Brodhead Pietenpol Association

Original Posted By: Brian Kenney
NINETEEN GALLONS? You can fit that much in your Tiger Moth-ish center sectionwing tank, Terry? Wow. I tried calculating the approximate volume of a classic-styledAir Camper center section tank (no deHavilland hump) by using AutoCAD.With both the front and the back of the tank sloped to a center drain, it cameout less than 12 gallons if I remember correctly. If you're able to get 19gallons and you fly a small Continental, you'll be able to circumnavigate theearth, unrefueled ;o) Throttle it back to 55% power and you can loiter at 500'for about six hours and still have 30 minute VFR fuel reserves!--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Re: How to figure the volume of your center sectionfuel tank

Original Posted By: Ray Krause
I have 17.2 US gal in my 65 hp Piet the capacity comes in handy because most tripsyou can go there and back with the fuel you can carry. It takes disciplinenot to fill it all the time. That's a lot of weight. Sent from my iPad> On Feb 8, 2014, at 3:00 PM, "taildrags" wrote:> > > NINETEEN GALLONS? You can fit that much in your Tiger Moth-ish center sectionwing tank, Terry? Wow. I tried calculating the approximate volume of a classic-styledAir Camper center section tank (no deHavilland hump) by using AutoCAD.With both the front and the back of the tank sloped to a center drain, itcame out less than 12 gallons if I remember correctly. If you're able to get19 gallons and you fly a small Continental, you'll be able to circumnavigatethe earth, unrefueled ;o) Throttle it back to 55% power and you can loiter at500' for about six hours and still have 30 minute VFR fuel reserves!> > --------> Oscar Zuniga> Medford, OR> Air Camper NX41CC "Scout"> A75 power> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 323#418323> > > > > > > > > > ________________________________________________________________________________

Original Posted By: glenschweizer(at)yahoo.com
Oscar,Thanks for your opinion, which I respect highly. I did buy a kit of the Cobra torchesbecause, as you said, they make it look easy. When he welded the 4130 for me, I took it home and beat on it a little with the hammer, it did not comeapart. Tomorrow I will bisect it and see what the welds look like on the inside.The mild steel he welded had good penetration, but it was thin. I will trysome .090 and see how it works. Not sure my regulators will deliver 4PSI. Itis all research! My thought was that the Cobra would be about the same costas getting all the setup for the smaller standard torches. But if I have to getnew regulators, I will be spending even more money! Oh well, it's nothing moneycan't fix!Thanks,Ray KrauseSent from my iPad> On Feb 7, 2014, at 8:16 AM, "tools" wrote:> > > These things are really controversial... However, I like mine. > > I haven't really figured out how to use them correctly though. Like everything,the demos are a bit misleading, but only in they make it seem easier thanit is. However, they're CLEARLY doing it! And I really believe it'll do thingsa regular OA torch won't (though someone REALLY skilled could prove that wrongI suppose).> > Like all OA sets, super versatile. I did weld some 4130 once early on and madethe MOST BEAUTIFUL looking welds ever... then tried some testing on them. Turned out there was NO PENETRATION at all. Really weird. > > So, while I also recommend them, I would also recommend really spending sometime with them until you really figure them out. Like ALL tools, they requireskill. There's nothing magic about them. I think most of the naysayers arefolks who are good at OTHER OA torches and figure if they can't make these work,they're smoke and mirrors. When it's probably more a case of they just don'tknow how to make THESE torches work.> > They really are super nice guys who will do their level best to get you going.I also recommend good regulators that'll do well at lower levels. Like mostchinese stuff, it's a matter of hit and miss, and longevity. Good regulatorsout of the gate will most likely save a lot of frustration.> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 282#418282> > > > > > > > > > ________________________________________________________________________________

Original Posted By: glenschweizer(at)yahoo.com
Hi TerryThanks for the link Ihave all of Uncle Tony's books. Like a bonehead, I just askedinstead of asking our uncle. ThanksGlenSent from my iPhone> On Feb 6, 2014, at 6:58 PM, "jarheadpilot82" wrote:> > > Glen,> > Here is a link to a Tony Bingelis article about aluminum fuel tanks-> > http://members.eaa.org/home/homebuilder ... Tank_.html> > Hopefully, it can answer a lot of your questions.> > --------> Semper Fi,> > Terry Hand> Athens, GA> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 247#418247> > > > > > > > > > ________________________________________________________________________________

Original Posted By: "mdsalern(at)yahoo.com"
Hi RayWhen welding anything,the strength of that weld is going to depend on many factors.The heat has to be suficient to melt all material to a temp Witch allows them to flow into one another(100 percent penetration). Lack of porosityis also critical. That is controlled with proper gas regulation and positionwithin the flame cone where the. Welding takes place. The low volume torchesmight do very well for thinner material but maybe not so well on thickerstuff.When you. Test your welds the material welded should break before the weld afterthAt. Cut or file the weld so that you can do a magnified inspection of yourwelds. Short of. X-ray that's been the most reliable method I've found to reallystudy them damned welds. Practice inspect practice practiceSent from my iPhone> On Feb 7, 2014, at 8:26 PM, Ray Krause wrote:> > > Oscar,> > Thanks for your opinion, which I respect highly. I did buy a kit of the Cobratorches because, as you said, they make it look easy. When he welded the 4130for me, I took it home and beat on it a little with the hammer, it did notcome apart. Tomorrow I will bisect it and see what the welds look like on theinside. The mild steel he welded had good penetration, but it was thin. I willtry some .090 and see how it works. Not sure my regulators will deliver 4PSI.It is all research! My thought was that the Cobra would be about the same costas getting all the setup for the smaller standard torches. But if I have toget new regulators, I will be spending even more money! Oh well, it's nothingmoney can't fix!> > Thanks,> > Ray Krause> > Sent from my iPad> >> On Feb 7, 2014, at 8:16 AM, "tools" wrote:>> >> >> These things are really controversial... However, I like mine. >> >> I haven't really figured out how to use them correctly though. Like everything,the demos are a bit misleading, but only in they make it seem easier thanit is. However, they're CLEARLY doing it! And I really believe it'll do thingsa regular OA torch won't (though someone REALLY skilled could prove that wrongI suppose).>> >> Like all OA sets, super versatile. I did weld some 4130 once early on and madethe MOST BEAUTIFUL looking welds ever... then tried some testing on them.Turned out there was NO PENETRATION at all. Really weird. >> >> So, while I also recommend them, I would also recommend really spending sometime with them until you really figure them out. Like ALL tools, they requireskill. There's nothing magic about them. I think most of the naysayers arefolks who are good at OTHER OA torches and figure if they can't make these work,they're smoke and mirrors. When it's probably more a case of they just don'tknow how to make THESE torches work.>> >> They really are super nice guys who will do their level best to get you going.I also recommend good regulators that'll do well at lower levels. Like mostchinese stuff, it's a matter of hit and miss, and longevity. Good regulatorsout of the gate will most likely save a lot of frustration.>> >> >> >> >> Read this topic online here:>> >> http://forums.matronics.com/viewtopic.p ... 282#418282> > > > > ________________________________________________________________________________Date: Fri, 7 Feb 2014 21:55:44 -0800 (PST)