---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Tue 09/04/07: 18 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:33 AM - Strut mounted Airspeed Indicator (Terry Hall) 2. 07:04 AM - new Texas Piet (Oscar Zuniga) 3. 07:07 AM - Pietenpol kids (Oscar Zuniga) 4. 07:13 AM - Re: tail gear collapse (Jeff Boatright) 5. 07:33 AM - Engine question (Oscar Zuniga) 6. 07:35 AM - Re: tail gear collapse (Bill Church) 7. 07:38 AM - Re: Engine question...... (MICHAEL SILVIUS) 8. 07:47 AM - Re: tail gear collapse (Rob Stapleton, Jr.) 9. 08:33 AM - welding (Douwe Blumberg) 10. 10:43 AM - Back at it. (Tom Winter) 11. 12:05 PM - Re: Engine question (Patrick Panzera) 12. 02:59 PM - Re: tail gear collapse (Barry Davis) 13. 04:08 PM - Re: Pietenpol kids (Rcaprd@aol.com) 14. 04:13 PM - Re: tail gear collapse (Jeff Boatright) 15. 04:40 PM - Re: Engine question...... (Ryan Michals) 16. 07:08 PM - Ron & Patricia Hollmer's Piet (Oscar Zuniga) 17. 09:53 PM - Re: Pietenpol kids (Tim Willis) 18. 11:47 PM - Re: Ron and Patricis Hollmer's Piet (Catdesigns) ________________________________ Message 1 _____________________________________ Time: 06:33:19 AM PST US From: "Terry Hall" Subject: Pietenpol-List: Strut mounted Airspeed Indicator Hello everyone, Here is a copy of the strut mounted airspeed indicator that was dicussed over the weekend. I was able to obtain it last year from another source. It appears that it is making the Internet rounds. I have built one for my Sky Scout, and it does seem to work when I hold it outside a car window. Regards to all and happy building, Terry Hall ________________________________ Message 2 _____________________________________ Time: 07:04:18 AM PST US From: "Oscar Zuniga" Subject: Pietenpol-List: new Texas Piet I had an email from Ron and Patricia Hollmer in Corpus Christi, TX- they now own Howard Henderson's Ford A-powered Piet and keep it at Rockport, TX. I added them to the Frappr site. Oscar Zuniga San Antonio, TX mailto: taildrags@hotmail.com website at http://www.flysquirrel.net _________________________________________________________________ Share your special parenting moments! http://www.reallivemoms.com?ocid=TXT_TAGHM&loc=us ________________________________ Message 3 _____________________________________ Time: 07:07:15 AM PST US From: "Oscar Zuniga" Subject: Pietenpol-List: Pietenpol kids I received a nice laminated photo of the "Piet kids" in the mail last week. I think they sent out photos to everyone who contributed to their restoration project and trip to Oshkosh. Very encouraging to see young people carring the 75 year old design into the 21st century and beyond! Who knows; there might be a daydreaming young student doodling in class right now, working on a biodiesel Piet or a hydrogen Piet or something else like that, even as we speak... Oscar Zuniga San Antonio, TX mailto: taildrags@hotmail.com website at http://www.flysquirrel.net _________________________________________________________________ Test your celebrity IQ. Play Red Carpet Reveal and earn great prizes! http://club.live.com/red_carpet_reveal.aspx?icid=redcarpet_hotmailtextlink2 ________________________________ Message 4 _____________________________________ Time: 07:13:45 AM PST US From: Jeff Boatright Subject: RE: Pietenpol-List: tail gear collapse Peter, Thanks for the reply. I finally had a chance to go through the list archives. There is one posting that suggests using 0.049, specifically stating that he found that 0.035 wasn't strong enough. I think I may have just confirmed that! (Well, for MY bouncey landings, anyway). Jeff At 12:28 PM +1000 9/4/07, Peter W Johnson wrote: > > >Jeff, > >5/8 inch 20 gauge (0.035")??. You will need about 34 inches. > >Cheers > >Peter >Wonthaggi Australia >http://www.cpc-world.com > > >-----Original Message----- >From: owner-pietenpol-list-server@matronics.com >[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Jeff >Boatright >Sent: Tuesday, 4 September 2007 12:18 PM >To: pietenpol-list@matronics.com >Subject: Re: Pietenpol-List: tail gear collapse > > >Does anyone know the tubing specs for this application? The diameter >of the tubes use previously is 5/8", but I can't tell what the >thickness is. > >Thanks, > >Jeff > ________________________________ Message 5 _____________________________________ Time: 07:33:38 AM PST US From: "Oscar Zuniga" Subject: Pietenpol-List: Engine question Indeed some aircraft test setups have been made using the Honda Goldwing engine (not on a Piet) and it's a nice engine, very available, but the thrust output shaft is not on the engine centerline. The writeup is in Contact! magazine and is available from Contact!. There are so many nice little inline water-cooled fours