---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Tue 08/12/08: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:02 PM - tail wheel (Marc Davis) 2. 12:10 PM - Re: tail wheel (Phillips, Jack) 3. 01:59 PM - Re: From print to jig...how? (Robert Butsch) 4. 06:15 PM - Re: From print to jig...how? (Ryan Mueller) 5. 11:19 PM - Re: tail wheel (Marc Davis) ________________________________ Message 1 _____________________________________ Time: 12:02:36 PM PST US From: Marc Davis Subject: Pietenpol-List: tail wheel Has anyone figured the weight of a standard leaf spring type tail wheel as compared to a Piet style tail skid converted to a tail wheel. I know there are many vari ations but I'm trying to decide if I should keep my current leaf spring or build a the original style. I n eed to improve my CG picture. Marc _________________________________________________________________ Reveal your inner athlete and share it with friends on Windows Live. http://revealyourinnerathlete.windowslive.com?locale=en-us&ocid=TXT_TAG LM_WLYIA_whichathlete_us ________________________________ Message 2 _____________________________________ Time: 12:10:46 PM PST US Subject: RE: Pietenpol-List: tail wheel From: "Phillips, Jack" Marc, like most things the answer is: "It depends". It depends on how many leaves you have in your leaf spring, how long you make the A-Arm, what diameter tubing and what wall thickness. In my case it saved about 1.5 lbs. I also saved weight by going to the Aircraft Spruce "Homebuilders Special" 4" tailwheel instead of the 6" Scott that I started with. Jack Phillips NX899JP _____ From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Marc Davis Sent: Tuesday, August 12, 2008 3:02 PM Subject: Pietenpol-List: tail wheel Has anyone figured the weight of a standard leaf spring type tail wheel as compared to a Piet style tail skid converted to a tail wheel. I know there are many variations but I'm trying to decide if I should keep my current leaf spring or build a the original style. I need to improve my CG picture. Marc _____ Reveal your inner athlete and share it with friends on Windows Live. Share now! _________________________________________________ This message is for the designated recipient only and may contain privilege d, proprietary or otherwise private information. If you have received it in error, please notify the sender immediately and delete the original. Any other use of the email by you is p rohibited. Dansk - Deutsch - Espanol - Francais - Italiano - Japanese - Nederlands - N orsk - Portuguese ________________________________ Message 3 _____________________________________ Time: 01:59:31 PM PST US Subject: Pietenpol-List: Re: From print to jig...how? From: "Robert Butsch" Mike et al: Regarding the suggestion that you have a copy of your rib drawing made at Kinko's and having it laminated sounds like a great idea. However, let me tell you what can happen if you do. I lofted, very carefully, the GA30U-612 airfoil and took it to a professional engineering firm to have a few copies made. I told them that it must be an exact copy since it would be used on a building jig and the spar locations must be on the mark. I went to pick up the copies and laid out the copy over the original. Registering the leading edge on both and moving left to right, I found that within about 14 inches the copy started to stray from the original. between the spar locations the copy was off by a quarter inch. I called for the manager who said he would do the prints on another digital printer and it should be fine. They did it again and once again we checked for accuracy. It was better this time but the spar locations were still off by one eighth of an inch. I then decided that I would try Kinko's and they assured me they could make an exact copy. We tried it and it was way worse than the engineering blueprint company. It would not be such a big deal if it were not for the spar locations. I finally decided to just use the original under thin clear plastic and am taking very good care of the jig so as to not harm my original. If you decide to try the Kinko's copy routine, just be sure to put the original and the print on a light table to check for accuracy. Another suggestion would be to simply lay down a bunch of carbon paper on the jig board and trace the outline and also use a straight edge for the intercostals and spar locations. Have fun. Bob -------- Robert Butsch EAA 66532 Pietenpol NX45BB (Alpha stage) In Indy IN Read this topic online here: http://forums.matronics.com/viewtopic.php?p=198217#198217 ________________________________ Message 4 _____________________________________ Time: 06:15:09 PM PST US From: "Ryan Mueller" Subject: Re: Pietenpol-List: From print to jig...how? The simplest way to end up with an undamaged full size Riblett plan, I would think, would be to just buy two prints. Another $10 and you can have one print on the jig, and one in perfect condition for reference or what have you. Ryan On Mon, Aug 11, 2008 at 7:45 PM, Michael Perez wrote: > > My mistake, what I am asking is: is there a way to easily transfer the plan > onto the jig, and keep the original plan intact. I have heard how to simply > make a copy is not always good, wondering if there is any other way. The > making holes and connecting the dots is a way I haven't thought of. I guess > once the jig is made and proven, we don't need the plan, but I would like to > try and salvage mine. > > It seems the easiest is to tape it down, cover with plastic, build. > ________________________________ Message 5 _____________________________________ Time: 11:19:10 PM PST US From: Marc Davis Subject: RE: Pietenpol-List: tail wheel Thanks Jack On West Coast Piet I see both setups on your plane. Which way did you switch? Thanks Marc Subject: RE: Pietenpol-List: tail wheelDate: Tue=2C 12 Aug 2008 15:10:18 -0 400From: Jack.Phillips@cardinalhealth.comTo: pietenpol-list@matronics.com Marc=2C like most things the answer is: =93It depends=94. It depends on h ow many leaves you have in your leaf spring=2C how long you make the A-Arm =2C what diameter tubing and what wall thickness. In my case it saved abou t 1.5 lbs. I also saved weight by going to the Aircraft Spruce =93Homebuil ders Special=94 4=94 tailwheel instead of the 6=94 Scott that I started wit h. Jack Phillips NX899JP From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-lis t-server@matronics.com] On Behalf Of Marc DavisSent: Tuesday=2C August 12 =2C 2008 3:02 PMTo: pietenpol-list@matronics.comSubject: Pietenpol-List: ta il wheel Has anyone figured the weight of a standard leaf spring type tail wheel as compared to aPiet style tail skid converted to a tail wheel. I know there are many variations but I'm trying to decide if I should keep my current le af spring or build a the original style. I need to improve my CG picture. Marc Reveal your inner athlete and share it with friends on Windows Live. Share now! http://www.matronics.com/contribution ______________________________ ___________________ This message is for the designated recipient only and may contain privilege d=2C proprietary or otherwise private information. If you have received it in error=2C pleas e notify the sender immediately and delete the original. Any other use of the email by you is p rohibited. Dansk - Deutsch - Espanol - Francais - Italiano - Japanese - Nederlands - N orsk - Portuguese _________________________________________________________________ Got Game? 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