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  1. Condor

    Foam and aluminum wing?

    The single seater Mitchel A-10 used 0.012" skin and expanded polystyrene foam, the 2 seater T-10 used 0.016" skin on the inboard panels and 0.012" in the outboard panels. Adhesive was Hysol 9410. (It is all from memory, it was long time ago.) Although folks don't like the polystyrene foam, I am...
  2. Condor

    Would you buy a MPG wonder if it was available ?

    Well, 2D exploded views of parts would be a reasonable substitute for 3D models, but as far as copy....I don't know what to say. The world is going toward that everyone wants everything free unfortunately. You may want to do a business model, where you leave out the spar design from the...
  3. Condor

    Would you buy a MPG wonder if it was available ?

    If you notice, I did NOT say SolidWorks 3D, I said a 3D read only eDrawing or 3D PDF copy of the model. You can set up those copies without measurement ability, so no one can copy it. The idea is to be able to identify the parts easily. Whenever I see a plan, it takes me "forever" to see which...
  4. Condor

    Would you buy a MPG wonder if it was available ?

    US $500 max. But it needs to have 3D model in eDrawing or 3D PDF so one can efficiently build it without spending months to understand how it goes together.
  5. Condor

    Sew Dacron?

    wesandflor, Sailers use this catalog to saw sails. http://www.sailrite.com/ You will need to create mylar patterns for accurate work and need to use double sided tape to keep the pieces together before sawing.
  6. Condor

    Robin Ultralight

    That is exactly what I was thinking. Except when you go for a 20 feet or so wingspan, you will bust the ultralight performance limits. But that is what the LSA category is for. But I don't understand where is the weight problem is coming from. I thought you have a Marske style carbon spar, foam...
  7. Condor

    Robin Ultralight

    I understand the "not stressed for higher speed" statement, but not the "not enough power" one. As you probably already know, the french MC-30 Luciole only uses 25hp and it is roughly equivalent of your plane with 20 foot wingspan. But I don't care about to translate from French and from metric...
  8. Condor

    Robin Ultralight

    Planebuilder, Will it work with 20 feet wingspan in the LSA category, or it is too premature to ask that?
  9. Condor

    Robin Ultralight

    Planebuilder, What is the current wingspan?
  10. Condor

    IMD 029-b airfoil

    Thanks for the info. I am still searching....contacted Karoliina too. Yes, that wing is STRONG, 12G. Thickness is 17.2% if I recall correctly (you have a heck of an eye).
  11. Condor

    IMD 029-b airfoil

    Hi, I can't seem to find the IMD 029 series airfoils, specifically the IMD 029-b that most of the Pipistrel series planes use. Does anyone knows, where to find the coordinates or at least the polars? It is supposedly a (popular?) sailplane laminar airfoil.
  12. Condor

    Robin Ultralight

    Planebuilder, What is the purpose of the slight curved cutouts on the outside perimeter of the pink foam pieces? And what will you use for covering and why? And how do you/did you protect your wood pieces from moisture? (Apologies for the many questions) Condor
  13. Condor

    Does the airfoil shaped fuselage top of the Dyke Delta add lift?

    What I am trying to understand, how one can model things like that? Since the wind tunnel and serious CFD software is out of reach for the typical homebuilder, what options do we have to figure out / improve on certain aspects of an unorthodox designs? Car top wind tunnel like Rutan used in his...
  14. Condor

    Flying wing or Blended Wing Body (BWB) question, where to start?

    StarJar, I am surprised that nobody commented on that design. It looks to me quiet elegant. Basically I am thinking along the same line but only 3 people max, because I want to use the "two outer people's place" for fuel tanks. (Since my original goal is an efficient long distance plane for...
  15. Condor

    Retractable Landing Gear Drawings/Pictures

    I have some drawings at home, but first I have to find it, than I have to scan it, I will try it in the weekend.
  16. Condor

    Xplane as a design tool

    Re: Flying wing or Blended Wing Body (BWB) question, where to start? Well, my 2c is, that it seems to me, design, simulation, structural testing, etc. should be discussed in separate threads, so we can find later the subjects by title. But I am reluctant to discuss anything on simulation as of...
  17. Condor

    Flying wing or Blended Wing Body (BWB) question, where to start?

    Well gentlemen, We kind of getting down the nitty-gritty and I can't comment more until my tools gets here. X-Plane is on order, RDS software (and book) is on order, SolidWorks, Rhino installed. So between those tools sooner or later I can generate some data for further discussion, but not...
  18. Condor

    Flying wing or Blended Wing Body (BWB) question, where to start?

    Hot Wings, I am surprised you state this. How can be a streamlined U-2 glides worse than a B-10 with all the draggy under carriage? Could you enlighten me? StarJar, Basically I see the PlaneMaker your way, except that PlaneMaker can't be harder than SolidWorks, ProEngineer or any other full...
  19. Condor

    Flying wing or Blended Wing Body (BWB) question, where to start?

    Thanks Bradyaero, Now at least I know there is another use of the 3D model in SolidWorks beside the stress analysis. (And you also showed me a new word "precession". I am not a native English speaker, so there is always something new to learn.)
  20. Condor

    Flying wing or Blended Wing Body (BWB) question, where to start?

    Hot Wing, If I recall, the U-2 uses a modified Wortman airfoil. Did you use the original Wortman profile or you have put in the modified airfoil from the plan as a custom airfoil?
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