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Sparrow strainer stall conundrum
Brian, Can you make a copy or scan of those instructions for the archives? The LS(1) canard plans that I have show different dimensions. Thank you, David J. Gall
Brian, Can you make a copy or scan of those instructions for the archives? The LS(1) canard plans that I have show different dimensions. Thank you, David J. Gall
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David J. Gall
· #53929
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Sparrow strainer stall conundrum
Just playing catch up on the last two weeks of frantic Q-LIST activity…. OMG, Michael, the “Mad Rocket Scientist” (Drew) is a nice enough guy but he’s wrong fully ninety percent of the time when it co
Just playing catch up on the last two weeks of frantic Q-LIST activity…. OMG, Michael, the “Mad Rocket Scientist” (Drew) is a nice enough guy but he’s wrong fully ninety percent of the time when it co
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David J. Gall
· #53927
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Sparrow Strainer
Ian, Unfortunately, springs – whether gas springs or coil springs – are exactly the wrong choice here. I’m not going to go into a long dissertation; there are ample textbooks on the topic. Any compreh
Ian, Unfortunately, springs – whether gas springs or coil springs – are exactly the wrong choice here. I’m not going to go into a long dissertation; there are ample textbooks on the topic. Any compreh
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David J. Gall
· #53880
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Tuft test video
Jay, You’re too kind <blush>. Start with CP59 page 5, titled “The Bungee Elevator Trim System.” This talks about elevator shape and trim speed. Then read CP43 page 1 to put the CP59 comments in contex
Jay, You’re too kind <blush>. Start with CP59 page 5, titled “The Bungee Elevator Trim System.” This talks about elevator shape and trim speed. Then read CP43 page 1 to put the CP59 comments in contex
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David J. Gall
· #53787
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Tuft test video
Jay, I concur: Eliminate the sparrow strainers (they’re a hack anyway) and, instead, design an elevator that has a small amount of reflex on its trailing edge. That is exactly what John Roncz did on h
Jay, I concur: Eliminate the sparrow strainers (they’re a hack anyway) and, instead, design an elevator that has a small amount of reflex on its trailing edge. That is exactly what John Roncz did on h
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David J. Gall
· #53771
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Large Appendix Sheets
SW sucks at that. Try Rhino or some other software as an intermediary conversion. Or just ditch SW; it can’t do good aerodynamic surfacing anyway.
SW sucks at that. Try Rhino or some other software as an intermediary conversion. Or just ditch SW; it can’t do good aerodynamic surfacing anyway.
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David J. Gall
· #53568
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Large Appendix Sheets
Are you drawing your airfoil templates from coordinates or just tracing the scanned documents? I’ve encountered so much distortion from scans that I’ve taken to recreating the drawings from raw data.
Are you drawing your airfoil templates from coordinates or just tracing the scanned documents? I’ve encountered so much distortion from scans that I’ve taken to recreating the drawings from raw data.
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David J. Gall
· #53567
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Large Appendix Sheets
Corbin, NEVERMIND. I guess I hit “send” too soon; I just found them in a subfolder I didn’t know I had. <shrug>
Corbin, NEVERMIND. I guess I hit “send” too soon; I just found them in a subfolder I didn’t know I had. <shrug>
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David J. Gall
· #53562
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Large Appendix Sheets
Corbin, if you’d be willing to share your scans it would save me some time. I intend to redraw mine in CAD before I build anything from them….
Corbin, if you’d be willing to share your scans it would save me some time. I intend to redraw mine in CAD before I build anything from them….
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David J. Gall
· #53561
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Large Appendix Sheets
Good question. I have mine but I’m guarding them jealously. What do you need?
Good question. I have mine but I’m guarding them jealously. What do you need?
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David J. Gall
· #53555
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Ground AoA/ tailwheel angle
Mike, why are you looking at the main wing here? It’s the canard that controls liftoff speed….
Mike, why are you looking at the main wing here? It’s the canard that controls liftoff speed….
