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John Hauck
Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
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 Posted: Fri Oct 05, 2007 4:32 pm Post subject: Jim Swan's AOL Slide Show |
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Hi Gang:
Sorry about firing a blank a minute ago.
Every time I would hit reply to Jim's msg, my computer would lock up.
Finally, it burped, and fired off a zero reply to Jim's email.
Anyhow, Jim mentioned loose drag strut fitting bolts and universal joints.
I include these in my preflight and post flight inspections. I have found,
through the years, there are a lot of Kolbs out there flying with the
trailing attach points pretty sloppy. They fly better snugged up. I push
up and down on the inboard rear corner of the wing pretty hard. If it has
slop you will see it move. I tighten up the drag strut bolt through two
small slits in the inboard rib fabric. I have also changed out a bolt this
way. A little tedious, but can be done.
Take care,
john h
mkIII
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John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama |
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icrashrc
Joined: 16 Mar 2006
Posts: 247
Location: Mishawaka, In
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| Posted: Sat Oct 06, 2007 7:03 am Post subject: Re: Jim Swan's AOL Slide Show |
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John,
Any thoughts on why the drag strut bolt would come loose? Do you think a second bolt would help? That way the single bolt can't act as a pivot point. Thanks,
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Scott
www.ill-EagleAviation.com
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John Hauck
Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
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| Posted: Sat Oct 06, 2007 7:25 am Post subject: Jim Swan's AOL Slide Show |
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> Any thoughts on why the drag strut bolt would come loose? Do you think a
second bolt would help? That way the single bolt can't act as a pivot point.
Thanks,
Morning Scott:
A lot of things could affect the drag strut bolt.
-Primarily, from normal flying and ground handling, fair wear and tear. On
the ground, taxiing probably does more harm than flying. The wing is
working up and down, and back and forth on the 1/4" bolt.
-May not have been torqued down enough initially. ???
I don't know about adding another bolt. You'll have to ask the engineers
that question.
One bolt works great. If it loosens a little, it can be tightened through
two small slits in the inboard fabric, one fore and one aft of the drag
strut fitting. When done, use some 2" plastic electrical tape to seal up
the slits. Those slits also provide for an access to the inside of the wing
for inspection. When I rebuilt my left wing, I added two inspection plates
back there to gain access to the bolt and fitting.
john h
mkIII
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John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama |
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icrashrc
Joined: 16 Mar 2006
Posts: 247
Location: Mishawaka, In
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| Posted: Sun Oct 07, 2007 5:18 am Post subject: Re: Jim Swan's AOL Slide Show |
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John,
Thanks for the info. By 'ask the engineers' i assume you mean Homer. I'll ask him next time i talk to him. Should be in about 2 months when Marcus gets back from Antarctica.
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_________________
Scott
www.ill-EagleAviation.com
do not archive
Last edited by icrashrc on Mon Oct 08, 2007 6:26 am; edited 1 time in total |
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John Hauck
Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
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icrashrc
Joined: 16 Mar 2006
Posts: 247
Location: Mishawaka, In
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| Posted: Mon Oct 08, 2007 6:29 am Post subject: Re: Jim Swan's AOL Slide Show |
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I was surprised to read of the bolt working it's way loose as i hadn't seen anything about that in 4 years of reading this list. I'll plan to leave it as designed.
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_________________
Scott
www.ill-EagleAviation.com
do not archive |
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