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Lay up sched?
ykrauq <fifty101fifty@...>
Any one know the lay-up schedule for the Ls1 spar? Not just to join
the two halves but of the spar it self? |
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Mike Perry <dmperry1012@...>
Here is the lamination schedule for the LS 1 spar, however you really
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really REALLY need the full directions -- mine was done wrong by the first builder (did not allow 3.5 deg sweep in jigging and canard has to be cut out, re-jigged, spar cap redone!) So get a copy of the instructions and study carefully before you start! The LS1 spar gets 3 ply of BID at 45 deg extending 6" outside the joint (12" total) then spars caps of UNI: Bottom: 5 ply 18" x 3.5" 5 ply 16" " x 3.5" 5 ply 14" x 3.5" 5 ply 12" x 3.5" 5 ply 10" x 3.5" Top: 5 ply 20" x 3.5" 5 ply 18" x 3.5" 5 ply 16" " x 3.5" 5 ply 14" x 3.5" 5 ply 12" x 3.5" 5 ply 10" x 3.5" Mike Perry At 05:36 PM 10/4/2006 +0000, you wrote:
Any one know the lay-up schedule for the Ls1 spar? Not just to join |
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Jason Muscat <fifty101fifty@...>
Mike
Thanx for the info. I do have the directions for the LS1 but i am under the assumption they are not the final draft as they have stated in the first paragraph "The four large appendix sheets are the final drawings. The few instructions included here are not." And i am also assuming that there was never a set of directions to make spars as they were always pre fabricated in two pieces in the kit and joined by the builder. Are both these assumptions correct? If so does any one have the full ls1 canard directions? Does any one have the spar lay-up directions if it was ever instructed for the builder to make the spars him self? And 3.5* sweep, i have checked my math 4 times and im showing a sweep of 3.79*. Close enough I guess. My hats off to you guys, i have no idea how you make these planes from the plans. much appreciated Jason Mike Perry <dmperry1012@...> wrote: Here is the lamination schedule for the LS 1 spar, however you really really REALLY need the full directions -- mine was done wrong by the first builder (did not allow 3.5 deg sweep in jigging and canard has to be cut out, re-jigged, spar cap redone!) So get a copy of the instructions and study carefully before you start! The LS1 spar gets 3 ply of BID at 45 deg extending 6" outside the joint (12" total) then spars caps of UNI: Bottom: 5 ply 18" x 3.5" 5 ply 16" " x 3.5" 5 ply 14" x 3.5" 5 ply 12" x 3.5" 5 ply 10" x 3.5" Top: 5 ply 20" x 3.5" 5 ply 18" x 3.5" 5 ply 16" " x 3.5" 5 ply 14" x 3.5" 5 ply 12" x 3.5" 5 ply 10" x 3.5" Mike Perry At 05:36 PM 10/4/2006 +0000, you wrote: Any one know the lay-up schedule for the Ls1 spar? Not just to join --------------------------------- All-new Yahoo! Mail - Fire up a more powerful email and get things done faster. |
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David J. Gall
Jason,
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You do not have the complete plans. What you have is three pages that start with the words "Dear Builder." The complete LS(1) plans include this document, but are also composed of seven more pages of text entitled "Construction of LS(1)-0417MOD Canard," plus four(?) appendix sheets. The Quickie (not Q2/200) LS(1) plans are the same, plus another three page document entitled "Construction of LS(1)-0417MOD Quickie Canard." Note inclusion of the word "Quickie." I publish a CD with all of the Q2/200 plans and QAC newsletters, but without any of the full-size templates (appendix sheets). It is available at http://QuickieSource.com. (If I could get my hands on ORIGINALS of the LS(1) appendix sheets for both the Q200 and the Quickie I'd happily digitize them and return them to their owner, then publish them in .pdf and .dxf format. I already have all the other appendix sheets but have not included them on the CD's. Leon McAtee has done an excellent job of recreating the Quickie appendices and even correcting some errors along the way, but no one has yet done the same for the Q2/200.) No one has the original spar layup schedules for the carbon spars, but Peter Harris reverse engineered them (with the help of John ten Have) and will gladly sell you a new set. BTW, if you follow the instructions and plans you don't need to know whether the sweep is 3.5" or 3.79"! David J. Gall -----Original Message----- |
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Sam Hoskins <shoskins@...>
I might possibly have access to the Q-200 appendix sheets/templates. Let me
