Somewhere in the FARs or AC 43.13, I don't remember where, it says that te
minimum size for control cables for certified planes is 1/8".  Most people
use 3/32 for KRs and it is more than adequate.

Brian Kraut
Engineering Alternatives, Inc.
www.engalt.com

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Serge VIDAL
Sent: Tuesday, January 11, 2005 1:01 PM
To: KRnet
Subject: KR> Control cables


I am going to replace some control cables (and possibly all of them) in my
KR2. The reason is I have damaged one of them while removing the WAFs.
Now, the current cables are stainless steel, 2mm diameter (that is 0.07
inch), and I suspect the local airworthiness authorities are not going to
like that cable size.
So, I checked the literature about control cables. Could not find anything
in the construction manual, so I checked Tony Bingelis. He says standard
size for all control cables, no matter for which aircraft they are, are
3.2mm (1/8"). Now, that is a surprise. I thought the cable size would be
adjusted to the aircraft specifics somehow.

So, should I go for 1/8", then?

Serge Vidal
KR2 ZS-WEC
Paris, France
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