Matronics Email Lists Forum Index Matronics Email Lists
BBS Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Mounting the control stick-advice on the nut and bolts

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Pietenpol-List
View previous topic :: View next topic  
Author Message
bickers.ken(at)gmail.com
Guest





PostPosted: Sun Sep 09, 2018 5:29 pm    Post subject: Mounting the control stick-advice on the nut and bolts Reply with quote

Yes, Mark!

As for the other part of your question about cotter pins, there's a simple way to think about what nuts to use.  When trying to decide what nut to use, consider motion and heat.  If the nut is attaching any part of a structure that can rotate, you will need to use a castle nut with a corresponding cotter pin.  If the structure cannot rotate, use a stop nut.  If the structure is aft of the firewall (and therefore not subject to the possibility of high temperatures), you can use a nylon stop nut.  If it forward of the firewall (and thus subject to even the possibility of high heat), use an all-metal stop nut.  
One additional consideration, still relating to motion, is that if the bolt can only be stressed in sheer (and in no way will ever see tension), you can use a low profile stop nut -- again, a nylon version of the stop nut if aft of the firewall and all-metal if forward of the firewall.  
Cheers, Ken 
On Sun, Sep 9, 2018 at 7:04 PM, Mark Roberts <mark.rbrts1(at)gmail.com (mark.rbrts1(at)gmail.com)> wrote:
Quote:
--> Pietenpol-List message posted by: "Mark Roberts" <mark.rbrts1(at)gmail.com (mark.rbrts1(at)gmail.com)>

So THAT’S what that bag of fender washer I bought are for!

Thanks Ken. Just what I needed.

Mark




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=483053#483053






====================================
br> enpol-List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List
====================================
FORUMS -
eferrer" target="_blank">http://forums.matronics.com
====================================
WIKI -
errer" target="_blank">http://wiki.matronics.com
====================================
b Site -
          -Matt Dralle, List Admin.
rel="noreferrer" target="_blank">http://www.matronics.com/contribution
====================================





- The Matronics Pietenpol-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Pietenpol-List
Back to top
Mark Roberts



Joined: 06 Mar 2012
Posts: 265

PostPosted: Sun Sep 09, 2018 6:08 pm    Post subject: Mounting the control stick-advice on the nut and bolts Reply with quote

Much appreciated Ken.

I need to fish out the Bingalis books from storage as I am sure my answers
are there, but that might take as long to locate as it will to build the
Piet!

That was very helpful. I do have all of the necessary hardware and have
test fit everything (without actually using the lock nuts- I didn’t want to
put them on then take them off a ruining the “locking” potentially when I
put them back on), before the project went into a 6 year hibernation.

Now, if o could just jumpstart my memory cells...

Mark

On Sun, Sep 9, 2018 at 8:31 PM Ken Bickers <bickers.ken(at)gmail.com> wrote:

[quote] Yes, Mark!

As for the other part of your question about cotter pins, there's a simple
way to think about what nuts to use. When trying to decide what nut to
use, consider motion and heat. If the nut is attaching any part of a
structure that can rotate, you will need to use a castle nut with a
corresponding cotter pin. If the structure cannot rotate, use a stop nut


- The Matronics Pietenpol-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Pietenpol-List
Back to top
View user's profile Send private message
boyerjrb(at)comcast.net
Guest





PostPosted: Sun Sep 09, 2018 6:38 pm    Post subject: Mounting the control stick-advice on the nut and bolts Reply with quote

Hi Mark, Use wood washers on the bolts through the wood. They are much larger than the standard small washer used on bolts through metal. Look in the Aircraft Spruce catalog, I think they are AN-960 but check their catalog. If you use cotter keys you can put them in bolt head down, or use bolt head up and use self locking nuts or castle nuts with cotter keys. Jim B
Quote:
On September 9, 2018 at 5:27 PM Mark Roberts <mark.rbrts1(at)gmail.com> wrote:




I have the appropriate Aircraft Spruce ordered AN bolts and nuts, etc.

1. What I am wondering is about the way to assemble them. Do I mount them nut side up through the floor, or bolt head inside- nut side down... I am using lock nuts, and where called out, the cotter pin style (I am going from memory as I have yet to refer back to the plans since restarting the build- but will before installing).

2. Is a washer enough to keep the lower part of the assembly from digging in and crushing the bottom of the plywood on the underneath side, or should I weld either the nuts or heads to a plate so they are tied together somehow.

I am thinking that once I put the fabric on, the heads or nuts will not be accessible without cutting and repairing the fabric, so what’s best? I don’t believe these were called out to be cotter pinned in.

I have the EAA Books, but don’t remember if this was addressed.

Thanks for the help.

Mark




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=483050#483050











- The Matronics Pietenpol-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Pietenpol-List
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Pietenpol-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group