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03-11-2012, 01:52 AM
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Join Date: Apr 2011
Location: san rafael
Posts: 110
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section 21 page 3 figure 2
in section 21 page 3 figure 2
the diagram shows 3 nutplates along the F-1206A flange on each side
with text that says "2x" instead of "3x" even though there are clearly 3 nutplates, and 3 arrows from the "2x" text.
Is this a mistake in the plans?
Also, it shows diffferent nutplate part numbers for left and right sides.
right sides are K1100-08, left sides are k1000-08
is that also correct?
both sides were match drilled with #19 as directed in the plans, so why have different nut plates?
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03-11-2012, 06:42 AM
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Join Date: Aug 2005
Posts: 845
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Quote:
Originally Posted by tim walter
Also, it shows diffferent nutplate part numbers for left and right sides.
right sides are K1100-08, left sides are k1000-08
is that also correct?
both sides were match drilled with #19 as directed in the plans, so why have different nut plates?
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The different nut plates are because one set will accept a flush head screw. Something is going to be installed later on top of them. I almost noticed them too late.
I think 2X in those drawings refers to the number of rivets per nut plate, not the number of nut plates to be installed.
http://www.schmetterlingaviation.com...t-of-rain.html
__________________
Dave Gamble
Grove City, OH
RV-6 N466PG Purchased already flying - SOLD!
The Book: The PapaGolf Chronicles
Built RV-12
http://www.schmetterlingaviation.com
The Book: Being written.
The above web blogs and any links provided thereto are not instructional or advisory in nature. They merely seek to share my experiences in building and flying Van's RV airplanes.
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03-11-2012, 06:50 AM
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Join Date: Nov 2008
Location: Gloversville, NY
Posts: 1,587
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Quote:
Originally Posted by tim walter
in section 21 page 3 figure 2
the diagram shows 3 nutplates along the F-1206A flange on each side
with text that says "2x" instead of "3x" even though there are clearly 3 nutplates, and 3 arrows from the "2x" text.
Is this a mistake in the plans?
Also, it shows diffferent nutplate part numbers for left and right sides.
right sides are K1100-08, left sides are k1000-08
is that also correct?
both sides were match drilled with #19 as directed in the plans, so why have different nut plates?
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Tim,
If you look closely at the drawing, the "2X" refers to two rivets per nutplate.
The drawing is correct. A K1100-08 nutplate will accept a countersunk flathead screw. The 5 K1100-08 nutplates will eventually be used for the countersunk screws that hold down the floor under the gas tank. That's why they have to be flat to the floor. The K1000-08 nutplates on the other side are not under the gas tank, therefore regular round head screws will be used there. I suggest you double check and make sure you dimpled the #19 holes as instructed on Page 21-02 Figure 1.
Always good to ask if you don't understand something.........
Build on!
John
__________________
John Peck, CFII, A&P, EAA Tech Counselor, Flight Advisor.
?Master Pilot? Award, UFO Member.
RV-12 N37JP 120176 Flying since 2012.
One Week Wonder Build Team, OSH 2018.
VAF paid through 10/2019.
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03-11-2012, 07:00 AM
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Join Date: Nov 2008
Location: Gloversville, NY
Posts: 1,587
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A suggestion re: nutplates
Quote:
Originally Posted by Dgamble
...... I almost noticed them too late. .........
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Good Morning Dave,
Great minds - you posted while I was typing! Here is a suggestion to avoid drilling out and reinstalling nutplates because you confused the very similar K1000's with the K1100's. On those pages where both types are used, go through the plans before you start, and use different color highlighters to shade the part numbers. Seperate the K1000's and the K1100's into two bins, also color coded.
Don't ask me how I learned this  .
John
__________________
John Peck, CFII, A&P, EAA Tech Counselor, Flight Advisor.
?Master Pilot? Award, UFO Member.
RV-12 N37JP 120176 Flying since 2012.
One Week Wonder Build Team, OSH 2018.
VAF paid through 10/2019.
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03-11-2012, 11:19 AM
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Join Date: Apr 2011
Location: san rafael
Posts: 110
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thanks everyone for the replies
yes of course that makes sense now 2x is the rivets per nutplate duh !
no need to drill anything out because I haven't done this step yet, which is why I asked here 
awesome getting help this quickly ! this site rocks
and I did suspect that the nutplate difference would be something to do with the tank, it's nice to have it confirmed.
so far the plans have been spot on, anytime I've had a doubt like this, the plans have been right, and it was just my understanding that was at fault.
many thanks everyone.
Tim
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03-11-2012, 11:21 AM
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Join Date: Apr 2011
Location: san rafael
Posts: 110
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Quote:
Originally Posted by BigJohn
Good Morning Dave,
Great minds - you posted while I was typing! Here is a suggestion to avoid drilling out and reinstalling nutplates because you confused the very similar K1000's with the K1100's. On those pages where both types are used, go through the plans before you start, and use different color highlighters to shade the part numbers. Seperate the K1000's and the K1100's into two bins, also color coded.
Don't ask me how I learned this  .
John
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The colour coding idea is a great one, I've done that on the plans when there are complicted steps, especially those will all different kinds of rivets.
I have a set of coloured sharpies and I circle or underline each rivet type in a diffferent colour on the plans, then on the part the same way with the same pens.
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03-11-2012, 11:27 AM
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Join Date: Sep 2006
Location: Windsor, California
Posts: 924
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Also, be aware that there are a couple of tooling holes that are to be ignored. As I recall, the tooling holes are bigger than the standard #6 or #8 holes. -- David
__________________
David Heal - Windsor, CA (near Santa Rosa)
EAA #23982 (circa 1965) - EAA Technical Counselor and Flight Advisor; CFI - A&I
RV-12 E-LSA #120496 (SV w/ AP and ADS-B 2020) - N124DH flying since March 2014 - 940+ hours (as of September 2020)! 
V AF donation through June 2021.
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03-11-2012, 11:46 AM
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Join Date: Apr 2011
Location: san rafael
Posts: 110
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tooling holes
Quote:
Originally Posted by DHeal
Also, be aware that there are a couple of tooling holes that are to be ignored. As I recall, the tooling holes are bigger than the standard #6 or #8 holes. -- David
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yes I saw that, I thought it was strange.
I don't think there have been any other parts that had tooling holes like that where they can be mistaken for rivet holes.
Most are in the middle of the web area or something obvious where parts don't meet.
These are right on the floor edge where you rivet to the rib flanges.
Also, there is 1 hole on each baggage floor, where it rivets to the center section, that lines up with a large hole in the center section (that I think is a space for the landing gear bracket)
The plans have you fill the hole with a rivet, but it's not actually fastening anything, just filling the hole.
So why drill the hole in the first place?
I thought that was odd.
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