available out of cars these days, but as Tim mentioned... you'd be blazing new trails every time you adapt a new one. And most (all?) would require a redrive to put the power in the right RPM range for our props and speeds. Oscar Zuniga San Antonio, TX mailto: taildrags@hotmail.com website at http://www.flysquirrel.net _________________________________________________________________ Gear up for Halo 3 with free downloads and an exclusive offer. http://gethalo3gear.com?ocid=SeptemberWLHalo3_MSNHMTxt_1 ________________________________ Message 6 _____________________________________ Time: 07:35:58 AM PST US Subject: RE: Pietenpol-List: tail gear collapse From: "Bill Church" Jeff, I haven't built my tail gear yet (I would first need a fuselage to mount it on), but one thing that I remember reading regarding tailgear construction was the following: http://www.mykitplane.com/Planes/photoDisplay.cfm?PhotoName=Mvc-001s.jpg &PhotoID=93 Ken Perkins builds and sells these really nice tailgear assemblies (at least the one on his Air Camper looks really nice). Don't know what the price is, or if it would fit your application as-is. Note that Ken says he uses .049" wall thickness to construct his gear, as he found that .035" as shown in the plans is too light for use with a tailwheel. (It's probably adequate for a tailskid, though). Bill C. -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Jeff Boatright Sent: Monday, September 03, 2007 10:31 PM Subject: Re: Pietenpol-List: tail gear collapse Does anyone know the tubing specs for this application? The diameter of the tubes use previously is 5/8", but I can't tell what the thickness is. Thanks, Jeff ________________________________ Message 7 _____________________________________ Time: 07:38:45 AM PST US From: "MICHAEL SILVIUS" Subject: Re: Pietenpol-List: Engine question...... Some of the fellows in the rotary world have been working on a 1/2 Mazda 13B engine to fit LSA category AC. That is a single rotor Wankel made out of a Mazda RX7 13B rotary. Estimated power at 100 hp and complete weight under 200lbs. Don't know if any have flown yet but it looks promising as you can use the more inexpensive Hirth redirve instead of the more costly RWS unit. Off the shelf components such as shortened E-shaft (crank) Peripheral port rotor housing and aluminum end housing are available from the rotary racing suppliers. The fellow in the attached pictures cooked up his own single rotor Wankel out of junkyard parts. Should make for a nice set up for an Aircamper. michael in maine ________________________________ Message 8 _____________________________________ Time: 07:47:33 AM PST US From: "Rob Stapleton, Jr." Subject: RE: Pietenpol-List: tail gear collapse Speaking of tail assembly I have the same type "V" and a solid rubber wheel, is there a modification to make this castoring wheel stearable? I haven't installed it yet and am looking at how to rig this up? Rob -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Bill Church Sent: Tuesday, September 04, 2007 6:36 AM Subject: RE: Pietenpol-List: tail gear collapse Jeff, I haven't built my tail gear yet (I would first need a fuselage to mount it on), but one thing that I remember reading regarding tailgear construction was the following: http://www.mykitplane.com/Planes/photoDisplay.cfm?PhotoName=Mvc-001s.jpg &PhotoID=93 Ken Perkins builds and sells these really nice tailgear assemblies (at least the one on his Air Camper looks really nice). Don't know what the price is, or if it would fit your application as-is. Note that Ken says he uses .049" wall thickness to construct his gear, as he found that .035" as shown in the plans is too light for use with a tailwheel. (It's probably adequate for a tailskid, though). Bill C. -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Jeff Boatright Sent: Monday, September 03, 2007 10:31 PM Subject: Re: Pietenpol-List: tail gear collapse Does anyone know the tubing specs for this application? The diameter of the tubes use previously is 5/8", but I can't tell what the thickness is. Thanks, Jeff ________________________________ Message 9 _____________________________________ Time: 08:33:44 AM PST US From: "Douwe Blumberg" Subject: Pietenpol-List: welding Guys, In our efforts to become better welders, this might help. I've read about it, and have been using it when I TIG, especially metals that are very sensative to contamination (aluminum for example) but it should help with gas welding too. In the interest of keeping contamination to your rod minimal, keep the rod tip in the gas envelope between "dabs", or until the end isn't red anymore. Many of us do this naturally, but many of us also probably pull it completely out and