Today's Message Index:
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1. 06:59 PM - Re: AGING AIRCRAFT (Bill Bow)
2. 07:13 PM - Re: AGING AIRCRAFT (Chris Schuermann)
Message 1
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--> Commander-List message posted by: "Bill Bow" <bowing74@earthlink.net>
Well there is always hope, since Ted Smith also worked for Donald Douglas,
that it could turn out to be like the DC-8. It turned out to be the only
aircraft in the Aging Fleet Program that was found to have "No discernable
life span".
There is always hope.
bilbo
-----Original Message-----
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of Chris
Schuermann
Sent: Monday, March 13, 2006 4:48 PM
Subject: Re: Commander-List: AGING AIRCRAFT
--> Commander-List message posted by: Chris Schuermann <cschuerm@cox.net>
W J R HAMILTON wrote:
> the 680Es bought by the old
> Australian Department of Civil Aviation were all corrosion proofed
> during manufacture
That's an interesting bit of trivia that I was unaware of. Thanks!
> We are also seeing VERY serious corrosion in some strutted Cessna
I've seen some pretty serious corrosion here in the midwest lately on
Cessnas as well. Cessna did virtually nothing for corrosion-proofing
except on the few birds set up for float ops. Amazing how much
corrosion I've seen inside the wings of Cessnas that have been hangared
in Oklahoma their entire lives. Just condensation will do it.
> the bigger Pipers seem to throw up fewer
> unexpected horror stories.
That's been my observation as well Bill. Piper did a pretty darn good
job of slathering zinc chromate all over in many of their models. I
havn't found any corossion at all in my '65 Aztruk even after a total
tear-down restoration. Pitty that everybody didn't do the same.
chris
Message 2
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Subject: | Re: AGING AIRCRAFT |
--> Commander-List message posted by: Chris Schuermann <cschuerm@cox.net>
Bill Bow wrote:
> Well there is always hope, since Ted Smith also worked for Donald Douglas,
> that it could turn out to be like the DC-8. It turned out to be the only
> aircraft in the Aging Fleet Program that was found to have "No discernable
> life span".
I seem to recall being told that there was a fatigue life determination
done on the Commander. I don't recall details of the results, but I do
remember that no "issues" were found with the wing design.
My personal speculation is that the tail surfaces would be one of the
first places to show significant fatigue damage. Commanders have a
pretty obvious propensity to develope cracks in the tail feathers. I
imagine it is mostly due to prop beat since it seems to be far more
prevelant on the big-engined models such as the 680F/FL.
Maybe Jim or Barry knows more.
Chris
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