Mailing List lml@lancaironline.net Message #70035
From: <dudewanarace@yahoo.com>
Sender: <marv@lancaironline.net>
Subject: RE: Observations on Limited Life Items
Date: Fri, 23 May 2014 07:28:21 -0400
To: <lml@lancaironline.net>
Chris,
Correct.  When Scotty owned it, he mentioned the story.  I guess he literally had to jump out and Flintstone it to a stop.

Not long after I bought the airplane, during one of my dual training flights, I had a brake lining come off.  My only guess is that it was squeezed too tight when rivited to the base.  So the lining drops out and I loose right brake, pumped like my life depended on it and that just pushed the piston out of the caliper because there was no pad to fill the void.  Ended up doing an ever so gentle left turn off the runway right between 2 taxi lights, into the grass.

The Matco brakes are small, and cheap to repair, but man.. It is a fair amount of work to fix a pinched tube that is only inevitable. (I have the standard gear) Someday I'll 'brake' down (a little pun there) and buy the Beringer kit and be done with it.

Tom McNerney
 
~~~~~~~~~~~~~~~~~~~~

Wasn't it Unleashed (before you, Tom) that almost ran into the fuel island several years ago when a brake line failed? 

I just weighed an old brake disc.
Based on that and a Cp of 500 J/(kg-K) and mid-weight, 80 deg day
Max braking from speed x will raise the disc temperature to y degrees
25 kts  220 degF
35 kts  350 degF
45 kts  530 degF
55 kts  750 degF

Keep those brake lines protected.

Chris Zavatson
N91CZ
360std

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