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  1. W

    Scotch weld DP-420

    This is a recommended adhesive for cfrp. Something like 4000psi in peel. Straight shear. That is very strong. Would you fly your cfrp fuselage if each tube in the cluster only had 50% fiber reinforcement across the joint, and then bonded with DP-420? Let me quantify a bit further, an ultralight...
  2. W

    Pros and Cons on Composites vs Aluminum

    Hmmm When Vans started Carbon Fiber was a defense dept material. Now it’s available to me. First thing is that you don’t have to rivet composites, any RV builder would be overjoyed, well except the OCD guys. Could there be a reason what carbon is the number one material of choice for any type of...
  3. W

    Parts For Sale Fisher 303

    Not mine on Facebook Lawrenceburg, in 812-212-0131 $300
  4. W

    1 Sky Dog

    “Tubercle wing design“ was showing up on a couple of my feeds. Any thoughts? I will stop the spar testing on the spar until I drill down on this topic. This leading edge design can be incorporated into my design as the leading edge is carbon fiber
  5. W

    Polyurethane pour foam

    I have read a response from the grand poobah about the use of pour foam. If the frangable aspect could be overcome, could pour foam be used for the shear web between two surfaces of carbon tow in an epoxy matrix? I ask because I would love to form up and pour a sky pup outer wing panels, but I...
  6. W

    Fan cooled VW

    There ain’t much new under the sun. I wonder why some experimental folks haven’t come up with a way to cool the VW engine with a fan similar to the MZ202 engine, the way the original design was
  7. W

    Ceramic Bearings

    I have been looking rebuilding two stroke engines with seizures in mind. A little bit of study about Ceramic bearings state no lubercation is required provided ceramic races and balls. Lower expansion means tighter tolerance increases efficiency Can they be used when rebuilding a crank? Forged...
  8. W

    A New Design Blend

    I would like to hear from some knowledgeable folks about the pros and cons of an idea I have. I have been studying the Cri Cri plans. I personally think it is a great design. It’s Awesome! The Hummel Bird is a great design!, but I prefer to use a different engine, and I don’t have a problem with...
  9. W

    Fantastically stylish golden era biplane

    This biplane is on the build and fly.shop and I just wondered if anyone knows anything about it I want the plans and would rather pay the designer than the website that is just scanning a set It is a very nice airplane with Rotax 503 power Hornet Art Deco Biplane
  10. W

    Sorrell Guppy

    Is the Guppy short coupled ?
  11. W

    Kimbrel Dormoy Bathtub plans

    I would like to purchase a set of plans or a copy of your plans
  12. W

    Green Sky adventures Zippy Sport

    Does anyone have plans for the Zippy Sport?
  13. W

    WingBug | Fly Smarter

    I made a great discovery tonight drilling down on an accurate air speed indicator! I will make changes to the airframe (SkyDog) to accommodate a swing away panel to hold a Mac tablet. I have got to give that a lot of thought. Also will incorporate a mount into the left removable wing panel. The...
  14. W

    EGT/CHT for Rotax two stroke

    I am searching for a quality instrument and associated probes to install on my new Rotax 277 what does everyone use planning on a tiny tach for rpm
  15. W

    Parts Wanted Intake silencer

    I need a intake silencer for a Rotax 277, I believe the plastic container is threaded so I can screw on a K&N filter, then an aluminum cap that is safety wired Thanks
  16. W

    V Twin source

    Sky cruiser manufacturing located in Minnesota sells engines with PRSU for $4400. PRSU $950ish i just stumbled across and I have no affiliation aPRSU sourced in the US
  17. W

    How to distribute sandbags for load testing

    I have a design that I wanttobuild. It is a modification of an existing design. I would like to test the spar, and it’s attachment. MTOW is 500 lbs. How much weight should I load on each wing, and how do I distribute the test load. Thanks in advance for any assistance from the viewing audience
  18. W

    Free-Beam-Calculator

    https://skyciv.com/free-beam-calculator/ I don’t know why this did not provide a click link, oh well
  19. W

    Very Good Resource

    I posted this in the ultralight section, but I think it is such a good resource I want it to be seen by more people European Aviation Safety Agency www.easa.europa.eu/en/downloads/66874/en
  20. W

    Aluminum cylinders for type 1

    Stumbled across this VW type 1 iron sleeved aluminum cylinders The info on the box states; Imported by NPR of America, inc Mfg by Nippon piston ring company made in Japan that is all I know for now
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