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Pietenpol-List: center section fuel tank security
Posted: Tue Oct 21, 2003 2:19 pm
by matronics
Original Posted By: "catdesign(at)intergate.com"
When securing the tank in the center section with straps over the top, I've becomeconcerned with the fact that nothing is holding the tank from falling outthe bottom except the wood structure. The plans call for tabs on the tank whichis frowned upon how because of fatigue cracks. Any thoughts out there on thestrength of that wood structure or should I figure out a strap system thatcompletely encloses the tank top and bottom?Douwedouweblumberg(at)earthlink.net________________________________________________________________________________Date: Tue, 21 Oct 2003 14:52:29 -0500
Re: Pietenpol-List: center section fuel tank security
Posted: Tue Oct 21, 2003 3:27 pm
by matronics
Original Posted By: "Douwe Blumberg"
Douwe,Check the prints, there are wood strips fore and aft that the tank sits on.I added felt strips also.walt evansNX140DL----- Original Message -----
Re: Pietenpol-List: center section fuel tank security
Posted: Tue Oct 21, 2003 3:34 pm
by matronics
Original Posted By: BARNSTMR(at)aol.com
Subject: Re: Pietenpol-List: center section fuel tank securityDouweI made a full-width flanges front and rear (integral with the tank) to sit on the spars. Gave some thought to the possibility of fatigue and decided that it would be minimized by spreading the load across the full width of the tank.It is certainly an area that will get ongoing attention. Also added full widthstiffeners 1/8th " X 1" with T-88 at the front and rear junction between the plwood and the spar bottom.Don Hicks ________________________________________________________________________________Date: Tue, 21 Oct 2003 17:23:52 -0400
Re: Pietenpol-List: Instrument Repair
Posted: Tue Oct 21, 2003 6:17 pm
by matronics
Original Posted By:
AWWWWW you don't want THAT old thing . . . send it to me!Gene(send it to Keystone Instrument in PA for restoration if you must)----- Original Message -----
Re: Pietenpol-List: Instrument Repair
Posted: Tue Oct 21, 2003 6:18 pm
by matronics
Original Posted By:
NO NO NO NO NO, do not attempt to repair yourself, especially the old 4"instruments!Gene----- Original Message -----
Re: Pietenpol-List: Instrument Repair
Posted: Tue Oct 21, 2003 7:33 pm
by matronics
Original Posted By: Jim Ash
RE: Pietenpol-List: center section fuel tank security
Posted: Tue Oct 21, 2003 8:32 pm
by matronics
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Douwe,I had the same concerns and devised a strap system to support the tank andkeep the weight off the plywood. My tank holds 15 gallons, which is 90 lbs.at 1 G. At the 4 G's or so the wing is good for, that would be 360 lbs,which seems a lot to ask of a sheet of thin plywood.Jack Phillips-----Original Message-----
Re: Pietenpol-List: center section fuel tank security
Posted: Wed Oct 22, 2003 5:22 pm
by matronics
Original Posted By: john e fay
Subject: Re: Pietenpol-List: center section fuel tank security
Posted: Wed Oct 22, 2003 5:54 pm
by matronics
Original Posted By: Jim Ash