VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.


Go Back   VAF Forums > Model Specific > RV-10
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 09-23-2018, 01:13 PM
lr172 lr172 is offline
 
Join Date: Oct 2013
Location: Schaumburg, IL
Posts: 6,352
Default Filling stall Warning Holes

How did you guys fill the holes in the leading edge for the stall warning device?

I don't have access to the backside of the skin. When filling a hole like this, I like to get a bit of build up to hold the filler in place. If I press it in from the front, there is little likelihood of it hitting the backside of the skin. That leaves me with only .032" of adhesion.

I don't want to pull the fuel tank to get access. These are QB wings.

Larry
__________________
N64LR - RV-6A / IO-320, Flying as of 8/2015
N11LR - RV-10, Flying as of 12/2019
Reply With Quote
  #2  
Old 09-23-2018, 01:36 PM
Plummit's Avatar
Plummit Plummit is offline
 
Join Date: Apr 2010
Location: SoCal
Posts: 1,337
Default

Mine were just left open Larry. I also have an AOA that has a hole in the top of the wing. No big deal, but if you really didn't want the holes now is the time to fill them.

-Marc
__________________
RV-10
N814RV
2021 Donation Made
Reply With Quote
  #3  
Old 09-23-2018, 01:36 PM
ERushing's Avatar
ERushing ERushing is offline
 
Join Date: Apr 2014
Location: Molalla, OR
Posts: 433
Default Pull the tank

I pulled the tanks to leak test them off the wing anyway. Actually, I pulled the tank twice because the first time I forgot to fill the leading edge holes!

It’s really not that big of a deal.
__________________
Eric Rushing
RV-10
90% done, 90% to go.
Looks like an airplane!
Molalla, OR
Reply With Quote
  #4  
Old 09-23-2018, 01:50 PM
togaflyer togaflyer is offline
 
Join Date: Apr 2013
Location: Fl/Ga
Posts: 714
Default

JB Weld epoxy. Quick set.
Reply With Quote
  #5  
Old 09-23-2018, 05:41 PM
DRMA DRMA is offline
 
Join Date: Jan 2016
Location: Sugar Land, TX
Posts: 487
Default

I didn't want to pull the tanks either, but decided that it was what needed to be done. Once I started, pulling the tanks wasn't that hard. It took perhaps 30 - 40 minutes per tank to remove and replace them. Then just inserted the rivets to fill the holes per the plans.

Better to remove the tanks now, before they are closed up and installed, then try to fill the holes with some type of mastic and find you need to pull the tanks to do it right 6 months after first flight.

Cheers,
__________________
Dave Macdonald

RV-10 First Flight April 1, 2020. Phase 1 Complete
2021 VAF Dues Paid (plus a little more)
Reply With Quote
  #6  
Old 09-24-2018, 06:44 AM
Scott Hersha Scott Hersha is online now
 
Join Date: Jan 2005
Location: Cincinnati, OH
Posts: 1,878
Default

My QB wings had an inspection plate on the bottom for access to the back side of the holes for stall warning install. If you end up taking off your wings to gain backside access, this is what I did on mine - rough up the skin a little on the inside with some 80 grit, lay a layer of wetted out fiberglass cloth over that area, and then on the outside squeegee on some epoxy/flox over the hole and into the wet cloth. Let it cure, sand to flush, and smooth with epoxy micro paste or metal glaze. sand to 600 grit wet and you'll never see it when painted.
__________________
SH
RV6/2001 built/sold 2005
RV8 Fastback/2008 built/sold 2015
RV4/bought 2016/sold/2017
RV8/2018 built/Sold(sadly)
RV4/bought 2019 Flying
RV6/Used kit purchased 2021 building
Cincinnati, OH/KHAO
JAN2021
Reply With Quote
  #7  
Old 09-24-2018, 07:42 AM
rockwoodrv9 rockwoodrv9 is offline
 
Join Date: Dec 2011
Location: Meridian ID, Aspen CO, Okemos MI
Posts: 2,745
Default

Is it possible to 3d print a plug that could pop in? You my have to force it a bit.

Since the only knowledge I have of 3d printing is reading Steve's thread, this idea may be nuts. I doubt all the holes are exactly the same size so probably couldnt mass produce them unless they were made a bit bigger and people modified the hole to fit the plug. Just an idea.
__________________
rockwoodrv9a
Williamston MI
O-320 D2A
Flying N376E
Reply With Quote
  #8  
Old 09-24-2018, 09:56 AM
flion's Avatar
flion flion is offline
 
Join Date: Dec 2007
Location: Flagstaff, AZ
Posts: 2,699
Default

If you REALLY don't want to pull the tanks you could use a pulled rivet. Personally, I think it'd be a bigger hassle to get the rivets from ACS and you'll feel kind of silly once you pull the tanks anyway for some other reason. Plus, even when filled, it won't look as nice as solid rivets.
__________________
Patrick Kelley - Flagstaff, AZ
RV-6A N156PK - Flying too much to paint
RV-10 14MX(reserved) - Fuselage on gear
http://www.mykitlog.com/flion/
EAA Technical Counselor #5357
Reply With Quote
  #9  
Old 09-24-2018, 11:10 AM
lr172 lr172 is offline
 
Join Date: Oct 2013
Location: Schaumburg, IL
Posts: 6,352
Default

Thanks for the input. I think that I will try some liquid JB weld. If I push it up in there while in the wing cradle, gravity should coat the backside and make it strong enough. I was thinking filler and not something more liquid.

Larry
__________________
N64LR - RV-6A / IO-320, Flying as of 8/2015
N11LR - RV-10, Flying as of 12/2019
Reply With Quote
  #10  
Old 09-24-2018, 11:26 AM
rocketman1988 rocketman1988 is offline
 
Join Date: Jun 2010
Location: Sunman, IN
Posts: 2,560
Default Yeah...

The issue with filling the hole with rivets is that it is a curved surface. The rivets will give you a flat spot in the curve. Ask me how I know...
__________________
Bob
Aerospace Engineer '88

RV-10
N464RL

Dues+ Paid 2020,...Thanks DR+
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 02:11 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.