Original Posted By: Don Rucker
Subject: Pietenpol-List: Venting fuel tanks
Pietenpol-List: Venting fuel tanks
Re: Pietenpol-List: Venting fuel tanks
Original Posted By: TOM STINEMETZE
Have the header tank vent in to the filler neck of your center section tank.Aeronca's have it that way.If you use separate vents they must be at the same height and location.I did have them at same height but had header tank vent at leading edge of wing (high pressure)and the center tank at 30% cord,.....low pressure area.Gues what will happen at 65 Mph?Your header tank will not fill !Some things are learned the hard wayThe Aeronca way is best way to do this systemHansNX15KV-----Original Message-----
Have the header tank vent in to the filler neck of your center section tank.Aeronca's have it that way.If you use separate vents they must be at the same height and location.I did have them at same height but had header tank vent at leading edge of wing (high pressure)and the center tank at 30% cord,.....low pressure area.Gues what will happen at 65 Mph?Your header tank will not fill !Some things are learned the hard wayThe Aeronca way is best way to do this systemHansNX15KV-----Original Message-----
RE: Pietenpol-List: Venting fuel tanks
Original Posted By: owner-pietenpol-list-server(at)matronics.com
FYI.T-crafts have wing tanks that drain into the 12 gallon nose tank, whichmerely has a wire float. Allowing the wing tank to over fill the nose tankwill cause fuel to spew from the vent area in the nose, but there is reallyno reason why an alert pilot would do that.not that I ever have. :-0In the case of the T-craft, the main tank is the nose tank, and thereforecontains the fuel gauge. One could do the opposite.gauge the wing tank, butthen you really don't know what's in the main tank. FAR's require that you have some sort of fuel gauge.but they don't requirethat you use it. The Great Axel Purtee has a wire gauge on his wing tank(that he can't really see), so the rumor is that he flies by time.what anovel idea.but, then, he's a pro.Gary
FYI.T-crafts have wing tanks that drain into the 12 gallon nose tank, whichmerely has a wire float. Allowing the wing tank to over fill the nose tankwill cause fuel to spew from the vent area in the nose, but there is reallyno reason why an alert pilot would do that.not that I ever have. :-0In the case of the T-craft, the main tank is the nose tank, and thereforecontains the fuel gauge. One could do the opposite.gauge the wing tank, butthen you really don't know what's in the main tank. FAR's require that you have some sort of fuel gauge.but they don't requirethat you use it. The Great Axel Purtee has a wire gauge on his wing tank(that he can't really see), so the rumor is that he flies by time.what anovel idea.but, then, he's a pro.Gary
Pietenpol-List: RE: Venting fuel tanks
Original Posted By: Don Rucker
Hello all!Just recently joined this forum, and have a few questions. They are of the "newbie"order, so take it easy on me. A friend of mine and I are beginning theprocess of building a Piet. We have a few questions, as we plan our build. 1) Is there an effective alternative to Sitka Spruce? Here in Nebraska, Sitkais a bit difficult to come by.2) As I am a cabinet maker utilizing a CNC Machine, does anyone cut wing ribsout of plywood? Drawing and cutting could be a fun project for myself.Thanks for your attention, I'm sure we'll all be good friends by the end of ourbuild.Mike WallRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 23 Aug 2011 17:30:55 -0500Subject: Pietenpol-List: RE: Venting fuel tanks
Hello all!Just recently joined this forum, and have a few questions. They are of the "newbie"order, so take it easy on me. A friend of mine and I are beginning theprocess of building a Piet. We have a few questions, as we plan our build. 1) Is there an effective alternative to Sitka Spruce? Here in Nebraska, Sitkais a bit difficult to come by.2) As I am a cabinet maker utilizing a CNC Machine, does anyone cut wing ribsout of plywood? Drawing and cutting could be a fun project for myself.Thanks for your attention, I'm sure we'll all be good friends by the end of ourbuild.Mike WallRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 23 Aug 2011 17:30:55 -0500Subject: Pietenpol-List: RE: Venting fuel tanks
Pietenpol-List: Re: Spruce vs. ?????
Original Posted By: "kevinpurtee"
@Gary - I have a small mirror (shaped amazingly like Hello Kitty) on a lanyardin the cockpit so I can check the gage in flight. I have done so, but not veryoften. Typically, I use the mirror to make sure I actually reinstalled thegas cap or to check the fuel level when doing lots of little short hops, likegiving rides.--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/kitt ... ___Subject: Pietenpol-List: Re: Spruce vs. ?????
