VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics


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
  #11  
Old 03-29-2017, 10:50 AM
jmjula's Avatar
jmjula jmjula is offline
 
Join Date: Oct 2005
Location: Portland, OR
Posts: 168
Default

I had asked Van's what to do and was told it doesn't hurt anything to leave them full weight until painted, then drill holes to balance, if you want to. Extra weight doesn't hurt, too little weight very well could. I just finished the painting and can trim a little from the right side when I feel like doing so and touching up the paint to cover the removal hole(s).
__________________
James Jula - CFI/II/MEI - N713JL RV-7A First Flight 10/12/15 - "What is chiefly needed is skill rather than machinery." Wilbur Wright, 1902

Last edited by jmjula : 03-29-2017 at 10:52 AM.
Reply With Quote
  #12  
Old 03-29-2017, 10:55 AM
Reformed SeaSnake Reformed SeaSnake is offline
 
Join Date: Nov 2016
Location: Beaverton
Posts: 12
Default Wait

Quote:
Originally Posted by RV7ForMe View Post
hey Larry I know this thread is a few years old. but i am asking the same thing now. how did it turn out? was leaving it as is the right move?
I can't speak for Larry, but I went through the same decision finishing my 8A empennage a couple years ago. I elected to wait until final paint. It's easier to trim/drill out than add back and paint can add quite a bit of weight to those elevators.

Also, if you are planning (like me) to fly the plane for awhile before painting it, there is no harm in having control surfaces that are a bit over-balanced.
__________________
Jason Rood
Beaverton Oregon | RV-8A, Very slow QB
No Pithy quote here; just the sincere hope that your day ends better then it began
Reply With Quote
  #13  
Old 03-29-2017, 04:05 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 2,565
Default Weight

Quote:
Originally Posted by RV7ForMe View Post
hey Larry I know this thread is a few years old. but i am asking the same thing now. how did it turn out? was leaving it as is the right move?
I'm not flying yet but have had the tail together and right was just about balanced. Left will need a tad due to the trim but she's not finished yet. I plan vinyl wrap. I will add nut plates to the tooling holes for weight adjustment later.
__________________
Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/01/2016. Plus a little extra.
RV-7A #73391, N511RV reserved (1,800+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
Reply With Quote
  #14  
Old 03-29-2017, 09:31 PM
Chattin35 Chattin35 is online now
 
Join Date: Jul 2014
Location: Boise, ID
Posts: 171
Default Elevator balancing

I also called Van's about this (twice actually, haha). I was paranoid because the RV-4 manual dedicates quite a bit of info to balancing the elevator. They said it wasn't that big of a deal on the -7/8. Balancing the elevator is pretty much optional, but be sure wait until everything is installed and painted if you are going to do it.

I'm still a little wary about this as flutter is one of those things you don't want to mess with. It can kill you very quickly. But, I'm taking Van's word for it right now (might call again before I fly it just for good measure).
Reply With Quote
  #15  
Old 03-30-2017, 04:17 PM
RV7ForMe RV7ForMe is offline
 
Join Date: Jul 2015
Location: Europe
Posts: 180
Default

alright thanks guys. So I will leave it uncut for now...
__________________
RV7 - Working on empennage
Cessna Rocket 210HP - Best dang 172 Ever made!
Reply With Quote
  #16  
Old 03-30-2017, 08:54 PM
efitzgerald efitzgerald is offline
 
Join Date: Jul 2016
Location: Dryden, MI
Posts: 24
Default Getting ahead of the plans

Its a good thing I took a look at this thread. I was not reading ahead and cut both weights the same as shown in the picture of the right elevator. I ended up milling them and it was easier to do them at once.

I have not finished the left elevator yet but the weight has already been match drilled. What is my best course of action at this point? Drilling another weight and getting the holes to match up will be pretty hard (lead is not fun to drill).

Thanks,

Eric


Reply With Quote
  #17  
Old 04-05-2017, 06:37 AM
efitzgerald efitzgerald is offline
 
Join Date: Jul 2016
Location: Dryden, MI
Posts: 24
Default

This is my weight for the left elevator. As you can see I cut it the same way the right side is. I have already match drilled it to the elevator, what would be the best way of fixing the mistake. I am assuming that it is going to be difficult to drill a new one and gets the holes to line up perfectly with the rib on the inside.

I was considering using some aluminum sheet metal to create a "mold" so I can heat that end up enough to melt it and add more lead to bring it back to its original shape.

Thanks for the suggestions in advance.

[/url]
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 07:48 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.