Today's Message Index:
----------------------
1. 02:23 AM - Re: More gusset questions (Bob Collins)
2. 07:17 AM - Re: Re: More gusset questions (LarryRobertHelming)
3. 07:17 AM - Re: Re: More gusset questions (Dan Checkoway)
4. 12:55 PM - Nosewheel collapse another view (Merems)
5. 01:28 PM - Re: Nosewheel collapse another view (B Tomm)
6. 08:27 PM - Re: Nosewheel collapse another view (Richard McCraw)
Message 1
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| Subject: | Re: More gusset questions |
--> RV7-List message posted by: "Bob Collins" <bcollinsrv7a@comcast.net>
//I'm working on this right now and all my bucktails are easily
accessible w/ a bucking bar. Something must be off. How about a
picture, Bob?
- Jamie, RV-7A Fuselage
I think I've done everything correctly. The picture is here. The .125 of
the 705G DOES interfere with getting good access at those two
skin-to-longeron rivets. It would think the opportunity to slice a bucktail
or beat up the angle pretty good is quite prevalent here.
http://home.comcast.net/~bcollinsrv7a/eaa/rv.html
Message 2
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| Subject: | Re: More gusset questions |
--> RV7-List message posted by: "LarryRobertHelming" <lhelming@sigecom.net>
I think all who have been there and done it remember now what you are
talking about. You can only do the best you can do. I think I took a small
piece of spring steel and ground it down on half its side and slipped it in
there to do the bucking chore. It turned out about half right and I moved
on. Happy to report, my plane has flown for 57 hours without that incision
tearing loose.
Indiana Larry, RV7 Tip Up It Flies
Teamwork: " A lot of people doing exactly what I say."
(Marketing exec., Citrix Corp.)
----- Original Message -----
From: "Bob Collins" <bcollinsrv7a@comcast.net>
Subject: RV7-List: Re: More gusset questions
> --> RV7-List message posted by: "Bob Collins" <bcollinsrv7a@comcast.net>
>
> //I'm working on this right now and all my bucktails are easily
> accessible w/ a bucking bar. Something must be off. How about a
> picture, Bob?
>
> - Jamie, RV-7A Fuselage
>
> I think I've done everything correctly. The picture is here. The .125 of
> the 705G DOES interfere with getting good access at those two
> skin-to-longeron rivets. It would think the opportunity to slice a
> bucktail
> or beat up the angle pretty good is quite prevalent here.
>
> http://home.comcast.net/~bcollinsrv7a/eaa/rv.html
>
>
>
Message 3
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| Subject: | Re: More gusset questions |
--> RV7-List message posted by: "Dan Checkoway" <dan@rvproject.com>
> I think I've done everything correctly. The picture is here. The .125 of
> the 705G DOES interfere with getting good access at those two
> skin-to-longeron rivets. It would think the opportunity to slice a
> bucktail
> or beat up the angle pretty good is quite prevalent here.
>
> http://home.comcast.net/~bcollinsrv7a/eaa/rv.html
Bob,
We all go through this. Two things you need to do...
1) Gouge out a big of the gusset where the rivets will go.
2) Use pop rivets (skin to longeron) in that area.
The reason for gouging out the gusset is to provide enough depth for the pop
rivet to insert before it gets pulled.
Trust me, this is the fastest method. Pop a little filler in the pop rivet,
nobody will ever be the wiser.
Moving right along...
)_( Dan
RV-7 N714D
http://www.rvproject.com
Message 4
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| Subject: | Nosewheel collapse another view |
--> RV7-List message posted by: "Merems" <merems@cox.net>
Gents,
I too am building an RV-7A and have been following the discussions about the recent
nosewheel collapse. I am concerned about this situation as many of you are.
I have talked with Ken Krueger (Van's engineering), who I have a tremendous respect
for, about some of these recent accidents. I am certain Van's Aircraft takes
this situation very seriously. However if you step back and ask yourself
are there a few RV'As out there that have had the highest number of landings
to date, where would you find them? What kind of landing have they seen? Grass
or paved runways? My best guess is these are the RV-7A and RV-9A prototypes
at Van's Aircraft. Who flies these? Van's staff. Where have they landed?
Grass or pavement? Both. Have they taxied on grass? Yes. Have they botched
a few landing? I would think so. Now I would bet these two aircraft have 10
times or more the numbers of landing then any another RV's out there and their
nose gears haven't collapsed.
I am not saying there isn't a issue, I am just giving you another view to understand
possibly why Van's Aircraft appears to have "no comment" when it comes to
this issue.