@Gary - I have a small mirror (shaped amazingly like Hello Kitty) on a lanyardin the cockpit so I can check the gage in flight. I have done so, but not veryoften. Typically, I use the mirror to make sure I actually reinstalled thegas cap or to check the fuel level when doing lots of little short hops, likegiving rides.--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/kitt ... ___Subject: Pietenpol-List: Re: Spruce vs. ?????
RE: Pietenpol-List: RE: Venting fuel tanks
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Don,I made my system in a similar way to Hans. I originally vented the headertank with the vent at center section tank height with the vent pointingforward. That created too much pressure in the header tank and would notfill from the center section. Next I pointed in the opposite direction andthat syphoned the fuel out over the wing. I ended up putting the vent insidethe center section tank as Hans did. That work a treat. I only had a fuelcontents gauge on the center section tank. When that ran out it was time toland!CheersPeterWonthaggi Australiahttp://www.cpc-world.com
Don,I made my system in a similar way to Hans. I originally vented the headertank with the vent at center section tank height with the vent pointingforward. That created too much pressure in the header tank and would notfill from the center section. Next I pointed in the opposite direction andthat syphoned the fuel out over the wing. I ended up putting the vent insidethe center section tank as Hans did. That work a treat. I only had a fuelcontents gauge on the center section tank. When that ran out it was time toland!CheersPeterWonthaggi Australiahttp://www.cpc-world.com
Re: Pietenpol-List: Spruce vs. ?????
Original Posted By: "TOM STINEMETZE"
If I remember correctly, douglas fir is 23% heavier than spruce, so that's worthlessweight...With any light-weight, low-power aircraft, any increase in empty weight is significant.Why add worthless weight just to save a few bucks or time during building?You'll be lugging that dead weight around every time you go flying.Build it light (regardless of your wood choice), and you'll be very happy withyour decision.If you don't have it already, consider buying a copy of the EAA book on buildingwith wood. Oh, and let me be the first to mention getting a set of Tony Bingelisbooks. They'll answer most of your questions, and be a great resource throughoutyour build.Good luck, and post pictures.Wayne BresslerTaildraggers, Inc.www.taildraggersinc.comOn Aug 23, 2011, at 6:27 PM, "mike79wall" wrote:> > Hello all!> > Just recently joined this forum, and have a few questions. They are of the "newbie"order, so take it easy on me. A friend of mine and I are beginning theprocess of building a Piet. We have a few questions, as we plan our build.> > 1) Is there an effective alternative to Sitka Spruce? Here in Nebraska, Sitkais a bit difficult to come by.> > 2) As I am a cabinet maker utilizing a CNC Machine, does anyone cut wing ribsout of plywood? Drawing and cutting could be a fun project for myself.> > Thanks for your attention, I'm sure we'll all be good friends by the end of ourbuild.> > Mike Wall> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 361#350361> > > > > > > > > > > ________________________________________________________________________________Date: Wed, 24 Aug 2011 08:17:44 -0500
If I remember correctly, douglas fir is 23% heavier than spruce, so that's worthlessweight...With any light-weight, low-power aircraft, any increase in empty weight is significant.Why add worthless weight just to save a few bucks or time during building?You'll be lugging that dead weight around every time you go flying.Build it light (regardless of your wood choice), and you'll be very happy withyour decision.If you don't have it already, consider buying a copy of the EAA book on buildingwith wood. Oh, and let me be the first to mention getting a set of Tony Bingelisbooks. They'll answer most of your questions, and be a great resource throughoutyour build.Good luck, and post pictures.Wayne BresslerTaildraggers, Inc.www.taildraggersinc.comOn Aug 23, 2011, at 6:27 PM, "mike79wall" wrote:> > Hello all!> > Just recently joined this forum, and have a few questions. They are of the "newbie"order, so take it easy on me. A friend of mine and I are beginning theprocess of building a Piet. We have a few questions, as we plan our build.> > 1) Is there an effective alternative to Sitka Spruce? Here in Nebraska, Sitkais a bit difficult to come by.> > 2) As I am a cabinet maker utilizing a CNC Machine, does anyone cut wing ribsout of plywood? Drawing and cutting could be a fun project for myself.> > Thanks for your attention, I'm sure we'll all be good friends by the end of ourbuild.> > Mike Wall> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 361#350361> > > > > > > > > > > ________________________________________________________________________________Date: Wed, 24 Aug 2011 08:17:44 -0500
