the tubing. Maybe single-screw brackets, or some wide brackets, so
that a couple of screws could be used in each bracket, cutting down
on the number of brackets needed to be epoxied on.
Hey, I just thought of something...Gardner-Bender of Milwaukee, WI,
makes EZ-Cable Clips in various sizes. I found then at a hardware
store in the electrical department.I have some made from aluminum,
and they'd be almost perfect, if bent to shape. I would use anchor
nuts riveted onto the clips, (before gluing the clips in place) and
then use machine screws to secure the belly pan.
Lynn Matteson
Grass Lake, Michigan
Kitfox IV Speedster w/Jabiru 2200
flying w/460+ hrs
On Jan 20, 2008, at 11:38 AM, patrick reilly wrote:
| Quote: | Lynn, Thanks for reply. I am definitly installing an aluminum belly
pan. What about pop riveting or screwing the pan to the fusalage
tubing, similar to the screws at the front, at the rear. I am going
to mount the front as you mentioned, slide it under the bottom of
the firewall. I saw your picture on the Kitfox factory website,
nice looking plane. Pat Reilly Mod 3 rebuild Rockford, IL
> From: lynnmatt(at)jps.net
> Subject: Re: Aluminum Belly Pan
> Date: Sun, 20 Jan 2008 10:31:56 -0500
> To: kitfox-list(at)matronics.com
>
>
>
> I have a Grove gear, and it seems like there must be a bit of
drag on
> that, where the air passes between the belly of the plane and the
> gear. I have thought of putting a belly pan in that area, using the
> screws that hold the bottom portion of the firewall...the horizontal
> "flap"...to hold the front of the belly pan. My notion was to remove
> the screws, slide the front of the belly pan under the firewall
flap,
> and screw it back down. then slope the belly pan down under the
Grove
> gear, and then back up to the fuse. I'd make the whole thing about 2
> feet long, and this would streamline, to some extent, the Grove
gear.
> I haven't worked it all out in my mind yet, but the sides could be
> formed up, I'm thinking, to cover the gear attaching brackets, and
> fair those in as well. The biggest problem as I see it would be
> attaching the rear of the pan to the fuse. Maybe some brackets
> epoxied inside the fuse to the crosstubes would work. A belly pan in
> this area would ease cleanup in this area as well.
>
> A fellow lister has a Model V, and the builder of that plane
actually
> did some structural work in that area...Grove gear...to fair in the
> belly of the plane, and enclose the gear at that point. Danny, Deke,
> or Duane might want to shed some light on this, Danny especially.
>
> Lynn Matteson
> Grass Lake, Michigan
> Kitfox IV Speedster w/Jabiru 2200
> flying w/460+ hrs
>
>
>
> On Jan 19, 2008, at 11:44 PM, john oakley wrote:
>
> > Pat,
> >
> > If I had to do it over again, I would put an aluminum pan under
the
> > cabin.
> >
> >
> >
> > John Oakley
> >
> > 912 speedster cap
> >
> >
> >
> > From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-
> > list-server(at)matronics.com] On Behalf Of Pat Reilly
> > Sent: Saturday, January 19, 2008 2:30 PM
> > To: kitfox-list(at)matronics.com
> > Subject: Aluminum Belly Pan
> >
> >
> >
> > Kitfoxers, has anybody put an aluminum belly pan under the cabin?
> > Would .025 thick add too much weight?
> >
> >
> >
> > Pat Reilly
> >
> > Mod 3 Rebuild
> >
> > Rockford, IL
> >
> > http://www.matronics.com/Navigator?Kitfox-Listhttp://
> > forums.matronics.comhttp://www.matronics.com/contribution
> > http://www.matronics.com/Navigator?Kitfox-List_-
> > =================================== _-
> > forums.matronics.com_-
> > =================================== _-
> > contribution_-
> > ===================================>
>
>
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Lynn
Kitfox IV-Jabiru 2200
N369LM |
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john(at)leptron.com
Guest
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| Posted: Sun Jan 20, 2008 10:47 am Post subject: Aluminum Belly Pan |
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|
Pat,
I would also build an attachment system so I did not have to get into the tubes. I used that idea on the entire project. The planes I have worked on in the past all were affected by drilling and letting in moisture.
