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 > Model Specific > RV-7/7A
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 12-13-2009, 10:32 PM
SHORTRV7 SHORTRV7 is offline
 
Join Date: Jan 2006
Location: Haskell, Oklahoma
Posts: 186
Default Elevator balance separate or together

Paint complete on Elevators. How would be the best way to balance the elevators, one at a time or conected together? Or even conected together with the control stick hooked up????
Thanks,
__________________
Don Short
RV-7 N-1948P Flying Since 4/2010
Superior XP IO-360
RV-10 Flying since 4/15/22
Barrett IO-540 CAS
Donation Paid
Reply With Quote
  #2  
Old 12-14-2009, 05:32 AM
Kevin Horton's Avatar
Kevin Horton Kevin Horton is offline
 
Join Date: Jan 2005
Location: Green Bay, WI, USA
Posts: 2,369
Default

Quote:
Originally Posted by SHORTRV7 View Post
Paint complete on Elevators. How would be the best way to balance the elevators, one at a time or conected together? Or even conected together with the control stick hooked up????
Thanks,
It depends on your definition of "best". If by "best", you mean which balancing process gives the highest airspeed at which flutter would occur, then you should balance the elevators one at a time.

But, most builders balance them as a unit, connected together, and the service history clearly shows that this is completely adequate as long as you respect Van's VNE numbers. If you ever have an inadvertent high airspeed event, balancing the elevators one at a time will give you a bit more flutter margin.
__________________
Kevin Horton
RV-8 (Sold)
Green Bay, WI, USA
http://www.kilohotel.com/rv8/
Reply With Quote
  #3  
Old 12-14-2009, 11:18 AM
Bavafa Bavafa is offline
 
Join Date: Oct 2007
Location: Sacramento, CA
Posts: 4,509
Default

Each individually and definitely not connected to the push rod.
__________________
Mehrdad
N825SM RV7A - IO360M1B - SOLD
N825MS RV14A - IO390 - SOLD
N258SM RV14A - IO390EXP119 - Out of Paint shop & flying
Dues paid
Reply With Quote
  #4  
Old 05-12-2023, 09:45 AM
DeltaTango42 DeltaTango42 is offline
 
Join Date: Jan 2016
Location: Bath, Ohio
Posts: 4
Default

Quote:
Originally Posted by Bavafa View Post
Each individually and definitely not connected to the push rod.
I know this is an old thread, but I have a similar question. I balanced the elevators of my RV9A without any controls attached - pretty well, I think. But when I hook up the elevator pushrod, the system consistently drifts a bit to the "up elevator" orientation. Is this OK ?
Reply With Quote
  #5  
Old 05-12-2023, 10:27 AM
Tommy123 Tommy123 is offline
 
Join Date: Jul 2018
Location: Naples fl
Posts: 494
Default

If it balances without the pushrod connected you are good. You balance the control surface, not the system.
Reply With Quote
  #6  
Old 05-13-2023, 01:01 PM
motodave motodave is offline
 
Join Date: Dec 2018
Location: Littleton, CO
Posts: 156
Default

Quote:
Originally Posted by DeltaTango42 View Post
But when I hook up the elevator pushrod, the system consistently drifts a bit to the "up elevator" orientation. Is this OK ?
Mine does the same in the hangar... For me the left was heavy and the right was light but when linked together they balanced nicely. I asked Van's about this and they want each to balance separately so I adjusted mine.
__________________
Dave
RV7 Slider N732DH Flying!
YIO-360-EXP Thunderbolt
Garmin G3X panel w/VPX
Littleton, CO & KCFO (aka CO Air and Space Port)
Photo log: https://flic.kr/ps/9jjZz
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 12:16 AM.


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.