Michael, Other than the general comments about tailoring the elevator hinge moment, I fail to see the relevance of the NLF(1)-0115 or the AS504X to the Quickie line of aircraft. They suffer from the s

Jay, Nice analysis. I’m heartened to see that someone else has independently concluded what I’ve been saying for years: the Roncz R1145MS airfoil is a better choice than the LS-1. The Roncz airfoil al

Hi Jay, I’m glad you asked; I was concerned about the aft shape of your airfoil approaching the trailing edge. It appears that the last ~15% of your shape is convex. That’s a big no-no aft of a hinge

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

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

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

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, 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

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.

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.

Corbin, NEVERMIND. I guess I hit “send” too soon; I just found them in a subfolder I didn’t know I had. <shrug>

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….

Good question. I have mine but I’m guarding them jealously. What do you need?

Mike, why are you looking at the main wing here? It’s the canard that controls liftoff speed….

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

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

“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

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, 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, 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