Pietenpol-List: HIPEC

matronics · Post by **matronics** » Mon Feb 09, 2004 9:25 pm

Original Posted By: Rcaprd(at)aol.com
I havent heard of HIPEC that is being discussed. Is it in the catalougs? I checkedACS and didnt see it.Whats the 2 cent story about this.Dick________________________________________________________________________________

matronics · Post by **matronics** » Tue Feb 10, 2004 10:14 am

Original Posted By: Doc Mosher
You will find it at Falconar avia in Edmonton AB Canada. Website is www.falconaravia.com .Shawn Wolk________________________________________________________________________________Date: Tue, 10 Feb 2004 10:17:48 -0600

matronics · Post by **matronics** » Tue Feb 10, 2004 1:18 pm

Original Posted By: dave rowe

matronics · Post by **matronics** » Tue Feb 10, 2004 2:05 pm

Original Posted By: dave rowe
in regards to the accident of Joe Carter and his Celebrity... the Fabric was notHiPec. I believe it was a Poly-Fiber process or similar.I will say though that the covering on that aircraft was about 10 yrs old.... andit took that long for the fabric to begin delaminating.The way I see it rib stitching is just something you do to a fabric covered airplane....BUT if there is a TESTED and PROVEN method that does not require it...I suppose one could go that route. Tested and Proven are the key words.It would be well worth the effort to trace the test data of the HiPec processand see just exactly how it holds up and under what conditions/wing loadings/etc.Nothing wrong with evolution and change but it's got to be PROVEN!DJ----- Original Message -----

matronics · Post by **matronics** » Tue Feb 10, 2004 2:36 pm

Original Posted By: Michael D Cuy

matronics · Post by **matronics** » Tue Feb 10, 2004 2:51 pm

Original Posted By: "dave rowe"
Rib stitching is an acceptable method for any fabric aerodynamic surfaceaccording to AC 43-13.1B It can be used in place of screws, rivets. orclips.----- Original Message -----

matronics · Post by **matronics** » Tue Feb 10, 2004 4:30 pm

Original Posted By: dave rowe

matronics · Post by **matronics** » Wed Feb 11, 2004 6:54 am

Original Posted By: KRSBtv(at)aol.com
Subject: Re: Pietenpol-List: HIPECIn a message dated 2/11/04 1:43:21 AM Eastern Standard Time, rowed044(at)shaw.ca writes: > www.slotcar.com/drs/gachart.htmDaveThanks for the conversion chart. Where did you go to find the comparative data to swap out the steel for al. I have some fittings that I purchased already laser precut (28) of them. But for most of the others if they work, the al. in its stead would add some additional qualities that the steel doesn't offer.Greg MenocheDelaware________________________________________________________________________________

matronics · Post by **matronics** » Wed Feb 11, 2004 8:16 am

Original Posted By: "Carl Loar"
Subject: Re: Pietenpol-List: HIPECThere was an earlier post about the suitability of gluing fabric to undercamber wings. When I posted my info about Avids and Kitfox, I guess I didn'tmake it clear that both styles of wings (undercamber as on the STOL and Heavy Hauler wings and the traditional rib on the Speedwing) never had fabric separationwhen using the glue-only process.A friend stalled my Avid out on takeoff and the plane was totaled. Not a single fabric glue joint (at the juncture where fabric was glued directly to thecapstrip on the spar) failed in the crash. I've done a lot of checking with friends in the last few days, and no one is aware of fabric pulling off of capstrips on any Kitfox or Avid, aerobatic ... heavy hauler or speedwing. ________________________________________________________________________________

matronics · Post by **matronics** » Wed Feb 11, 2004 11:37 am

Original Posted By: "Gadd, Skip"
Subject: Re: Pietenpol-List: HIPECIn a message dated 2/11/2004 12:43:21 AM Central Standard Time, rowed044(at)shaw.ca writes:All attempts atseparating the fabric from 1/4 to 3/4 inch ribs resulted in tearing ofthe wood fibre, the glue joint remained intact. How comforting would it be to see wood fibres on the fabric as you examine the wreckage? Sorry, I'll stick with the old tried and true on this one Don________________________________________________________________________________

matronics · Post by **matronics** » Wed Feb 11, 2004 11:47 am

Original Posted By: "Alex Sloan"
Dave,I have a question for the HiPec book.Do they specifically recommend it without rib stitching for built-up, trusstype ribs?I will give you that if the fabric/wood joint is strong enough to tear woodfibers when separated, than the joint itself should not be a problem. I canalso see the under camber should not be a problem.My concern is the strength of the rib itself in tension.I guess I am just traditionalist enough that I will rib stitch anyway, but Iam interested in there take on truss ribs.Thanks, Skip________________________________________________________________________________

matronics · Post by **matronics** » Wed Feb 11, 2004 8:36 pm

Original Posted By: dave rowe

matronics · Post by **matronics** » Wed Feb 11, 2004 8:49 pm

Original Posted By: dave rowe

matronics · Post by **matronics** » Wed Feb 11, 2004 9:06 pm

Original Posted By: dave rowe

matronics · Post by **matronics** » Wed Feb 11, 2004 9:55 pm

Original Posted By: dave rowe

matronics · Post by **matronics** » Wed Feb 11, 2004 10:04 pm

Original Posted By: Gnwac(at)cs.com
Subject: Re: Pietenpol-List: HIPECIn a message dated 2/11/04 9:04:39 PM Central Standard Time, rowed044(at)shaw.ca writes:>I still prefer rib stitching, no matter what type of adhesive is used. Stitching sandwiches the assembly together from the outer surface, instead of depending on adhesives that attach the faying surfaces.Chuck Gantzer________________________________________________________________________________

Brodhead Pietenpol Association