Brodhead Pietenpol Association

Original Posted By: Isablcorky(at)aol.com
About 1/16" plywood, I haven't seen any mention of how much isneeded for rib gussets, and it's not on the wood lists I have. I tried'plywood gusset' search on archives, amount was not mentioned. How muchused on the Piet in total? I drew out the rib on my jig board this weekend. The lines aren'tas smooth as I wished, but the capstrip will not know how bad I draw. Aslong as the measurements for the layout are correct, and to the requiredshape it should be good, right? Cut and drilled blocks, will cut camstonight maybe. Does the 60" rib length include the leading and trailing edge of thewing, which get added on later? Or is the rib 60" and the leading &trailing edge make it a bit longer? I laid it out from the L.E. to the endof rib, 60" , with NO T.E. added on . That's what it looks like on myplans, and the full size rib drawing. Now the really important question. I plotted the rib with the dimensionfrom the L.E. to spar front, (6" or 6 3/4", can't remember now!) and 273/4" between spars. Would like to use 3/4" spars. Does this sound like I'm on the right track? I'm sorry if this hasbeen recently discussed, but this is the first part I'm making on my plane,and there are going to be a lot of questions until I get in the groove ofbuilding. I don't want to make a critical mistake at this point, to have itbite me when I attach the wings years from now.Sorry for the long questions, but it has been close to 25 years since I didany woodworking, but wow, this is fun so far!Kent________________________________________________________________________________

Original Posted By: "Michael Brusilow"
Subject: Re: Pietenpol-List: Use of T-88 Indoors/MEK, solventsKip,From your opinion would it be best for me to go the nitrate, butyrate method rather than the Poly route for chemical safety? I want to finish my Piet as good as possible but I dare not face any hazards in the process as I will most likely put it on the block shortly after the fly off is completed.Corky in La________________________________________________________________________________

Original Posted By: Kent Hallsten
----- Original Message -----

Original Posted By: "Hubbard, Eugene"
Thanks Mike, I guess a little here and there won't make much of a difference.Kent > Now the really important question. I plotted the rib with thedimension from the L.E. to spar front, (6" or 6 3/4", can't remember now!) and 27 3/4" between spars. Would like to use 3/4" spars. > > Mike B Piet N687MB ( Mr Sam )________________________________________________________________________________

Original Posted By: Kent Hallsten [mailto:KHallsten(at)governair.com]
Kent,It is fun, isn't it. The one question you asked that I might have a uniqueanswer for is about the 3/4 inch spars. I did mine with one inch spars, andthe plans are pretty unclear...but...somewhere deep in the "builder'smanual" that came with the plans, there is a comment that with 3/4 inchspars, it was expected that the builder would use 1/8 plywood blocks betweenthe spar and the (sized for 1 inch spars)ribs. This makes all of the otherdimensions identical to those with 1 inch spars. I think the comment is inthe section that explains how there's really no need to update the plans :-POther than that, as I remember I completely used up a 2 x 4 sheet of 1/6plywood and then some for rib gussets when I was doing this. I thought that60 inches was the overall chord, L.E. and T.E. included, but I could beremembering wrong. I don't have my plans handy. Whatever the layout datasays works. I know that I used pre-cut 60" material for both top and bottomwithout problems. As for layout, remember to leave some extra rib material at the leadingedge to clamp to. Even after soaking and pre-bending, the leading edge bendis pretty stiff, and the area around the gusset gets to be a pretty glueymess. Trim the L.E. and T.E. after the glue is dry--that way you can getthem exactly alike. I wrote an article for the EAA chapter 14 newsletterlast year about doing this--you might find it on their website. Gene HubbardSan Diego-----Original Message-----

Original Posted By: Kip & Beth Gardner
----- Original Kent, somewhere deep in the "builder's manual" that came with the plans, there is a comment that with 3/4inch spars, it was expected that the builder would use 1/8 plywood blocksbetween the spar and the (sized for 1 inch spars)ribs. This makes all of theother dimensions identical to those with 1 inch spars. I think the commentis in the section that explains how there's really no need to update theplans ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ That's how I did it. Mike B Piet N687MB( Mr Sam )________________________________________________________________________________Date: Mon, 7 Jan 2002 20:08:06 -0500

Original Posted By: "twinboom"
Subject: Re: Pietenpol-List: Use of T-88 Indoors/MEK, solventsThanks Kip,Talked with my tech advisor late today. He sticks to the Poly system as the least hazardous. He is so willing to help I hesitate to argue with him in as much as I know so little on the subject. Medicine and chemistry are my mysteries. On the effects of the stuff at my age, I've already been through one cancer bout and survived, less family jewels, but I feel fine and want to fly fly fly. Was encouraged a few days ago when they said the Sport Pilot deal was being resurfaced and then this diddy dumb wad had to direct that 172 into the IBM building. I'm beginning to wonder maybe the good Lord might not want me to fly again. Thanks again for your comments and advice. Corky who lives on the SOUTH side of my street in La________________________________________________________________________________