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View Full Version : Purpose/necessity of continuous rib stitch cord?



Dan2+2
11-17-2009, 03:10 PM
I am ribstitching my 2+2 wings now and have yet to quite understand why I need to stitch with one LONG piece of cord. Why not individual stitch's. What is the structural purpose of one cord?

mike mcs repair
11-17-2009, 03:56 PM
its faster.... thats all.... and its the right way...

you could do singles and locks if you are a brute for punishment....

jgerard
11-17-2009, 04:27 PM
I use 2 pieces, start at the outboard ends, and work my way to the center. No difference to me if the wing is on sawhorses or in a rotisserie. I'll work the LE side first, then come around and work the TE side. It sure goes a lot faster when you're not trying to pull 16' of string through the wing. I also use the "Beech knot"

Jason

Dan2+2
11-17-2009, 10:11 PM
I thought faster was one of the reasons. But it is frustrating to keep from tangling that long cord. :)

NimpoCub
11-17-2009, 11:51 PM
I'm with Dan. With the little bit of stitching I did on my tailfeathers, I wound up doing square knots & locking with half hitches, and pulled 'em through. I found that Ray's running knots sometimes locked before they got tight, which got me tight. Wings may be different, will see this winter. :)

mike mcs repair
11-18-2009, 01:23 AM
if the knots are locking before tight you are doing them wrong...period...

pay attention to the drawings as far as working from top to bottom or vise versa..

also do every other rib... then come back and do the other half set....

when you actually follow the directions it goes quick.....

Fortysix12
11-18-2009, 07:17 AM
If don' have Polyfiber's video get it. Set up a TV beyond the wing with TV remote one hand and the needle and thread in the other. You will be an expert in no time. My good friend Bob had absolutely no experience stitching wings and did both of mine with the help of the video. Thanks again Bob.

Steve Pierce
11-18-2009, 07:23 AM
EAA has great videos of rib stitching on their website. http://www.eaa.org/video/homebuilders.html

Longwinglover
11-18-2009, 09:07 AM
Clyde Smith, Jr. came through last spring and rib stitched two J3 wings for a friend. Everything was set up and all he had to do was stitch. He used a continuous stitch but did not run the cord under the fabric between stitches. Flat rib stitch cord lays nicely beside the reinforcement tape.

He single handedly stitched the two wings in 7:42.

John Scott

NimpoCub
11-19-2009, 01:12 AM
Sorry Mike, & I knew I was doing something wrong.
I thought it was my tightening technique. I'm sure I followed the video just right, but... :)
For sure I'll haft'a "relearn" after so many sleeps since last time. :) I'll go see the EAA vid. too. Thanks.

I think I'll be happy to get ONE wing done in 7:42.

pittsdriver
11-19-2009, 10:04 AM
Once you get the knot down and a system going rib stitching goes very fast. I got it down to 15 min a rib using the Stitts hidden knot. Don