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Kitfox 5 1400 Gross Weight

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debrun26(at)juno.com
Guest

Posted: Thu Sep 28, 2006 10:27 pm Post subject: Kitfox 5 1400 Gross Weight

I just bought a KF5 with a gross of 1400lbs.  It was built in 1998 and I understand many other series 5's have a gross of 1550 lbs.  Is there any structural difference between the two?  Is there a way I could have mine bumped up to 1550 lbs?   Layne 



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    [quote][b]

ddsyverson(at)comcast.net
Guest

Posted: Fri Sep 29, 2006 12:56 pm Post subject: Kitfox 5 1400 Gross Weight

Layne,



There are at least two things that make the 1550 gross that I am aware of. 1) 

The thickness of the spar tubes. (0.065" for the 1550 vs 0.058" for the 

lighter spar tubes.) 2) The bolts which fasten fasten the lift strut brackets 

to lift struts - for the 1550 they are NAS standard which is distinguished by 

a dished top on the bolt head - if the bolt heads are not dished - they are 

not NAS. There may be other differences - I AM NOT SURE ABOUT OTHER 

DIFFERENCES. I would go completely through the paperwork for the airplane and 

try to figure out what spec this bird was designed to. Another deal you could 

work is check the list archives - this subject has been up before.



Another point - if the aircraft was registered as 1400 - that is your legal 

limit, unless it is amended.



If in doubt, you already know what to do.



Sincerely,



Dave S

St Paul, MN

M-7 nose dragger



Do Not Archive



On Friday 29 September 2006 1:25 am, debrun26(at)juno.com wrote:

 	  Quote: 	
		   I just bought a KF5 with a gross of 1400lbs.  It was built in 1998 and I

 understand many other series 5's have a gross of 1550 lbs.  Is there any

 structural difference between the two?  Is there a way I could have mine

 bumped up to 1550 lbs?   Layne

 ________________________________________________________________________

jdmcbean(at)cableone.net
Guest

Posted: Fri Sep 29, 2006 6:05 pm Post subject: Kitfox 5 1400 Gross Weight

First thing to check is the spar wall thickness.  Give me a shout at john(at)kitfoxaircraft.com (john(at)kitfoxaircraft.com)   

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-----Original Message-----

 From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com]On Behalf Of debrun26(at)juno.com

 Sent: Friday, September 29, 2006 12:25 AM

 To: kitfox-list(at)matronics.com

 Subject: Kitfox 5 1400 Gross Weight  

<![if !supportEmptyParas]> <![endif]>  

I just bought a KF5 with a gross of 1400lbs.  It was built in 1998 and I understand many other series 5's have a gross of 1550 lbs.  Is there any structural difference between the two?  Is there a way I could have mine bumped up to 1550 lbs?   Layne 

 

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kitfox(at)ida.net
Guest

Posted: Sat Sep 30, 2006 7:25 am Post subject: Kitfox 5 1400 Gross Weight

There is a kit manufacture date you can check. I  recieved mine in 96 and it is a 1400 lb. not to long after that they switched to  the 1500 lb. When I talked to Skystar about the upgrade they told me it was a  spar carry through tube and area that was the major change. It was thicker and  there was no way to up the gross on it. I did not chase any details after that.  The only thing for sure is the kit manufacture date for the 1400 to 1500. Not  much help. Good luck

 Albert

 5TD-NSI-T

   [quote][b]

janderson412(at)hotmail.c
Guest

Posted: Sat Sep 30, 2006 1:02 pm Post subject: Kitfox 5 1400 Gross Weight

My kit left the factory Nov 96 and is 1550 MAUW. My lit said spar 

carry-through tube upgrade and spar wall thickness as I remember.



From: "A Smith" <kitfox(at)ida.net>

Reply-To: kitfox-list(at)matronics.com

To: <kitfox-list(at)matronics.com>

Subject: Re: Kitfox 5 1400 Gross Weight

Date: Sat, 30 Sep 2006 09:25:24 -0600

There is a kit manufacture date you can check. I recieved mine in 96 and it 

is a 1400 lb. not to long after that they switched to the 1500 lb. When I 

talked to Skystar about the upgrade they told me it was a spar carry through 

tube and area that was the major change. It was thicker and there was no way 

to up the gross on it. I did not chase any details after that. The only 

thing for sure is the kit manufacture date for the 1400 to 1500. Not much 

help. Good luck

Albert

5TD-NSI-T



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jimlc(at)att.net
Guest

Posted: Sat Sep 30, 2006 10:26 pm Post subject: Kitfox 5 1400 Gross Weight

At the suggestion of Skystar to upgrade my plant to 1450, I purchased the heavier tubes, the stronger bolts, and added a plywood gusset to the triangle tubing of the lower fuselage where it accepts the load from the wings.  At the time they thought that would do it.



