VansAirForceForums  
Home > VansAirForceForums

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

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

  #1  
Old 12-19-2012, 06:57 AM
Bayou Bert's Avatar
Bayou Bert Bayou Bert is offline
 
Join Date: Sep 2012
Location: Prairieville, LA
Posts: 223
Default Info Needed re closing lightening holes

I have searched every combination I can think of and can not find
the threads on
Closing off the lightening holes on each end of 9A HS.
Please point me where I need to go.

Bert
Reply With Quote
  #2  
Old 12-19-2012, 07:12 AM
Wayne Gillispie Wayne Gillispie is offline
 
Join Date: Apr 2009
Location: USA
Posts: 1,499
Default I would recommend not doing it

Advantage: Cosmetics and 1-2 kts.

Disadvantage: Control jam/ntsb report, difficult to inspect, less air circulation in case water gets inside, it is not a plastic airplane and more weight/time/money.
__________________
Good judgment comes from experience, and a lot of that comes from bad judgment.
Reply With Quote
  #3  
Old 12-19-2012, 09:40 AM
bruceh's Avatar
bruceh bruceh is offline
 
Join Date: Mar 2008
Location: Ramona, CA
Posts: 2,509
Default

Here is how I did this.

I cut some of the extra aluminum in the trim bundle into some small circles just small enough to fit inside the lightening holes of the rear HS spar. I used one of those magnet on a stick tools and a large fender washer on the other side of the aluminum circle to be able to hold on to these and position them in place after I put a bead of proseal on the edge of the circles. Once they were positioned in place and held by the proseal I put some masking tape on there to keep them from sagging while the proseal cures.


Since the filler circles are larger than the lightening holes, there is no way for these to exit toward the control surfaces and jam. Easy and very lightweight. The hardest part is cutting out the circles.
__________________
Bruce Hill
RV-9A N5771H flown over 900 hours!
http://www.overthehills.com/RV-9A-Project
APRS Tracking for KJ6YRP and Flying Over the Hills Blog
2021 VAF donator
EAA Tech Counselor, Pre Buys, Build assistance - canopy/tanks/fiberglass/electrical/repairs
Reply With Quote
  #4  
Old 12-19-2012, 10:26 AM
BillC BillC is offline
 
Join Date: Mar 2005
Location: Ramona, Ca
Posts: 260
Default

Bert,
Just another thought. I used 2" aluminum tape to cover the holes. Light weight, sticks very well (installed 2007) no signs of coming off and removable if necessary. Keeps the critters out.

YMMV
Bill
__________________
Bill RV-9A Flying
FFI- Flight Lead
N99WC
Ramona, CA (KRNM)
Reply With Quote
  #5  
Old 12-19-2012, 03:32 PM
Bayou Bert's Avatar
Bayou Bert Bayou Bert is offline
 
Join Date: Sep 2012
Location: Prairieville, LA
Posts: 223
Default Thanks

Thanks Bill, Bruce....critters is what I was thinking of...we have plenty
here is south Louisiana.
I have seen some folks put their seatbelts on the stick to hold the
elevators up....holes wide open. Down here outside, you would have
birds or bats in the HS.
Bill..the silver tape...brand? number style? greatly appreciated.

Thanks much
Bert
Reply With Quote
  #6  
Old 12-19-2012, 03:37 PM
Wayne Gillispie Wayne Gillispie is offline
 
Join Date: Apr 2009
Location: USA
Posts: 1,499
Default

They will really like going up your cowl outlet then.
__________________
Good judgment comes from experience, and a lot of that comes from bad judgment.
Reply With Quote
  #7  
Old 12-19-2012, 05:10 PM
Dbro172's Avatar
Dbro172 Dbro172 is offline
 
Join Date: Apr 2012
Location: West Fargo, ND
Posts: 1,076
Default Tape

Quote:
Originally Posted by BillC View Post
Bert,
Just another thought. I used 2" aluminum tape to cover the holes. Light weight, sticks very well (installed 2007) no signs of coming off and removable if necessary. Keeps the critters out.

YMMV
Bill
I noticed the Cessna 162 uses tape at this location as well. Not sure what type because it looked to be painted in place and an exact color match. Barely noticeable from a foot away!
__________________
Derek Hoeschen
EAA Tech Counselor
RV-9A #92103 - N803DK
G3X, Superior XO-320, Dual Pmags, Catto 3B
www.mykitlog.com/dbro172/

1974 Bellanca Super Viking - N16AW - Flying
RV-8 #83565 - N184DK - building
1968 Mooney M20C - N6801N - Sold
1956 C-182 - N744W - Sold
Reply With Quote
  #8  
Old 12-20-2012, 10:44 AM
flyboy1963's Avatar
flyboy1963 flyboy1963 is offline
 
Join Date: Oct 2008
Location: Lake Country, B.C. Canada
Posts: 2,434
Default I like the proseal idea......Plus.....

how about glueing in some wire mesh?
critters out, air in to ensure things are dry inside.
I mention this because at annual, I noticed inside the rear of the fuselage, there were tell-tale runs where moist air inside condensed on the cool skin, then ran down the sides, hanging up on the longeron etc.
Much better to have the wind blow thru here a bit and keep the moisture level to a minimum.

...that...or move to Arizona or something???
__________________
Perry Y.
RV-9a - SOLD!....
Lake Country, BC
Reply With Quote
  #9  
Old 12-20-2012, 11:07 AM
flyinga flyinga is offline
 
Join Date: Dec 2007
Location: Fredericksburg, TX
Posts: 667
Default

Get some lightweight fabric used for covering rag-wing aircraft and the appropriate "dope" from ACS. Cut the cloth circles about 3/8 inch radius larger than the hole. Does a great job, is paintable and weights almost nothing. If you know of anyone that works on fabric covered aircraft they will probably have enough scrap and dope to get the job done.
__________________
Jim Averett
RV-8
TS36 - Silver Wings
Fredericksburg, TX
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 03:00 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.