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davidjgall
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Ddavidjgall replied to the thread Plotting Aerofoils for Ribs.Not true for the NACA 4-digit series, at least. From NACA TR-460: Here the "middle" dot on each curve is the normal NACA LE radius...
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Ddavidjgall reacted to mcrae0104's post in the thread Best CAD tool for modeling and simulation on for a homebuilt. with
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^ This. If some form of CAD is a shortcut to bypass acquiring knowledge, the results will not be good. On the other hand, CAD in the... -
DIt would be great to see pics and/or a drawing of your canopy arrangement.
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Ddavidjgall replied to the thread Plotting Aerofoils for Ribs.This is absolutely correct. As Mike Arnold says in his video, he applies a layer of micro approximately 1/8" thick to the entire wing...
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DThe technique illustrated in post #60 simply can not produced a finished wing. I know a lot of pilots think it's finished when the...
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DYou still have TWO discontinuities to be worked fair, even if you Exactly trimmed the lower surface in to a recess in the underlay shape...
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Ddavidjgall replied to the thread Best CAD tool for modeling and simulation on for a homebuilt..It is difficult to advise you on choice of tools without having some indication of your current knowledge of the task. Have you worked...
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Ddavidjgall reacted to rotax618's post in the thread Best CAD tool for modeling and simulation on for a homebuilt. with Like.
If you want a pretty picture, learn Blender, if you want to build a real aeroplane consisting of hundreds of parts which all have to fit...
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Ddavidjgall reacted to mcrae0104's post in the thread Best CAD tool for modeling and simulation on for a homebuilt. with Like.
Meh, unless you are using a CNC mill, 3D modeling (parametric or otherwise) is of marginal value for a one-off design built in a garage...
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Ddavidjgall replied to the thread Plotting Aerofoils for Ribs.That's not the way the Rutan Moldless method works out. The extreme leading edge where the overlap begins is sanded fair before being...
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DTraditional horizontal sliding canopies have parallel rails; often the rear ends stick out proud of the tapering fuselage. To avoid...
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Ddavidjgall reacted to Max Volume's post in the thread Mike Arnold's Ar-6 fuselage plug layup - time-lapse in slow motion with Love.
My camcorder has a "time-lapse" feature that records 3 or 4 frames at regular intervals. We used it to record the layup used in the...
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Ddavidjgall replied to the thread Keeping a swing over canopy open.That won't work unless it's fastened to the airframe and canopy at both ends. I think a setup similar to David Smith's Q2 setup can be...
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Ddavidjgall replied to the thread Keeping a swing over canopy open.The Q2 canopy is similar to the Sonex canopy in both size and mounting; the loads will be similar. The final position of the support...
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Ddavidjgall replied to the thread Plotting Aerofoils for Ribs.The overlap is typically on the lower surface and in the region of the leading edge stagnation point so it is more important that it be...
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