Original Posted By: "Harvey Plummer"
Subject: Re: Pietenpol-List: TC Piet progressThank you Ray. In fact, yes, I did. But there are other factors: I am amechanical engineer and a (good) practical mechanic. The welds were made byone of my student technicians (the best actually). I used to build violinshence the woodwork. I have to admit that I had to rework some parts,because I let my woodworking apprentice homebuilders do some of the job.But that's life. You learn from mistakes, don't you?=8B They got much betternow, so I (sometimes we) cqan work faster. Since I am a full time employeeat the age 67, I only have weekends but metal work is done where I work, itis a bonus.Semih2015-10-19 7:40 GMT+03:00 Ray Krause :> Beautiful welding and super nice wood work. But maybe you have spent too> much time building model airplanes!>> Ray Krause> Covering last section of SkyScout wing.>>> Sent from my iPad>> > On Oct 18, 2015, at 9:23 AM, oldbird wrote:> >> >> > I haven't been around for a while and here is the final condition of the> fuselage. Started to look more like a Piet. In the meanwhile, I finished> the rudder pedals and elevator bellcrank (metal work).> >> >> >> >> > Read this topic online here:> >> > http://forums.matronics.com/viewtopic.p ... 046#448046> >> >> >> >> > Attachments:> >> > http://forums.matronics.com//files/img_2940_101.jpg> > http://forums.matronics.com//files/img_2975_145.jpg> >> >> >> >> ===================================> ===================================> ===================================> ===================================> >> >> >>> >===========>> http://www.matronics.com/Navigator?Piet ... ==========> http://forums.matronics.com===========> http://www.matronics.com/contribution===========>> >-- Semih Oksay________________________________________________________________________________Subject: Pietenpol-List: Fuel Tank, Size/Location
Pietenpol-List: Fuel Tank, Size/Location
Original Posted By: "Cuy, Michael D. (GRC-LME0)[Vantage Partners, LLC]"
Thanks guys for all the previous info on a nose tank.Now the question is will I have enough pressure for gravity feed to the Carb? I am planning to have a single seat Pietenpol. I would like to locate thenose tank where the passenger seat opening would be. I am thinking an oval shapedtank 16" deep at the center and about 18" long. It will be located with approximately8" of the tank above the longerons and 8" below. With the fuel valveat the rear of the tank will there be enough pressure for fuel to flow tothe carburator on a Corvair engine with 2 gallons of unusable fuel in the tank?Looking for opinions, experience or suggestions?--------Harv, 485PBRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Thanks guys for all the previous info on a nose tank.Now the question is will I have enough pressure for gravity feed to the Carb? I am planning to have a single seat Pietenpol. I would like to locate thenose tank where the passenger seat opening would be. I am thinking an oval shapedtank 16" deep at the center and about 18" long. It will be located with approximately8" of the tank above the longerons and 8" below. With the fuel valveat the rear of the tank will there be enough pressure for fuel to flow tothe carburator on a Corvair engine with 2 gallons of unusable fuel in the tank?Looking for opinions, experience or suggestions?--------Harv, 485PBRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Pietenpol-List: Re: Fuel Tank, Size/Location
Original Posted By: "AircamperN11MS"
Again, not to beat a dead horse but the Tony Bingelis books not only talk aboutrigging but flight testing and in-flightprocedures to see exactly what needs to be re-rigged and how to do it. Very systematic,very logical approach and using hisprocedures keeps you from chasing down the wrong flight control axis that you may'think' is the problem but it might not be. Uncle Tony knows best and tells you exactly how to do it. Mike C.http://www.eaa.org/en/eaa-shop/shop/sea ... clesFlight Testing (Pt.1)(SB)|SA89(1):27Flight Testing (Pt.2)(SB)|SA89(2):27Flight Testing (Pt.3)(SB)|SA89(3):28Rigging Trimming (Pt1)(SB)|SA94(7):111-116Rigging/Trimming (Pt2)(SB)|SA94(8):98-104________________________________________________________________________________Subject: Pietenpol-List: Re: Fuel Tank, Size/Location