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check in the next couple of days. Sam _____ From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of David J. Gall Sent: Thursday, October 05, 2006 2:37 AM To: Q-LIST@... Subject: RE: [Q-LIST] Lay up sched? Jason, You do not have the complete plans. What you have is three pages that start with the words "Dear Builder." The complete LS(1) plans include this document, but are also composed of seven more pages of text entitled "Construction of LS(1)-0417MOD Canard," plus four(?) appendix sheets. The Quickie (not Q2/200) LS(1) plans are the same, plus another three page document entitled "Construction of LS(1)-0417MOD Quickie Canard." Note inclusion of the word "Quickie." I publish a CD with all of the Q2/200 plans and QAC newsletters, but without any of the full-size templates (appendix sheets). It is available at http://QuickieSourc <http://QuickieSource.com.> e.com. (If I could get my hands on ORIGINALS of the LS(1) appendix sheets for both the Q200 and the Quickie I'd happily digitize them and return them to their owner, then publish them in .pdf and .dxf format. I already have all the other appendix sheets but have not included them on the CD's. Leon McAtee has done an excellent job of recreating the Quickie appendices and even correcting some errors along the way, but no one has yet done the same for the Q2/200.) No one has the original spar layup schedules for the carbon spars, but Peter Harris reverse engineered them (with the help of John ten Have) and will gladly sell you a new set. BTW, if you follow the instructions and plans you don't need to know whether the sweep is 3.5" or 3.79"! David J. Gall -----Original Message-----[mailto:Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com] On Behalf Of Jason Muscat |
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Jason Muscat <fifty101fifty@...>
Good to know and thank you for all the info. I will check out your CD (it will be the 5th cd on the q i have purchased now)
>BTW, if you follow the instructions and plans you don't need to know whether the sweep is 3.5" or 3.79"!> Every one says this "if you follow the instructions and plans you don't need ...." however, i have heard over a dozen instances of people having to cut off there canard because it didn’t have the correct incidence in it (a tinny 2* diff) or they had to tear there canard apart because it didn’t have the proper sweep in it, or cut of the wing because the incidence stall characteristics poor. Why is every one so reluctant to hard numbers so they can Q&A there work? It is obvious that the plans have holes, and are very hard to fallow. And if one were use them as a means of Q&A, one would have to rejig all his assemblies the way they were originally assembled and then re measure. Ridicules. Just to put it in perspective this .3* diff in spar discrepancy can case a 1.25” shift of the canard tips moving the CG .5” as well as changing the weight distribution on the gear (detrimental if you have the t-dragger design). Doesn’t look like much but if this is the norm (and i am seeing it is) and there are as little as 3 (normally 5-10) discrepancies like this, the CG (or any other parameter) can change as much as 2-3”. Look at the history of home builds, it is plagued with builders not putting in the correct sweep, incidence, washout, etc and I would pose that its not just from the builders lack of “fallowing the plans,” but it is very hard to Q&A an aircraft during assembly if you have no useful measurements just a pile of foam blanks and some profiles. Thanx again Jason "David J. Gall" <David@...> wrote: Jason, You do not have the complete plans. What you have is three pages that start with the words "Dear Builder." The complete LS(1) plans include this document, but are also composed of seven more pages of text entitled "Construction of LS(1)-0417MOD Canard," plus four(?) appendix sheets. The Quickie (not Q2/200) LS(1) plans are the same, plus another three page document entitled "Construction of LS(1)-0417MOD Quickie Canard." Note inclusion of the word "Quickie." I publish a CD with all of the Q2/200 plans and QAC newsletters, but without any of the full-size templates (appendix sheets). It is available at http://QuickieSource.com. (If I could get my hands on ORIGINALS of the LS(1) appendix sheets for both the Q200 and the Quickie I'd happily digitize them and return them to their owner, then publish them in .pdf and .dxf format. I already have all the other appendix sheets but have not included them on the CD's. Leon McAtee has done an excellent job of recreating the Quickie appendices and even correcting some errors along the way, but no one has yet done the same for the Q2/200.) No one has the original spar layup schedules for the carbon spars, but Peter Harris reverse engineered them (with the help of John ten Have) and will gladly sell you a new set. BTW, if you follow the instructions and plans you don't need to know whether the sweep is 3.5" or 3.79"! David J. Gall -----Original Message----- --------------------------------- Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1¢/min. [Non-text portions of this message have been removed] |
