VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics


Go Back   VAF Forums > Model Specific > RV-6/6A
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 09-01-2017, 12:48 PM
PVS PVS is offline
 
Join Date: Nov 2013
Location: Tampa, FL
Posts: 17
Default leading edge bolt that supports the inboard end of each fuel tank

Friend of mine is re rebuilding a damaged RV6A. He noticed that the leading edge tank support bracket has a slot allowing movement to the wing. However after removing the slosh and resealing my fuel tank I observed that my support bracket has a hole not a slot. I went to the plans cannot locate were and when this slot was to be implemented, if at all. Can anybody shed any light on this issue. Thanks
Reply With Quote
  #2  
Old 09-01-2017, 12:57 PM
brad walton brad walton is offline
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 466
Default

At some point in the last century they concluded a slot might lower th risk of ripping the inboard tank bulkhead out in an accident resulting in the wings being folded back, thus less fuel spilled and lower risk of fire.
Reply With Quote
  #3  
Old 09-01-2017, 01:03 PM
RV6_flyer's Avatar
RV6_flyer RV6_flyer is offline
 
Join Date: Jan 2005
Location: Uniontown, PA
Posts: 2,702
Default

Early RV-6(A) plans used a hole. At some point in time it changed to a SLOT.

The idea of the slot is so that the tank does not pull apart in a crash and create a large fuel leak and possible fire.
__________________
Gary A. Sobek
KVVS RV-6
Flying
3,300+ hours
Building RV-8 S/N: 80012

To most people, the sky is the limit.
To those who love aviation, the sky is home.
Reply With Quote
  #4  
Old 09-01-2017, 02:01 PM
rv7charlie rv7charlie is offline
 
Join Date: May 2006
Location: Pocahontas MS
Posts: 2,156
Default

I'm pretty sure there's a service bulletin out there to add the slot. Even if there's not, it's pretty straightforward to cut the slot. I've done my -4's tanks.
Reply With Quote
  #5  
Old 09-01-2017, 02:07 PM
az_gila's Avatar
az_gila az_gila is offline
 
Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 8,681
Smile

Drawing #46 was modified on 3/98 to show the slot.

I can send you the snippet of the drawing if you want.
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
Reply With Quote
  #6  
Old 09-01-2017, 02:07 PM
AlexPeterson's Avatar
AlexPeterson AlexPeterson is offline
 
Join Date: Sep 2005
Location: Maple Grove, MN
Posts: 1,975
Default Design change

I believe the plans changed somewhere in the mid 90's. I made mine with a slot in about 1994 before the plans changed, and discussed the idea with someone at Van's. Not sure if Van's got the idea from me or elsewhere.

As a side note, I've had the left tank off twice over the years. There is always the question, on a joint like this, as to how tight the bolt should be. When I had it off recently, I noticed some fretting in the joint after 1600 hours, but nothing to worry about yet. The vertical motion allowed by the slot in mine might be .005-.010".

The point here is that it might be something to inspect from time to time.
__________________
Alex Peterson
RV6A N66AP 1500+ hours
Maple Grove, MN
Reply With Quote
  #7  
Old 09-01-2017, 05:11 PM
flion's Avatar
flion flion is offline
 
Join Date: Dec 2007
Location: Flagstaff, AZ
Posts: 2,435
Default

Quote:
Originally Posted by rv7charlie View Post
I'm pretty sure there's a service bulletin out there to add the slot. Even if there's not, it's pretty straightforward to cut the slot. I've done my -4's tanks.
No service bulletin, just a plans change.
__________________
Patrick Kelley - Flagstaff, AZ
RV-6A N156PK - Flying too much to paint
RV-10 14MX(reserved) - Fuselage on gear
http://www.mykitlog.com/flion/
EAA Technical Counselor #5357
Reply With Quote
  #8  
Old 09-02-2017, 04:18 AM
PVS PVS is offline
 
Join Date: Nov 2013
Location: Tampa, FL
Posts: 17
Default Thanks

To all of you that responded a heartfelt thank you. Your info has been extremely helpful. Again my thanks
Reply With Quote
  #9  
Old 09-02-2017, 04:20 AM
PVS PVS is offline
 
Join Date: Nov 2013
Location: Tampa, FL
Posts: 17
Default

Quote:
Originally Posted by az_gila View Post
Drawing #46 was modified on 3/98 to show the slot.

I can send you the snippet of the drawing if you want.
If that would not be to much trouble would like to have it. Thank you
Reply With Quote
  #10  
Old 09-02-2017, 11:55 AM
az_gila's Avatar
az_gila az_gila is offline
 
Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 8,681
Smile

Quote:
Originally Posted by PVS View Post
If that would not be to much trouble would like to have it. Thank you
No problem, but you have to send me your email first...
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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 08:40 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.