Re: Pietenpol-List: Upper Engine Mounts
Original Posted By: Hans Van Der Voort
Of 4 Piets that I have owned, they all had a wing center section tank with a capvent , that extended up 1" above the cap, IMPORTANT , This fuel line had a shut-offlocated on the right cabane for pilot access, the fuel line went to thegas-o-later with a "T" to the header tank which had a shut-off, operated fromthe rear cockpit, for refueling during flight.Once in a while you will forget to shut-off the top tank, but the gas smell willtell you quickly to turn the valve off.I use the float in- cap Gage in the header cap, the clearance around the floatwire is all the venting required to keep fuel moving in the correct direction.I tried to vent the top filler vent on the neck of the tank filler and the fuelwould not flow to the header tank, unless you would almost stall the wing tolower the negative pressure.Pieti LowellRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Upper Engine Mounts
Of 4 Piets that I have owned, they all had a wing center section tank with a capvent , that extended up 1" above the cap, IMPORTANT , This fuel line had a shut-offlocated on the right cabane for pilot access, the fuel line went to thegas-o-later with a "T" to the header tank which had a shut-off, operated fromthe rear cockpit, for refueling during flight.Once in a while you will forget to shut-off the top tank, but the gas smell willtell you quickly to turn the valve off.I use the float in- cap Gage in the header cap, the clearance around the floatwire is all the venting required to keep fuel moving in the correct direction.I tried to vent the top filler vent on the neck of the tank filler and the fuelwould not flow to the header tank, unless you would almost stall the wing tolower the negative pressure.Pieti LowellRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Upper Engine Mounts
Pietenpol-List: Upper Engine Mounts
Original Posted By: Michael Perez
Pietenpol-List: RE: Venting fuel tanks
Original Posted By: Don Rucker
Is this a general question, or are you referring to a specific supplier?You can get spruce from aircraft supply houses, or specialty wood suppliers, andyou can also get spruce from the big box building supply stores. Obviously awide range of "quality" will be found.> mlmarkelee7(at)gmail.com> Guest> > Posted: Wed Aug 24, 2011 8:57 am Post subject: Wooden Lift Struts > > --------------------------------------------------------------------------------> > Speaking of spruce. Is everyone happy with what they have been getting.We knowthe price is of course high. But how is the quality. > > Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 24 Aug 2011 15:33:11 -0500Subject: Pietenpol-List: RE: Venting fuel tanks
Is this a general question, or are you referring to a specific supplier?You can get spruce from aircraft supply houses, or specialty wood suppliers, andyou can also get spruce from the big box building supply stores. Obviously awide range of "quality" will be found.> mlmarkelee7(at)gmail.com> Guest> > Posted: Wed Aug 24, 2011 8:57 am Post subject: Wooden Lift Struts > > --------------------------------------------------------------------------------> > Speaking of spruce. Is everyone happy with what they have been getting.We knowthe price is of course high. But how is the quality. > > Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 24 Aug 2011 15:33:11 -0500Subject: Pietenpol-List: RE: Venting fuel tanks
Re: Pietenpol-List: Flight video
Original Posted By: TOM STINEMETZE
I love the tight, steep, curved approach to the runway. That is some of the most fun flying with a Pietenpol.Greg Cardinal ----- Original Message -----
I love the tight, steep, curved approach to the runway. That is some of the most fun flying with a Pietenpol.Greg Cardinal ----- Original Message -----
Pietenpol-List: Re: Venting fuel tanks
Original Posted By: "Billy McCaskill"
You should have taken your chance when you had it, Mark. When Kevin yelled myname at Brodhead and told me to get in the airplane, I didn't hesitate. It wasa great ride, and the Corvair didn't scare me one bit! Thanks again Kevin!--------Billy McCaskillUrbana, ILtail section almost done, starting on ribs soonRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Venting fuel tanks
You should have taken your chance when you had it, Mark. When Kevin yelled myname at Brodhead and told me to get in the airplane, I didn't hesitate. It wasa great ride, and the Corvair didn't scare me one bit! Thanks again Kevin!--------Billy McCaskillUrbana, ILtail section almost done, starting on ribs soonRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Venting fuel tanks