Today's Message Index:
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1. 01:39 PM - Re: counter wieght rivets (SUE MICHAELS)
2. 03:25 PM - Re: counter wieght rivets ()
3. 04:33 PM - need engineer type to run a calculation (akflyer)
4. 05:55 PM - Re: need engineer type to run a calculation (kirk hull)
5. 06:26 PM - Re: Kitfox flap Handle (Steve Shinabery)
6. 09:32 PM - Re: need engineer type to run a calculation (darinh)
Message 1
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| Subject: | Re: counter wieght rivets |
My later model uses part number 90045 MONEL 3/32 x 1/8 pop rivets. Make sure the
counter weight conforms smoothly with the flaperon or the rivets won't grab
the aluminum. Yes, I had to drill them out before the epoxied set up and redo
rivets.
I'm trying to figure out what rivets to use to attach the counter wieghts to the
flaperon spar. There is a miss print in the manual on the model 4/classic 4
speedster. It is the same miss print as on the rivets for the fuselage butt ribs.
It says to use p/n 95006- 1/8x3/8 AS. Looking at the inventory list shows
95006 as a plastic dent rivet and only 4 in the kit.The only 1/8x3/8 rivets are
in the fuselage kit and are stainless and I assume the are for the butt ribs(total
of 16).Oh, there are 4 of them in the cover and finish kit (not enough).All
the other rivets in the flaperons are aluminum so I assume that is what to
use,but no such rivets in the inventory. Leon Morris/Classic 4 (94)/50%/Flower
Mound,TX
Message 2
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| Subject: | Re: counter wieght rivets |
You are right on what you say. Those rivets are for the leading and trailing egde
rivets on the flaperons. I was questioning the rivets in the middle that go
thru the flaperon spar. I think I may have answered may own question whenI dug
up the equation for determining rivet size. Guess I'll use 1/8x3/8 SS for the
middle rivets,and I plan then to use 1/8x5/16 to attach the butt ribs to the
fuselage. Leon Morris/Classic4/50%/Flower Mound, TX
---- SUE MICHAELS <michaega@verizon.net> wrote:
> My later model uses part number 90045 MONEL 3/32 x 1/8 pop rivets. Make sure
the counter weight conforms smoothly with the flaperon or the rivets won't grab
the aluminum. Yes, I had to drill them out before the epoxied set up and redo
rivets.
>
>
> I'm trying to figure out what rivets to use to attach the counter wieghts to
the flaperon spar. There is a miss print in the manual on the model 4/classic
4 speedster. It is the same miss print as on the rivets for the fuselage butt
ribs. It says to use p/n 95006- 1/8x3/8 AS. Looking at the inventory list shows
95006 as a plastic dent rivet and only 4 in the kit.The only 1/8x3/8 rivets
are in the fuselage kit and are stainless and I assume the are for the butt ribs(total
of 16).Oh, there are 4 of them in the cover and finish kit (not enough).All
the other rivets in the flaperons are aluminum so I assume that is what
to use,but no such rivets in the inventory. Leon Morris/Classic 4 (94)/50%/Flower
Mound,TX
>
>
>
>
>
>
Message 3
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| Subject: | need engineer type to run a calculation |
I am looking for an engineer type to run the calcs on a set of floats and tell
me the displacement. The floats in question are a set of Northaire copies, but
they were scaled down a tad from the 1200# floats.
Any takers? I can supply all the measurements you need.
--------
Leonard Perry
Soldotna AK
Avid "C" / Mk IV
582 IVO IFA
Full Lotus 1260
95% complete
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=126490#126490
Message 4
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| Subject: | need engineer type to run a calculation |
As I am better at picking up the pieces and figuring out how they got there
I would not be the guy to run those calcs. However maybe I could stear you
toward some info to help you do them your self. In the Dec issue of Sport
Aviation on pg 46 there is an article on seaplane design that might help and
I seem to remember a while back an article in Sport Aviation about how to
size floats
-----Original Message-----
From: owner-kitfox-list-server@matronics.com
[mailto:owner-kitfox-list-server@matronics.com] On Behalf Of akflyer
Sent: Monday, July 30, 2007 6:32 PM
Subject: Kitfox-List: need engineer type to run a calculation
I am looking for an engineer type to run the calcs on a set of floats and
tell me the displacement. The floats in question are a set of Northaire
copies, but they were scaled down a tad from the 1200# floats.
Any takers? I can supply all the measurements you need.
--------
Leonard Perry
Soldotna AK
Avid "C" / Mk IV
582 IVO IFA
Full Lotus 1260
95% complete
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=126490#126490
Message 5
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| Subject: | Re: Kitfox flap Handle |
Hey Noel thanks for the info.I did recive pic's and info for the flap
handle.it looks like it will work for me..I will send you pic's of my
N554KF.I will have to start working on it...Steve Shinabery
Message 6
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| Subject: | Re: need engineer type to run a calculation |
Leonard,
How accurate do you want the figure? The reason I ask is that some floats have
complex curves particularly in the hull area and the calculations would be fairly
involved to find exact displacement. If you are looking for a ballpark number,
say plus or minus 5% to 10%, you could simply divide the float into sections
and approximate the sections using a series of varing sizes of cubes (the
more sections, the greater the accuracy)...find the volume of the cubes and
then you would have your displacement. Keep in mind that the float will displace
more water the further under water it is (i.e. a float that is partially submerged
displaces less water than a float that is completely submerged). If
your wondering about my credentials, I am one of those engineer types...a civil
engineer.
This may be a dumb question as I am not up to speed on the various floats offered
but wouldn't the manufacturer have that information for you (they would have
to figure displacement to determine the capacity of the float). If you are
using a scaled down version, simply scale down the displacement the manufacturer
has by the amount your floats are scaled.
--------
Darin Hawkes
Series 7 (under Construction)
914 Turbo
Ogden, Utah
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=126536#126536
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