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07-25-2013, 01:31 PM
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Join Date: Nov 2007
Location: NJ
Posts: 1,747
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Flaring tool operation....
Just did my first flares today. The first one I did turned out to be a bit too wide despite using the depth stop as a guide. I also noted I could really crank down on the cone making it expand further than desired. This technique proved to make a flare which was too wide for the AN-6 fitting.
The second attempt I puposely inserted the tubing just shy of the depth stop and made certain not to crank down the cone to excess. This made a very nice fare that I assume is usable/acceptable.
My question is, how do you make consistent flares? Is this just a feel/sight type of thing? If you get it wrong does this introduce leaks?
__________________
My ATC opinion is NOT an official FAA recognized opinion, so any advice you get from me is ONLY my opinion.
Track my RV7A!!
Bought my flying -7A
Building an -8! (Fuse)
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07-25-2013, 01:35 PM
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Join Date: Sep 2007
Location: WA
Posts: 988
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lubricate and feel...
Make sure to use a small amount of lubricant on the mandrel... do a couple of scrap pieces and you will notice a consistent increase in resistance when making the flare... for me, this is just about the perfect stoping point.
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Stephen
RV7 powered by a lycoming thunderbolt IO-390
turning a whirlwind HRT prop
with more hours flying than building... 2,430 on the hobbs!
ORCA Flight
Race 771
margarita!
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07-25-2013, 02:01 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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Dont forget to remove all cutting marks from the end of the tube before flaring.
Scotch brite wheel works well to polish out marks.
And ditto on the lube.
__________________
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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07-25-2013, 02:09 PM
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Join Date: Jun 2005
Location: Cedar Park, TX
Posts: 3,152
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Yes.
A little craftsmanship is required but clearly you already figured that out. You are a builder.
__________________
Scott Card
CQ Headset by Card Machine Works
CMW E-Lift
RV-9A N4822C flying 2200+hrs. / Cedar Park, TX
RV8 Building - fuselage / showplanes canopy (Done!)
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07-25-2013, 02:29 PM
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Join Date: Nov 2009
Location: Yardley, PA
Posts: 1,334
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Hey T,
I second what Stephen said - use some lubricant, and stop the moment you feel the resistance change (increase).
As for the depth stop, I'm using the Parker tool and mine seems to be accurate.
Last edited by Av8torTom : 07-26-2013 at 04:26 PM.
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07-25-2013, 02:32 PM
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Join Date: Apr 2010
Location: Ridgeland, SC
Posts: 2,584
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Tony---
you can do it!
__________________
Tom Swearengen, TS Flightlines LLC, AS Flightlines
Joint Venture with Aircraft Specialty
Teflon Hose Assemblies for Experimentals
Proud Vendor for RV1, Donator to VAF
RV7 Tail Kit Completed, Fuse started-Pay as I go Plan
Ridgeland, SC
www.tsflightlines.com, www.asflightlines.com
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07-25-2013, 02:44 PM
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Join Date: Dec 2010
Location: Hilton Head Island
Posts: 1,086
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And once you "do it" guess what?
You ain't done!
Just wait until you have to flare a tube for the fuel system and then have to bend it to fit in the fuselage 
Here's my "builder tip" - BUY A LOT OF TUBING!
__________________
John Mastro
RV-8
Last edited by SmilingJack : 07-25-2013 at 03:02 PM.
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07-25-2013, 02:56 PM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,665
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Good vs Bad
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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07-25-2013, 04:57 PM
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Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,931
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flare tool
What flare tool is a good one? I need to buy one.
__________________
Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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07-25-2013, 06:48 PM
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Join Date: Nov 2007
Location: NJ
Posts: 1,747
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Tom, I'm using the Parker tool as well. Let me try a few more flares. Maybe I just over-torqued the horn the first time.
I'm no expert yet but it IS fun flaring the tubing.
__________________
My ATC opinion is NOT an official FAA recognized opinion, so any advice you get from me is ONLY my opinion.
Track my RV7A!!
Bought my flying -7A
Building an -8! (Fuse)
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