John Oakley
Speedster 4 912ul and cap
From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of patrick reilly
Sent: Sunday, January 20, 2008 9:56 AM
To: kitfox-list(at)matronics.com
Subject: RE: Aluminum Belly Pan
John, Thanks for your response. I will fabricate an aluminum belly pan. I will use .020 or.016 clad aluminum. Pat Reilly Mod 3 Rebuild Rockford, IL
From: john(at)leptron.com
To: kitfox-list(at)matronics.com
Subject: RE: Aluminum Belly Pan
Date: Sat, 19 Jan 2008 21:44:19 -0700
Pat,
If I had to do it over again, I would put an aluminum pan under the cabin.
John Oakley
912 speedster cap
From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Pat Reilly
Sent: Saturday, January 19, 2008 2:30 PM
To: kitfox-list(at)matronics.com
Subject: Aluminum Belly Pan
Kitfoxers, has anybody put an aluminum belly pan under the cabin? Would .025 thick add too much weight?
Pat Reilly
Mod 3 Rebuild
Rockford, IL
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Lynn Matteson
Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan
|
| Posted: Sun Jan 20, 2008 10:47 am Post subject: Aluminum Belly Pan |
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|
Hi again, Pat-
When I built my IV, I used some sort of Tinnerman fastener and screws
going into, I believe, 6 tabs that are welded to a crosstube. This is
a factory tab, as I recall...getting old is HELL...can't seem to
recall just what the tab situation looks like, and the pictures I
took at that stage of building don't show enough details of this. But
I know that there was some sort of attaching tab already there. I
balked at EVER using sheet metal screws going directly into the
tubing. Maybe the Model III is slightly different.
Lynn Matteson
Grass Lake, Michigan
Kitfox IV Speedster w/Jabiru 2200
flying w/460+ hrs
On Jan 20, 2008, at 12:04 PM, patrick reilly wrote:
| Quote: | Darin, I too plan to do alot of off field flying, although I don't
have the opportunity here in IL you have out there. I will slide
the pan under the bottom of the firewall and rivet or screw it to
the fusalage tube the same way the existing firewall is attached.
Why are you adverse to pop riveting with 3/32 rivets into the
fusalage tubing? Are you afraid of weakening the tube? The bottom
of the firewall is attached this way. Pat Reilly Mod 3 Rebuild
Rockford, IL
> Subject: Re: Aluminum Belly Pan
> From: gerns25(at)netscape.net
> Date: Sat, 19 Jan 2008 18:19:18 -0800
> To: kitfox-list(at)matronics.com
>
>
>
> Pat,
>
> I seriously considered this mod also but have yet to do it. Most
of my flying will be off unimproved strips in Utah and Idaho and I
think this would be a great mod. The way I would think best to
attach the skins would be to fab up some small brackets to attach
to the tubing and then rivet the skins to that. Someone suggested
that I simply drill through the bottom of the tubing and rivet to
that but that would not be the best idea. I doubt this would add
much more than a couple pounds.
>
> Let us know how it turns out if you decide to make the mod.
>
> --------
> Darin Hawkes
> Series 7 (under Construction)
> 914 Turbo
> Kaysville, Utah
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=159305#159305
>
&==========
>
>
>
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darinh
Joined: 20 Apr 2006
Posts: 327
Location: Utah
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| Posted: Sun Jan 20, 2008 11:50 am Post subject: Re: Aluminum Belly Pan |
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Pat,
John hit one reason on the head and that is introducing moisture into the chromoly tubing. Once this steel gets wet, it will rust pretty fast and this will be corrosion you will never see until it is too late. Another reason is strength. I am a structural/Civil engineer and anytime you put a hole in something, you introduce concentrated stress points around the holes. Granted round holes are better than sharp edges but not hole is better. The tubing along the bottom of the fuse will see some pretty good loads especially while landing so I would go for a different attachment method. I would be easy enough to fab brackets that are glued with Hysol to the structure and then rivet or rivnut (that way it is removable) to those. The more I talk about this, the easier is seems like it would be and maybe I will undertake the mod as I am at that point now.
Dave,
I have seen sticks, rocks and other debris go through fabric many times. The desert environment of Southern Utah is especially notorious for this. Wheels often kick up rocks and alot of them are sharp shale and sandstone chips that are razor sharp.
I think adding the skin is a great idea!
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Darin Hawkes
Series 7
914 Turbo
Kaysville, Utah |
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