Original Posted By: Mark Roberts
Probably based on the relationship between the sawmiller/kiln and the supplier(wicks or aircraft spruce). They probably make both 1 and 3/4 out of 5/4 stock to ensure they can get goodyield. They might make 1/2" out of the same stuff, but spend even more time planing,so it costs more... for less! Or something like that.Often times, anything other than 4/4 stock cost more per board foot, just becausethe mills don't saw as much of it. 4/4 is typically used to yield 3/4" boards.However in the case of spars, and the exceptional long lengths, they mayhave to use 5/4 to reliably get 3/4. Also, they may just specify 5/4 so theycan get whatever it is they need out of it and not worry about it too much.No doubt it all seems a bit odd.ToolsRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 10 Jan 2012 17:02:01 -0800Subject: Pietenpol-List: Tube "Improved" gear questions
Pietenpol-List: Tube "Improved" gear questions
Pietenpol-List: Tube "Improved" gear questions
Original Posted By: "Dick N"
Hi Guys:I am about to go join the fuse halves together and thought I'd get a head start on the landing gear planning.I decided the only thing preventing me from building the steel tubing landing gear is intimidation of working with metal. So, I am gonna have the gear parts fabricated for me and welded up by a professional welder friend of mine.My question is about the springs versus the bungie wrapped 'spring'. Are there sketches or plans available for the modification somewhere? I am not sure how to substitute the bungie wrap for the springs. I am assuming all else is the same...I plan to order the parts soon and have them working while I am building the rest of the fuse.Thanks for the help!Mark________________________________________________________________________________
Hi Guys:I am about to go join the fuse halves together and thought I'd get a head start on the landing gear planning.I decided the only thing preventing me from building the steel tubing landing gear is intimidation of working with metal. So, I am gonna have the gear parts fabricated for me and welded up by a professional welder friend of mine.My question is about the springs versus the bungie wrapped 'spring'. Are there sketches or plans available for the modification somewhere? I am not sure how to substitute the bungie wrap for the springs. I am assuming all else is the same...I plan to order the parts soon and have them working while I am building the rest of the fuse.Thanks for the help!Mark________________________________________________________________________________
RE: Pietenpol-List: Tube "Improved" gear questions
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Here you go Mark.JackDSMNX1929T _____
Here you go Mark.JackDSMNX1929T _____
Re: Pietenpol-List: Tube "Improved" gear questions
Original Posted By:> owner-pietenpol-list-server(at)matronics.com [mailto:owner-pietenpol-li
Hey thanks Jack!Just what I was needing. I yielded to the temptation of going out to the barn to build tonight instead of creating my parts list. I am taking my fabricator to lunch next week and I wanted to give him the plans to begin work, so this is great!I bought the Obechi ply flooring today and tomorrow the epoxy gets mixed to join the cross members to the sides. Hope to have the floor in this weekend!MarkSent from my iPadOn Jan 10, 2012, at 5:31 PM, "Jack" wrote:> Here you go Mark> Jack> DSM> NX1929T> >
Hey thanks Jack!Just what I was needing. I yielded to the temptation of going out to the barn to build tonight instead of creating my parts list. I am taking my fabricator to lunch next week and I wanted to give him the plans to begin work, so this is great!I bought the Obechi ply flooring today and tomorrow the epoxy gets mixed to join the cross members to the sides. Hope to have the floor in this weekend!MarkSent from my iPadOn Jan 10, 2012, at 5:31 PM, "Jack" wrote:> Here you go Mark> Jack> DSM> NX1929T> >
Pietenpol-List: Re: Tube "Improved" gear questions
Original Posted By: "Cuy, Michael D. (GRC-RXD0)[ASRC AEROSPACE CORP]"
Make SURE you widen out (fore & aft) both the upper and lower attach points forthis gear to eliminate tube contact when the gear "gives". I had to dent oneof my tubes for clearance.--------PAPA MIKERead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Make SURE you widen out (fore & aft) both the upper and lower attach points forthis gear to eliminate tube contact when the gear "gives". I had to dent oneof my tubes for clearance.--------PAPA MIKERead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Pietenpol-List: Re: Tube "Improved" gear questions
Original Posted By: "899PM"
