VansAirForceForums  
Home > VansAirForceForums

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

Keep VAF Going
w/a Donation






VAF on Twitter:
@VansAirForceNet


Go Back   VAF Forums > Main > RV General Discussion/News
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 09-06-2023, 08:48 PM
greghughespdx's Avatar
greghughespdx greghughespdx is offline
 
Join Date: Nov 2011
Location: Aurora, OR
Posts: 1,407
Default SB-00043 and Section 9 for RV-10 and R-14/14A Published

Today Van's published SB-00043, which describes inspection for potential elevator cracks and a method of remediation on RV-10/RV-14, as well as recommended preventative steps that can be taken. In addition, RV-10 KAI section 9 and RV-14 KAI section 9 have both been updated to include the additional steps during original construction.

The related SB-00043 KIT used to comply with the bulletin can be found at this link.
__________________
Greg Hughes - Van's Aircraft
Van's web site | Instagram | Facebook
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Building RV-8A since Sept 2014
Dual AFS 5600, Avidyne IFD 440, Whirlwind 74RV, Superior XP IO-360
VAF build thread - Flickr photo album - Project Facebook page
Aurora, OR (EAA Chapter 105)

Reply With Quote
  #2  
Old 09-06-2023, 09:09 PM
TASEsq TASEsq is offline
 
Join Date: Aug 2017
Location: Melbourne, Australia
Posts: 644
Default

Hi Greg,

Can you elaborate on the purpose of the additional elevator counterweight? E-01414? (I assume thatís that it is from the instructions?)

Are the cracks caused by some kind of flutter or vibration?
__________________
___________
Trent Stewart
Melbourne, Australia
http://www.tasrv14.blogspot.com.au/
Reply With Quote
  #3  
Old 09-06-2023, 09:30 PM
greghughespdx's Avatar
greghughespdx greghughespdx is offline
 
Join Date: Nov 2011
Location: Aurora, OR
Posts: 1,407
Default

Quote:
Originally Posted by TASEsq View Post
Hi Greg,

Can you elaborate on the purpose of the additional elevator counterweight? E-01414? (I assume thatís that it is from the instructions?)

Are the cracks caused by some kind of flutter or vibration?
Sure. The E-01414 is covered in the Service Bulletin, starting at Step 16. The purpose is to offset the additional mass introduced aft of the spar, inside the trailing edges, when the sealant is applied internally.

The cracks are fatigue cracks, determined to be the result of pulse vibration such as happens from propeller wash/pulses and similar. The engine, propeller, and other aircraft configuration details will result in some variance in that regard, but the proactive placement of the sealant compensates for those potential fatigue-related stresses.
__________________
Greg Hughes - Van's Aircraft
Van's web site | Instagram | Facebook
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Building RV-8A since Sept 2014
Dual AFS 5600, Avidyne IFD 440, Whirlwind 74RV, Superior XP IO-360
VAF build thread - Flickr photo album - Project Facebook page
Aurora, OR (EAA Chapter 105)

Reply With Quote
  #4  
Old 09-06-2023, 09:35 PM
TASEsq TASEsq is offline
 
Join Date: Aug 2017
Location: Melbourne, Australia
Posts: 644
Default

Thank you for the extra info.
__________________
___________
Trent Stewart
Melbourne, Australia
http://www.tasrv14.blogspot.com.au/
Reply With Quote
  #5  
Old 09-06-2023, 11:12 PM
CarloJ CarloJ is offline
 
Join Date: Dec 2021
Location: Plano, TX
Posts: 7
Default

Greg,

I see that RV-14 KAI chapter 9 (elevator) has also been updated to match the new SB. In addition to the sealant instructions, the new chapter also revised the part numbers for the front and rear spars. Can you tell us what changes were made to the spars (or is this just a nomenclature change)?

Thanks!
__________________
Carl

RV-14A 141141 - Building
C172 - Sold
Reply With Quote
  #6  
Old 09-06-2023, 11:57 PM
ragedracer1977 ragedracer1977 is offline
 
Join Date: Jan 2019
Location: Peoria
Posts: 7
Default

If we have an empennage kit thatís not started yet, do we need to order the entire kit or can the counterweights be ordered separate?
Reply With Quote
  #7  
Old 09-07-2023, 06:50 AM
Auburntsts's Avatar
Auburntsts Auburntsts is offline
 
Join Date: Jan 2005
Location: Tampa, FL
Posts: 3,435
Default RV-10 Counterweight

Is the E-01414 Counterweight RV-14 specific?
__________________
Todd "I drink and know things" Stovall
PP ASEL-IA
RV-10 N728TT - Flying!
EAA Lifetime Member
WAR EAGLE!
Reply With Quote
  #8  
Old 09-07-2023, 08:14 AM
ferrari308guy ferrari308guy is offline
 
Join Date: Aug 2022
Location: Denver, CO
Posts: 3
Default

Quote:
Originally Posted by Auburntsts View Post
Is the E-01414 Counterweight RV-14 specific?
I was also wondering this. I looked through the revised Section 9 plans for the RV-10 and RV-14 (posted yesterday) and while both talk about adding the sealant to the rear spar, neither make reference to the new E-01414 counterweight.

If the counterweight is meant to offset the added mass from the sealant, then I'm confused why the SB advises it should be added, but the revised plans (which also call for the sealant to be added) do not.

Perhaps the revised part numbers for the rear spar imply a change that means the counterweight isn't needed if you're using the new parts, versus the originals? Although it appears only part numbers for the RV-14 changed. The RV-10 part numbers appear the same.

Last edited by ferrari308guy : 09-07-2023 at 08:21 AM.
Reply With Quote
  #9  
Old 09-07-2023, 10:39 AM
Bavafa Bavafa is offline
 
Join Date: Oct 2007
Location: Sacramento, CA
Posts: 4,510
Default

Quote:
Originally Posted by steve997 View Post
Could we instead order 4 new E-614 and trim less lead off to increase the amount of counter-weight? If so, what total mass do we need on each side (L/R including inner and outer ?
What I have done is to install two additional nut plates in that area that matches the same counter weight and balanced my elevators after the paint using those nut plates. I am planning on just adjusting the weight after I have completed this SB. If you have not installed the elevator cap on yet, this would be an easy thing to do that will set you up for any future balancing of the elevator.
__________________
Mehrdad
N825SM RV7A - IO360M1B - SOLD
N825MS RV14A - IO390 - SOLD
N258SM RV14A - IO390EXP119 - Out of Paint shop & flying
Dues paid
Reply With Quote
  #10  
Old 09-07-2023, 10:50 AM
CarloJ CarloJ is offline
 
Join Date: Dec 2021
Location: Plano, TX
Posts: 7
Default

Quote:
Originally Posted by ferrari308guy View Post
I was also wondering this. I looked through the revised Section 9 plans for the RV-10 and RV-14 (posted yesterday) and while both talk about adding the sealant to the rear spar, neither make reference to the new E-01414 counterweight.

If the counterweight is meant to offset the added mass from the sealant, then I'm confused why the SB advises it should be added, but the revised plans (which also call for the sealant to be added) do not.

Perhaps the revised part numbers for the rear spar imply a change that means the counterweight isn't needed if you're using the new parts, versus the originals? Although it appears only part numbers for the RV-14 changed. The RV-10 part numbers appear the same.
For the RV-14, it looks like the plans revisions alter the amount removed from the inboard counterweights (leaves 1/32" vs flush). I assume this negates the need for the new E-01414 counterweight. The RV-10 plans are likely the same.
__________________
Carl

RV-14A 141141 - Building
C172 - Sold
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 11:45 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.