Again, not to beat a dead horse but the Tony Bingelis books not only talk aboutrigging but flight testing and in-flightprocedures to see exactly what needs to be re-rigged and how to do it. Very systematic,very logical approach and using hisprocedures keeps you from chasing down the wrong flight control axis that you may'think' is the problem but it might not be. Uncle Tony knows best and tells you exactly how to do it. Mike C.http://www.eaa.org/en/eaa-shop/shop/sea ... clesFlight Testing (Pt.1)(SB)|SA89(1):27Flight Testing (Pt.2)(SB)|SA89(2):27Flight Testing (Pt.3)(SB)|SA89(3):28Rigging Trimming (Pt1)(SB)|SA94(7):111-116Rigging/Trimming (Pt2)(SB)|SA94(8):98-104________________________________________________________________________________Subject: Pietenpol-List: Re: Fuel Tank, Size/Location
Original Posted By: "Douwe Blumberg"
Hello Harvey,Everyone builds their Piets a little different from each other. That said, I havenever seen one with the fuel tank in the location you are speaking of. Thereare some problems I would think you need to work out. Mostly math and sometesting. The amount of head pressure you will have will be a direct resultof how hi the fuel level is when measured from the inlet of the carburetor. Asthe fuel burns off, there will be less pressure resulting in less fuel flow.You could build a mock up and test it. The bigger problem I see if you were to have enough flow, is with the locationof the fuel pick up. If you were to have only one at the rear of the tank, Itcould become un-ported when you are descending for landing. Piets are very draggyand the approach for landings tend to be rather steep. I don't personally believe putting the tank in that location is a wise one. Ido think there will be fuel delivery issues. It takes up space that you couldat least put some camping gear in if you wanted. Then there is the problem ofhaving fuel in your lap in any kind of accident. Please consider these issues. If you do decide to put the tank in that locationyou will be testing something that hasn't been done before. At least that Iam aware of.Good luck with what ever you choose,Respectfully,--------Scott LiefeldFlying N11MS since March 1972Steel TubeC-85-12Wire WheelsBrodhead in 1996Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Hello Harvey,Everyone builds their Piets a little different from each other. That said, I havenever seen one with the fuel tank in the location you are speaking of. Thereare some problems I would think you need to work out. Mostly math and sometesting. The amount of head pressure you will have will be a direct resultof how hi the fuel level is when measured from the inlet of the carburetor. Asthe fuel burns off, there will be less pressure resulting in less fuel flow.You could build a mock up and test it. The bigger problem I see if you were to have enough flow, is with the locationof the fuel pick up. If you were to have only one at the rear of the tank, Itcould become un-ported when you are descending for landing. Piets are very draggyand the approach for landings tend to be rather steep. I don't personally believe putting the tank in that location is a wise one. Ido think there will be fuel delivery issues. It takes up space that you couldat least put some camping gear in if you wanted. Then there is the problem ofhaving fuel in your lap in any kind of accident. Please consider these issues. If you do decide to put the tank in that locationyou will be testing something that hasn't been done before. At least that Iam aware of.Good luck with what ever you choose,Respectfully,--------Scott LiefeldFlying N11MS since March 1972Steel TubeC-85-12Wire WheelsBrodhead in 1996Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Pietenpol-List: Fuel Tank, Size/Location
Original Posted By: "Harvey Plummer"
