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  1. rtfm

    Wing spar load testing question

    Hi Bill. Thanks. Yes, fixed cross sections for full length. I've been trying to finish a few jobs so that I can pay full attention to the spar loading jig, but it's all planned out. I hope to get on to it next week. Warm regards, Duncan
  2. rtfm

    Modern day "motorcycle of the air" aircraft class?

    I read a NACA report (don't remember the number) which concluded that independently pitching wings (like the Spratt 103) was divergent and wanted to spin if given half a chance. That's when I lost interest in it. Also, the designer contacted me via email, and threatened to sue me because I had...
  3. rtfm

    Wing spar load testing question

    Gosh - what a cool teacher. Thank you.
  4. rtfm

    Wing spar load testing question

    Hi. What's a whiffletree? [Edit] Ah - not to worry - I should have googled it (as I have now done).
  5. rtfm

    Wing spar load testing question

    Yes, I found that interesting also. I haven't built the wing yet, so I still have time to revisit the rib spacing. However, bear in mind that the Fleabike weighs 256kg all-up. So we're not talking heavy. But the principle is the same.
  6. rtfm

    Wing spar load testing question

    Hi Bill, First, thank you for taking the time to write your reply. believe I misled you (and everyone else) with my original sketch. I omitted to draw in the struts (see updated sketch below). The wing is attached to the fuselage with two cabane struts, but also has struts which attach to the...
  7. rtfm

    Wing spar load testing question

    Hi. Mmmm The Fleabike is small enough to physically flip upside down, attach the wings and test, as you describe. I'd be very comfortable with doing that AFTER I'd proof-loaded the spars flat on the ground, the way Mike Patey did. This would, essentially, be testing the rest of the airframe...
  8. rtfm

    Wing spar load testing question

    Hi, I've decided to test my spar only, not my entire wing. If the spar fails, no big real. If the wing itself fails, I'll be thoroughly pissed off. I recently watched a video by Mike Patey () where he tests the "Scrappy" spar. I found this a novel way to test the wing's ability to allow you...
  9. rtfm

    Whatever happed to Synergy by McGinnes?

    Mmmm - so still aero-vapor at the moment... Thanks for the research guys... What a striking plane!
  10. rtfm

    Whatever happed to Synergy by McGinnes?

    He and his rather striking plane seem to simply have dropped out of sight. Is it a thing? Has he given up on it? Has it flown?
  11. rtfm

    Pin stripes and clear coat?

    Hi, I have painted my fuselage, but want to delineate the block of yellow color with red pin stripes (maybe 25mm wide - depending on what I can get locally). So my question is: do I apply the pin stripe before or after the final clear coat?
  12. rtfm

    Trailers and wheel placement

    The car or the plane?
  13. rtfm

    Trailers and wheel placement

    SCARY!
  14. rtfm

    Trailers and wheel placement

    Any chance of a few pictures?
  15. rtfm

    Trailers and wheel placement

    Wow. Excellent responses. Thanks guys. Exactly the sort of info I was hoping for. I even checked out the scooter idea - I love it - but I think my wife would divorce me... Cheers, Duncan
  16. rtfm

    Trailers and wheel placement

    Initial rough sketches to visualize possible configurations only (as you can see). But do-able, I think. I thought I could winch the plane up onto two wheel cradles, to ensure it is secure, and placed correctly, would pitch the tail up, allowing the Smart car to ride up and under the tail. The...
  17. rtfm

    Trailers and wheel placement

    I initially thought of this: but that makes for a very long trailer. Tilting the Fleabike up and forward would allow me to decrease the length of the trailer by over a metre and a half. Something roughly like this.
  18. rtfm

    Trailers and wheel placement

    So, about 20kg on the tow ball. That's all I need really. I'm thinking of building a trailer/hangar for the Fleabike. Giving my imagination free rein, it might be possible to design a trailer for both the Fleabike and my Smart car to be towed behind my motorhome. We will definitely need to...
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