Sorry I meant 115 (Not 150). : ) Heck, even I would move if that was the temp. Bryan--------Working Piet N5289BWhile I may not always be right, I apologize well.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Tube "Improved" gear questions
Sorry I meant 115 (Not 150). : ) Heck, even I would move if that was the temp. Bryan--------Working Piet N5289BWhile I may not always be right, I apologize well.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Tube "Improved" gear questions
Original Posted By: "Cuy, Michael D. (GRC-RXD0)[ASRC AEROSPACE CORP]"
A few pix of my "improved" gear. Forgot what the tread is....I think it's 60".The springs are bushed with UHMW and give me the ability to vary spring rate viabicycle shock springs in 50# increments. I think I have a 400# and a 500# oneach side now. In doing it over again, I would move both the upper and lowerattach points as far for and aft as possible.--------PAPA MIKERead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/img_ ... __________
A few pix of my "improved" gear. Forgot what the tread is....I think it's 60".The springs are bushed with UHMW and give me the ability to vary spring rate viabicycle shock springs in 50# increments. I think I have a 400# and a 500# oneach side now. In doing it over again, I would move both the upper and lowerattach points as far for and aft as possible.--------PAPA MIKERead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/img_ ... __________
Re: Pietenpol-List: Re: Tube "Improved" gear questions
Original Posted By: "Mark Stanley"
Thank you for those pic's! That helps a lot. I think moving the attach points furtherapart makes good sense too.Sent from my iPadOn Jan 13, 2012, at 11:42 AM, "899PM" wrote:> > A few pix of my "improved" gear. Forgot what the tread is....I think it's 60".The springs are bushed with UHMW and give me the ability to vary spring ratevia bicycle shock springs in 50# increments. I think I have a 400# and a 500#on each side now. In doing it over again, I would move both the upper and lowerattach points as far for and aft as possible.> > --------> PAPA MIKE> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 630#363630> > > > > Attachments: > > http://forums.matronics.com//files/img_4157_573.jpg> http://forums.matronics.com//files/img_4158_309.jpg> http://forums.matronics.com//files/img_4167_224.jpg> > > > > > > ________________________________________________________________________________
Thank you for those pic's! That helps a lot. I think moving the attach points furtherapart makes good sense too.Sent from my iPadOn Jan 13, 2012, at 11:42 AM, "899PM" wrote:> > A few pix of my "improved" gear. Forgot what the tread is....I think it's 60".The springs are bushed with UHMW and give me the ability to vary spring ratevia bicycle shock springs in 50# increments. I think I have a 400# and a 500#on each side now. In doing it over again, I would move both the upper and lowerattach points as far for and aft as possible.> > --------> PAPA MIKE> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 630#363630> > > > > Attachments: > > http://forums.matronics.com//files/img_4157_573.jpg> http://forums.matronics.com//files/img_4158_309.jpg> http://forums.matronics.com//files/img_4167_224.jpg> > > > > > > ________________________________________________________________________________
Re: Pietenpol-List: Re: My Piet is out of long term storage
Original Posted By: Michael Perez
Hi Mike,I=99m way off getting to the fitting of the gear stage yet but I would like to put in my opinion. (it=99s a good pre-planning excersise anyway)Looking at the drawing attachment that Bill C posted, I think that the ash blocks ARE angled towards the tail. To me, the blocks appear to be drawn at an angle plus there is an extra line drawn on the inside edge of the landing gear struts, which I guess would be the rear struts. If you continue that extra line down, it would intersect with where the ash blocks would be if they were angled toward the tail.I also think that the 42.5=9D between the ash blocks could be a reference to the distance at the point the axle crosses them.As you say, lots to interpret!Mark StanleyJapan
Hi Mike,I=99m way off getting to the fitting of the gear stage yet but I would like to put in my opinion. (it=99s a good pre-planning excersise anyway)Looking at the drawing attachment that Bill C posted, I think that the ash blocks ARE angled towards the tail. To me, the blocks appear to be drawn at an angle plus there is an extra line drawn on the inside edge of the landing gear struts, which I guess would be the rear struts. If you continue that extra line down, it would intersect with where the ash blocks would be if they were angled toward the tail.I also think that the 42.5=9D between the ash blocks could be a reference to the distance at the point the axle crosses them.As you say, lots to interpret!Mark StanleyJapan