---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Wed 03/08/17: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:07 AM - please post a pic (Douwe Blumberg) 2. 05:20 AM - Re: New piet builders forum (womenfly2) 3. 05:45 AM - Re: Re: New piet builders forum (Scott Knowlton) 4. 08:30 AM - Re: Re: Vi Kapler hinges ((null) raykrause) 5. 04:17 PM - Re: New piet builders forum (pjb) 6. 04:18 PM - Re: New piet builders forum (pjb) 7. 05:40 PM - Re: OT testimonial for Schweis bifold doors (dgaldrich) 8. 05:46 PM - Re: Re: OT testimonial for Schweis bifold doors (Steven Dortch) 9. 07:53 PM - Re: Vi Kapler hinges (taildrags) ________________________________ Message 1 _____________________________________ Time: 05:07:28 AM PST US From: "Douwe Blumberg" Subject: Pietenpol-List: please post a pic Hey all, Just started a thread on the new BPA webpage. in the photo section under "non-historical" air camper & Sky Scout photos. let's all start posting photos of our finished airplanes there along with some info about it and over time it should become a real fascinating resource and inspiration for all. Douwe ________________________________ Message 2 _____________________________________ Time: 05:20:17 AM PST US Subject: Pietenpol-List: Re: New piet builders forum From: "womenfly2" Joined! ... KAP :D -------- Read this topic online here: http://forums.matronics.com/viewtopic.php?p=467005#467005 ________________________________ Message 3 _____________________________________ Time: 05:45:10 AM PST US From: Scott Knowlton Subject: Re: Pietenpol-List: Re: New piet builders forum Me too. Scott K > On Mar 8, 2017, at 8:23 AM, womenfly2 wrote: > > > Joined! ... > > KAP :D > > -------- > > > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=467005#467005 > > > > > > > > > ________________________________ Message 4 _____________________________________ Time: 08:30:15 AM PST US From: "(null) raykrause" Subject: Re: Pietenpol-List: Re: Vi Kapler hinges Oscar, I did not see your write up on the effect of the weight of the hinges on the CG that was referenced in this series. Could you send it to me? I really enjoy your writings. I'm sure I understand what it must have said because I'm dealing with the CG of my SkyScout....fun! Thanks, Ray Krause Sent from my iPad > On Mar 7, 2017, at 9:24 PM, taildrags wrote: > > > Jon; > > I will admit to using the example of CG impact of the weight of the complete set of tail surface hinges vs. fuel in the tank for dramatic effect, but it does drive home the point. No matter what a builder uses for hinges back there, it's going to weigh something but you can at least be aware of what's going out on the tail and try to keep it light. On my airplane, the approximate moment arm from the datum to the tail surface hinge location is about +164" and the moment arm from the datum to the fuel location in the nose is about -4" so you can see that there is about a 40:1 advantage to anything that goes out on the tail compared to things that go out in front of the wing. Pretty much anything you do in the front cockpit, landing gear, or rear cockpit instrument panel will not affect the CG much at all but will affect the gross weight. If you have your fuel in the wing centersection, the CG will not shift noticeably with fuel burn. Whatever you do with a passenger or wi! > th baggage that you place in the front cockpit will not affect CG but will affect gross weight. The front cockpit is a magical area... things that you put in it don't affect the CG, but getting anything into it is a magic trick in itself ;o) > > In my airplane (16 gal. nose tank), after I fuel up I have to hold back stick for at least the first hour after topping off. For the second hour or so, everything is nicely balanced because fuel has burned off and the slight nose heaviness eases off and the altimeter doesn't seem to want to keep unwinding on me. After that, I don't even notice the stick pressure because I'm too focused on the (float-and-rod) fuel gauge and am looking for a rest stop ;o) > > -------- > 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=466991#466991 > > > > > > > > > ________________________________ Message 5 _____________________________________ Time: 04:17:43 PM PST US Subject: Pietenpol-List: Re: New piet builders forum From: "pjb" Me too ! Patricia Read this topic online here: http://forums.matronics.com/viewtopic.php?p=467064#467064 ________________________________ Message 6 _____________________________________ Time: 04:18:15 PM PST US Subject: Pietenpol-List: Re: New piet builders forum From: "pjb" Me too ! Patricia Read this topic online here: http://forums.matronics.com/viewtopic.php?p=467065#467065 ________________________________ Message 7 _____________________________________ Time: 05:40:25 PM PST US Subject: Pietenpol-List: Re: OT testimonial for Schweis bifold doors From: "dgaldrich" Hey Steve I too have a Miracle Span hangar with their in-house supplied door. A previous owner did the same thing you did and it trashed the gearbox so you can consider yourself lucky. I agree that Schweiss is an excellent company to deal with. They offered me a retrofit kit to convert my door to the later straps in lieu of the cables. Haven't decided if it's worth the $$$ yet. Dave Read this topic online here: http://forums.matronics.com/viewtopic.php?p=467072#467072 ________________________________ Message 8 _____________________________________ Time: 05:46:39 PM PST US From: Steven Dortch Subject: Re: Pietenpol-List: Re: OT testimonial for Schweis bifold doors What is the cost of the conversion? Not on this years list but perhaps. I hear they are much smoother. On Wed, Mar 8, 2017 at 7:40 PM, dgaldrich wrote: > dgaldrich@embarqmail.com> > > Hey Steve > > I too have a Miracle Span hangar with their in-house supplied door. A > previous owner did the same thing you did and it trashed the gearbox so you > can consider yourself lucky. I agree that Schweiss is an excellent company > to deal with. They offered me a retrofit kit to convert my door to the > later straps in lieu of the cables. Haven't decided if it's worth the $$$ > yet. > > Dave > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=467072#467072 > > -- Blue Skies, Steve D ________________________________ Message 9 _____________________________________ Time: 07:53:33 PM PST US Subject: Pietenpol-List: Re: Vi Kapler hinges From: "taildrags" Ray; my comment about the weight of the hinges is on the "how the hinges are made" webpage that I posted the link to. Down at the bottom of that page is a picture of a finished pair of the hinges with this caption: "... and here, after some 396 separate hand operations, is a pair of hinges. Approximate weight of this pair of hinges, minus the mounting screws and pivot pin hardware, is 0.64 oz, or about 0.38 lb for the complete set of 9 pairs. Since all of this weight is aft of the CG and on a very long moment arm, keeping these parts light is important. Believe it or not, the moment created by this 1/3 of a pound for a set of hinge castings out at the tail of my Air Camper is the same as that created by 3 gallons of fuel (18 lbs) in the nose tank. Use thin AN washers on the clevis pins, don't use pins that are any longer than necessary, and clip the excess leg lengths off the cotter pins before setting them." -------- 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=467087#467087 ------------------------------------------------------------------------------------- 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.