Hi Harvey,I agree that this is probably not going to be a good location. The fartherback you get, the lower the outlet will be during climb in relation to thecarb. I've heard of fuel flow issues with the tank up front so moving itback will very likely invoke some more. Problem with trying to max capacityin the nose is it forces the bottom of the tank lower and lower; hence theflow issues. Lots of guys build bigger tanks, but end up with a lot ofunusable fuel in there.A wing tank works well, has no fuel flow issue and opens up tons of room upfront. or a wing tank with a header tank; more complex, but works ifdesigned well.If you're looking for a single-seat, have you considered the Sky Scout?Super cute plane and I hear it performs quite nicely. The aircamperssmaller cousin. If I were wanting a single-seat Piet-type, I'd build one ina heartbeat.Good luck!DouweSubject: Pietenpol-List: Fuel Tank, Size/Location
Hi Harvey,I agree that this is probably not going to be a good location. The fartherback you get, the lower the outlet will be during climb in relation to thecarb. I've heard of fuel flow issues with the tank up front so moving itback will very likely invoke some more. Problem with trying to max capacityin the nose is it forces the bottom of the tank lower and lower; hence theflow issues. Lots of guys build bigger tanks, but end up with a lot ofunusable fuel in there.A wing tank works well, has no fuel flow issue and opens up tons of room upfront. or a wing tank with a header tank; more complex, but works ifdesigned well.If you're looking for a single-seat, have you considered the Sky Scout?Super cute plane and I hear it performs quite nicely. The aircamperssmaller cousin. If I were wanting a single-seat Piet-type, I'd build one ina heartbeat.Good luck!DouweSubject: Pietenpol-List: Fuel Tank, Size/Location
Pietenpol-List: Re: TC Piet progress
Original Posted By: Semih Oksay
Semih,Are you going to add any fingerstraps to the rudder pedal welds? My brother groundlooped his Jr Ace when his pedal broke. Fingerstrap reinforcement wouldhave helped.One example i found on the internet:http://mybearhawk.com/fuselage/pedal6.jpg--------David GallagherZodiac 601 XL-B: flying, 280+ hours nowNext project under construction: Finish my father's AircamperRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Semih,Are you going to add any fingerstraps to the rudder pedal welds? My brother groundlooped his Jr Ace when his pedal broke. Fingerstrap reinforcement wouldhave helped.One example i found on the internet:http://mybearhawk.com/fuselage/pedal6.jpg--------David GallagherZodiac 601 XL-B: flying, 280+ hours nowNext project under construction: Finish my father's AircamperRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Re: Pietenpol-List: Re: TC Piet progress
Original Posted By: Steven Dortch
Subject: Re: Pietenpol-List: Re: TC Piet progressVery good idea David. Thank you. The pedals are not complete yet. I willre-load photos when they are.=8BSemih2015-10-22 18:09 GMT+03:00 DaveG601XL :> david.m.gallagher(at)ge.com>>> Semih,>> Are you going to add any fingerstraps to the rudder pedal welds? My> brother ground looped his Jr Ace when his pedal broke. Fingerstrap> reinforcement would have helped.>> One example i found on the internet:>> http://mybearhawk.com/fuselage/pedal6.jpg>> --------> David Gallagher> Zodiac 601 XL-B: flying, 280+ hours now> Next project under construction: Finish my father's Aircamper>>> Read this topic online here:>> http://forums.matronics.com/viewtopic.p ... ======>>-- Semih Oksay________________________________________________________________________________
Subject: Re: Pietenpol-List: Re: TC Piet progressVery good idea David. Thank you. The pedals are not complete yet. I willre-load photos when they are.=8BSemih2015-10-22 18:09 GMT+03:00 DaveG601XL :> david.m.gallagher(at)ge.com>>> Semih,>> Are you going to add any fingerstraps to the rudder pedal welds? My> brother ground looped his Jr Ace when his pedal broke. Fingerstrap> reinforcement would have helped.>> One example i found on the internet:>> http://mybearhawk.com/fuselage/pedal6.jpg>> --------> David Gallagher> Zodiac 601 XL-B: flying, 280+ hours now> Next project under construction: Finish my father's Aircamper>>> Read this topic online here:>> http://forums.matronics.com/viewtopic.p ... ======>>-- Semih Oksay________________________________________________________________________________
