Brodhead Pietenpol Association

Original Posted By: Lion Mason
I think you would be happy with it. I have had one for years and really like it.I use mine several times a week. For me it is easier to hold and have more control.It does concentrate the flame and temp. You can weld thin sheet metalnice with minimal warpage but it still will warp. There is a tip for welding thinwall 4130 that to my knowledge doesn't come with there newer kits. You canbuy it separate. There are two number two tips. One has a ring at the bottomand the other at the top. The one at the top works best for .035 wall 4130. Theolder kits had them but that's when they were a Henbrob which is what I have.It isn't a must but there regulators make it a little easier to get 4-5 lbs.most oxygen regulators don't go that low. Also there light weight hoses are nice.Make sure you use smooth rods to clean the tips. The normal tip cleanerswith grooves will ruin the tips and will not weld right. With practice you canmake a gas weld on your tubing look just like a tig weld. They also weld alum.Nice but you do have to have the correct lens to see the alum. Melt. My opinionis they are well worth there money. Good luck!Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: How to figure the volume of your center section fueltank

Original Posted By: "jarheadpilot82"
Terry I did it the dumb ass way. I kept filling the tank 1 gallon at a time tillit was full and,voila, I had a figure. GardinerNSent from my iPhoneOn Feb 6, 2014, at 6:02 PM, "jarheadpilot82" wrote:> > Reading through old issues of Sport Aviation Magazine, I came across this articlefrom the January 1990 issue. I have made a copy of the one page and postedit here. I don't think that the lawyers at EAA will shoot me for doing so, butI am giving them full credit for the ownership of the article. I wouldn't wantanyone to worry about me taking credit for someone else's work. The articlegives you a method for calculating the area of irregular shapes. I used it toget a ballpark idea of the size of my center section fuel tank. > > I took the template for my fuel tank and measured the side view (which is theairfoil shape between the front and rear spars), then multiplied that by theproposed width of the tank. I used a conservative figure of 20 inches. You thenhave the volume of your tank in cubic inches. Divide that number by 231 andyou should have a fair idea of the volume of your future fuel tank. my TigerMoth-ish/Douwe Blumberg-ish tank comes in at around 19 gallons and change.> > Hope that helps.> > --------> Semper Fi,> > Terry Hand> Athens, GA> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 232#418232> > > > > Attachments: > > http://forums.matronics.com//files/shop_calc_184.png> > > > > > > ________________________________________________________________________________Subject: Pietenpol-List: Re: How to figure the volume of your center section fueltank

Original Posted By: glenschweizer(at)yahoo.com
Gardiner,I did it this way before building my tank so I could adjust the "Tiger Moth-ish"shape to give me the fuel I needed. Not having made my tank, it is helping mein the design phase. Really meant for other active builders, not necessarilythose, like you, that have completed their build.--------Semper Fi,Terry HandAthens, GARead this topic online here:http://forums.matronics.com/viewtopic.p ... __________

Original Posted By: "jarheadpilot82"
What thickness of alum is good for center section tank ? T3?Sent from my iPhone> On Feb 6, 2014, at 4:47 PM, Lion Mason wrote:> > > Terry I did it the dumb ass way. I kept filling the tank 1 gallon at a time tillit was full and,voila, I had a figure. Gardiner> N> > Sent from my iPhone> >> On Feb 6, 2014, at 6:02 PM, "jarheadpilot82" wrote:>> >> >> Reading through old issues of Sport Aviation Magazine, I came across this articlefrom the January 1990 issue. I have made a copy of the one page and postedit here. I don't think that the lawyers at EAA will shoot me for doing so,but I am giving them full credit for the ownership of the article. I wouldn'twant anyone to worry about me taking credit for someone else's work. The articlegives you a method for calculating the area of irregular shapes. I used itto get a ballpark idea of the size of my center section fuel tank. >> >> I took the template for my fuel tank and measured the side view (which isthe airfoil shape between the front and rear spars), then multiplied that by theproposed width of the tank. I used a conservative figure of 20 inches. Youthen have the volume of your tank in cubic inches. Divide that number by 231 andyou should have a fair idea of the volume of your future fuel tank. my TigerMoth-ish/Douwe Blumberg-ish tank comes in at around 19 gallons and change.>> >> Hope that helps.>> >> -------->> Semper Fi,>> >> Terry Hand>> Athens, GA>> >> >> >> >> Read this topic online here:>> >> http://forums.matronics.com/viewtopic.p ... 232#418232>> >> >> >> >> Attachments: >> >> http://forums.matronics.com//files/shop_calc_184.png> > > > > ________________________________________________________________________________Subject: Pietenpol-List: Re: How to figure the volume of your center section fueltank

