Mailing List lml@lancaironline.net Message #28343
From: John Barrett <2thman@cablespeed.com>
Sender: Marvin Kaye <marv@lancaironline.net>
Subject: RE: [LML] Re: FW: [LML] Loose control surface hinges and vibration
Date: Thu, 17 Feb 2005 12:56:51 -0500
To: <lml@lancaironline.net>
Grayhawk,
 
Thanks for the response -  my answers in the body of your text:
 
1.  I started building my Lancair alone, in my garage, before anybody invented anything - including Car-binge and the internet as we know it today. 
 
Me too!  That's why I developed and now sell Carbinge graphite hinges.  BTW, Carbinge is a non-hyphenated word as is carbon.
 
2.  I like shiny metal things - I polished my hinges with a home brew compound before I knew about commercial rouges.  You can't polish Car-bon. 
 
I like shiny things too.  Carbinge has a very nice shiny surface that you don't need to polish.  Also it takes paint (shiny also) better than aluminum.  I can't comment on your affinity for metal, except to say that I chose a Lancair over metal airplanes because I prefer to save weight in my craft and I want to minimize the use of materials that corrode, weaken under stress and wear out before the airplane does.
 
3.  The electrical interaction betwixt SS, steel and aluminum is benign here in the salt-air free midwest. Car-bon and steel/SS?  You can't glue both halves of the hinge on - Something gets screwed. 
 
The steel pin in Carbinge graphite hinges does not contact graphite.  There is a nylon bushing so that never the twain shall meet.  I suspect you wouldn't glue either half of an aluminum hinge on, but actually with a bit of creativity in designing removable pins, both halves of Carbinge CAN be glued.  They can also be screwed on additionally, or instead  -  builder's choice.
 
This is a shameless defensive response.  
 
No criticism was intended in my comments, so I'm sorry you feel defensive.  I merely want to provide for LML subscribers information about an alternative that may be better for them.  I applaud your creativity in fixing the ongoing difficulties you have with your hinges.  9 years of service is a long time for a Lancair product and I know you have lots of miles under your belt.  I don't think there's anything to criticize about the amount of attention you've had to give to your hinges or the way you've solved the problems.  However, there are other solutions now and we are all served by having knowledge of and an understanding of them.
 

Regards,
John Barrett
Barrett/Garrett Enterprises, Inc.
PO Box 428
Pt. Hadlock, WA 98339
www.carbinge.com

 
 
  
 
 
 
 
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