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  1. bradyaero

    Looking for some feedback on my ultralight design

    Hi Dana, Yes I didn't like having an exposed linkage. I've removed all of that and changed to push pull cables for elevator and rudder. Thanks for the links. Greg
  2. bradyaero

    Looking for some feedback on my ultralight design

    wow those are nice drawings!!! thanks for sharing them rotax618!
  3. bradyaero

    Looking for some feedback on my ultralight design

    Hi Rotax618, Absolutely, anything you think would help, please post, your drawing are excellent! I especially need help with my control stick. I am going to make the elevator a push pull cable and get rid of the not so great push pull tube I have in the current design. Hi Proppastie, In a...
  4. bradyaero

    Looking for some feedback on my ultralight design

    Thanks again for the replies, I moved the push/pull tube for elevator control below the boom to remove the hole that would have been cut in the boom tube. I raised the engine to accommodate a 55" prop. Greg
  5. bradyaero

    Looking for some feedback on my ultralight design

    In Canada we actually have two Ultralight Categories: Basic Ultralight: an aeroplane having no more than two seats, designed and manufactured to have: a maximum take-off weight not exceeding 544 kg (1,200 pounds), and a stall speed in the landing configuration (VS0) of 39 knots (45 mph)...
  6. bradyaero

    Looking for some feedback on my ultralight design

    Absolutely, I couldn't agree more. I wanted to get some input on obvious flaws, correct them and then pay someone to do the stress analysis. That way the tubing and gusset thicknesses and sizes can be nailed down and I can start building. My goal is to build a simple and strong ultralight...
  7. bradyaero

    Looking for some feedback on my ultralight design

    Thanks again for the feedback,. Here's my latest update, I removed the boom to landing gear bracing and extended a tapered support doubler for the main boom. I also changed the ground pitch to be slightly nose down for tail clearance. I wedged up the horizontal stabilizer to match the change...
  8. bradyaero

    Looking for some feedback on my ultralight design

    Ahhh, could I achieve a similar result increasing the size of the tubing from 3" to 4" ? Thanks, Greg
  9. bradyaero

    Looking for some feedback on my ultralight design

    The wings are strutted. and I want to minimize wire bracing. The landing gear is bent spring aluminum. The tail sizing came from studying other ultralight designs. The wing is a sparred aluminum structure similar to a Sandpiper wing. All controls built with push/pull tubing Thanks...
  10. bradyaero

    Looking for some feedback on my ultralight design

    Can you please explain " Just make doubler over the tube at root and ease it gently at its end, in order not to make stress riser" I don't understand what a doubler is in this case and what easing it gently at its end. Great sketch, and thanks!
  11. bradyaero

    Looking for some feedback on my ultralight design

    Hi, I would like to know if you see any problems that I should correct before building one. I am a bit concerned about the square tube tail boom, but would the triangle support structure tied into the landing gear provide enough stiffness? Any feedback appreciated, Greg
  12. bradyaero

    Flitter

    Hi Victor Bravo, I've flown several similar wing models like the Projeti and the Raptor, they are super stable, fast and fun to fly but they use a symmetrical airfoil and have nothing to do with my wing, which is sophisticated and designed to do the real job at full scale, and is the reason...
  13. bradyaero

    Flitter

    Hi Dana, Sorry for the delay in answering, I was away vacationing in Cuba. My plan is to carve out large sections of foam, leaving temporary foam bulkheads in place for support. Then I will glass the two sections together, and then place the real bulkheads and remove the temporary foam ones...
  14. bradyaero

    Flitter

    Hi auto, The first layer of glass is already on. My plan is to carve out the foam and then add my bulkheads and stringers. I think this is the quickest way to a prototype. Greg
  15. bradyaero

    Flitter

    Hi Bill, >>Are you building it moldless or is this a plug or something else? You are not allowed to just throw this out there without more in the way of description of type and mission and construction.. At this point I am building it moldless, probably s-glass / epoxy. An interesting thing...
  16. bradyaero

    Flitter

    I came up with the concept back in about 2000. I played around with flight sim models, and then found an aerodynamic engineer and then a cad guy to do the heavy lifting. After several iterations the plane took shape as you see it. I resurrected the wing from the ME163, its really quite a...
  17. bradyaero

    Flitter

    So I got tired of staring at the two sides of the flitter, putting off building a four foot hotwire, so I got out my carving knife (Chainsaw) and went at it. It's nice to see both sides together, I still have to do some fitting but in general, they fit, and it was a nice christmas present to...
  18. bradyaero

    Videos: Making a composite plane

    Great videos!!!
  19. bradyaero

    Problem with Plugs

    Thanks for the ideas! I like the idea of injecting with epoxy, the thing is these air bubbles are all over the place, I wonder if I am better off ripping the singly ply fiberglass layer off and starting it all over?
  20. bradyaero

    Commuter Craft (3 surface) Innovator Has Flown!!!!!!

    That's my flying wing design I've been working on.
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