Pietenpol-List Digest Archive

Sun 04/20/14


Total Messages Posted: 2



Today's Message Index:
----------------------
 
     1. 05:50 AM - Re: Thank You Matt (nightmare)
     2. 09:25 PM - Re: Vi Kapler hinges (taildrags)
 
 
 


Message 1


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    Time: 05:50:17 AM PST US
    Subject: Re: Thank You Matt
    From: "nightmare" <pauldonahuepilot@yahoo.com>
    this temp shut down is a great reinforcement as to why we make our donations. would hate to see this forum shutdown because Matt couldn't make a buck. Thanks Matt -------- Paul Donahue Started 8-3-12 do not archive Read this topic online here: http://forums.matronics.com/viewtopic.php?p=422150#422150


    Message 2


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    Time: 09:25:35 PM PST US
    Subject: Re: Vi Kapler hinges
    From: "taildrags" <taildrags@hotmail.com>
    Howdy, low 'n' slow fliers; First, I'd like to wish you all a happy and blessed Easter. Part of mine was spent at the hangar, on a beautiful Sunday afternoon, but it was punctuated by some less-than-pleasant moments as I attempted to replace the front main seal on my engine and I'll pass over that in the spirit of the season. Suffice it to say that the seal and spring have now been removed, cleaned up again, and are back in place on the crankshaft nose waiting for my patience to return before I attempt to press them back into place. Maddening. Rebuild work on the Stromberg carb went much better, and after getting a rebuild gasket set from Aircraft Spruce and cleaning everything up, I just need to set the float level and the carb will be ready to reassemble and put back on the engine so I can resume testing and compression checks. An update on the hinges. I now have the jigs and tooling from Vi and am trying to get an updated cost and delivery date for more of the rough castings for the hinges. It is my intent to produce a final, higher-quality run of the cast aluminum hinges as a legacy to Vi and Mr. Pietenpol. The inventory will be of a limited quantity (probably in stock till I can't find my way out of a darkened room without assistance), but the hinges will be produced from the same castings and using the same jigging as Vi has always used. The difference will be that we will smooth the parts a bit more and have them reflect the longevity that the Air Camper design has itself developed over the years. A bit more refined finish, I guess you could say... in the final production run of these parts. I'm going to try, anyway. In parallel with this, and to bring things into the 21st century, it is my intent to engineer and produce modern parts using the same geometry and design but in a tougher, stronger, more dimensionally stable, lighter, and more durable material. In doing so, I hope to offer the new parts at about the same cost and with the same reliability as before. Vi tells me that the original hinges load-tested at 700 lbs. static, and he sent me a failed pair of hinges that were used for that testing. He has set the bar for my engineering, and I am confident that I can meet or exceed this parameter while still achieving the other goals of better dimensional stability and reduced weight. In any case, picture 2100 lbs of static (or dynamic) force on any of the three tail surfaces of an Air Camper, such that a single pair of hinges would have to sustain 700 lbs of load. It says a lot for the durability of these airplanes, and it especially says a lot about why no one has ever seen the tail surfaces of an Air Camper fly off. If anyone has evidence to the contrary, I'd be very interested to hear it. -------- Oscar Zuniga Medford, OR Air Camper NX41CC &quot;Scout&quot; A75 power Read this topic online here: http://forums.matronics.com/viewtopic.php?p=422181#422181




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