Brodhead Pietenpol Association

Original Posted By: "Peter W Johnson"
Group,I am starting to make the fuselage brackets for the landing gear (split axle) and have a question regarding the tab that the wing lift strut attaches to. The plans say bend the tab up 20 degrees.I drew a diagram on some graph paper with a vertical measurement of 46" (fuselage 24" plus cabanes 22") and a horizontal measuremaent of 80" (from the cabane out to the spar bracket).This gives me an angle of 30 degrees.Am I measuring something wrong, and is the angle of the tab critical ? Only want to make these things once :-)Congratulations Bert,Rod WoollerChidlowAustralia ( Three and a half years in )________________________________________________________________________________

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Rod,My Jim Wills plans show 28 degrees.Cheers Peter.Wonthaggi, Australiahttp://www.cpc-world.com-----Original Message-----

Original Posted By: "rod wooller"
I made mine right to the plans and after final assy , my tabs weren't righton the centerline of the strut. The plans also say that you need some playin the holes to avoid side stresses on the bolt and "chrystalizing" walt evansNX140DL----- Original Message -----

Original Posted By: Rick Holland

Original Posted By: "Phillips, Jack"

Original Posted By: "Phillips, Jack"

Original Posted By: Clif Dawson
Subject: Re: Pietenpol-List: Lift strut angleRod, The angle of the tab is critical, and should be parallel to the lift struts, and have nice clean round holes in them, to attach the lift struts. Asfor the holes, I much prefer pilot holes, then match drill the finished holes when the lift struts are fitted. I suggest you triple check all your measurements (especially if you change the cabane strut length, or the fuselagewidth), and use the angle you come up with. The angle is much closer to 30 than it is to 20. While we're on this subject, the 90 angle fittings on the inside calls out for 20 ga. (.035"). Last summer, I changed all four of those angle fittings inside, because they were .035" 1020 steel, and they dimpled into thewood. I replaced them with .063" 4130 steel. On the front cross strap, I also added a 3/16" (#10) bolt up through the 2" cross piece strap, through theWhite Ash cross strut, because the 2" strap bowed away from the bottom of the fuselage. It was probably caused by the negative G's imposed on the lift struts, as a result of a hard landing. This is somewhat of a common anomaly ofthe design. I only installed one bolt up through the centerline, but now the 2"strap is showing a gap on the left side. I will add two more 3/16" (#10) bolts for a total of three bolts up through the Ash Cross Strut. I'm talking about the front strap. For the rear cross strap, there is already plenty of bolts going up through the strap into the ash cross piece, with the rudder bar brace, and it iswhere I mounted the master cylinders pivot points, a couple of inches to each side of the centerline. While flying, I use the 30 angle of the lift struts to attain a 30 bank angle, by keeping them parallel to the ground. Chuck G.NX770CGWichita KSwishing you Texas Boys could shove some of that 70 weather up this way !!________________________________________________________________________________Date: Wed, 26 Jan 2005 20:26:44 -0800

Original Posted By: Galen Hutcheson
Thanks guys for all the replies and helpful hints. I'll re-measure everything accurately and make the angle to suit.Thanks again,Rod>From: "rod wooller" >Reply-To: pietenpol-list(at)matronics.com>To: pietenpol-list(at)matronics.com>Subject: Pietenpol-List: Lift strut angle>Date: Wed, 26 Jan 2005 16:44:12 +0800>>>>Group,>>I am starting to make the fuselage brackets for the landing >gear.............>Rod Wooller>Chidlow>Australia ( Three and a half years in )>>________________________________________________________________________________Date: Wed, 26 Jan 2005 21:14:35 -0800 (PST)

Original Posted By: "Norman Stapelberg"
Subject: Re: Pietenpol-List: Lift strut angleClif wrote:Jim Wills plans?Clif,I believe Rod was referring to the Pietenpol plans modified by Jim Wills,for PFA (UK) approval . I understand those plans have a few modificationsincluding a quick-disconnect for aileron connections (since the majority ofUK Piets will only be flown in summer and stored for the winter) andbuilt-up spars (because spar stock is scarce in the UK). There are likelyother modifications/corrections, and I believe that variation from anydetails on those plans must be granted a concession by the PFA (correct meif I'm wrong, anyone who knows better).Bill________________________________________________________________________________

Original Posted By: "Phillips, Jack"
Hello Fellow Piet pilotsThought I'd pass this one out there, went flying in my plane with theinstructor, only to find that the air speed and VSI react as the powersetting is changed, it seems I have a problem with the static port. I am currently using a pitot/ static tube, the static tube sits about 4"below the wing with the pitot tube another 2"lower. The front cockpitalso has a ASI and Altimeter, these however are not connected to thepilots static system, the front Altimeter reads 100' higher than therear cockpit, the ASI reads 10mph higher than the rear instruments.My thoughts are to plumb all the instruments to the static system, andthen to use an alternate static port, my question is this where wouldthe best place to pick up a reliable static position.To date we have flown 2hrs since the rebuild and everything else seemsin order.ThanksNorman StapelbergSouth AfricaZS-VJA (121hrs)________________________________________________________________________________Subject: RE: Pietenpol-List: Static portDate: Thu, 27 Jan 2005 12:41:08 -0800

Original Posted By: "Norman Stapelberg"
I took a shot at it, and guess got lucky. On the bottom of the rearinstrument panel, made a fitting with a small hole in it, to put the statictube thru the ply, kind of down pointing at my right shin. No realvariations, and airspeed checks with GPS. easy installation too, 12"ofplastictubing.Added a front ASI later and didn't add to the static system, and it has somevariations.walt evansNX140DL----- Original Message -----