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adj. hinges

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MKIIIX040

Joined: 31 Mar 2006
Posts: 123
Location: Millinocket, Maine

Posted: Wed Apr 12, 2006 3:19 pm Post subject: adj. hinges

Howdy all

 Someone out ther has pictures of his adjustable stabilizer hinges on a Mk3EX. Could it be the preacher? I don't remember his name or web site.



Mk3EX

Maine

Do not archive

_________________
MKIIIX040
912UL

rlaird

Joined: 10 Jan 2006
Posts: 373
Location: Houston

Posted: Wed Apr 12, 2006 7:28 pm Post subject: adj. hinges

At 06:18 PM 4/12/2006, you wrote:

 	  Quote: 	
		  



Howdy all

  Someone out ther has pictures of his adjustable stabilizer hinges on a 

 Mk3EX. Could it be the preacher? I don't remember his name or web site.


	




This what you mean?  (I took it off and painted it right after this photo 

was taken.)



43374c9a.jpg

_________________
~~~~~~~~~~~~~~~~~~~
Robert Laird
formerly: MkIIIc w/ 912ULS & Gyrobee
current: Autogyro Cavalon w/ 914ULS
Houston, TX area
http://www.Texas-Flyer.com

rlaird

Joined: 10 Jan 2006
Posts: 373
Location: Houston

Posted: Wed Apr 12, 2006 7:45 pm Post subject: Re: adj. hinges

Sorry, here's the photo....

adj-hinge.jpg

Description:

English u-joint

Filesize:

70.63 KB

Viewed:

415 Time(s)

_________________
~~~~~~~~~~~~~~~~~~~
Robert Laird
formerly: MkIIIc w/ 912ULS & Gyrobee
current: Autogyro Cavalon w/ 914ULS
Houston, TX area
http://www.Texas-Flyer.com

MKIIIX040

Joined: 31 Mar 2006
Posts: 123
Location: Millinocket, Maine

Posted: Thu Apr 13, 2006 5:48 am Post subject: adj. hinges

Thanks Robert that pic may come in handy as I also need to raise the 

trailing edge of my right wing. (seems a little too common)

I'm actually looking for adjustable horizontal stabilizer hinges.



Vic  MKIIIX 912

Maine

do not archive 



--

_________________
MKIIIX040
912UL

Richard Pike

Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee

Posted: Thu Apr 13, 2006 7:52 am Post subject: adj. hinges

Here is how we did it. You could add a couple extra holes to the 

brackets and see which worked best.



http://www.bcchapel.org/pages/0003/FSIIelevatorbracket.html

Richard Pike

MKIII N420P (420ldPoops)

Vic Peters wrote:

 	  Quote: 	
		   



 Thanks Robert that pic may come in handy as I also need to raise the 

 trailing edge of my right wing. (seems a little too common)

 I'm actually looking for adjustable horizontal stabilizer hinges.



 Vic  MKIIIX 912

 Maine

 do not archive

_________________
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0

Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing.

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Thu Apr 13, 2006 8:15 am Post subject: adj. hinges

Richard P/Gang:



Got a lot riding on that Tractor Supply steel strap.  Could be as 

strong as 4130.  Maybe not.



I would go with 4130 on an airplane, especially in a critical area 

like the horizontal stabilizers.



My thoughts for what they are worth.  What you paid for them.



"Nothing fancy, got a length of .080 x 3/4" steel strap from Tractor 

Supply, cut out four brackets, and drilled three 3/16" holes in each 

bracket."



john h

MKIII

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

Eugene Zimmerman

Joined: 10 Jan 2006
Posts: 392

Posted: Thu Apr 13, 2006 9:00 am Post subject: adj. hinges

John,

Did you see the bracket?

Those original stainless brackets on the horizontal stabilizer will  

fail long before preacher Pike's tractor supply straps ever do.



On Apr 13, 2006, at 12:15 PM, John Hauck wrote:



 	  Quote: 	
		   



 Richard P/Gang:



 Got a lot riding on that Tractor Supply steel strap.  Could be as

 strong as 4130.  Maybe not.



 I would go with 4130 on an airplane, especially in a critical area

 like the horizontal stabilizers.