Original Posted By: Ray Krause
Glen,Here is a link to a Tony Bingelis article about aluminum fuel tanks-http://members.eaa.org/home/homebuilder ... lHopefully, it can answer a lot of your questions.--------Semper Fi,Terry HandAthens, GARead this topic online here:http://forums.matronics.com/viewtopic.p ... __________

Original Posted By: "Braniff1966"
Thanks, nice pointers. I will go back to the Farm Show and buy a set. Not surewhich tips it comes with. I have cheap "Harbor Fright" regulators, they may notwork. I will see. I think I would feel more secure with this setup than a TIG,which I have tried. And, it is a lot cheaper! I just hope the welds are asstrong as the TIG.THANKS,RAY KRAUSESent from my iPad> On Feb 6, 2014, at 3:36 PM, "Pietflyer1977" wrote:> > > I think you would be happy with it. I have had one for years and really likeit. I use mine several times a week. For me it is easier to hold and have morecontrol. It does concentrate the flame and temp. You can weld thin sheet metalnice with minimal warpage but it still will warp. There is a tip for weldingthin wall 4130 that to my knowledge doesn't come with there newer kits. You canbuy it separate. There are two number two tips. One has a ring at the bottomand the other at the top. The one at the top works best for .035 wall 4130.The older kits had them but that's when they were a Henbrob which is what I have.It isn't a must but there regulators make it a little easier to get 4-5 lbs.most oxygen regulators don't go that low. Also there light weight hoses arenice. Make sure you use smooth rods to clean the tips. The normal tip cleanerswith grooves will ruin the tips and will not weld right. With practice you canmake a gas weld on your tubing look just like a tig!> weld. They also weld alum. Nice but you do have to have the correct lens tosee the alum. Melt. My opinion is they are well worth there money. Good luck!> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 235#418235> > > > > > > > > > ________________________________________________________________________________Subject: Pietenpol-List: Re: How to figure the volume of your center section fueltank

Original Posted By: "Braniff1966"
that's how I did it. one gal at a time in a milk jug.. I teach aviation scienceat a college and we use terrys method..hydeRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: texas piet. flyin

Original Posted By: "taildrags"
hanks for the kudos.... Can't imagine cutting all the 4130 without this small bandsaw.It's from Harbor Freight but it is the only portable metal bandsaw I knowof hhat "twists" the blade so you can cut an infinite length or width of stock.I use reaal good "milwaukee" 24 tooth blades. It will cut through 4130 plateall day long with no fluids. You sure so need hearing protection, however.Picked up some brand new Honda ATV brake calipers and the welder comes again intwo weeks - gotta get more done on the landing gear before he arrives.....Having a great journey and some of the folks on this list are the best part........--------Jake Schultz - curator,Newport Way Air Museum (OK, it's just my home)Read this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/2014 ... ___Subject: Pietenpol-List: Re: How to figure the volume of your center section fueltank

Original Posted By: "taildrags"
Ray; your reply about making the torch work look easy should have been addressedto "tools", not me. I wouldn't know a Cobra torch from a Cobra CB radio.--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: How to figure the volume of your center section fueltank

Original Posted By: Ray Krause
Well, it looks like I'm in good company here. When I had the fuel tank out ofmy airplane years ago, I wanted to determine just how much fuel it would holdand I did the gallon jug thing too. Funny thing is, I had the bright idea ofmarking the float rod (I have a nose tank with the J-3 style rod and float indicator)-and when I started pouring in the first jug of water, I noticed thatCorky had already filed some shallow but clear marks onto the rod at 1 gallonincrements. Well, OK, but I was already set up to do it so I went ahead and checkedCorky's work. Why? ;o)The marks on the float rod are not distinct enough to see from the cockpit, butthey are helpful when you pull up to the fuel pump because you already have agood idea of how many gallons it'll take to top it off without spilling avgasover the cowling. Most of the time ;o)My wife is always telling me that I can't just take her word for anything, I'vegot to check things out for myself. Maybe she's right... I'll have to checkthat out.--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________