forget about it until we need it again. Douwe ________________________________ Message 10 ____________________________________ Time: 10:43:38 AM PST US From: Tom Winter Subject: Pietenpol-List: Back at it. Yesterday I took a strip of wood five and one half foot long strip, 1/4'x1/2', and nails and used the strip for a french curve, along the points I'd already measured out for the wing rib. Like modeling!! Pine board instead of homosote, nails instead of pins, spruce instead of balsa! If my spruce "french curve" did not hit ALL the points spot-on, I didn't worry: the original curve followed the way a strip of wood could be bent, so I figgered the wood knew more about it than my measured points. Cut out the full size paper rib, and spray-painted around it on the board. Two sessions and I've nearly got the rib jig. Much more relaxing than wrenching on the engines. (Hammer and billet on kerosene-soaked pistons!) ________________________________ Message 11 ____________________________________ Time: 12:05:28 PM PST US From: "Patrick Panzera" Subject: RE: Pietenpol-List: Engine question > There are so many nice little inline water-cooled fours available out of > cars these days, but as Tim mentioned... you'd be blazing new trails every > time you adapt a new one. And most (all?) would require a redrive to put > the power in the right RPM range for our props and speeds. On paper a Corvair needs a redrive to extract its full potential, but the beauty of it is that when you elect to leave some HP on the table and accept a lower output by going direct drive and limiting the revs accordingly, you add simplicity and longevity. I'm sure there are any number of lightweight import (water-cooled, DOHC, 16V etc.) four bangers that make 125-145+ ponies at 6K RPM, that probably could make 85HP+ @ 3250 RPM direct drive and power a Piet nicely. BUT!!! as mentioned, the builder would be a pioneer. Pat ________________________________ Message 12 ____________________________________ Time: 02:59:24 PM PST US From: "Barry Davis" Subject: Re: Pietenpol-List: tail gear collapse You could bring it to the Big Piet Factory next Monday night . I'm sure it can be fixed. Barry ----- Original Message ----- From: "Jeff Boatright" Sent: Monday, September 03, 2007 6:19 PM Subject: Pietenpol-List: tail gear collapse > Gang, > > I broke the Piet's tail gear this afternoon - broke at the welds of > the "V", just ahead of the vertical spring. The 30 year old welds > couldn't take the pounding that occurs with one of my multi-hop > landings. > > Does anyone know of a gear that can be bought? The current gear uses > the two steel tubes in a V as per the later plans (I think) with a > spring running vertically at the point of the "V". What we have now > is probably not repairable. I've attached photos prior to the > collapse. They're not very good; I'll try to upload better ones later. > > We have four fly-ins starting 10 days from now that I'd really like > to make if at all possible. One of them my Dad is coming into town > specifically to ride in the Piet to. I'm open to any suggestions > about how to beg, borrow, or buy a complete "V". Note that the > tailwheel and hardware is fine; it's just the "V" that is knackered. > In the mean time, I'm ordering tubing from AS&S to make a new one. > > Thanks, > > Jeff ________________________________ Message 13 ____________________________________ Time: 04:08:29 PM PST US From: Rcaprd@aol.com Subject: Re: Pietenpol-List: Pietenpol kids Hey !! I received that picture of the 'Pietenpol Kids' too !! You're right on Oscar, about our next generation of Pietenpol Builders. There is also a good article about them in the Sport Aviation that I got today. No doubt these kids are much more confident about any endeavor they choose in their life, and I would bet a dollar to a doughnut that several of them will someday build a Pietenpol of their own !! >From Trees & Rags to Stick & Rudder Pietenpols are Forever !! http://discover.aol.com/memed/aolcom30tour ________________________________ Message 14 ____________________________________ Time: 04:13:26 PM PST US From: Jeff Boatright Subject: Re: Pietenpol-List: tail gear collapse Barry, Much, much thanks for the kind offer. My hangar mate (who was in the front cockpit when I took the Piet on Mr. Toad's Wild Ride) is going to take a crack it first. If we can't figure it out by next Monday, you might just see me pull up with busted gear in hand and tail between my legs! Jeff At 5:58 PM -0400 9/4/07, Barry Davis wrote: > >You could bring it to the Big Piet Factory next Monday night . I'm >sure it can be fixed. >Barry > -- _____________________________________________________________ Jeffrey H. Boatright, PhD