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  1. sonex293

    Crashes in the News - Thread

    I heard it was a Polini engine....not sure which one.
  2. sonex293

    EFI on a Jabiru 3300

    Peter and I converted our first engines about the same time. He in his Waiex VW and me in my Sonex Jabiru 3300. He went through a lot of different intake designs early on trying to get fuel distribution the way he wanted it. The SDS system performed flawlessly for us. If I remember...
  3. sonex293

    Fuel Tank Vent Check Valve

    The tanks in our wings are fiberglass. ===
  4. sonex293

    Fuel Tank Vent Check Valve

    Wow! Lots of great things to think about here. I do appreciate all the suggestions. I've got a lot of reading to do tonight! ==
  5. sonex293

    Fuel Tank Vent Check Valve

    The bottom piece threads onto the tightening bolt/lever, and the bolt/lever is held by the top piece so there's no way to fix the tube to the bottom. Our next experiment might be to try multiple smaller holes in the bottom fuel cap with the equivalent surface area. Maybe three smaller holes in...
  6. sonex293

    Fuel Tank Vent Check Valve

    Currently having an issue with fuel coming out of the fuel cap vent line on my homebuilt airplane. The fuel tanks are in the wings, and the fuel cap that we use is a standard Usher UD-3 (Usher Flush Fuel Caps | Aircraft Spruce). The kit manufacturer has you drill a hole in the top of the cap...
  7. sonex293

    Whatever happed to Synergy by McGinnes?

    Lots of build pictures on their Facebook page. Although last updated in March.. https://www.facebook.com/SynergyAircraft
  8. sonex293

    Oshkosh 2022

    I remember someone saying the Ultralight field will be moving in the future so Vintage can expand. Where exactly are they thinking of moving the Ultralight field to?
  9. sonex293

    Waiex (sonex) with a Corvair

    Congrats on the Waiex. I flew a older Sonex as both a nose wheel and then later as a tail wheel with a Jabiru 3300 up front. Couldn't tell you the all in weight of the Jabiru 3300, but CG was perfect and I could put anything I wanted in the baggage area. Even had a folding bicycle back there...
  10. sonex293

    Sharing My 3D Printed Grip With PTT Switch Design

    Well I was hoping to pull the design files into FreeCAD to make changes. No luck there. I can get the STL, STP, IGES files into FreeCAD, but it is all one surface. I might try a few modifications with TinkerCAD, but it will be a lot more difficult with the interior wire routing channels for...
  11. sonex293

    Sharing My 3D Printed Grip With PTT Switch Design

    Thanks so much for doing this. I printed all three out for size yesterday. I also used the new "Fuzzy" surface feature of PRUSA Slicer on one grip and really like the results! I printed at 0.3 draft height and happy with the both the quality and speed. To print all three at once took about...
  12. sonex293

    Sharing My 3D Printed Grip With PTT Switch Design

    I agree. I've created a few 3D printed items for my build. I've used TinkerCAD and FreeCAD for part design. Anytime I find an aircraft part on Thingiverse I mark it as a favorite and download the files. I wish I had the space for a CNC router (i.e. Shopbot or equivalent). This stick grip...
  13. sonex293

    Bob Barrows and his Electric Ultralight Flying Machine

    Have you guys seen this video...
  14. sonex293

    New Sonex High Wing Design

    As Cy V stated, it will have a stick. Center stick will be out the door first. Dual controls based on demand. --
  15. sonex293

    Ultralight Airplane Workshop on Youtube

    There are quite a few polished Sonex aircraft out there using 6061-T6, so it does polish up nicely!
  16. sonex293

    Jabiru 3300A

    Jabiru 3300 6 Cylinder Engine with Test Stand Hydraulic Lifter Model S/N 33A-1048/33L-0011 190 Hours Total / Fresh Top-end OH (1/2 Hr Stand Run) Running on Engine Stand SDS Electronic Fuel Injection System (EM-4) 2x Walbro GSL-393 Fuel Pumps Muffler CAMIT Exhaust Seal Kit Available (not...
  17. sonex293

    Highlander kit and Oratex

    Yes, Just Aircraft will give you a credit for the fabric and glue. I bought my Highlander kit a year ago and wasn't sure which fabric system I was going to use, so I pulled it out of the order. I'm still not sure and have some time to decide. I'm leaning toward Stewart System right now, but...
  18. sonex293

    Aerocarb tuning

    I agree with TJay. I had the AeroCarb on my Jabiru 3300 and eventually got it to run fine with the AeroCarb. I wasn't a fan of the the coarse threads for the needle adjustment, but the carb did function fine in my situation. I had NO fuel pump and ran a gravity feed fuel system. Anything...
  19. sonex293

    Blue Mountain Avionics User's Group

    Hey Guys, I know a few of you are still flying behind Blue Mountain Avionics EFIS systems. I too have one of the orphaned systems in my aircraft. Up until recently, Greg has been keeping the User Discussion group going on his website. We'll it finally went away and now there's no...
  20. sonex293

    Paul Lipps (designed) "elippse" propellers

    I have seem comments between Jack and Paul that indicate they are in agreement on many aspects of prop design. I have Jack's book, but haven't started it yet. -- Michael
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