Pietenpol-List: OT Airport Management issues, WARNING LONG EMAIL

matronics · Post by **matronics** » Sun May 18, 2014 2:44 pm

Original Posted By: Steven Dortch
Kerri-Ann wrote->On the cast hinges, what type of cast process is used e.g. sand, permanent die,etc.?I have no idea. These are the same parts that Vi has been offering for many years,and they are "new old stock" castings... I have not had any new parts madeyet.>What metal is being used?I have no idea what metal is being used, except that it is an aluminum castingalloy. These parts were obtained from Vi Kapler, and he had them cast by a foundryhere in the United States.>How are they inspected after casting?Eyeball. There are a number of reject castings in the bunch of material that Visent me, and it's obvious that they didn't fill the mold completely, or therewas excess slump, a deformity, or other obvious defect. >All this will effect the integrity of the part over time.I agree.>Are they checked for cracks, inclusions, porosity, etc?Yes, but not microscopically or in any other fashion except by eye and feel. Ido them the same way Vi has done them for many years. I suppose I could proof-testeach set before it goes out, and that would be easy enough to do with ajig and weights.And in reply to Ken, I must say that I came very close to boxing up the whole lotof this and storing it in the hangar forever after I had a request for moreinformation from someone asking about the hinges. They wanted a performanceguarantee (in effect). It's no wonder Vi got out of the business.--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sun, 18 May 2014 22:55:44 -0500Subject: Pietenpol-List: OT Airport Management issues, WARNING LONG EMAIL

matronics · Post by **matronics** » Mon May 19, 2014 6:53 am

Original Posted By: John Kuhfahl
Subject: Re: Pietenpol-List: OT Airport Management issues, WARNING LONG EMAIL

matronics · Post by **matronics** » Fri May 23, 2014 7:22 am

Original Posted By: Steven Dortch
Wow. Are you flying yet? With that level of attention-to-detail your workmanship must be stunning. I would like to see the results.Lorenzo> > In reply to Lorenzo=3B> > > Always trying to shave an ounce here or there without compromising strength.> > > All my longerons=2C uprights and diagonals we routed out to an "I" profile to save weight.> > Cheers=2C> WF2 ________________________________________________________________________________Date: Fri, 23 May 2014 10:47:14 -0500Subject: Re: Pietenpol-List: OT Airport Management issues, WARNING LONG EMAIL