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Old 05-02-2014, 06:20 PM
dbhill916's Avatar
dbhill916 dbhill916 is offline
Join Date: May 2013
Location: Westerville, OH
Posts: 172
Default 6 vs 7 rivets, Roll Bar Attach Plate

Hi guys,

a fairly trivial question this time. The Book calls out 6 LP4-3's in 23-03 step 3 figure 2, but there are 7 holes in the corresponding Roll Bar Attach Plates (F-1205B's) and the Mid Fuse Brace (F-1205A). In a rare fit of self restraint, I filled the holes in question with cleco's pending feedback from this august assembly.

Thanks in advance,
David B. Hill
RV-12 #0760
Dues paid through 6-2022
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Old 05-02-2014, 06:24 PM
Mike S's Avatar
Mike S Mike S is offline
Senior Curmudgeon
Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 16,177

Just a WAG here, but this could be a tooling hole, or it may be used further along in the plans---which I suspect is the case.

Usually pays to read ahead in the plans when something like this comes up.
Mike Starkey
VAF 909

Rv-10, N210LM.

Flying as of 12/4/2010

Phase 1 done, 2/4/2011

Sold after 240+ wonderful hours of flight.

"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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Old 05-02-2014, 07:14 PM
DHeal DHeal is offline
Join Date: Sep 2006
Location: Windsor, California
Posts: 1,009

It's been a while since I worked on that piece, but as I recall it is basically a tooling hole that is used on the right (?) side for the cockpit overhead light wiring? On the other side, I just filled it with a rivet. My RV-12 is out in the hangar so I can't say for sure. YMMV
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 - 1,110+ hours (as of Jan 2022)!
VAF donation through June 2022.
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Old 05-02-2014, 08:46 PM
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bhassel bhassel is offline
Join Date: Jan 2005
Posts: 979

On page 40-12 (Lighting) you enlarge the hole to 3/8 to run the wiring.

Bob Hassel

Subscription Paid for 2021

Home is where the hanger is...
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Old 05-02-2014, 09:12 PM
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XOverZero XOverZero is offline
Join Date: Aug 2010
Location: Irvine, CA
Posts: 428

The one on the right side has a hole to pass through the map light wiring. Since the attach plates start out as two of the exact same part, they both have that 'extra' hole. The builder makes them either left or right depending on which side of the plate gets the countersinks. You can plug the hole on the left side...or not. Your choice. I left mine open. Anything to save weight, eh?
John Halcrow
Tustin, CA
RV-12 120682
Emp/TC done; Wings done; Fuse kit done

"Keep flying. Malcolm Reynolds
Paid up until Aug 2022
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