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Re: Aircraft cable

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Wire rope is a mechanism and you can't think of it like a rigid body. The
value of E has such a  large range because it changes in a non-linear way
depending on load history. Pre-stretched cable is much more consistent if
you need a narrow range of E.

Good sources for information on-line.


USS American Tiger Brand Wire Rope Engineering Handbook
Some USACE and ASN references will also pop up.

I'm certain that there are other references in the list archives.

Otherwise, contact a wire rope manufacturer for their thoughts. This is a
very mature technology and there is probably a more direct answer than you
will find easily in a design manual.


Paul Ransom, P.Eng.

Paul Ransom Engineering


> Date: Mon, 12 Jan 2015 17:41:55 -0800
> From: "Thor Tandy" <vicpeng(--nospam--at)>
> Subject: Aircraft cable
> I've looked all through Google but can't find the actual numbers I'm
> for .
> I'm calculating stretch in a cable for a variety of loads at different
> locations along the cable - so I'm looking for modulus of elasticity and
> true cross section area.
> In particular for galvanized 7x19 aircraft cable.
> I can do an approximation from the estimated weight per ft but that's not
> good enough and I have found E varying from 160MPa to 200MPa .?
> Any help/direction appreciated.
> Thx
> Thor A. Tandy P.Eng, C.Eng, Struct.Eng, MIStructE, FEC
> Victoria, BC
> Canada
> Email:  <mailto:vicpeng(--nospam--at)> vicpeng(--nospam--at)

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