VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics

  #1  
Old 10-12-2019, 06:29 AM
RV3Kev RV3Kev is offline
 
Join Date: Sep 2017
Location: Traralgon Australia
Posts: 28
Default RV3 Bottom Skins

Finally started on the bottom skins today. I found the problem with the inboard skins being too short. I was kind of expecting this based on reading a number of build sites.

Sketch 9 shows the overall length of the skin to be 48”. When I add up all the other dimensions on this drawing, the over length should be 48 1/8 ”. When I do the same calculation based on the rib stations, I get 48 1/8”.

Finally when putting the skin up against the skeleton, it looks to be 1/8” too short.

The outer skins is correct at 48” but is supplied at 49”. I assume this is to allow an overlap joint as done on the QB wings?

Any one got a rivet pattern for the overlap joint? Ie two rows of rivets at what pitch

I may decide to buy some new material and make a new inboard skin. It may be possible to get the 1/4 edge distance but there almost no margin for errors.

Last edited by RV3Kev : 10-12-2019 at 06:51 AM.
Reply With Quote
  #2  
Old 10-12-2019, 06:56 AM
Rv3Dave Rv3Dave is offline
 
Join Date: Jul 2016
Location: Florida
Posts: 39
Default

On mine, the inboard rib flange was wider than it had to be. I shifted the skin outboard close to 1/8 and trimmed the flange to match the skin. The rivet spacing I used on the overlap joint was 1 between rivet rows and 1 1/4 along the cord.
Reply With Quote
  #3  
Old 10-12-2019, 07:11 AM
RV3Kev RV3Kev is offline
 
Join Date: Sep 2017
Location: Traralgon Australia
Posts: 28
Default

Dear Dave

Thanks for the information. Are the rivets offset between the two rows.?

On my wing, the innermost flange is wider, and it stick out a little past the spar flange, so it could be trimmed if required.
Reply With Quote
  #4  
Old 10-12-2019, 01:14 PM
Rv3Dave Rv3Dave is offline
 
Join Date: Jul 2016
Location: Florida
Posts: 39
Default

No, not offset
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 06:06 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.