RE: [RCSE] airfoils in AutoCAD

2003-09-22 Thread Oleg Golovidov
Thanks to all who replied! It sounds like it is easier than I expected. A whole series of coordinates can be pasted from a text file right into the command window with the SPLINE command. No need to paste them one by one! Oleg. RCSE-List facilities provided by Model Airplane News. Send "subscri

[RCSE] airfoils in AutoCAD

2003-09-22 Thread Oleg Golovidov
This has been covered before I am sure but I could not find anything in the archives... I am trying to learn Autocad basics and the obvious problem is how does one plot airfoils? More precisely, how can I import a file with airfoil coordinates and use it with the SPLINE command? Thanks in advanc

RE: [RCSE] airfoils for low Reynolds numbers

2002-09-04 Thread Lincoln Ross
Where are you finding data on the web that makes these look good at low RE? If I remember my NACA nomenclature, those are laminar flow foils which ought to be awful at our Reynold's numbers. If you want to use them you should build a full size plane, unless I'm just full of it. BTW, what is task o

[RCSE] airfoils for low Reynolds numbers

2002-08-31 Thread Wolfram Gothe
Hi guys, those of you who are more familiar with the detailed behaviour of airfoils in the low Reynolds numbers regime: could you tell me which airfoils are suitable for a small slope plane with chords between 5 1/2 inches at root and 3 3/8 inches at tip - I'm especially interested for an airfoil

Re: [RCSE] airfoils for EPP wings

2002-02-08 Thread Keith Watson
(pardon me if this is a duplicate, I didn't see the previous on get through...) I do like the carefree nature of EPP wings. Here is a tip for when you start flying with a composite wing -- learn to catch the plane by the nose. Now that I do that I'm much less concerned about putting (more) dent

Re: [RCSE] airfoils for EPP wings

2002-02-08 Thread Keith Watson
I do like the carefree nature of EPP wings. Here is a tip for when you start flying with a composite wing -- learn to catch the plane by the nose. Now that I do that I'm much less concerned about putting (more) dents in my composite wing. I agree that the Goblin and Dizzy Bird wings don't penet

Re: [RCSE] airfoils for EPP wings

2002-02-07 Thread rcsoar4fun
I saw that episode, those both needed to be building planes out of EPP... Kristopher - Original Message - From: "Brett Jaffee" <[EMAIL PROTECTED]> To: "Henke, Steve" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Thursday, February 07, 2002 4:52 P

Re: [RCSE] airfoils for EPP wings

2002-02-07 Thread Brett Jaffee
"Henke, Steve" wrote: > > >Did you ever see the episode of Junkyard Wars where they > built gliders? > > do you mean the bomb drop episode? Actually, there was another one where they built full size man-carrying gliders and launched them off a slope (the idea being to see how far down the slo

RE: [RCSE] airfoils for EPP wings

2002-02-07 Thread Henke, Steve
rom: Andrew E. Mileski [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 07, 2002 1:53 PM To: [EMAIL PROTECTED] Subject: Re: [RCSE] airfoils for EPP wings widlerj wrote: > > So what are your suggestions for a different airfoil bearing in mind > that I can not get or maintain a truly accu

Re: [RCSE] airfoils for EPP wings

2002-02-07 Thread Andrew E. Mileski
widlerj wrote: > > So what are your suggestions for a different airfoil bearing in mind > that I can not get or maintain a truly accurate foil shape? I can > read polar graphs but have no idea how sensitive different airfoils > are to irregularities. *chuckle* Did you ever see the episode of Ju

[RCSE] airfoils for EPP wings

2002-02-07 Thread widlerj
I know the disadvantages of EPP wings such as the difficulty of maintaining a true airfoil, lack of stiffness especially in torsion, "prune skin" and surface imperfections caused by the underlying tape, different behavior in different air temperatures, etc. I have even posted regarding the uns

Re: [RCSE] airfoils

2001-10-03 Thread RCsoarnut
Dudes You guys are taxing my brain and that seems to make it hurt. However, I seem to remember several pages of airfoil profiles and a breif description of each along with practical applications in the old blue NSP Catalog. Denny Maize Polecat Aeroworks (717) 789-0146 [EMAIL PROTECTED] http

RE: [RCSE] airfoils

2001-10-03 Thread Bill Swingle
While a list of airfoils with layman descriptions wouldn't be too difficult to make; your second request is much tougher. Understanding "why certain airfoils are used together blended in a wing and why" is a very large question. There are guys who spend careers doing exactly that. It takes BIG UGL

Re: [RCSE] airfoils

2001-10-03 Thread Mark Miller
I think this information would be handy for most everyone here. It would be nice to have a good description in laymans terms of characteristics. Possibly also a description of why certain airfoils are used together blended in a wing and why. Cheers, Mark http://www.isthmusmodels.com > SD7037 -

[RCSE] Airfoils

2001-03-08 Thread Greg Nuspel
Does anyone know the airfoil coordinates for the Wright Flyer, 747, F-18? I want to cut some examples of these for my son's teacher since they are doing a section on aviation in school. --Greg Nuspel RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requ

[RCSE] Airfoils.

2001-01-10 Thread Klaus K Weiss
I have tried numerous URL addresses for the Selig Airfoil site in the past few days, all with no success. Does anyone have a URL that they know works? thank you. Klaus K Weiss Sydney Australia http://web.one.net.au/~kkw RCSE-List facilities provided by Model Airplane News. Send "subscribe" a