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Date: Wed, 07 Dec 2005 00:14:57 -0500
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From: bob mackey <n103md@yahoo.com>
Subject: LNC2 - Matco Brake Caliper
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I received a prompt reply today from George Happ
at Matco. In the 17 years since the Lancair 235 kits 
shipped with their cast caliper (or "puck housing"), 
Matco has improved the design several times. 

In his words: 
----------- excerpt from Matco -------------
The current version of the PH-1 housing 
(the PH-1A) is made from an extrusion.  
It is also a gold anodize color.  It has 
a slightly different profile but will 
fit the same components as the earlier model.  

The cast housings are susceptible to cracking 
if over tightened.  The caliper in your photo 
is at least two generations old.  The current 
caliper housing is 0.75 inches thick and does 
not have raised letters.

The brake assembly can be purchased without 
the brake plate as the WHLB5.  I expect you 
will find the following improvements from your 
first generation assembly: 

  1) The spacers on the current version are made 
     from stainless steel.  

  2) The stationary brake plate is steel so the 
     caliper is stiffer. 

  3) The housing is an anodized extrusion 
     and not a casting. 

  4) The lining formulation has changed several 
     times and is now semi-metallic that has
     higher friction coefficient and holds it to 
     a higher temperature. 
---------------- end excerpt --------------

The new parts can be seen at: 
http://www.matcomfg.com/catalog/index.php?file=catalog&action=catalog_productinfo&uid=2192&pi_id=66562
The current stock at Lancair Kit Components, as well 
as at Matco is the newer PH-1A puck housing and
associated
assembly. 
http://www.aerocraftparts.com/ItemForm.aspx?item=B5-4

BTW, if anyone has recently replaced their LNC2 brakes
with the version from Grove, and would like to sell
their lightly used caliper assemblies, please let me
know....
I also have a neighbor who could use a pair of Matco
disks. 

-bob mackey
 bob AT pure-flight DOT com


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