In all the postings about this issue, no one has mentioned the possibility of improper
heat treating of the gear leg. If I recall this was an issue sometime
ago with some main gear legs on RV's. This might be the root cause. This can
be easily determined by sending the nose gear leg off to any qualified machine
shop who can perform a hardness test on the leg. This will help determine
if the gear was heat treated properly.
Food for thought.
Paul
Message 5
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| Subject: | Nosewheel collapse another view |
--> RV7-List message posted by: "B Tomm" <fvalarm@rapidnet.net>
I've wondered whether powder coating affects the heat treating since it
involves considerable heat. Anyone KNOW the answer.
Bevan
-----Original Message-----
From: owner-rv7-list-server@matronics.com
[mailto:owner-rv7-list-server@matronics.com] On Behalf Of Merems
Subject: RV7-List: Nosewheel collapse another view
--> RV7-List message posted by: "Merems" <merems@cox.net>
Gents,
I too am building an RV-7A and have been following the discussions about the
recent nosewheel collapse. I am concerned about this situation as many of
you are.
I have talked with Ken Krueger (Van's engineering), who I have a tremendous
respect for, about some of these recent accidents. I am certain Van's
Aircraft takes this situation very seriously. However if you step back and
ask yourself are there a few RV'As out there that have had the highest
number of landings to date, where would you find them? What kind of landing
have they seen? Grass or paved runways? My best guess is these are the
RV-7A and RV-9A prototypes at Van's Aircraft. Who flies these? Van's
staff. Where have they landed? Grass or pavement? Both. Have they taxied
on grass? Yes. Have they botched a few landing? I would think so. Now I
would bet these two aircraft have 10 times or more the numbers of landing
then any another RV's out there and their nose gears haven't collapsed.
I am not saying there isn't a issue, I am just giving you another view to
understand possibly why Van's Aircraft appears to have "no comment" when it
comes to this issue.
In all the postings about this issue, no one has mentioned the possibility
of improper heat treating of the gear leg. If I recall this was an issue
sometime ago with some main gear legs on RV's. This might be the root
cause. This can be easily determined by sending the nose gear leg off to
any qualified machine shop who can perform a hardness test on the leg. This
will help determine if the gear was heat treated properly.
Food for thought.
Paul
Message 6
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| Subject: | Nosewheel collapse another view |
--> RV7-List message posted by: "Richard McCraw" <rmccraw@s4t.net>
Maybe I've been asleep, but I haven't seen a discussion of nosewheel
collapses on either the RV or the RV-7 lists. Can someone please point me
at this discussion?
Rick
RV-7(A?)
-----Original Message-----
From: owner-rv7-list-server@matronics.com
[mailto:owner-rv7-list-server@matronics.com] On Behalf Of B Tomm
Subject: RE: RV7-List: Nosewheel collapse another view
--> RV7-List message posted by: "B Tomm" <fvalarm@rapidnet.net>
I've wondered whether powder coating affects the heat treating since it
involves considerable heat. Anyone KNOW the answer.
Bevan
-----Original Message-----
From: owner-rv7-list-server@matronics.com
[mailto:owner-rv7-list-server@matronics.com] On Behalf Of Merems
Subject: RV7-List: Nosewheel collapse another view
--> RV7-List message posted by: "Merems" <merems@cox.net>
Gents,
I too am building an RV-7A and have been following the discussions about the
recent nosewheel collapse. I am concerned about this situation as many of
you are.
I have talked with Ken Krueger (Van's engineering), who I have a tremendous
respect for, about some of these recent accidents. I am certain Van's
Aircraft takes this situation very seriously. However if you step back and
ask yourself are there a few RV'As out there that have had the highest
number of landings to date, where would you find them? What kind of landing
have they seen? Grass or paved runways? My best guess is these are the
RV-7A and RV-9A prototypes at Van's Aircraft. Who flies these? Van's
staff. Where have they landed? Grass or pavement? Both. Have they taxied
on grass? Yes. Have they botched a few landing? I would think so. Now I
would bet these two aircraft have 10 times or more the numbers of landing
then any another RV's out there and their nose gears haven't collapsed.
I am not saying there isn't a issue, I am just giving you another view to
understand possibly why Van's Aircraft appears to have "no comment" when it
comes to this issue.
In all the postings about this issue, no one has mentioned the possibility
of improper heat treating of the gear leg. If I recall this was an issue
sometime ago with some main gear legs on RV's. This might be the root
cause. This can be easily determined by sending the nose gear leg off to
any qualified machine shop who can perform a hardness test on the leg. This
will help determine if the gear was heat treated properly.
Food for thought.
Paul
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