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Jason,
Why in the world are you trying to make building this airplane more difficult or complicated than it has to be. Do you currently own a Q kit or plane you're rebuilding? Are you starting from scratch? Give us a little insight. Remember we've only been at this 25 years. I bought my plans/kit in 1981 like a lot of others, built it per plan and added the enhancing mods package now commonly known as the "Jim/Bob Six Pack" (to tame the handling characteristics). Guess what, IT FLEW FINE! I didn't have do any rework because I misinterpeted QAC's simplistic plans or didn't understand them. BTW, this was all done without any internet or support from anyone as the factory was defunct and dealers weren't that supportive. I didn't even know Farnam was building his plane 15 miles away. Today you simply a keystroke away from an answer. I had no prior building experience and didn't know anything about glass layups. If you think you're as much an aeronautical engineer as Bert Rutan or Tom Jewett then by all means create something new, just don't try calling it a Quickie. If you are serious about this plane, then get on with it. Help is out here but you won't get any help from this group comming off as an authority on something you haven't done. There are already to many of us that have! Regards, Jim Patillo N46JP Q200 800 hours in type. --- In Q-LIST@..., Jason Muscat <fifty101fifty@...> wrote: your CD (it will be the 5th cd on the q i have purchased now) to know whether the sweep is 3.5" or 3.79"!>you don't need ...." however, i have heard over a dozen instances of people having to cut off there canard because it didn't have the correct incidence in it (a tinny 2* diff) or they had to tear there canard apart because it didn't have the proper sweep in it, or cut of the wing because the incidence stall characteristics poor. Why is every one so reluctant to hard numbers so they can Q&A there work? It is obvious that the plans have holes, and are very hard to fallow. And if one were use them as a means of Q&A, one would have to rejig all his assemblies the way they were originally assembled and then re measure. Ridicules. Just to put it in perspective this .3* diff in spar discrepancy can case a 1.25" shift of the canard tips moving the CG .5" as well as changing the weight distribution on the gear (detrimental if you have the t-dragger design). Doesn't look like much but if this is the norm (and i am seeing it is) and there are as little as 3 (normally 5-10)discrepancies like this, the CG (or any other parameter) can change as much as 2-3". Look at the history of home builds, it is plagued with builders not putting in the correct sweep, incidence, washout, etc and I would pose that its not just from the builders lack of "fallowing the plans," but it is very hard to Q&A an aircraft during assembly if you have no useful measurements just a pile of foam blanks and some profiles. that start with the words "Dear Builder." The complete LS(1) plans includethis document, but are also composed of seven more pages of textentitled "Construction of LS(1)-0417MOD Canard," plus four(?) appendixsheets. The Quickie (not Q2/200) LS(1) plans are the same, plus another threepage document entitled "Construction of LS(1)-0417MOD Quickie Canard."Note inclusion of the word "Quickie."but without any of the full-size templates (appendix sheets). It is availableat http://QuickieSource.com.for both the Q200 and the Quickie I'd happily digitize them and return themto their owner, then publish them in .pdf and .dxf format. I already haveall the other appendix sheets but have not included them on the CD's. LeonMcAtee has done an excellent job of recreating the Quickie appendices andeven correcting some errors along the way, but no one has yet done thesame for the Q2/200.)but Peter Harris reverse engineered them (with the help of John ten Have)and will gladly sell you a new set.know whether the sweep is 3.5" or 3.79"!Great rates starting at 1¢/min.
