Mailing List flyrotary@lancaironline.net Message #42910
From: Ernest Christley <echristley@nc.rr.com>
Subject: Re: [FlyRotary] Self-repairing Aircraft
Date: Mon, 19 May 2008 15:38:40 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Schemmel, Grant wrote:
Self-repairing composite airframes anyone?


www.sciencedaily.com/releases/2008/05/080519105052.htm


  
No.
Self damage reporting.  SURE!!

I don't think it would make sense to carry around extra epoxy to heal possible future damage.  All epoxies I've ever heard about have relative short shelf lifes, and the weight could be better spent beefing up the part in the first place.  I also don't care for the mindset that we can make the part thinner, because we'll know when it gets damaged.  I'd rather keep the mindset that we build the part stout enough that any damage severe enough to compromise the part will be discernable on a normal visual inspection.

A layer of "bleeding glass" in the layup schedule would be great (if not expensive) during the annual, but I would hate to think that I was depending on some oozing epoxy to keep the wings on when I hit the turbulent air.
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