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 

Pietenpol-List: Turnbuckles ain’t cheap

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





PostPosted: Sun Jun 03, 2018 8:21 am    Post subject: Pietenpol-List: Turnbuckles ain’t cheap Reply with quote

I too like the idea but wonder if the cable tensions change as the wood dries. I can say I torqued the AN bolts on my wing after a couple years of hanging in the rafters, every one needed tightening. Tom K, it appears Dan has one of the wide crimpers, which I’ve looked to buy but not found them.

Jack Textor

Sent from my iPad

Quote:
On Jun 2, 2018, at 1:10 PM, danoliver <danoliver909(at)gmail.com> wrote:



The subject of turnbuckles and their cost is not new to this site. But I’m gonna bring it up once again. I think I found a way to eliminate the turnbuckles on the drag and antidrag wires in the wings. If you look at the pictures of my experiment below you can see that I simpy doubled up the cable and crimped the ends at locations B and C. I tightened the turnbuckle and then crimped the sleeves at A and D. After that I just cut out the turnbuckle to be used someplace else. My question is to you all out there flying your Air Campers. Will these cables need to be retightened over time or is it a set it and forget it kinda thing?

--------
Dan O




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=480583#480583




Attachments:

http://forums.matronics.com//files/dd4e5012_b2aa_4436_85b0_3bcb4314baa3_440.jpeg
http://forums.matronics.com//files/9eb24606_e6e8_4856_8161_916493de9b66_150.jpeg








- 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
taildrags



Joined: 29 Dec 2009
Posts: 1607
Location: Medford, OR

PostPosted: Sun Jun 03, 2018 8:02 pm    Post subject: Re: Pietenpol-List: Turnbuckles ain’t cheap Reply with quote

Jack; by "wide crimpers", what are you referring to? The conventional nicopress tool makes three crimps close to each other in the single ferrule, all in one pass. The hardware store crimper, as well as the hand-operated crimper that Aircraft Spruce and others sell and that makes the crimp by the use of a crescent wrench, box- or open-end wrench (ratcheting or not) turning a pair of bolts that tighten down the crimping mandrels onto the ferrule, makes a single wide crimp on the ferrule. All of the nicopressed cable connections on my airplane are made with the conventional triple-crimp except for the ones that I made on the tail brace wires when I replaced the galvanized cables with stainless. I didn't have the big cable-cutter looking tool to make the triple crimp so I use the hand tool which makes just one wide crimp on the cables.

- 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

_________________
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power, 72x36 Culver prop
Back to top
View user's profile Send private message Send e-mail Visit poster's website
jack(at)textors.com
Guest





PostPosted: Mon Jun 04, 2018 3:04 am    Post subject: Pietenpol-List: Turnbuckles ain’t cheap Reply with quote

Oscar you say it so much more eloquently than I! 😀

Jack Textor

Sent from my iPad

Quote:
On Jun 3, 2018, at 11:02 PM, taildrags <taildrags(at)hotmail.com> wrote:



Jack; by "wide crimpers", what are you referring to? The conventional nicopress tool makes three crimps close to each other in the single ferrule, all in one pass. The hardware store crimper, as well as the hand-operated crimper that Aircraft Spruce and others sell and that makes the crimp by the use of a crescent wrench, box- or open-end wrench (ratcheting or not) turning a pair of bolts that tighten down the crimping mandrels onto the ferrule, makes a single wide crimp on the ferrule. All of the nicopressed cable connections on my airplane are made with the conventional triple-crimp except for the ones that I made on the tail brace wires when I replaced the galvanized cables with stainless. I didn't have the big cable-cutter looking tool to make the triple crimp so I use the hand tool which makes just one wide crimp on the cables.