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Peter Harris <peterjfharris@...>
David,
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I have an original copy of the LS1 plans headed "Construction of LS(1) 0417 MOD CANARD, 2 pages of description and pics commencing with "Jigging the canard" plus 10 pages of drawings by Larry Lombard dated in 1983.. If this is what you need I could send you a copy if you don't find one closer to home. Or maybe scan them and send to you. (There are no airfoils included just hand sketches) There is also a release about mods to the firewall to beef it up for the 0-200 engine. Cheers, Peter _____ From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of David J. Gall Sent: Thursday, 5 October 2006 5:37 PM To: Q-LIST@... Subject: RE: [Q-LIST] Lay up sched? Jason, You do not have the complete plans. What you have is three pages that start with the words "Dear Builder." The complete LS(1) plans include this document, but are also composed of seven more pages of text entitled "Construction of LS(1)-0417MOD Canard," plus four(?) appendix sheets. The Quickie (not Q2/200) LS(1) plans are the same, plus another three page document entitled "Construction of LS(1)-0417MOD Quickie Canard." Note inclusion of the word "Quickie." I publish a CD with all of the Q2/200 plans and QAC newsletters, but without any of the full-size templates (appendix sheets). It is available at http://QuickieSourc <http://QuickieSource.com.> e.com. (If I could get my hands on ORIGINALS of the LS(1) appendix sheets for both the Q200 and the Quickie I'd happily digitize them and return them to their owner, then publish them in .pdf and .dxf format. I already have all the other appendix sheets but have not included them on the CD's. Leon McAtee has done an excellent job of recreating the Quickie appendices and even correcting some errors along the way, but no one has yet done the same for the Q2/200.) No one has the original spar layup schedules for the carbon spars, but Peter Harris reverse engineered them (with the help of John ten Have) and will gladly sell you a new set. BTW, if you follow the instructions and plans you don't need to know whether the sweep is 3.5" or 3.79"! David J. Gall -----Original Message-----[mailto:Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com] On Behalf Of Jason Muscat |
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Sam Hoskins <shoskins@...>
Hold on there, Jimbo. I have a feeling that Jason may be a multitalented
person. I think it may be great if someone were to create a true representation of the plane. Sure, it is slowing down his building time, but someone may benefit in the long run. Having said that, I wonder if he read the story about my autopilot? http://samhoskins.blogspot.com/2006_01_01_samhoskins_archive.html Sam _____ From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of Jim Patillo Sent: Thursday, October 05, 2006 12:16 PM To: Q-LIST@... Subject: [Q-LIST] Re: Lay up sched? Jason, Why in the world are you trying to make building this airplane more difficult or complicated than it has to be. Do you currently own a Q kit or plane you're rebuilding? Are you starting from scratch? Give us a little insight. Remember we've only been at this 25 years. I bought my plans/kit in 1981 like a lot of others, built it per plan and added the enhancing mods package now commonly known as the "Jim/Bob Six Pack" (to tame the handling characteristics). Guess what, IT FLEW FINE! I didn't have do any rework because I misinterpeted QAC's simplistic plans or didn't understand them. BTW, this was all done without any internet or support from anyone as the factory was defunct and dealers weren't that supportive. I didn't even know Farnam was building his plane 15 miles away. Today you simply a keystroke away from an answer. I had no prior building experience and didn't know anything about glass layups. If you think you're as much an aeronautical engineer as Bert Rutan or Tom Jewett then by all means create something new, just don't try calling it a Quickie. If you are serious about this plane, then get on with it. Help is out here but you won't get any help from this group comming off as an authority on something you haven't done. There are already to many of us that have! Regards, Jim Patillo N46JP Q200 800 hours in type. --- In Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com, Jason Muscat <fifty101fifty@...> wrote: your CD (it will be the 5th cd on the q i have purchased now) to know whetherBTW, if you follow the instructions and plans you don't need the sweep is 3.5" or 3.79"!>you don't need ...." however, i have heard over a dozen instances of people having to cut off there canard because it didn't have the correct incidence in it (a tinny 2* diff) or they had to tear there canard apart because it didn't have the proper sweep in it, or cut of the wing because the incidence stall characteristics poor. Why is every one so reluctant to hard numbers so they can Q&A there work? It is obvious that the plans have holes, and are very hard to fallow. And if one were use them as a means of Q&A, one would have to rejig all his assemblies the way they were originally assembled and then re measure. Ridicules. Just to put it in perspective this .3* diff in spar discrepancy can case a 1.25" shift of the canard tips moving the CG .5" as well as changing the weight distribution on the gear (detrimental if you have the