 Jim Crowder 



 At 09:25 AM 9/30/2006, you wrote:

 [quote]There is a kit manufacture date you can check. I recieved mine in 96 and it is a 1400 lb. not to long after that they switched to the 1500 lb. When I talked to Skystar about the upgrade they told me it was a spar carry through tube and area that was the major change. It was thicker and there was no way to up the gross on it. I did not chase any details after that. The only thing for sure is the kit manufacture date for the 1400 to 1500. Not much help. Good luck

 Albert

 5TD-NSI-T[b]

janderson412(at)hotmail.c
Guest

Posted: Sat Sep 30, 2006 10:51 pm Post subject: Kitfox 5 1400 Gross Weight

Hmm, my data says 1550lbs?? Everyone seems to be quoting 1500, am I correct 

at the former?



From: Jim Crowder <jimlc(at)att.net>

Reply-To: kitfox-list(at)matronics.com

To: kitfox-list(at)matronics.com

Subject: Re: Kitfox 5 1400 Gross Weight

Date: Sun, 01 Oct 2006 00:25:37 -0600



At the suggestion of Skystar to upgrade my plant to 1450, I purchased the 

heavier tubes, the stronger bolts, and added a plywood gusset to the 

triangle tubing of the lower fuselage where it accepts the load from the 

wings.  At the time they thought that would do it.



Jim Crowder



At 09:25 AM 9/30/2006, you wrote:



There is a kit manufacture date you can check. I recieved mine in 96 and it 

is a 1400 lb. not to long after that they switched to the 1500 lb. When I 

talked to Skystar about the upgrade they told me it was a spar carry through 

tube and area that was the major change. It was thicker and there was no way 

to up the gross on it. I did not chase any details after that. The only 

thing for sure is the kit manufacture date for the 1400 to 1500. Not much 

help. Good luck

Albert

5TD-NSI-T



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Read the latest Hollywood gossip  (at)  http://xtramsn.co.nz/entertainment

jimlc(at)att.net
Guest

Posted: Sat Sep 30, 2006 11:11 pm Post subject: Kitfox 5 1400 Gross Weight

Oops.  I should have said "to upgrade my plane to 1550lbs.



 Jim Crowder



 At 12:25 AM 10/1/2006, you wrote:



 [quote]At the suggestion of Skystar to upgrade my plant to 1450, I purchased the heavier tubes, the stronger bolts, and added a plywood gusset to the triangle tubing of the lower fuselage where it accepts the load from the wings.  At the time they thought that would do it.



 Jim Crowder 



 At 09:25 AM 9/30/2006, you wrote:

  	  Quote: 	
		  There is a kit manufacture date you can check. I recieved mine in 96 and it is a 1400 lb. not to long after that they switched to the 1500 lb. When I talked to Skystar about the upgrade they told me it was a spar carry through tube and area that was the major change. It was thicker and there was no way to up the gross on it. I did not chase any details after that. The only thing for sure is the kit manufacture date for the 1400 to 1500. Not much help. Good luck

 Albert

 5TD-NSI-T 	
[b]

kitfox(at)ida.net
Guest

Posted: Sun Oct 01, 2006 8:52 am Post subject: Kitfox 5 1400 Gross Weight

That would be about the right date. Mine was early in 96 Just seconds before 

the upgrade. My typical luck.

Albert

JJProbasco(at)cs.com
Guest

Posted: Mon Oct 02, 2006 6:27 pm Post subject: Kitfox 5 1400 Gross Weight

Mine is a 1995 S5 kit.  It came with .058 wall spars.  When I asked SkyStar about the upgrade to 1550#, all they recommended was .065 wall spars and a NASA grade bolt for the lift strut to fuse attachment.  No mention of heavier carry through tubes or fuse reinforcement. Sky star proceeded to accept my return of .058 spars and replaced them with the .065 ones for a very nominal charge.  It seems the .058 ones were getting hard to procure for the two place Kitfox Lite. 

 

 Jeff   [quote][b]

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