Today's Message Index:
----------------------
1. 06:44 AM - Re: oil canning revisited (johngoodman)
2. 06:55 AM - Re: Gretz mount (johngoodman)
3. 09:43 PM - Re: Re: oil canning revisited (John Gonzalez)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: oil canning revisited |
Sorry for the segue, but I couldn't help noticing you mentioned the clecos falling
out. I ran into that problem on by tailcone and began to notice a pattern.
The ones I got from Avery hold fast in final drilled holes, but the ones I bought
at Aircraft Spruce tend to pop out every time I hit the rivet gun. It took
a while to find all the culprits but I've isolated them into "loose" and "tight."
The loose ones are good for pre-drilled holes while the tight ones I save
for final riveting.
I appreciate the dialogue on the oil canning since I'll be doing those skins on
my QB next week. Currently all wired up and doing the flap & aileron fairings.
John
--------
#40572 QB Wings, QB Fuse arrived
N711JG reserved
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=154170#154170
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Chris, I'm going the same route, except I was foolish enough to put it where Van's
probe went. The aileron push tube is a problem there but manageable. Fortunately,
I was warned, so I'll pass it on. The Dynon tube's metal - where you screw
it to the Gretz mount - is very soft and thin. Drilling is not too bad but
tapping the holes for screws must be done very carefully.
John
[quote=" I installed the new Dynon heated pitot / AOA probe, which is fabricated
from nickel and it looks like a real quality unit. I plan on at least one
Dynon box, which will give me visual and aural AOA / stall warning. The probe
also is temperature controlled for low current draw, and has fault annunciation
on a Dynon box, or a stand alone LED if not using a Dynon box. My experience
with the Dynon system I have in the RV8 couldn't be better. The system is
rock solid, and loaded with features.
Chris Hukill
shaving bottom wing skins to fit
/quote]
--------
#40572 QB Wings, QB Fuse arrived
N711JG reserved
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=154172#154172
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: oil canning revisited |
Thanks, I remember your post from a few weeks ago, but I didn't remember wh
ich supplier had the better clecoes. Now I will remember. BTW mine are a mi
x aswell.
Here is what has developed since Monday.
I put in my AOA tubing on the other wing and was able to finish tonight the
riveting of Step 11, all the ribs but not the Main spar.
Here is what I have learned by this second wing.
Wish my rivetting on the first wing was as good as on this one. No dents to
this point. NONE!
Also a big issue I have learned...It had been a while since I rivetted, my
excuss for the first wing. On the first wing I believe I was not equallying
out the rivet gun pressure enough with the bucking bar pressure, so ultima
tely, some of my rivet lines had a slight depression to them. I BELIEVE tha
t this will cause a tighter arc pattern to the skin than is supposed to be
and the skin in the middle of the bays wants to pillow out.
Today I really got my rivetting down and turned the volume down, the pressu
re the same, and after the first few gentle hit of the set, i pulled or pus
hed out the bucking bar out so the skin would not collapse in. My rivetting
looks really good...almost as good as the QB results or back rivetting.
So to this point without the rivets in on the main spar the skin is much ti
ghter, but a flex is still in the same bay, but absolutely better than the
first wing. Will see what happens when the main spar is rivetted, and when
the entire skin is finished.
Again, I did remove the material from the edge and the without any skin man
ipulation(clecoes are in on the main spar) the rivets don't go into their h
oles in the main spar because the skin is more forward than the holes in th
e spar. A slight wiggle with the ice pick allows the rivets to go in fine.
My rivet pattern was going outboard and inboard with each rivet that I went
forward. Meaning all horizontal rows were complete before moving forward t
oward the LE skin. This is the way the Jchannel was rivetted.
I did not complete one vertical row at a time.
I will finish the spar rivetting by starting in the middle of the bay, basi
cally the same location I started on the rear spar and move outward and inw
ard at the same time.
It is amazing that some builders had no issues at all with this. To me it s
eems like walking across a mine field.
Haven't decided what I will do with the first wing, either nothing, or do a
n access panel with slightly offset holes in the re inforcement plate so th
e skin dimple get pulled inward toward a center point and if this does not
work I will cut large holes in each bay to better access each shop head for
better removal of all rivets and redo the skin(Without dents) the second t
ime. Oh, guess I'll need to sort some clecoes of buy some more from Avery.
Merry Christmas, back to teeth work tomorrow.
John G
> Subject: RV10-List: Re: oil canning revisited> From: johngoodman@earthlin
k.net> Date: Tue, 25 Dec 2007 06:43:45 -0800> To: rv10-list@matronics.com>
>> > Sorry for the segue, but I couldn't help noticing you mentioned the cl
ecos falling out. I ran into that problem on by tailcone and began to notic
e a pattern. The ones I got from Avery hold fast in final drilled holes, bu
t the ones I bought at Aircraft Spruce tend to pop out every time I hit the
rivet gun. It took a while to find all the culprits but I've isolated them
into "loose" and "tight." The loose ones are good for pre-drilled holes wh
ile the tight ones I save for final riveting.> > I appreciate the dialogue
on the oil canning since I'll be doing those skins on my QB next week. Curr
ently all wired up and doing the flap & aileron fairings.> > John> > ------
--> #40572 QB Wings, QB Fuse arrived> N711JG reserved> > > > > Read this to
pic online here:> > http://forums.matronics.com/viewtopic.php?p=154170#15
======> > >
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|