---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Thu 09/10/15: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:11 AM - Re curved tailpipes (Douwe Blumberg) 2. 08:13 AM - Re: What's up Doc? (Ryan Mueller) 3. 03:23 PM - Bungee vs. Coil Spring (Charles Burkholder) 4. 03:38 PM - Re: Bungee vs. Coil Spring (Jack) 5. 05:16 PM - Re: Bungee vs. Coil Spring (jarheadpilot82) 6. 06:00 PM - Re: Bungee vs. Coil Spring (Jeff Boatright) 7. 08:35 PM - Re: Bungee vs. Coil Spring (Brian Kenney) 8. 09:34 PM - Re: The 'Piet Builder's Bible' Project - Want In? (taildrags) ________________________________ Message 1 _____________________________________ Time: 06:11:34 AM PST US From: "Douwe Blumberg" Subject: Pietenpol-List: Re curved tailpipes Hey Oscar, Actually, I discovered I could put both ends under the base of my shop hoist and then use the hoist to "raise" sections a little at a time all along the length of the pipe. Took less than thirty minutes for each! Douwe Time: 09:18:05 PM PST US Subject: Pietenpol-List: Re: Blakesburg adventure From: "taildrags" Douwe: whoa-! I had never seen your airplane from an angle that showed the curvature in the exhaust pipes. I always assumed that they were straight all the way back to the offset kickers past the rear cockpit. How'd ya do that??!! Pack them full of sand and then gently bend them around a big water tank or something? -------- Oscar Zuniga Medford, OR Air Camper NX41CC "Scout" A75 power Read this topic online here: http://forums.matronics.com/viewtopic.php?p=446954#446954 ________________________________ Message 2 _____________________________________ Time: 08:13:22 AM PST US Subject: Pietenpol-List: Re: What's up Doc? From: "Ryan Mueller" Glad to see you're still involved, Doc... Maybe I'm out of the loop on things; did something happen with Andrew Pietenpol? Last I knew he was continuing the family's sale of plans at http://www.pietenpolaircraftcompany.com... Read this topic online here: http://forums.matronics.com/viewtopic.php?p=446970#446970 ________________________________ Message 3 _____________________________________ Time: 03:23:56 PM PST US From: Charles Burkholder Subject: Pietenpol-List: Bungee vs. Coil Spring Hi folks. I am building the steel split axle landing gear for my piet. The main frame is fabricated and tack welded and I am ready to fabricate and install the suspension system. Originally I went for the steel coil spring system for ease of construction and 'weld and forget' rather then having to install and replace bungees. Having ordered and received the springs I want to hear peoples input on using them for a Piet. They seem heavy and too hard-springed for a light aircraft for a Piet but maybe that is not the case? Any input on them versus bungees would be appreciated. Thanks Charles Burkholder ________________________________ Message 4 _____________________________________ Time: 03:38:05 PM PST US From: Jack Subject: Re: Pietenpol-List: Bungee vs. Coil Spring Charles, I have the springs on my gear. I bought a project and finished it. The original springs were way too soft. I contacted Wag Aero who sells a replacement spring option for the Cub bungees. They couldn't sell me the springs but gave me a number to call. I ordered the springs and they were a direct bolt on replacement. They seemed too strong but after flying with them they are just right. Good luck, Jack Model a ford Wire wheels Phase 1 Sent from my iPad > On Sep 10, 2015, at 7:27 PM, Charles Burkholder wrote: > > > Hi folks. > I am building the steel split axle landing gear for my piet. The main frame is fabricated and tack welded and I am ready to fabricate and install the suspension system. Originally I went for the steel coil spring system for ease of construction and 'weld and forget' rather then having to install and replace bungees. Having ordered and received the springs I want to hear peoples input on using them for a Piet. They seem heavy and too hard-springed for a light aircraft for a Piet but maybe that is not the case? Any input on them versus bungees would be appreciated. > Thanks > Charles Burkholder > > > > ________________________________ Message 5 _____________________________________ Time: 05:16:04 PM PST US Subject: Pietenpol-List: Re: Bungee vs. Coil Spring From: "jarheadpilot82" Maybe this will help answer some of your questions. http://flycorvair.net/2012/10/27/new-die-spring-landing-gear-on-a-pietenpol-10-a-m-4-p-m/ -------- Semper Fi, Terry Hand Athens, GA Read this topic online here: http://forums.matronics.com/viewtopic.php?p=446983#446983 ________________________________ Message 6 _____________________________________ Time: 06:00:52 PM PST US Subject: Pietenpol-List: Re: Bungee vs. Coil Spring From: "Jeff Boatright" My Piet had bungees originally. They wore out, I had trouble replacing them. I substituted springs. Better in every way. I'd never go back to bungees. HTH and YMMV. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=446985#446985 ________________________________ Message 7 _____________________________________ Time: 08:35:12 PM PST US Subject: Pietenpol-List: Re: Bungee vs. Coil Spring From: Brian Kenney Charles your question is a typical one. What compromise is the best? I have a straight axle so bungees are the only practical choice. They work very well. If you want to absorb energy then rubber bands are much better per lb of material than steel. In a split gear the amount of energy that can be absorbed is limited by the volume of spring material in the space and therefore both are inadequate to do the job. Therefore the tires play an important role because you could argue that the gear is semi-rigit. Solid gear works fine with good piloting skills so semi-solid work even better. If you want to compare steel springs have a look at how big they are on an Aeronca champ and they have a shock as well. The choice is yours as there is no correct answer and no incorrect answer. Sent from my iPad > On Sep 10, 2015, at 6:23 PM, Charles Burkholder wrote: > > Hi folks. > I am building the steel split axle landing gear for my piet. The main frame is fabricated and tack welded and I am ready to fabricate and install the suspension system. Originally I went for the steel coil spring system for ease of construction and 'weld and forget' rather then having to install and replace bungees. Having ordered and received the springs I want to hear peoples input on using them for a Piet. They seem heavy and too hard-springed for a light aircraft for a Piet but maybe that is not the case? Any input on them versus bungees would be appreciated. > Thanks > Charles Burkholder ________________________________ Message 8 _____________________________________ Time: 09:34:42 PM PST US Subject: Pietenpol-List: Re: The 'Piet Builder's Bible' Project - Want In? From: "taildrags" Clif: thank you for the book recommendations. I've always wanted to learn how to sail and "The Craft of Sail" sounds like a wonderful addition to my reading stack for this fall and winter! I'll nestle it in between Hornblower and Aubrey & Maturin books ;o) -------- Oscar Zuniga Medford, OR Air Camper NX41CC "Scout" A75 power Read this topic online here: http://forums.matronics.com/viewtopic.php?p=446986#446986 ------------------------------------------------------------------------------------- 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.