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Pietenpol-List: tense about cables
Posted: Thu Feb 13, 2014 5:09 pm
by matronics
Original Posted By: "Gary Boothe"
hey,i'm making the brace cables for the fin and horizontal stabilizer, but... howtight should they be, and what is the procedure for checking? thanks mike w.________________________________________________________________________________
RE: Pietenpol-List: tense about cables
Posted: Thu Feb 13, 2014 6:04 pm
by matronics
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Michael,Did you know that the matronics web site has a search engine? If you input"Cable Tension", you will see 101 entries! The answer is simply a dull "THWANG." Make all the same tone and you'll begolden.Gary BootheNX308MB-----Original Message-----
Pietenpol-List: Re: tense about cables
Posted: Thu Feb 13, 2014 7:26 pm
by matronics
Original Posted By: "tools"
1. Clevis and cotter pin.2. I've got no washer... never really thought about it.3. Seen it done all four ways. Recessed, covered over. Recessed and cut out.Surface mounted covered and cut out.My preference would be leave flush, install hinges after covering, which meansyou'll need nut plates inside. This seems to be the best arrangement for maintenance.Also probably the neatest in terms of covering and painting. Cuttingaround them is harder for me. I recessed them in MSP/St Pauls EAA chapter project. If I were to do that again,I would use flat head fasteners. 4. Always meant to look, but forgot. Got no clue!Read this topic online here:
http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: tense about cables
Re: Pietenpol-List: tense about cables
Posted: Fri Feb 14, 2014 6:55 am
by matronics
Original Posted By: danhelsper(at)aol.com
To add, one needs to seal the aileron gap. The ailerons will be very less effectivethe slower the air-speed do to the air bleed between the gap. The gap onan aileron is only good if you have a "Frise" design aileron.Seal it anyway you want, just seal it for the full length of the aileron. Moreof a safe control issue.WF2--------Read this topic online here:
http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: tense about cables
Posted: Fri Feb 14, 2014 7:13 am
by matronics
Original Posted By: Gary Boothe
Michael,uhh..........love you man, but you know, you have opened a very sore subject once again. Bones of contention long-ago buried but now once again brought to the surface to be rehashed and relived with opened wounds. So many disagreements...."DING"..."WANG"...."DUNNNGG".... But of course my friend Gary is correct, with the proper "TWANG". Proof positive is the result. His airplane flies perfectly,....like mine.Dan HelsperPuryear, TN-----Original Message-----
Re: Pietenpol-List: tense about cables
Posted: Fri Feb 14, 2014 7:43 am
by matronics
Original Posted By: danhelsper(at)aol.com
If you're considering nut plates... here's what I just learned...The aircraft variants are lock nuts. You have to push on a phillips decently toget them in. If you install the nut plates with nails or glue, you'll likelypop one loose. Then you've got a mess...I just redid all of mine with #2 wood screws to hold the nut plates. Also, useBRAND NEW phillips fasteners and a BRAND NEW screwdriver. Or, better yet, usea fancy new fangled drive (square, T series, perhaps hex) that'll prevent youfrom having to push at all, lessening the chance of taking one loose duringinstallation.You can make your own nut plates too, using a pinched style of lock nut by brazingto a plate. I wouldn't use nylon in this case since the brazing would probablymess up the nylon...Probably don't have to use lock nuts, just preflight well, or use lock washerson the outside. I'd cover the part with fasteners partially inserted to preventany paint substance from getting inside them during covering and painting.Can't really clean lock nuts effectively with a tap afterwards, without removingmost of the "lock". Sans lock nuts at all, I'd use fine thread as that's better for vibration resistance.Regular threads are for strength.Read this topic online here:
http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: tense about cables
Posted: Fri Feb 14, 2014 7:44 am
by matronics
Original Posted By: danhelsper
Woops...but of course..... I meant to say.... "THWANG".Dan HelsperPuryear, TN-----Original Message-----
RE: Pietenpol-List: tense about cables
Posted: Fri Feb 14, 2014 7:50 am
by matronics
Original Posted By: owner-pietenpol-list-server(at)matronics.com
"THWANG" in California could easily be "TWANG" in Tennessee. Gary BootheNX308MB
Re: Pietenpol-List: tense about cables
Posted: Fri Feb 14, 2014 8:03 am
by matronics
Original Posted By: "Gary Boothe"
thanks guys. mike w.________________________________________________________________________________