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Old 08-11-2017, 03:35 PM
mrhorspwr mrhorspwr is offline
Join Date: Aug 2016
Location: Okc, Oklahoma
Posts: 29

Its not easy but I was able to put a 1/4" rotary file bit in a 90 deg angle grinder and slowly grind away at it. Sounds really dangerous but it wasnt to bad just dont give the grinder full gas and it will work.
Mat -builder assistant
started Rv14 May 2016
emp kit and fuse kit done
wings almost done
canopy done
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Old 08-11-2017, 05:29 PM
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Tilford Tilford is offline
Join Date: Nov 2008
Location: KY
Posts: 86
Default Technique from E's site

Here's a link that shows how another builder did this. Not sure it's any easier. I'm still several weeks away from this step.
RV 14A Emp. Complete
Fuselage in progress.
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Old 08-11-2017, 08:48 PM
Stockmanreef Stockmanreef is offline
Join Date: Nov 2012
Location: Midland, mi
Posts: 469

so why should I bother filing it down. I understand maximizing the aft angle for landing, but do I care how much forward the angle is? How often am I going to push the stick full forward? Just curious. I am sure that someone is going to flame me for this post.
Ken Stockman
Midland, MI
EAA Chapter 1093 member

RV-14 (serial number 140073)
N73XP (at least that # reserved now)
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Old 08-12-2017, 03:55 AM
salto salto is offline
Join Date: Apr 2015
Location: Wee Waa Australia
Posts: 236

Spin recovery perhaps..
Kit 140241
Tail Feathers done
Fuselage kit completed.
wings almost complete.
Flaps and ailerons done.
Canopy next. Phew!
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Old 09-17-2017, 04:22 PM
Don E Don E is offline
Join Date: Aug 2016
Location: West Chester, PA
Posts: 26

Originally Posted by MED View Post
I just completed these steps. As you said, filing the upper bracket was fairly easy. However, filing the lower stop was indeed a PITA. The only way I was able to do it, and get the two stops to hit together, was to use thin strips of 100 grit sand paper (~1/4"), threading them around the tube that the bracket hits with the rough side on the stop side. By holding some slight control force against the stop, it was possible to then pull the sandpaper out. This caused the sandpaper to remove a tiny bit of the stop ( I'm guessing about 2 atoms ). Repeat for a long time until the stops hit together. Fortunately, when I got the two stops hitting together, it was within spec. for travel. There is probably an easier way . . .
I just completed this process. Neither forward or back angle was quite up to minimum when I started, but I focused first on getting both sides hitting the stops simultaneously. I cut two strips of paper 8 1/2 long and 5/16" wide, held the stick bases neutral and threaded them down past the top stop, around the tube that contacts the stops and out over the bottom stop, one on each side. Relax the stick forward against the stop and tug each strip. On mine, the right was tight, no contact on the left. Hold the stick back and test the other way with a tug. Mine was tight on the left, no contact on the right. I then cut two strips of cloth-backed sandpaper, one 220 grit, the other 400. Worked on one side at a time with the 220 until there started to be some resistance to the tug (always using the plain paper strips to check.) Like in the post above, use the stick base to maintain pressure against the sandpaper on the stop you are sanding. Then finished with 400. My sandpaper strips were over a foot long and I would pull back and forth so I didn't have to keep threading it thru. Took awhile but was easy and foolproof. Best part is, when I got both sides contacting simultaneously, the stick travel was perfectly in the middle of the desired range.
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Old 09-21-2017, 07:52 PM
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bkervaski bkervaski is offline
Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 491

I'm at this step right now .. it's so close, but I can fit a piece of paper under the right stop .. dangit! Anyone with additional advice before I proceed with Don's sandpaper method?
#140376 RV-14A QB IO-390 Thunderbolt
Reserved: N196
Progress: Firewall Forward
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Old 09-28-2017, 11:50 AM
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bkervaski bkervaski is offline
Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 491

Just a follow up on this for anyone else that hasn't got to this point .. not as bad as it sounds .. while it seemed like it took us a 10 hours to file the stops to spec, from start to finish was about an hour and a half and it's perfect. We just used a large file and a digital pitch gauge. File, refit, measure, repeat, etc. You do have to remove the linkage to easily get to the bottom stop.
#140376 RV-14A QB IO-390 Thunderbolt
Reserved: N196
Progress: Firewall Forward
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Old 09-28-2017, 12:07 PM
control control is offline
Join Date: Feb 2006
Location: Stockholm, Sweden
Posts: 368

I also just did it and was lucky, only needed to file the top left stop to get both stick to reach the stop at the same time.

The bottom stops were perfect without me touching them.
RV-14 kit #140138
working on the finish kit
wings, tail kit and fuselage basically done
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