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08-29-2016, 07:33 AM
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Join Date: Feb 2005
Location: Shawnee, Kansas
Posts: 804
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Stupid basic rivet sizing question
For two sheets of dimpled .032... AN426AD3-?
I just need to order a bunch and I'd like to be sure.
__________________
Bruce Meacham
Building RV-4A 18ZM
Built/Own RV-4 254MM
First RV RV-3 3456B
VAF annual donation on autopay
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08-29-2016, 08:18 AM
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Join Date: Jun 2009
Location: Danville, IN (West of Indy)
Posts: 199
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The RV7 typically uses AD3-3.5 in situations like this. An AD3-3 may also work.
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Michael
Danville, IN
RV-7A Canopy/Finishing
N317PU Reserved
2020 Dues paid (February 2020)
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08-29-2016, 08:37 AM
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Join Date: Feb 2006
Location: Senoia, Georgia
Posts: 800
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You want to be sure.... order a 1/4# of each 3-3.5, -4, -5, etc. You won't regret it!
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Jerry Esquenazi
RV-8 N84JE
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08-29-2016, 08:41 AM
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Join Date: Jan 2007
Location: Battleground
Posts: 4,348
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Let's do the math, just in case I screw up, others can double check.
AN3 rivet diameter = .09375
1.5x diam. = .140
.032 + .032 + (.09375 x 1.5) = .204
AN3-3 = .1875 - .064 = .1235
AN3-3.5 = .2187 - .064 = .1391 looks like a winner....
AN3-4 = .250 - .064 = .186
I would be tempted to try the -3 and see if the shop head will pass. Often dimpled holes will be slightly oversized. At 1.5d protrusion, you might find some cleating over. The -3, which is slightly less than 1.5d protrusion would be easier to set.
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Smart People do Stupid things all the time. I know, I've seen me do'em.
RV6 - Builder/Flying
Bucker Jungmann
Fiat G.46 -(restoration in progress, if I have enough life left in me)
RV1 - Proud Pilot.
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08-29-2016, 09:04 AM
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Join Date: Feb 2005
Location: Shawnee, Kansas
Posts: 804
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trays-o-rivets
My rivet tray has been through several RV builds  I've lost track of which are the one's for two sheets of .032 and I can't find them anymore. Time to resupply and sort.
__________________
Bruce Meacham
Building RV-4A 18ZM
Built/Own RV-4 254MM
First RV RV-3 3456B
VAF annual donation on autopay
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08-29-2016, 10:55 AM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,515
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Quote:
Originally Posted by RV8Squaz
You want to be sure.... order a 1/4# of each 3-3.5, -4, -5, etc. You won't regret it!
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Buy a hundred dollars of rivets and save $100 in shipping for small lots later. It is like they are free!
__________________
Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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08-29-2016, 02:55 PM
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Join Date: Nov 2014
Location: Richmond Hill, GA (KLHW)
Posts: 2,183
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Most of the sheet metal to structure on my -7A is held together with AN3-3.5 per Van's plans. I keep at least a 1/4 lb on hand.
As others have said, order a variety and have them ready when needed. You might find another builder/flyer nearby that will add to the order.
__________________
Ray
RV-7A - Slider - N495KL - First flt 27 Jan 17
O-360-A4M w/ AFP FM-150 FI, Dual PMags, Vetterman Trombone Exh, SkyTech starter, BandC Alt (PP failed after 226 hrs)
Catto 3 blade NLE, FlightLines Interior, James cowl, plenum & intake, Anti-Splat -14 seat mod and nose gear support
All lines by TSFlightLines (aka Hoser)
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08-29-2016, 03:19 PM
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Join Date: Jul 2013
Location: US
Posts: 2,246
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09-02-2016, 04:47 PM
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Join Date: Dec 2013
Location: Santa Clara, CA
Posts: 249
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Like others said, AN rivets are cheap, get a bunch of each size (if you were doing CherryMax, that might be a bad idea...says the guy who just spent ~$40 on 40 cherry rivets).
I personally just use a ruler for those cases - put the rivet in the hole (without squeezing it), and measure how much protrudes out on the other side.
Once you've done this a few times you'll also be able to tell just by looking (but I'm not going to recommend not checking with a proper measurement device  ).
__________________
Rodrigo Damazio Bovendorp
San Jose, CA
RV-10 builder #41623
Build log at http://www.airplane.build/
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