t-dragger design). Doesn't look like much but if this is the norm (and i am seeing it is) and there are as little as 3 (normally 5-10)discrepancies like this, the CG (or any other parameter) can change as much as 2-3". Look at the history of home builds, it is plagued with builders not putting in the correct sweep, incidence, washout, etc and I would pose that its not just from the builders lack of "fallowing the plans," but it is very hard to Q&A an aircraft during assembly if you have no useful measurements just a pile of foam blanks and some profiles. that start with the words "Dear Builder." The complete LS(1) plans includethis document, but are also composed of seven more pages of textentitled "Construction of LS(1)-0417MOD Canard," plus four(?) appendixsheets. The Quickie (not Q2/200) LS(1) plans are the same, plus another threepage document entitled "Construction of LS(1)-0417MOD Quickie Canard."Note inclusion of the word "Quickie."but without any of the full-size templates (appendix sheets). It is availableat http://QuickieSourc <http://QuickieSource.com.> e.com.for both the Q200 and the Quickie I'd happily digitize them and return themto their owner, then publish them in .pdf and .dxf format. I already haveall the other appendix sheets but have not included them on the CD's. LeonMcAtee has done an excellent job of recreating the Quickie appendices andeven correcting some errors along the way, but no one has yet done thesame for the Q2/200.)but Peter Harris reverse engineered them (with the help of John ten Have)and will gladly sell you a new set.know whether the sweep is 3.5" or 3.79"![mailto:Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com] Great rates starting at 1¢/min.On Behalf Of Jason Muscat
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Jason Muscat <fifty101fifty@...>
Thanx Sam. I did read your site on the auto pilot and point well taken. But with that, who do i believe with the wing sweep then, the plans or the guy that has a mill + hours in type that says something different? Take it easy guys, sorry to offend you.
Sam Hoskins <shoskins@...> wrote: Hold on there, Jimbo. I have a feeling that Jason may be a multitalented person. I think it may be great if someone were to create a true representation of the plane. Sure, it is slowing down his building time, but someone may benefit in the long run. Having said that, I wonder if he read the story about my autopilot? http://samhoskins.blogspot.com/2006_01_01_samhoskins_archive.html Sam _____ From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of Jim Patillo Sent: Thursday, October 05, 2006 12:16 PM To: Q-LIST@... Subject: [Q-LIST] Re: Lay up sched? Jason, Why in the world are you trying to make building this airplane more difficult or complicated than it has to be. Do you currently own a Q kit or plane you're rebuilding? Are you starting from scratch? Give us a little insight. Remember we've only been at this 25 years. I bought my plans/kit in 1981 like a lot of others, built it per plan and added the enhancing mods package now commonly known as the "Jim/Bob Six Pack" (to tame the handling characteristics). Guess what, IT FLEW FINE! I didn't have do any rework because I misinterpeted QAC's simplistic plans or didn't understand them. BTW, this was all done without any internet or support from anyone as the factory was defunct and dealers weren't that supportive. I didn't even know Farnam was building his plane 15 miles away. Today you simply a keystroke away from an answer. I had no prior building experience and didn't know anything about glass layups. If you think you're as much an aeronautical engineer as Bert Rutan or Tom Jewett then by all means create something new, just don't try calling it a Quickie. If you are serious about this plane, then get on with it. Help is out here but you won't get any help from this group comming off as an authority on something you haven't done. There are already to many of us that have! Regards, Jim Patillo N46JP Q200 800 hours in type. --- In Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com, Jason Muscat <fifty101fifty@...> wrote: your CD (it will be the 5th cd on the q i have purchased now) to know whetherBTW, if you follow the instructions and plans you don't need the sweep is 3.5" or 3.79"!>you don't need ...." however, i have heard over a dozen instances of people having to cut off there canard because it didn't have the correct incidence in it (a tinny 2* diff) or they had to tear there canard apart because it didn't have the proper sweep in it, or cut of the wing because the incidence stall characteristics poor. Why is every one so reluctant to hard numbers so they can Q&A there work? It is obvious that the plans have holes, and are very hard to fallow. And if one were use them as a means of Q&A, one would have to rejig all his assemblies the way they were originally assembled and then re measure. Ridicules. Just to put it in perspective this .3* diff in spar discrepancy can case a 1.25" shift of the canard tips moving the CG .5" as well as changing the weight distribution on the gear (detrimental if you have the t-dragger design). Doesn't look like much but if this is the norm (and i am seeing it is) and there are as little as 3 (normally 5-10)discrepancies like this, the CG (or any other parameter) can change as much as 2-3". Look at the history of home builds, it is plagued with builders not putting in the correct sweep, incidence, washout, etc and I would pose that its not just from the builders lack of "fallowing the plans," but it is very hard to Q&A an aircraft during assembly if you have no useful measurements just a pile of foam blanks and some profiles. that start with the words "Dear Builder." The complete LS(1) plans includethis document, but are also composed of seven more pages of textentitled "Construction of LS(1)-0417MOD Canard," plus four(?) appendixsheets. The Quickie (not Q2/200) LS(1) plans are the same, plus another threepage document entitled "Construction of LS(1)-0417MOD Quickie Canard."Note inclusion of the word "Quickie."but without any of the full-size templates (appendix sheets). It is availableat http://QuickieSourc <http://QuickieSource.com.