--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC &quot;Scout&quot;
A75 power, 72x36 Culver prop




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=480617#480617











- 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
danoliver



Joined: 01 Mar 2016
Posts: 12
Location: Cincinnati

PostPosted: Mon Jun 04, 2018 12:40 pm    Post subject: Re: Pietenpol-List: Turnbuckles ain’t cheap Reply with quote

Thanks everyone for your input. I guess I'm going to go for it. Suppose I'll let everyone know how it turns out in a few years. I will be storing the wings uncovered for a while as I build the fuselage. Maybe that'll give me a bit of a preview of how things are going to shrink or stretch. I can always add the turnbuckles before covering if it looks like things are sagging. A chance to save over $200 is worth a try. By the way my crimper is the one from AS&S for $20.

- 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



IMG_3515.jpg
 Description:
 Filesize:  599.1 KB
 Viewed:  701 Time(s)

IMG_3515.jpg



_________________
Dan O
Back to top
View user's profile Send private message Send e-mail
jack(at)textors.com
Guest





PostPosted: Mon Jun 04, 2018 1:22 pm    Post subject: Pietenpol-List: Turnbuckles ain’t cheap Reply with quote

Dan I tried a crimper like you use and the threads stripped after a couple of crimps. I like the looks of the single crimp.

Jack Textor

Sent from my iPad

Quote:
On Jun 4, 2018, at 3:40 PM, danoliver <danoliver909(at)gmail.com> wrote:



Thanks everyone for your input. I guess I'm going to go for it. Suppose I'll let everyone know how it turns out in a few years. I will be storing the wings uncovered for a while as I build the fuselage. Maybe that'll give me a bit of a preview of how things are going to shrink or stretch. I can always add the turnbuckles before covering if it looks like things are sagging. A chance to save over $200 is worth a try. By the way my crimper is the one from AS&S for $20.

--------
Dan O




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=480641#480641




Attachments:

http://forums.matronics.com//files/img_3515_143.jpg








- 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
danoliver



Joined: 01 Mar 2016
Posts: 12
Location: Cincinnati

PostPosted: Wed Aug 22, 2018 2:19 pm    Post subject: Re: Pietenpol-List: Turnbuckles ain’t cheap Reply with quote

Well gang here it is! Port wing is built and strung. I used 3/32”x7 cables drawn twang tight (no turnbuckles, Clotilde). It weren’t easy. Asides from the usual adjusting and tweaking, triangulating, squaring and creaking, I also had to modify my crimper to get into some petty tight spots. Just to set a hemline, once everything was crimped and cut I set a five pound weight where the cables cross and measured the sag. 7/16”. Suppose only time will show the folly or wisdom of my choice here. I know it’s not per the plans but I hope it’s per the spirit. I’ll try and report back in a year or so.

- 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



IMG_3769 (1).jpg
 Description:
 Filesize:  132.56 KB
 Viewed:  303 Time(s)

IMG_3769 (1).jpg



IMG_3770 (1).jpg
 Description:
 Filesize:  91.44 KB
 Viewed:  303 Time(s)

IMG_3770 (1).jpg



IMG_3772 (1).jpg
 Description:
 Filesize:  108 KB
 Viewed:  303 Time(s)

IMG_3772 (1).jpg



IMG_3771 (1).jpg
 Description:
 Filesize:  111.03 KB
 Viewed:  303 Time(s)

IMG_3771 (1).jpg



IMG_3697 (2).jpg
 Description:
 Filesize:  137.25 KB
 Viewed:  303 Time(s)

IMG_3697 (2).jpg



_________________
Dan O
Back to top
View user's profile Send private message Send e-mail
taildrags



Joined: 29 Dec 2009
Posts: 1607
Location: Medford, OR

PostPosted: Wed Aug 22, 2018 8:10 pm    Post subject: Re: Pietenpol-List: Turnbuckles ain’t cheap Reply with quote

Well Dan, the plans call for the wing drag/anti-drag wires to be 13 ga. hard wire, but who knows what the strength of that wire was, back in 1932? Your 3/32" stranded cable is just about the same diameter as 13 gauge, if the table I looked at is correct. Both 7x7 and 7x19, 3/32" galvanized aircraft cable are about 1000 lbs in breaking strength. My guess is that your wing will be as good as most and probably better than some.

- 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

_________________
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power, 72x36 Culver prop
Back to top
View user's profile Send private message Send e-mail Visit poster's website
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