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  1. Rom

    A-33

    I noticed certain similarities between these two designs. I was wondering if anyone knows what the airplane on the right is and who the manufacturer is? It says A-33 on the side, but when doing an internet search, I came up blank.
  2. Rom

    He-X

    He-X stands for Henkel Experimental. I may change the name at some future time to maybe something like Flugmaschine, Tadpole or some other moniker. The original goal was to design a composite LSA. Commercially built LSA of a similar type would be in the range of $100k+. I figured one could be...
  3. Rom

    Hit the 1000th Active Member

    Congrats Jake and all that contribute to this forum. I see that there are now 1000 active members. I would think that for any forum about aircraft on the net, this has to be a record. Perhaps what draws so many interested people, is the depth of information and knowlege about homebuilding found...
  4. Rom

    7781 Orientation in Layup

    For my wing spar pass through, 7781 fabric will be used to make the hardpoints to support the bolt connections in shear. The fabric will be 45 degrees to the shear load. Each side of 7781 fabric has the fibers running perpendicular to the opposite side. My question is when doing the layup...
  5. Rom

    Stall Spin

    A "Sport Cruiser" went down because a stall spin mishap. Suffolk News-Herald | Early NTSB report released Using a normal spin recovery technique, the application of opposite rudder to the direction of spin, had no effect. Looking at the tail design, it appears that the rudder is completely...
  6. Rom

    Cabosil Use in Laminates

    In the book Advanced Composite Techniques the author suggests using Cabosil (fumed silicon dioxide) in a 1 to 2 part ratio Cabosil to epoxy for laminating fiberglass fabric on a vertical surface. I have been looking for information regarding it's affect on the weight of the finale product and...
  7. Rom

    The strip method or other?

    All you composite builders out there have looked into verious methods of building your fuselage. Since mine will have complex curves and be one of a kind I don't plan on building any complex jigs in which to layup the fuselage. The simplest method I can think of and one I am experienced with is...
  8. Rom

    Foam Board Types

    I have seen Owens Corning 150 and Dow Scoreboard at my local builders supplies. According to the literature I have found, the "150" is 15 psi strength and the "Scoreboard" is 25 psi. I was wondering if any of these would be adequate for aircraft components?
  9. Rom

    Stabilator Layout

    I'm considering designing a stabilator into my project using a 64012 airfoil for it's wide á and incorperating an antiservo tab. I need to find out where the pivot point needs to be, to be stable. I have seen somewhere in this forum that that it should be located at 20% MAC. Is there a reason...
  10. Rom

    Design From Scratch

    Hello all. Iv'e been hashing around some different designs to build when I came across this forum. Always wanting to do things the most difficult way possible, creating my own design is the only way to achieve that. There are a lot of good kits out there to choose from, but for me the aircraft...
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