> e.com.for both the Q200 and the Quickie I'd happily digitize them and return themto their owner, then publish them in .pdf and .dxf format. I already haveall the other appendix sheets but have not included them on the CD's. LeonMcAtee has done an excellent job of recreating the Quickie appendices andeven correcting some errors along the way, but no one has yet done thesame for the Q2/200.)but Peter Harris reverse engineered them (with the help of John ten Have)and will gladly sell you a new set.know whether the sweep is 3.5" or 3.79"![mailto:Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com] Great rates starting at 1¢/min.On Behalf Of Jason Muscat --------------------------------- Stay in the know. Pulse on the new Yahoo.com. Check it out. [Non-text portions of this message have been removed] |
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David J. Gall
Jason,
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Due to dihedral, the measurement of sweep is not as straightforward as it may at first appear. The plans don't say anything about sweep, they only say to put some reference marks on the jigging templates in a straight line. If you do this, you then end up building the canard with the correct sweep. What is the true sweep of the canard? NOBODY knows. Nobody CARES ('cept you and me). What they do care about is that the canard was built "correctly." If you look at the three-view of the airplane you will see that the trailing edge of the canard is a straight line from tip to tip. THAT is the real sweep of the canard, and I'd bet $100 that the designers themselves didn't know what the true sweep of the quarter chord line of the canard is.... Now, two guys going out to the hangar to measure the sweep on Sam Hoskins' plane (for example) will probably come back with two different measurements, partly because one might forget to level the plane first and partly because they might pick different places to take their measurements. For instance, do you measure the sweep from the centerline or from the wing root, and do you extrapolate the leading edge sweep into the fuselage cavity or just assume a constant chord for that portion of the wing embedded in the fuselage. These and other considerations make it VERY difficult to assign a particular number to the sweep of such a flying surface and to be able to definitively defend that number as THE correct number against all other contenders. Better to just eschew such "hard numbers" as too hard to bother with. The "hard numbers" you really want are those that will allow you to BUILD the plane. The plans' scheme of level lines and reference marks allow that without all the hullabaloo about imaginary engineering references. And if you're worried about modeling the thing for X-Plane, keep in mind that the great analog computer in the sky is a much better wind tunnel than any computer will ever be. David J. Gall BSAE TBP P.S. The answer to your question is to believe the plans. The guy with the mill and thousands of hours in type isn't "wrong," just irrelevant. Like the trig functions on your calculator are irrelevant to building one of these planes. -----Original Message----- |
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Mike Perry <dmperry1012@...>
FWIW:
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Dave is right, most flying planes were just "built to plans" and flew OK -- actually, most flew great, it was the landing . . . -- anyway, most flew great based on the plans . However, MY plans, "Construction of LS(1) 0417 Mod Canard" (page 1) clearly state: "Trial fit both spars at trailing edges . . . Some custom fitting will likely be required @ B.L. '0-0'. Note, 3.5 deg + sweep aft of spars at outboard tips." (emphasis added) Note well: this is the sweep of the SPAR in the jigging templates, not the sweep of the canard, but that is the sweep of 3.5 deg. occasionally noted in this discussion. Also: I am more aware of this than anyone as the ¿Proud? owner of a canard built with the spar straight :-( Mike Perry At 09:50 PM 10/5/2006 -0700, Dave Gall wrote:
Jason, |
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David J. Gall
Peter,
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From your description this sounds similar to but different from what I have. Could you send me a quick low-resolution black-and-white scan of these documents so that I can compare with what I have? If different, I'd then ask you for better scans.... Thank you, David J. Gall -----Original Message----- |
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Doug Humble <hawkidoug@...>
I sure like the way you explain things David! Glad you're out there.
