VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics


Go Back   VAF Forums > Model Specific > RV-8/8A
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 06-13-2017, 05:44 PM
jdmunzell jdmunzell is offline
 
Join Date: Jun 2005
Location: Hamilton, VA
Posts: 392
Default My RV-8 Horizontal Stabilizer and SB 14-01-31

Question for all those affected by this SB. I have yet to install my horizontal stabilizer to the fuselage, so the entire structure, while completed years ago, is free and clear of the aircraft.

This SB looks pretty detailed and involves drilling out a lot of rivets and undoing a bit of construction! I'm not crazy about doing that on a "new" structure with no cracks anywhere.

I'm debating whether to just go ahead and do it before it's installed and be done with the SB or just install as is, and comply with the SB requirements during inspections.

What's the consensus amongst everyone and particularly the DARs and inspectors, since this covers all the -6, -7, -8 airplanes..??
__________________
Jeff
-8 wings, finishing up
-8 QB Fuse just arrived!!!
Reply With Quote
  #2  
Old 06-13-2017, 06:36 PM
brad walton brad walton is offline
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 475
Default

I bought the SB repair kit but have yet to install it on my 380 hour RV 8. I'm not looking forward to disassembling painted parts. So I watch it carefully. But if i was at your stage of construction, I would do the SB repair
Reply With Quote
  #3  
Old 06-13-2017, 07:20 PM
Mark Dickens's Avatar
Mark Dickens Mark Dickens is offline
 
Join Date: Apr 2012
Location: Collierville, TN (KFYE)
Posts: 804
Default

I know someone who decided to install the SB kit before mounting his very nicely made HS to his fuselage. He ended up having to rebuild the HS because the process of drilling out all the rivets and replacing them resulted in out of spec holes and loss of edge distance in some cases. I haven't installed that SB yet and only will if I see cracks. If you've already built your HS and are happy with it, I'd leave it alone until you have to install it.
__________________
RV-8 #81077 Super Slow Build
Titan IOX-370, Dual P-Mags, AFP FM200A FI, Sensenich GA Prop
First Flight November 20, 2016
Phase One Complete June 1, 2017
http://www.marksrv8.com
2017 Donation Complete!
Reply With Quote
  #4  
Old 06-14-2017, 10:15 AM
Blain's Avatar
Blain Blain is offline
 
Join Date: Mar 2013
Location: El Dorado Hills, CA
Posts: 625
Default

I did the install after paint but before final assembly with the fuse. Be careful, take your time and plan on about 12 hours. Not a difficult job. One less thing to be concerned about later.
__________________
Blain
R-22 sold.
RV-8 AW Cert 02-09-17
N82 Sierra Tango
Avatar courtesy of AircraftStickers.com!
Dues gladly paid thru Nov. 2018(my reminder)
.
Reply With Quote
  #5  
Old 06-14-2017, 11:25 AM
Robert Anglin Robert Anglin is offline
 
Join Date: Mar 2008
Location: houston, texas
Posts: 719
Default After the fact.

We did it after all the facts. Glad we did as it would have messed up a new paint job if we had done that one as well. Not hard, just take your time and you will get there. Hope this helps, R.E.A. III #80888
Reply With Quote
  #6  
Old 06-14-2017, 12:50 PM
Snowflake's Avatar
Snowflake Snowflake is offline
 
Join Date: Oct 2009
Location: Victoria, BC, Canada
Posts: 2,969
Default

I applied the SB to a completed, flying, unpainted (but polished) aircraft. Given the option, I would rather not have taken a flying aircraft out of service, and risked damage to parts during the extra handling and disassembly required.

Applying it now before it goes together will be easier in the long run.
__________________
Rob Prior
1996 RV-6 "Tweety" C-FRBP (formerly N196RV)
Reply With Quote
  #7  
Old 06-19-2017, 06:14 PM
rwagner24 rwagner24 is offline
 
Join Date: Aug 2011
Location: Jonestown Pa
Posts: 68
Default

I ended up building a new HS because of edge distance problems.
Reply With Quote
  #8  
Old 06-19-2017, 09:21 PM
jdmunzell jdmunzell is offline
 
Join Date: Jun 2005
Location: Hamilton, VA
Posts: 392
Default

Quote:
Originally Posted by rwagner24 View Post
I ended up building a new HS because of edge distance problems.
Did you actually have cracks or did you just choose to do the SB to get it over with?
__________________
Jeff
-8 wings, finishing up
-8 QB Fuse just arrived!!!
Reply With Quote
  #9  
Old 06-20-2017, 06:27 AM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 4,007
Default

I am getting close to packing up and heading to the airport with my 7. I did the SB on my HS. It took more than the 12 hours that BLAIN did.

I figured that (1) sooner or later it needed to be done, (2) it makes the spar stronger in shear in the weaker region between the skin and the center, and (3) my skills are going to wither as time goes by. Last -it was going to bother me flying with it unfinished.

Suggestions - not new - take your time, take extra care to see your work while drilling out the rivets. A vee stand was extremely helpful. Be prepared for installation of larger rivets or cherrymax as specified by the instructions (excellent btw). Think carefully about how to buck the rivets. Take care in the match drilling as it is a confined space and good alignment leaves smaller holes. Get real comfortable with your offset rivet set.

All said, I had one rivet that had to be increased in size due to drilling out the old rivet.
__________________
Bill

Op Lims in hand 12-7-17
Prep for 1st flight underway.
Reply With Quote
  #10  
Old 06-20-2017, 11:57 AM
rwagner24 rwagner24 is offline
 
Join Date: Aug 2011
Location: Jonestown Pa
Posts: 68
Default

My plane isn't finished yet. Figured I better just do it now before regretting it later. Couldn't get the edge distance on the reinforcing plates.
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 10:23 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.