Associate Professor, Emory Eye Center, Atlanta, GA, USA Senior Editor, Molecular Vision, http://www.molvis.org/molvis mailto:jboatri@emory.edu ________________________________ Message 15 ____________________________________ Time: 04:40:02 PM PST US From: Ryan Michals Subject: Re: Pietenpol-List: Engine question...... One of the attractive features of the Piet for me was the fact that it uses a low revving engine. The sound of an old Ford or Continental puttin' along adds to the whole experiance, rather than somthin' on the nose screeming like it may blow apart at any moment (no offense ultralight guys). Ryan --------------------------------- Choose the right car based on your needs. Check out Yahoo! Autos new Car Finder tool. ________________________________ Message 16 ____________________________________ Time: 07:08:38 PM PST US From: "Oscar Zuniga" Subject: Pietenpol-List: Ron & Patricia Hollmer's Piet I've sent a picture of Ron & Patricia's Piet to Chris Tracy for uploading to his excellent photo archive site and I'm sure he'll let us know when he has a chance to upload it. It's a beauty. Very classic lines... Ford Model A engine that appears to run the conversion just as Messrs. Pietenpol and Hoopman's drawings show. It has jury struts (vertical) but no horizontal stiffener between them. It has X-brace wires in the passenger side cabane bay, no cabane struts. V-type tailwheel with the spring per plans but with a tailwheel added rather than a skid. Center section fuel tank per plans. A very nice laminated semi-scimitar or paddle type prop, obviously hand-carved or at least made to order. The photo seems to show that there is either no cover on the section of the top boot cowl where the instruments go, or else it is hinged down in the picture because the rear of the instruments can be seen. The tail surfaces have bendable (fixed) aluminum trim tabs on both rudder and elevator and both are deflected, indicating that there were some trim issues. Classic wooden main gear legs, solid axle with bungee suspension, and looks like no brakes of any kind. He reports that he was surprised at how well it performs with the Ford A engine (but admittedly he's located at sea level and there are no forests there than I know of!), has about 15 hours in it and everybody he gives rides to loves it, but it flies a bit heavy on the right wing and apparently does not have threaded fork clevises on the wing strut ends to allow adjusting the wing incidence to wash it out a bit to take out the heaviness. He's looking into that. I've got to go visit these folks... Oscar Zuniga San Antonio, TX mailto: taildrags@hotmail.com website at http://www.flysquirrel.net _________________________________________________________________ Get a FREE small business Web site and more from Microsoft Office Live! ________________________________ Message 17 ____________________________________ Time: 09:53:43 PM PST US From: Tim Willis Subject: Re: Pietenpol-List: Pietenpol kids I got my pic tonight. I am impressed by the way the kids look, their enthusiasm and readiness, and by the plane. It's great that they are getting attention, sponsorship, and personal development. I am glad we are a part of that. Thanks to all involved in MT. Tim in central TX -----Original Message----- >From: Rcaprd@aol.com >Sent: Sep 4, 2007 6:07 PM >To: pietenpol-list@matronics.com >Subject: Re: Pietenpol-List: Pietenpol kids > >Hey !! I received that picture of the 'Pietenpol Kids' too !! You're right >on Oscar, about our next generation of Pietenpol Builders. There is also a >good article about them in the Sport Aviation that I got today. No doubt these >kids are much more confident about any endeavor they choose in their life, and >I would bet a dollar to a doughnut that several of them will someday build a >Pietenpol of their own !! > >>From Trees & Rags > to >Stick & Rudder > >Pietenpols are Forever !! > > >http://discover.aol.com/memed/aolcom30tour ________________________________ Message 18 ____________________________________ Time: 11:47:04 PM PST US From: "Catdesigns" Subject: Pietenpol-List: RE: Ron and Patricis Hollmer's Piet Oscar and All, The picture can be found at http://westcoastpiet.com/howard_henderson_444hh.htm it's the one on the very bottom. Oscar, I see brakes. They look to be small, perhaps 4-inch, drum brakes. If you look closely I think he has pins on the axel like Mike Cuy. Grant MacLaren has a great write-up on this plane at http://users.aol.com/bpabpabpa/n444mh1.html Chris Tracy Sacramento, Ca Website at http://www.Westcoastpiet.com ------------------------------------------------------------------------------------- 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.