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Doug "Hawkeye" Humble A Sign Above www.asignabove.net Omaha NE N25974 ----- Original Message -----
From: David J. Gall To: Q-LIST@... Sent: Thursday, October 05, 2006 11:50 PM Subject: RE: [Q-LIST] Re: Lay up sched? Jason, Due to dihedral, the measurement of sweep is not as straightforward as it may at first appear. The plans don't say anything about sweep, they only say to put some reference marks on the jigging templates in a straight line. If you do this, you then end up building the canard with the correct sweep. What is the true sweep of the canard? NOBODY knows. Nobody CARES ('cept you and me). What they do care about is that the canard was built "correctly." If you look at the three-view of the airplane you will see that the trailing edge of the canard is a straight line from tip to tip. THAT is the real sweep of the canard, and I'd bet $100 that the designers themselves didn't know what the true sweep of the quarter chord line of the canard is.... Now, two guys going out to the hangar to measure the sweep on Sam Hoskins' plane (for example) will probably come back with two different measurements, partly because one might forget to level the plane first and partly because they might pick different places to take their measurements. For instance, do you measure the sweep from the centerline or from the wing root, and do you extrapolate the leading edge sweep into the fuselage cavity or just assume a constant chord for that portion of the wing embedded in the fuselage. These and other considerations make it VERY difficult to assign a particular number to the sweep of such a flying surface and to be able to definitively defend that number as THE correct number against all other contenders. Better to just eschew such "hard numbers" as too hard to bother with. The "hard numbers" you really want are those that will allow you to BUILD the plane. The plans' scheme of level lines and reference marks allow that without all the hullabaloo about imaginary engineering references. And if you're worried about modeling the thing for X-Plane, keep in mind that the great analog computer in the sky is a much better wind tunnel than any computer will ever be. David J. Gall BSAE TBP P.S. The answer to your question is to believe the plans. The guy with the mill and thousands of hours in type isn't "wrong," just irrelevant. Like the trig functions on your calculator are irrelevant to building one of these planes. > -----Original Message----- > From: Q-LIST@... [mailto:Q-LIST@...] > On Behalf Of Jason Muscat > Sent: Thursday, October 05, 2006 9:17 PM > To: Q-LIST@... > Subject: RE: [Q-LIST] Re: Lay up sched? > > Thanx Sam. I did read your site on the auto pilot and point > well taken. But with that, who do i believe with the wing > sweep then, the plans or the guy that has a mill + hours in > type that says something different? Take it easy guys, sorry > to offend you. > > Sam Hoskins <shoskins@...> wrote: Hold on > there, Jimbo. I have a feeling that Jason may be a multitalented > person. I think it may be great if someone were to create a > true representation of the plane. Sure, it is slowing down > his building time, but someone may benefit in the long run. > > Having said that, I wonder if he read the story about my autopilot? > > http://samhoskins.blogspot.com/2006_01_01_samhoskins_archive.html > > Sam |
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Sam,
I'm sure Jason Muscat is quite talanted and a very capable fella. What he's already done with his Q website is helpful. That's wasn't my point. Jason any contribution you make is welcomed and greatly appreciated. Jim P. --- In Q-LIST@..., "Sam Hoskins" <shoskins@...> wrote: multitalented person. I think it may be great if someone were to create a truetime, but someone may benefit in the long run.Behalf Of Jim Patillo |
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Peter Harris <peterjfharris@...>
David,
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I will get it scanned. Correction.. there are 8 pages of sketches and 2 pages of text. Peter _____ From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of David J. Gall Sent: Friday, 6 October 2006 4:46 PM To: Q-LIST@... Subject: RE: [Q-LIST] Lay up sched? Peter, From your description this sounds similar to but different from what I have. Could you send me a quick low-resolution black-and-white scan of these documents so that I can compare with what I have? If different, I'd then ask you for better scans.... Thank you, David J. Gall -----Original Message-----[mailto:Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com] On Behalf Of Peter Harris |
