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02-01-2015, 11:17 PM
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Join Date: Jan 2005
Location: Irvine, CA
Posts: 873
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Will these squeezer yokes work for the RV-12?
As you probably know, Van's recommends a 3-inch squeezer yoke for the RV-12. I own a 2 1/2-inch yoke from a previous project. Do you think I can get by with the 2 1/2-inch yoke, or are there a lot of instances where you need the full 3-inch reach? I do have a rivet gun and bucking bar I can use if there are only a few solid rivets I won't be able to reach with the 2 1/2-inch yoke.
I also own a longeron yoke and Avery C-frame. Has anyone found these useful for building an RV-12?
Thank you.
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Mark
RV-12iS Fuselage
RV-9A Project: Sold
VAF donation made for 2020
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02-02-2015, 06:10 AM
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Join Date: Oct 2010
Location: Elkton, Md.
Posts: 1,654
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You should be fine since you have the rivet gun. The c-frame probably won't get used much, at least mine doesn't. I probably use the gun more than most others do.
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Wag Aero Sport Trainer built,sold and wrecked
N588DF RV12 #336 built, sold and alive and well in New York
N73DF RV12 #244 built, sold and alive and well in Florida
N91 RV RV9 I wish I could say I built this one! Mark Santoleri hit the ball out of the park on this gem.
Currently restoring a 1978 Citabria GCBC
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02-02-2015, 06:59 AM
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Join Date: Aug 2010
Location: Irvine, CA
Posts: 416
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Mark, check PMs. -- JH
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John Halcrow
Tustin, CA
RV-12 120682
Emp/TC done; Wings done; Fuse kit done
"History teaches us that men and nations behave wisely once they have exhausted all other alternatives." --Abba Eban
Paid up until Aug 2021
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02-02-2015, 11:21 AM
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Join Date: Jan 2005
Posts: 963
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If memory serves me correctly (it rarely does), I used even larger than a 3" extension on the rear bulkhead of the tailcone. Of course you can just use the gun, but if you like squeezing you may need a larger size.
Bob
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Bob Hassel
NM
Subscription Paid for 2020
Home is where the hanger is...
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02-02-2015, 12:51 PM
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Join Date: Apr 2010
Location: Tucson, AZ
Posts: 461
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Quote:
Originally Posted by bhassel
If memory serves me correctly (it rarely does), I used even larger than a 3" extension on the rear bulkhead of the tailcone. Of course you can just use the gun, but if you like squeezing you may need a larger size.
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I think your memory served you right this time  . I remember having issues in getting the rear bulkhead done with the 3" yoke. It was borderline and as I had no experience with a bucking bar, I chose to get a larger yoke (I think 4 or 4.5") which made riveting the rear bulkhead easy as pie.
I you are good with the bucking bar, then you would not need that as there are only a few rivets where you'd wish you had the full 3" yoke or something even deeper.
I can't comment on the C-frame but I never felt I wanted one during the built. Now if you' wanted to use CS pull rivets on the wing skins and had to dimple the holes, that would probably be a different situation.
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02-02-2015, 07:01 PM
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Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 2,820
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I'd recommend a river gun with an offset rivet set for the bulkhead. The clearance was tight for the squeezer. If you lay thin cardboard on the aluminum you will protect it from scratches during the riveting.
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02-02-2015, 11:11 PM
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Join Date: Aug 2010
Location: Marshall TX (KASL)
Posts: 1,783
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The 3" yoke will do every solid rivet on the -12, including the rear bulkhead. It's just a matter of getting the angle right. A couple on the rear bulkhead will have you scratch your head, then you move it just the right way and say "Of course!"
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02-02-2015, 11:11 PM
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Join Date: Jan 2005
Location: Irvine, CA
Posts: 873
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Thanks everyone for the feedback. Since I already have the 2 1/2-inch yoke, I'll start with it, and if there are dozens of rivets I can't reach, I'll get a longer yoke!
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Mark
RV-12iS Fuselage
RV-9A Project: Sold
VAF donation made for 2020
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02-02-2015, 11:26 PM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
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Quote:
Originally Posted by Bill_H
The 3" yoke will do every solid rivet on the -12, including the rear bulkhead. It's just a matter of getting the angle right. A couple on the rear bulkhead will have you scratch your head, then you move it just the right way and say "Of course!"
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Bill is right.
If you weren't able to rivet the aft bulkhead with a 3" yolk you either are no good with puzzles or you didn't hold your tongue right....... 
The pushrod opening was specifically designed to make it possible.
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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02-03-2015, 05:17 PM
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Join Date: Jan 2005
Posts: 963
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Quote:
Originally Posted by rvbuilder2002
Bill is right.
If you weren't able to rivet the aft bulkhead with a 3" yolk you either are no good with puzzles or you didn't hold your tongue right....... 
The pushrod opening was specifically designed to make it possible.
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I think I resemble both
Bob
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Bob Hassel
NM
Subscription Paid for 2020
Home is where the hanger is...
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