Pietenpol-List: Entry Step

matronics · Post by **matronics** » Tue Feb 01, 2011 5:31 pm

Original Posted By: helspersew(at)aol.com
Today I cut up some spruce and plywood and tried my hand at laminating the cabanes. I was intending to do 1 1/8" thick by 2" wide but ended up with about 7/8" thickness (don't ask). I hope the thickness is enough=2C but I guess if it doesn't seem right I'll add some more thickness - after all=2C it's already laminated. What sizes have others done for sizes?? I laminated an extra one which I'll use as a test dummy. My intention is to see what they can stand in tension and compression but I don't quite know how to set up a test rig.Tom B. ________________________________________________________________________________Subject: Pietenpol-List: Entry Step

matronics · Post by **matronics** » Tue Feb 01, 2011 6:51 pm

Original Posted By: helspersew(at)aol.com
Here is an option.Dan HelsperPuryear, TN. (No snow, only rain)________________________________________________________________________________Subject: Pietenpol-List: Entry Step

matronics · Post by **matronics** » Tue Feb 01, 2011 6:51 pm

Original Posted By: Owen Davies
Here is an option.Dan HelsperPuryear, TN. (No snow, only rain)________________________________________________________________________________Date: Tue, 01 Feb 2011 20:22:38 -0500

matronics · Post by **matronics** » Tue Feb 01, 2011 7:32 pm

Original Posted By: Kenneth Bickers
Subject: Re: Pietenpol-List: Entry Step

matronics · Post by **matronics** » Tue Feb 01, 2011 7:47 pm

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Tom,My guess is that 7/8=94 is good, but you can build a tension tester just bymaking an L-shaped lever at about a 10-1 ratio. You put 200 lbs on the longlever, you exert 2,000 lbs on the short lever. There are 8 bolts that holdthe cabanes to the wings, so, if you only test to 2,000 lbs, that=92s the sameas 16,000lbs tested for all 8. Even if you follow Shad Bell=92s Jungster thru+9 g=92s, that=92s the approximate equivalent of 9,900 lbs (God be with you).Additionally, most cabane fittings have at least 2 bolts in the cabane,essentially cutting the force on each bolt by =BD! =91Course, I=92m just a countryboy, with no degree in nuthin=92=85maybe one of you engineer types can chimein=85.Gary Boothe

matronics · Post by **matronics** » Tue Feb 01, 2011 8:42 pm

Original Posted By: prhoads61(at)frontiernet.net

matronics · Post by **matronics** » Tue Feb 01, 2011 10:30 pm

Original Posted By: helspersew(at)aol.com
wow - that's way to pretty to step on though...Subject: Pietenpol-List: Entry Step

matronics · Post by **matronics** » Tue Feb 01, 2011 10:36 pm

Original Posted By: TOM MICHELLE BRANT
Michael Perez wrote:> Of course the rims, spokes and nipples are not cheap.Care to elaborate? I'm looking at a couple of wheel options and I curious howthey compare in price.--------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________

matronics · Post by **matronics** » Fri Apr 28, 2017 9:35 pm

Original Posted By: "K5YAC"
Here is an option.Dan HelsperPuryear=2C TN. (No snow=2C only rain) ________________________________________________________________________________Subject: Pietenpol-List: Re: Wire Wheel Build-up

Brodhead Pietenpol Association