---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Mon 03/20/17: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:05 AM - Re: Re: Vi Kapler hinges (Jack Textor) 2. 01:20 PM - Re: Vi Kapler hinges (taildrags) 3. 01:22 PM - Re: Vi Kapler hinges (taildrags) ________________________________ Message 1 _____________________________________ Time: 04:05:56 AM PST US From: Jack Textor Subject: Re: Pietenpol-List: Re: Vi Kapler hinges You are a trooper Oscar! As I look back to my set bought from Vi, it was a bargain! Did Vi cast his own? Jack Textor Sent from my iPad > On Mar 19, 2017, at 11:49 PM, taildrags wrote: > > > OK, so another update on the cast aluminum hinges. I have good news and bad news. The good news is that I just sent out 3 sets of hinges and hand-delivered a 4th set to a builder a couple of days ago. More good news is that I've started on 4 more sets out of 21 that are on the waiting list, so slowly but surely I'm getting there ;o) > > The bad news is that of my remaining stock of rough castings, I have just enough to finish the sets for the people on the waiting list, and not a single set more. With a little luck, I'll have everyone on the list supplied with hinges by summer and will be all out of rough castings to make any more. > > Now for more possible good news: I've contacted the person who supplies me with the rough castings and he got right back to me. He's going to see if the foundry can run me off another batch of enough to make another 20-25 sets. Fingers crossed! > > -------- > Oscar Zuniga > Medford, OR > Air Camper NX41CC "Scout" > A75 power, 72x36 Culver prop > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=467469#467469 > > > > > > > > > ________________________________ Message 2 _____________________________________ Time: 01:20:48 PM PST US Subject: Pietenpol-List: Re: Vi Kapler hinges From: "taildrags" Jack; when I purchased the parts and tooling from Vi, there were some rough blanks as well as castoffs included in the stuff. The castings that he included look identical to the ones that I'm using, and he gave me the name of the foundry that he used. They are the same castings, presumably from the same alloy although the ones that I tested went to almost 30% more load than Vi's test and never failed to fracture like his did. Either the latest ones are a stronger alloy or maybe Vi didn't bother running his test as carefully as I did mine. The test article that he sent me a picture of failed at 700 lbs. That means that a single one of his hinges could hold up the entire empty weight of an Air Camper like mine. The hinge pair that I tested went to 900 lbs before I stopped the test and it still had not failed. The hinge base deformed plastically under the load, but nothing fractured. Another 188 lbs of load and that hinge would have been holding up the equivalent of the entire maximum gross weight of my Air Camper (1088 lbs). Let's just say that the cast hinges are pretty strong. -------- Oscar Zuniga Medford, OR Air Camper NX41CC "Scout" A75 power, 72x36 Culver prop Read this topic online here: http://forums.matronics.com/viewtopic.php?p=467473#467473 ________________________________ Message 3 _____________________________________ Time: 01:22:41 PM PST US Subject: Pietenpol-List: Re: Vi Kapler hinges From: "taildrags" Oops... I just re-read what I wrote and what I should have said was that my hinges "never failed to the point of fracture" like Vi's did. -------- Oscar Zuniga Medford, OR Air Camper NX41CC "Scout" A75 power, 72x36 Culver prop Read this topic online here: http://forums.matronics.com/viewtopic.php?p=467474#467474 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message pietenpol-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Pietenpol-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/pietenpol-list Browse Digests http://www.matronics.com/digest/pietenpol-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.