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.


Go Back   VAF Forums > Model Specific > RV-8/8A
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 03-03-2014, 10:15 AM
walkman's Avatar
walkman walkman is offline
 
Join Date: Oct 2011
Location: Atlanta
Posts: 893
Default Loose nut in the cockpit! Help me identify

Yesterday after flying, including some mild acro, I found this loose nut lying on the floor in the cockpit. Operationally everything checks out, heck I made it home. However I'm a little worried and I'd like to figure out where it came from. Its possible it could have been rattling around for years, as I've done the only inverted flight this airplane has seen in 7 years and I've been rained on by gravel, wire tie ends, pens, and various other detritus that builds up over the years.

Does anyone recognize where this might have come from?

Thanks

https://www.dropbox.com/s/kmcr3ylure...2012.17.38.jpg
__________________
RV-8 IO-360 (Bought)
RV-6 O-360 C/S (Sold)
Walkman aka Flame Out
Reply With Quote
  #2  
Old 03-03-2014, 10:27 AM
Paul K Paul K is offline
 
Join Date: Mar 2009
Location: Grand Rapids, MI
Posts: 1,019
Default

If your photo is close to being in scale, looks like a 1/2 inch galv thin nut. Honestly, I don't think my 7a has anything like that in the cockpit! I don't know if there is any 1/2 inch hardware on the entire plane.

With that being said, I would spend some time going over the plans looking for anything like this. Again, verify the size and start with the plans. Engines have some larger hardware, just not galvinized. Case bolts, cylinder bolts, etc.

Good luck.
__________________
Paul K
West Michigan

Unfortunately in science, what you believe is irrelevant.

2021 donation made, exempt but worth every dime!
Reply With Quote
  #3  
Old 03-03-2014, 10:31 AM
Sid Lambert Sid Lambert is offline
 
Join Date: Jul 2005
Location: North Atlanta
Posts: 1,120
Default

Some kind of jam nut for a heavy electrical terminal?
__________________
Sid Lambert

RV-7 Sold
RV-4 - Flying - O-320 Fixed Pitch - Red over Yellow

Reply With Quote
  #4  
Old 03-03-2014, 10:48 AM
mikeflys8's Avatar
mikeflys8 mikeflys8 is offline
 
Join Date: Dec 2005
Location: Friendswood TX
Posts: 81
Default Loose Nut

Looks Like the Jam nut from the end of a control cable....throttler, mixture, prop....?
Reply With Quote
  #5  
Old 03-03-2014, 10:50 AM
ppilotmike's Avatar
ppilotmike ppilotmike is offline
 
Join Date: Jan 2010
Location: Denver, CO
Posts: 2,013
Default

I thought all cockpits contained at least one "loose nut!"
__________________
Mike Rettig
EAA Chapter 301 www.eaa301.org
VAF Dues Current
RV-10 - Working on engine / prop installation
http://www.mykitlog.com/users/index....ig&project=803
F-14 (Pedal Plane - Daughter's Project) "Flying"
https://www.youtube.com/watch?v=zKCyX2FXrlw
Reply With Quote
  #6  
Old 03-03-2014, 10:50 AM
Geico266's Avatar
Geico266 Geico266 is offline
 
Join Date: Feb 2005
Location: Huskerland, USA
Posts: 5,864
Default

Quote:
Originally Posted by mikeflys8 View Post
Looks Like the Jam nut from the end of a control cable....throttler, mixture, prop....?
Don't think those would be flying around even if they came loose. I guess he could have dropped one during construction.
__________________
RV-7 : In the hangar
RV-10 : In the hangar
RV-12 : Built and sold
RV-44 : 4 place helicopter on order.
Reply With Quote
  #7  
Old 03-03-2014, 10:51 AM
Geico266's Avatar
Geico266 Geico266 is offline
 
Join Date: Feb 2005
Location: Huskerland, USA
Posts: 5,864
Default

Quote:
Originally Posted by ppilotmike View Post
I thought all cockpits contained at least one "loose nut!"
Only in flight.
__________________
RV-7 : In the hangar
RV-10 : In the hangar
RV-12 : Built and sold
RV-44 : 4 place helicopter on order.
Reply With Quote
  #8  
Old 03-03-2014, 11:08 AM
walkman's Avatar
walkman walkman is offline
 
Join Date: Oct 2011
Location: Atlanta
Posts: 893
Default

Quote:
Originally Posted by Paul K View Post
If your photo is close to being in scale, looks like a 1/2 inch galv thin nut. Honestly, I don't think my 7a has anything like that in the cockpit! I don't know if there is any 1/2 inch hardware on the entire plane.

With that being said, I would spend some time going over the plans looking for anything like this. Again, verify the size and start with the plans. Engines have some larger hardware, just not galvinized. Case bolts, cylinder bolts, etc.

Good luck.
Unfortunately I don't have the plans for this airplane.

It doesn't look like standard aircraft hardware to me.

The prior owner was a builder/construction guy.....so perhaps it migrated into the airplane from somewhere else, a job site or something.
__________________
RV-8 IO-360 (Bought)
RV-6 O-360 C/S (Sold)
Walkman aka Flame Out
Reply With Quote
  #9  
Old 03-03-2014, 11:27 AM
kjlpdx kjlpdx is offline
 
Join Date: Feb 2014
Location: lake oswego, OR
Posts: 161
Default

some battery terminal hardware? maybe ground cable to firewall grd post? we used to joke about at the monthly meetings leaving odd parts in builders planes just to have them scratching their heads. maybe you were had.
__________________
RV-6A 1500+hrs since 1997
O-320 D2J, FP, slo-bld
49 states, Bahamas, Canada
2014 - PAID
Reply With Quote
  #10  
Old 03-03-2014, 11:46 AM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 6,315
Default

I can not tell what size it is, but it appears to be a fine thread. You could help by giving the thread pitch and wrench or bolt size more precisely.

Like others maybe a solenoid jamb nut.

I got some hardware store nuts for all my assembly checks where a castle or fiber locking nut was used. I drop them all the time, but have tried to keep the inside cleaned regularly, but it could have jumped in a crevice and just finally rattled out. There are some of those places on the forward fuse floor on a 7.

Actually can not think of a cockpit item that size, but the way I work the forward skin is not on until the end and I sit a cut down box up there with stuff in it as a working area.

Good luck, maybe time for a good inspection, never know what you will find.
__________________
Bill

RV-7
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 05:32 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.