Today's Message Index:
----------------------
1. 09:19 AM - Hard Landing (kerrjohna@comcast.net)
2. 12:22 PM - Re: Hard Landing (Guy Buchanan)
3. 12:27 PM - Re: Hard Landing (Guy Buchanan)
4. 01:33 PM - Slsa (aerobatics@aol.com)
5. 02:23 PM - Re: Hard Landing (Patrick Reilly)
6. 02:52 PM - Re: Hard Landing (Lowell Fitt)
Message 1
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Experienced a hard landing which damaged area of frame centering around the
lower longeron at the left pilot knee position.=C2- Half a dozen related
tubes damaged. One gear leg is damaged, the one where the bungie failed.
=C2- The other, the bungie held but the mountings and support structure f
ailed, go figure.
=C2-
Seeking advise on repair recommendations/methods, etc.
=C2-
Still dealing with FAA/NTSB. ARGH!
=C2-
John Kerr
N195KF, 933 hours
Message 2
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| Subject: | Re: Hard Landing |
Dang. With localized damage like this the only cure is to cut it out and
replace it. (When one of our K-IV's flipped we simply straightened the
bowed lower longerons and re-covered. Worked fine.) It might be possible
to buy a "module" from John at Kitfox LLC, which might make the install
quicker, but I'm not sure how reliable his tooling is.
Guy Buchanan
Ramona, CA
Kitfox IV-1200 / 912-S / Warp 3cs / 500 hrs. and grounded
Now a glider pilot, too.
On 4/2/2015 9:19 AM, kerrjohna@comcast.net wrote:
> Experienced a hard landing which damaged area of frame centering
> around the lower longeron at the left pilot knee position. Half a
> dozen related tubes damaged. One gear leg is damaged, the one where
> the bungie failed. The other, the bungie held but the mountings and
> support structure failed, go figure.
> Seeking advise on repair recommendations/methods, etc.
> Still dealing with FAA/NTSB. ARGH!
> John Kerr
> N195KF, 933 hours
> *
>
>
> *
Message 3
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| Subject: | Re: Hard Landing |
By the way, John, if you put your approximate location in your signature
nearby folks that can help you will be more likely to respond. And yes,
I understand the security issues.
Guy Buchanan - List moderator
Ramona, CA
Kitfox IV-1200 / 912-S / Warp 3cs / 500 hrs. and grounded
Now a glider pilot, too.
On 4/2/2015 9:19 AM, kerrjohna@comcast.net wrote:
> Experienced a hard landing which damaged area of frame centering
> around the lower longeron at the left pilot knee position. Half a
> dozen related tubes damaged. One gear leg is damaged, the one where
> the bungie failed. The other, the bungie held but the mountings and
> support structure failed, go figure.
> Seeking advise on repair recommendations/methods, etc.
> Still dealing with FAA/NTSB. ARGH!
> John Kerr
> N195KF, 933 hours
> *
>
>
> *
Message 4
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Message 5
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| Subject: | Re: Hard Landing |
John, I had to replace bent tubing in the cluster weld area at that
location twice. As Guy said, easiest way is to cut fabric away as far back
as you have to go to avoid burning it, cut out the bent tubing, find the
proper size tubing to sleeve inside and/or outside, and grab the torch. It
isn't rocket science. Just a pain in the ass welding upside down on your
back especially..... Oh ....then it's fabric covering and paint time.
Pat Reilly
Mod 3 582 Rebuilt
Rockford, IL
On Thu, Apr 2, 2015 at 2:21 PM, Guy Buchanan <gebuchanan@cox.net> wrote:
> Dang. With localized damage like this the only cure is to cut it out and
> replace it. (When one of our K-IV's flipped we simply straightened the
> bowed lower longerons and re-covered. Worked fine.) It might be possible to
> buy a "module" from John at Kitfox LLC, which might make the install
> quicker, but I'm not sure how reliable his tooling is.
>
> Guy Buchanan
> Ramona, CA
> Kitfox IV-1200 / 912-S / Warp 3cs / 500 hrs. and grounded
> Now a glider pilot, too.
>
>
> On 4/2/2015 9:19 AM, kerrjohna@comcast.net wrote:
>
> Experienced a hard landing which damaged area of frame centering around
> the lower longeron at the left pilot knee position. Half a dozen related
> tubes damaged. One gear leg is damaged, the one where the bungie failed.
> The other, the bungie held but the mountings and support structure failed,
> go figure.
>
> Seeking advise on repair recommendations/methods, etc.
>
> Still dealing with FAA/NTSB. ARGH!
>
> John Kerr
> N195KF, 933 hours
>
>
> *
>
>
> *
>
>
--
Pat Reilly
Mod 3 582 Rebuild
Rockford,IL
Message 6
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| Subject: | Re: Hard Landing |
John,
Sorry to hear about your experience. A local guy had a similar
experience and it happened again after his home brew fix. Apparently he
hammered some of the tubing back to straight and there were hammer marks
that I suspect reduced the strength of some of the tubing. On the
second one, I helped a bit with the repair welding in some new tubing
and making some gussets to strengthen the structure around the door.
Thinking what I might do: First, straighten everything the best I can
to get everything in alignment. Then any tube that has a wrinkle or
slight bend, I would cut out and replace, starting with the straight
pieces and finishing with all the fish mouth butt welded tubes.
depending on what happens when I make the first cut - things jump out
of alignment showing hidden stress, I might weld up a jig to hold
everything straight as I progressed through the repair.
I doubt Kitfox will be any help at all. I recall that one of our
members tried to purchase a IV kit a few years ago and was essentially
told that the factory had the jigs and tooling buried out back, as I
recall him telling the story.
Good luck and keep us posted,
Lowell
From: kerrjohna@comcast.net
Sent: Thursday, April 02, 2015 9:19 AM
Subject: Kitfox-List: Hard Landing
Experienced a hard landing which damaged area of frame centering around
the lower longeron at the left pilot knee position. Half a dozen
related tubes damaged. One gear leg is damaged, the one where the bungie
failed. The other, the bungie held but the mountings and support
structure failed, go figure.
Seeking advise on repair recommendations/methods, etc.
Still dealing with FAA/NTSB. ARGH!
John Kerr
N195KF, 933 hours
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