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David J. Gall
· #53430
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Ground AoA/ tailwheel angle
Since we’re only interested in “ground angle of attack” the analysis centers on the canard with “flap extended” (full aft stick). Set the “ground angle of attack” via the tailspring installed angle/le
Since we’re only interested in “ground angle of attack” the analysis centers on the canard with “flap extended” (full aft stick). Set the “ground angle of attack” via the tailspring installed angle/le
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By
David J. Gall
· #53429
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Ground AoA/ tailwheel angle
TAZ, Do the Jim-Bob six-pack (all six), do the alignment, and don't worry about the "ground angle of attack." That was a Gene Sheehan red herring that never made any sense except to deflect customer c
TAZ, Do the Jim-Bob six-pack (all six), do the alignment, and don't worry about the "ground angle of attack." That was a Gene Sheehan red herring that never made any sense except to deflect customer c
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David J. Gall
· #53416
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Airport Operations at Commercial airports
“The badge manager and I had a discussion. He believes that all pilots flying have some sort of training and badges that allow them to walk on the ramp.” Your badge manager CLEARLY failed the TSA trai
“The badge manager and I had a discussion. He believes that all pilots flying have some sort of training and badges that allow them to walk on the ramp.” Your badge manager CLEARLY failed the TSA trai
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David J. Gall
· #53415
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Quickie Q1 - Elevator Foam cut
Eugen, 1) Keep the level lines parallel. 2) Keep the template trailing edges flush with a line parallel to the trimmed edge of the foam block. 3) Keep the level lines at the same height above the tabl
Eugen, 1) Keep the level lines parallel. 2) Keep the template trailing edges flush with a line parallel to the trimmed edge of the foam block. 3) Keep the level lines at the same height above the tabl
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David J. Gall
· #53071
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Quickie Q1 - Canard
Eugen, I think you still do not have the centersection block correct. It’s hard to tell from SolidWorks screen shots without perspective turned on. In front view the block should be a trapezoidal shap
Eugen, I think you still do not have the centersection block correct. It’s hard to tell from SolidWorks screen shots without perspective turned on. In front view the block should be a trapezoidal shap
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By
David J. Gall
· #52915
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Quickie Q1 - Canard
Eugen, Additional to my last note, see page 10-5. The aft “elevator slot cores” are also removed along the line 33-F-G-H-I-32 for the remainder of the canard beyond the center section, but only AFTER
Eugen, Additional to my last note, see page 10-5. The aft “elevator slot cores” are also removed along the line 33-F-G-H-I-32 for the remainder of the canard beyond the center section, but only AFTER
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David J. Gall
· #52889
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Quickie Q1 - Canard
Eugen, Read the plans as though the following image is a single page. The first paragraph shown here refers to the LAST drawing shown here and a drawing not shown here that is at the bottom of page 5-
Eugen, Read the plans as though the following image is a single page. The first paragraph shown here refers to the LAST drawing shown here and a drawing not shown here that is at the bottom of page 5-
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David J. Gall
· #52888
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Quickie Q1 Canard and wing foam cut
Ha-ha! Touche! Yes, of course you are right. Not owning a -18°C freezer, I was thinking of room temperature cure low-vacuum consolidation to achieve ~50% resin content, not prepreg…. I can’t wait to s
Ha-ha! Touche! Yes, of course you are right. Not owning a -18°C freezer, I was thinking of room temperature cure low-vacuum consolidation to achieve ~50% resin content, not prepreg…. I can’t wait to s
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David J. Gall
· #52662
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Quickie Q1 Canard and wing foam cut
Flax is inferior to highly-crystalline cellulose fiber for exactly the reasons mentioned below. Highly-crystalline cellulose fiber is nearly equivalent to E-glass in all respects except weight -- glas
Flax is inferior to highly-crystalline cellulose fiber for exactly the reasons mentioned below. Highly-crystalline cellulose fiber is nearly equivalent to E-glass in all respects except weight -- glas
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By
David J. Gall
· #52655
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