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Old 10-24-2016, 10:57 AM
challinan challinan is offline
Join Date: Jun 2016
Location: Punta Gorda, FL
Posts: 46

Originally Posted by rapid_ascent View Post
From figure 2 it seems like they intended for you to rivet those 2 pieces together before putting it together with the rest of the rudder assembly.
If you follow the assembly sequence, it is not possible to rivet the brace before, because the spar has the lower rib already riveted to it in an earlier step, blocking access to the inside of the rudder brace. The right bucking bar seems to be the generally accepted solution. Thanks to all who answered!

Chris Hallinan
Punta Gorda, FL
RV-14A (N914CH Reserved)
* (VS, Rudder, HS complete, elevators in progress)
* Donated for 2016, 2017
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Old 10-24-2016, 11:02 AM
control control is offline
Join Date: Feb 2006
Location: Stockholm, Sweden
Posts: 386

I remeber that, could not set them enough with my hand squeezer but when I attacked them again with the pneumatic one it was easy
RV-14 kit #140138
working on the finish kit
wings, tail kit and fuselage basically done
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Old 10-24-2016, 11:05 AM
jswareiv jswareiv is offline
Join Date: Dec 2006
Location: New Orleans, LA
Posts: 461
Default Tungsten Bars

Originally Posted by JDBoston View Post
Have you found this rectangular shaped one to be generally useful? I have this one:

But do wonder which one to get if I get a second one. Yes I know you never can have enough of them But at $100+ a pop two will suffice.

Opinions? I am working on the rudder right now.
Yes, if you buy the rectangular one ( and also the fatter one ( (my go to bar whenever possible), you will never use the other bucking bars. Once you go tungsten, you'll never go back. Word of caution, ALWAYS make sure you have a towel or some other soft surface on any aluminum below what you are working on. If you drop it, it will cause damage! Yes, ask me how I know.
First RV-14 Flight 04/17/2016
Serial #140087, N214SW
Dues paid to 2018.
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Old 10-24-2016, 12:03 PM
challinan challinan is offline
Join Date: Jun 2016
Location: Punta Gorda, FL
Posts: 46
Default Pneumatic squeezer

A pneumatic squeezer is on my "wish list".
Chris Hallinan
Punta Gorda, FL
RV-14A (N914CH Reserved)
* (VS, Rudder, HS complete, elevators in progress)
* Donated for 2016, 2017
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Old 11-27-2017, 06:16 PM
Aluminum Aluminum is offline
Join Date: Jul 2017
Location: San Jose, CA
Posts: 51

For posterity: I just checked with mothership and the response was it's safe to substitute with Cherry CR-3213-4-? of the proper length for the four bottom rivets in the rudder horn.

I did actually make a small bucking block to fit inside (cutting tungsten is fun) but couldn't get a decent shop head with the silly thing squirreling sideways no matter how I tried to hold it.

You should check with mothership for every such situation to make sure it still meets design loads after fastener substitution.
Dan V
'91 Zodiac flying since 2013
RV-14A in progress
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Old 11-29-2017, 01:01 AM
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HAL Pilot HAL Pilot is offline
Join Date: Nov 2015
Location: Las Vegas NV
Posts: 52

I happened to have some iron bars that were about 1.5 inches wide, 3 inches long, and about 3/16 thick. I ground the center a bit thinner to slide in there but kept some mass on the sides. Did one side standard first then used the thin bucking bar I created, works pretty well.

RV14A Tail kit build in process
RV 14 WIKI in process, residing on Drop Box

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EAA 1300
Donation Paid 2017 (Military)
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Old 11-29-2017, 07:43 AM
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bkervaski bkervaski is offline
Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 549

There is a tungsten 1" bucking bar out there with one end angled that comes in handy, including making the rudder horn easy to deal with.

Here is the one I use, the pic doesn't show the angle -
#140376 RV-14A QB IO-390 Thunderbolt
Reserved: N196
Progress: All Kits Done
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