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Peter Harris <peterjfharris@...>
Mike my plans say that also but we set up the joined spars with the upper
spar cap glassed in, the spars were attached temporarily by glass to the jigging templates. Then the foam core sections were offered up to the spar trial fit at first dry. It is important to know that the spars will be a tight fit in the cores and care is needed to use WET micro slurry and be sure to bed each core fully, otherwise the spar will be exposed when you sand off the excess core joggle then spoiling the airfoil shape. My original canard suffered this problem which was corrected by additional filler. Peter _____ From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of Mike Perry Sent: Friday, 6 October 2006 3:31 PM To: Q-LIST@... Subject: RE: [Q-LIST] Re: Lay up sched? FWIW: Dave is right, most flying planes were just "built to plans" and flew OK -- actually, most flew great, it was the landing . . . -- anyway, most flew great based on the plans . However, MY plans, "Construction of LS(1) 0417 Mod Canard" (page 1) clearly state: "Trial fit both spars at trailing edges . . . Some custom fitting will likely be required @ B.L. '0-0'. Note, 3.5 deg + sweep aft of spars at outboard tips." (emphasis added) Note well: this is the sweep of the SPAR in the jigging templates, not the sweep of the canard, but that is the sweep of 3.5 deg. occasionally noted in this discussion. Also: I am more aware of this than anyone as the ¿Proud? owner of a canard built with the spar straight :-( Mike Perry At 09:50 PM 10/5/2006 -0700, Dave Gall wrote: Jason,say to put some reference marks on the jigging templates in a straight line..If you do this, you then end up building the canard with the correct sweep..trailing edge of the canard is a straight line from tip to tip. THAT is the realmeasurements, partly because one might forget to level the plane first and partly becausethe trig functions on your calculator are irrelevant to building one of these<mailto:Q-LIST%40yahoogroups.com> com [mailto:Q-LIST@yahoogroups.. <mailto:Q-LIST%40yahoogroups.com> com]<mailto:Q-LIST%40yahoogroups.com> comOn Behalf Of Jason Muscat <mailto:shoskins%40mchsi.com> com> wrote:Subject: RE: [Q-LIST] Re: Lay up sched? Hold on<http://samhoskins.blogspot.com/2006_01_01_samhoskins_archive.html>there, Jimbo. I have a feeling that Jason may be a multitalented<http://samhoskins. blogspot.com/2006_01_01_samhoskins_archive.html>http://samhoskins. <http://samhoskins.blogspot.com/2006_01_01_samhoskins_archive.html> blogspot.com/2006_01_01_samhoskins_archive.html [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] |
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Peter Harris <peterjfharris@...>
David
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If I can have your email address I will send you the LS(1) construction details in a Zip file. You can get me on peterjfharris@.... Peter _____ From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of David J. Gall Sent: Friday, 6 October 2006 4:46 PM To: Q-LIST@... Subject: RE: [Q-LIST] Lay up sched? Peter, From your description this sounds similar to but different from what I have. Could you send me a quick low-resolution black-and-white scan of these documents so that I can compare with what I have? If different, I'd then ask you for better scans.... Thank you, David J. Gall -----Original Message-----[mailto:Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com] On Behalf Of Peter Harris |
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David J. Gall
Peter,
Email: David@... David J. Gall |
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Peter Harris <peterjfharris@...>
David,
Did you receive and open the LS(1) zip file ? Peter _____ From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of David J. Gall Sent: Saturday, 7 October 2006 4:20 PM To: Q-LIST@... Subject: RE: [Q-LIST] Lay up sched? Peter, Email: David@QuickieSource <mailto:David%40QuickieSource.com> .com David J. Gall |
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