 My thoughts for what they are worth.  What you paid for them.



 "Nothing fancy, got a length of .080 x 3/4" steel strap from Tractor

 Supply, cut out four brackets, and drilled three 3/16" holes in each

 bracket."



 john h

 MKIII

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Thu Apr 13, 2006 9:43 am Post subject: adj. hinges

,

| Did you see the bracket?

| Those original stainless brackets on the horizontal stabilizer will

| fail long before preacher Pike's tractor supply straps ever do.

|



Gene/Gang:



Yes I did see them.



No, I do not have them installed on my MKIII.



Don't think anyone has heard me rave about the durability of the SS 

brackets that Old Kolb began using many years ago.



Yes, there have been some failures of the SS brackets, one relatively 

recently.



I still stand by my own standards of not using unknown steel on an 

airplane, especially on a critical area.  That piece of TSC steel 

strap my last forever, or maybe a day.  I don't know and am not 

willing to bet my ass on it.



Take care,



john h

MKIII

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Thu Apr 13, 2006 9:52 am Post subject: adj. hinges

|| Those original stainless brackets on the horizontal stabilizer 

will

|| fail long before preacher Pike's tractor supply straps ever do.



I might add, SS is far less fatigue resistant that carbon steel.



john h

MKIII

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

Eugene Zimmerman

Joined: 10 Jan 2006
Posts: 392

Posted: Thu Apr 13, 2006 10:19 am Post subject: adj. hinges

On Apr 13, 2006, at 1:53 PM, John Hauck wrote:



 	  Quote: 	
		   I might add, SS is far less fatigue resistant that carbon steel.



 john h

 MKIII


	


Yup, I'd like to see kolb come up with a better solution for this  

vulnerable part.



It may be adequate for flight loads but I know from experience that  

that part gets a real workout at times when ground handling the plane.

It is so easy to grab on to the LE of one horizontal stab at that point.



Gene

MKIIIX040

Joined: 31 Mar 2006
Posts: 123
Location: Millinocket, Maine

Posted: Thu Apr 13, 2006 11:31 am Post subject: adj. hinges

Thanks Richard ,gives me ideas at the very least.



Maybe I should  run a length of cable around the boom tube an through both 

stabilizers just incase. lol



Vic

MKIIIEX 040

912 spacerless Damn it $$$$ never ends

do not archive 



--

_________________
MKIIIX040
912UL

Richard Pike

Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee

Posted: Thu Apr 13, 2006 12:58 pm Post subject: adj. hinges

No way it is as strong as 4130. That's why it is eighty thousandths. Per 

bracket.

Two per side. To hold two 1/16" thick stainless tangs that are stressed 

in twist.

The stress point in that whole assembly is where the tangs are riveted 

to the stab.

Which is made out of .049 aluminum tubing. Which is stressed in twist 

against the rivet.



Yet you are correct, 4130 would have been more "airplaney,"

but with the original Piper J-3's, J-4's, and J-5's being built out of 

1020 mild steel,

and still doing fine today, I doubt I'll lose any sleep worrying about a 

couple 3"

long mild steel long brackets that are .080 thick, with the load running 

favorably to the bracket.



Does that mean that we can use mild steel just anywhere and get away 

with it?

Certainly not. And now that this has come up, I will go back and modify 

the web page,

deleting the reference to Tractor Supply so as not to encourage bad habits.

No way would I want to encourage anybody to do anything unsafe.

But I don't plan to change out the present brackets...



Richard Pike

MKIII N420P (420ldPoops)

John Hauck wrote:

 	  Quote: 	
		   



 Richard P/Gang:



 Got a lot riding on that Tractor Supply steel strap.  Could be as 

 strong as 4130.  Maybe not.



 I would go with 4130 on an airplane, especially in a critical area 

 like the horizontal stabilizers.



 My thoughts for what they are worth.  What you paid for them.



 "Nothing fancy, got a length of .080 x 3/4" steel strap from Tractor 

 Supply, cut out four brackets, and drilled three 3/16" holes in each 

 bracket."



 john h

 MKIII

_________________
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0

Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing.

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