Another Grammar Q...

[Leonard C. Porrello]

However you hyphenate it, it is an ugly phrase. Is it industry standard?
I wonder if any aerospace writers out there might share how they talk
about systems that have no single point of failure.

Leonard C. Porrello
 

-----Original Message-----
From: techwr-l-bounces+leonard.porrello=soleratec.com at lists.techwr-l.com
[mailto:techwr-l-bounces+leonard.porrello=soleratec.com at lists.techwr-l.c
om] On Behalf Of jopakent at comcast.net
Sent: Wednesday, April 23, 2008 10:02 AM
To: TECHWR
Subject: Another Grammar Q...


I'm trying to come up with the correct hyphenation of the term "single
failure proof"  (SFP)

The term refers to a design capability for a heavy duty crane.

My translation of this regulatory term is: "If one important component
fails, (for instance the power fails or a gear breaks, or a lifting rope
snaps), the crane won't drop its load."

Unfortunately, the standards themselves and a Google search yield no
consistency whatsoever, within the same standard, I see multiple
variations. (S-F-P, S-FP, SFP, & SF-P)

What I'm stuck on is coming up with a grammatical case for one scheme
over the other. Here's the extent of my wit to date: 

"failure-proof " is a hyphenated adjective modifying crane. But the
crane is not failure-proof, it's only single-failure-proof.  That is, if
the power goes off and the brakes fail at precisely the same time then
the crane could drop the load.

I guess my grammar chops weakness is finally exposed with this question:

What is "single" in this case? Its modifying an adjective, right? I'm
guessing that Words into Type or Chicago Manual of Style might be
helpful, but I haven't brought my reference library into the office yet.
Gad I hate posting my ignorance like this, but I'm truly stumped.

Humbly,
--
J. Paul Kent
206-383-0539
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