Original Posted By: "walter evans"
I have a question for those who have gone before. Bernie has the ribsspaced from 11" to 12.5" so spacing anywhere between those numbers wouldn'tseem to be critical from an airworthyness aspect.I have set up my spars and laid out the ribs where he says they should be.I am now installing a string where the drag wires would go to see if theycontact any ribs. They do. So, I was going to move some ribs - maybe 1/2"this way or 1/2" that way - so the wires don't rub on any rib parts.Am I painting myself into a corner that I can't see at this point? This isone part I really don't want to build twice. Little ones are too bad,but....Tedwishing he was as far along as Corky________________________________________________________________________________
Pietenpol-List: Rib spacing question
Re: Pietenpol-List: Rib spacing question
Original Posted By: "Ted Brousseau"
Ted,You know, I saw that issue when I first looked at the prints beforestarting to build, but thought it was too far down the road to worry about.I built the wing exactly to the print. ( take note of where the dimensionlines measure to [which side of the rib]). It was amazing, that whenputting in the wires, not one touched. It was said in this group along timeago, that no one realizes how much thought Bernard P. put into these prints.When in doubt, rely on the prints.waltNX140DLSOON? inspection----- Original Message -----
Ted,You know, I saw that issue when I first looked at the prints beforestarting to build, but thought it was too far down the road to worry about.I built the wing exactly to the print. ( take note of where the dimensionlines measure to [which side of the rib]). It was amazing, that whenputting in the wires, not one touched. It was said in this group along timeago, that no one realizes how much thought Bernard P. put into these prints.When in doubt, rely on the prints.waltNX140DLSOON? inspection----- Original Message -----
Re: Pietenpol-List: Rib spacing question
Original Posted By: "Ted Brousseau"
Hi TedI followed the plan exactly. The drag - anti-drag wires are sometimes closeor even touch a rib but on mine it was never a problem.Dick----- Original Message -----
Hi TedI followed the plan exactly. The drag - anti-drag wires are sometimes closeor even touch a rib but on mine it was never a problem.Dick----- Original Message -----
Re: Pietenpol-List: Rib spacing question
Original Posted By: Waytogopiet(at)aol.com
Ted,It's along time ago that I did my wings, but I don't remembermany ribs interfering with the drag/antidrag wires. Perhapsa couple on each wing where I moved the rib slightly to gainabout 1/4" clearance---as you were planning to do. I could look at photos and find which ribs needed slight shifting, butyour wings could be different from mine.I would suggest that you assemble the ribs on the spars with-out fastening them in place. Tighten the drag truss wires and trammel the wings. Then check your rib-to-drag wire situationwith the ribs in their proper location. If you have to move a rib slightly, don't worry about it. Someeven cut out a small section of rib diagonal and glue a piece of rib stock to it to restore continuity and strength in that mem-ber. This generally allows the rib to be placed in the position shown in the plans, or very close to it.Graham ________________________________________________________________________________
Ted,It's along time ago that I did my wings, but I don't remembermany ribs interfering with the drag/antidrag wires. Perhapsa couple on each wing where I moved the rib slightly to gainabout 1/4" clearance---as you were planning to do. I could look at photos and find which ribs needed slight shifting, butyour wings could be different from mine.I would suggest that you assemble the ribs on the spars with-out fastening them in place. Tighten the drag truss wires and trammel the wings. Then check your rib-to-drag wire situationwith the ribs in their proper location. If you have to move a rib slightly, don't worry about it. Someeven cut out a small section of rib diagonal and glue a piece of rib stock to it to restore continuity and strength in that mem-ber. This generally allows the rib to be placed in the position shown in the plans, or very close to it.Graham ________________________________________________________________________________
Re: Pietenpol-List: Rib spacing question
Original Posted By: "Jack Phillips"
Subject: Re: Pietenpol-List: Rib spacing questionTed...I moved mine just enough to clear those that were interfering. Caused no problems and is virtually unnoticeable after cover and paint. Don________________________________________________________________________________
Subject: Re: Pietenpol-List: Rib spacing questionTed...I moved mine just enough to clear those that were interfering. Caused no problems and is virtually unnoticeable after cover and paint. Don________________________________________________________________________________
RE: Pietenpol-List: Rib spacing question
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Ted,You are doing it exactly right. I followed BHP's spacing exactly and havehad to trim some spacing on a few uprights to clear the drag and antidragwires. Then I noticed when helping my brother re-cover his Citabria thatthey shifted some ribs as much as 2" to clear the wires. Just do whatyou've gotta do.Jack -----Original Message-----
Ted,You are doing it exactly right. I followed BHP's spacing exactly and havehad to trim some spacing on a few uprights to clear the drag and antidragwires. Then I noticed when helping my brother re-cover his Citabria thatthey shifted some ribs as much as 2" to clear the wires. Just do whatyou've gotta do.Jack -----Original Message-----
Re: Pietenpol-List: Rib spacing question
Original Posted By: "Ted Brousseau"
Ted,I'm exactly where you are. I've spaced mine out and run a string as well.Most of the ribs are spaced ok. I figure it's no big deal to move them leftor right a bit to clear the cables (drag wires) If you have to you can takea dremel tool and grind the corner of a rib diagonal or vertical just a bittoo to give a little clearance. You only really need about 3/16 to1/4 inchclearance anyway.Just my two cents.Sorry I missed you in Tallahassee last week. Job emergencies. Give me acall.See You.Bert----- Original Message -----
Ted,I'm exactly where you are. I've spaced mine out and run a string as well.Most of the ribs are spaced ok. I figure it's no big deal to move them leftor right a bit to clear the cables (drag wires) If you have to you can takea dremel tool and grind the corner of a rib diagonal or vertical just a bittoo to give a little clearance. You only really need about 3/16 to1/4 inchclearance anyway.Just my two cents.Sorry I missed you in Tallahassee last week. Job emergencies. Give me acall.See You.Bert----- Original Message -----