Original Posted By: "hall698"
West Systems is produced by Gougeon Brothers, Inc., P.O. Box 908, Bay City, MI48707, and you can call their Tech Rep at 866-937-8797 or 989-684-7286. I've foundthem very helpful, and I'd use their advice before trying others' "workedfor me" stories. You can also subscribe (free) to their quarterly EPOXY WORKSmagazine which is a good source of ideas. At Airworthiness Insp stage - taxitesting now.Don YoungbloodEasley, SC--------Planes&BikesRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/dscn ... ___Subject: Pietenpol-List: Horizontal Stab center section build up
Pietenpol-List: Horizontal Stab center section build up
Pietenpol-List: Re: Horizontal Stab center section build up
Original Posted By: "hall698"
Having seen this joint in failure mode, 1/8 will work fine. However, I still liketo build to plans, just for peace of mind. I am FULLY convinced that laminatingup to 3/16 yourself is super perfectly fine.I might add that the plans call for merely wood screwing the stab to the fuse.Not through bolting as is usually done. Should you through bolt, I would reinforcethe fuse where you drill through it, scarf plate, what ever, something.Using screws does not compromise the longeron any where near as much as drillinga hole through it. ToolsRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Horizontal Stab center section build up
Having seen this joint in failure mode, 1/8 will work fine. However, I still liketo build to plans, just for peace of mind. I am FULLY convinced that laminatingup to 3/16 yourself is super perfectly fine.I might add that the plans call for merely wood screwing the stab to the fuse.Not through bolting as is usually done. Should you through bolt, I would reinforcethe fuse where you drill through it, scarf plate, what ever, something.Using screws does not compromise the longeron any where near as much as drillinga hole through it. ToolsRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Horizontal Stab center section build up
Pietenpol-List: Re: Horizontal Stab center section build up
Original Posted By: "tools"
Great info. I will go the 2 x 1/8 lam route for now. Thanks for the advice. GodBlessRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Horizontal Stab center section build up
Great info. I will go the 2 x 1/8 lam route for now. Thanks for the advice. GodBlessRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Horizontal Stab center section build up
Pietenpol-List: Re: Horizontal Stab center section build up
Original Posted By: "taildrags"
Didn't mention specifically, but I wouldn't hesitate to go 2x 1/8 and then planeto 3/16 which is I believe what you mentioned in your original post. ToolsRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Horizontal Stab center section build up
Didn't mention specifically, but I wouldn't hesitate to go 2x 1/8 and then planeto 3/16 which is I believe what you mentioned in your original post. ToolsRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Horizontal Stab center section build up
Pietenpol-List: Re: Horizontal Stab center section build up
Original Posted By: "Bill Church"
I see that the last part of your question wasn't addressed, asking whether theplywood piece on the TE should also be 3/16". What I'm seeing of the beam sections,the LE nose is 3/4" and the beam thickness is 1/2", so that leaves a stepof 1/8" to receive the 3/16" plywood. That means that the plywood will be1/16" proud of the LE nose where the vertical stabilizer attaches to it. Thereare some 1/2" x 3/16" strips every 9" or so, spanwise out each side of the HS,so those will also stand proud of the LE beam by 1/16". I'm not sure if peopleare rounding those down to fair into the nose of the LE... someone else willhave to answer that.Moving aft along the HS, there is a 3/4" thick center beam and 3/4" thick diagonalbraces that the 1/2" x 3/16" strips ride over, giving the whole HS a bit ofan upper and lower camber. Where the 3/16" plywood goes on top of the centerbeam, it's matching the 3/16" thickness of the strips... so far, so good. Nowto the main beam of the HS, since it is called out as 5/8" thick with a 1"beam depth. If you make that plywood 3/16" thick, it will be perfectly flushwith the beam, as will the 1/2" x 3/16" strips, so there's that piece of the puzzle...that plywood should also be 3/16".Continuing aft to the TE of the elevator, that piece is called out as 5/8" witha thickness of 1/2", leaving a 1/16" step. The 1/2"x3/16" strips are going tostick up 1/8", not a very smooth transition to the TE, so I don't know whatthe answer is back there. The callouts for 1/8" plywood on the HS plan are forthe gussets where the diagonals join the center beam, at the four corners ofthe assembly, and under the back of the main beam where you will attach the nutplatesthat hold the elevator hinges to the main beam.--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 power, 72x36 Culver propRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Horizontal Stab center section build up
I see that the last part of your question wasn't addressed, asking whether theplywood piece on the TE should also be 3/16". What I'm seeing of the beam sections,the LE nose is 3/4" and the beam thickness is 1/2", so that leaves a stepof 1/8" to receive the 3/16" plywood. That means that the plywood will be1/16" proud of the LE nose where the vertical stabilizer attaches to it. Thereare some 1/2" x 3/16" strips every 9" or so, spanwise out each side of the HS,so those will also stand proud of the LE beam by 1/16". I'm not sure if peopleare rounding those down to fair into the nose of the LE... someone else willhave to answer that.Moving aft along the HS, there is a 3/4" thick center beam and 3/4" thick diagonalbraces that the 1/2" x 3/16" strips ride over, giving the whole HS a bit ofan upper and lower camber. Where the 3/16" plywood goes on top of the centerbeam, it's matching the 3/16" thickness of the strips... so far, so good. Nowto the main beam of the HS, since it is called out as 5/8" thick with a 1"beam depth. If you make that plywood 3/16" thick, it will be perfectly flushwith the beam, as will the 1/2" x 3/16" strips, so there's that piece of the puzzle...that plywood should also be 3/16".Continuing aft to the TE of the elevator, that piece is called out as 5/8" witha thickness of 1/2", leaving a 1/16" step. The 1/2"x3/16" strips are going tostick up 1/8", not a very smooth transition to the TE, so I don't know whatthe answer is back there. The callouts for 1/8" plywood on the HS plan are forthe gussets where the diagonals join the center beam, at the four corners ofthe assembly, and under the back of the main beam where you will attach the nutplatesthat hold the elevator hinges to the main beam.--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 power, 72x36 Culver propRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Horizontal Stab center section build up
Original Posted By: "M W Stanley"
Just laminate a piece of 1/8" and a piece of 1/16" together. You should have thosetwo thicknesses of plywood, since the rib gussets are 1/16" and pretty muchall of the other gussets are 1/8".Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Just laminate a piece of 1/8" and a piece of 1/16" together. You should have thosetwo thicknesses of plywood, since the rib gussets are 1/16" and pretty muchall of the other gussets are 1/8".Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________