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  1. flyndude

    Thick, high lift airfoils with wide speed range?

    You should take the models with a grain of salt. I built a Carbon Dragon and get 100 fpm sink or a little better. Definitely a floater. Not good for speed. Best L/D is only 32 mph.
  2. flyndude

    Super Floater Restoration

    Sorry, it's been too long. Can't remember how we did the ailerons
  3. flyndude

    Super Floater Restoration

    The Super Floater used a laminated sailcloth. Mylar or something like that over top of dacron and the mold and mildew grows in between the layers where you can't get to it. I tried full strength bleach on a couple spots and had no effect. I helped a friend recover a couple of them using regular...
  4. flyndude

    Another Electric 103 Dreamer

    I built a Carbon Dragon several years ago and I'm working on an electric self launch version. Because of the efficiency and light weight I think it will be a good candidate, but my needs are 10 -15 minutes of power for take off and climb out from a smooth grassy field and maybe enough power left...
  5. flyndude

    Composite or aluminium fuel tank?

    I have a Just Aircraft Highlander. The kit originally came with fiberglass tanks but they had so many problems with them they switched to aluminum. "The tanks almost put me out of business". The problem is mostly with ethanol in the fuel, and the new fiberglass tanks are advertised as ethanol...
  6. flyndude

    MOGAS in Fiberglass Fuel Tanks

    Our state (Ohio) and many others require an alcohol blend for highway use. For several years the only place I could get fuel without it was at marinas. The last few years a few local stations have stated selling "recreational" fuel without alcohol for off road use only. I have a airplane that...
  7. flyndude

    Weight Shift Trike recommendations

    Go to Barnstormers and do a search for trikes. You can save the search and have new items emailed to you. Nice deals on used ultralight trikes frequently come up. As with any aircraft though, unless you are very familiar with them I would strongly recommend you have someone inspect anything...
  8. flyndude

    Oil for 503

    This subject comes up from time to time. Here is a thread that covers it pretty well: (7) premix oil | Page 2 | Homebuilt Aircraft & Kit Plane Forum (homebuiltairplanes.com)
  9. flyndude

    Tail boom propeller

    Lots of interesting info I that thread. Thank you for the link.
  10. flyndude

    Tail boom propeller

    Something that would go around about a 8 or 9 inch fuselage would be about ideal for my current glider.
  11. flyndude

    Tail boom propeller

    There was an article several years ago in Sustainable Skies about 3 projects to place a propeller that rotated around the tail boom on a glider. Ring Around the Tail Boom › Sustainable Skies This seems like a good solution to the problem of prop clearance and would also give you minimum drag...
  12. flyndude

    What About EV Automobiles?

    I bought a used BMW i3 about a year ago. It's become my favorite car. Lots of torque, smooth, quiet. I love passing the gas stations and waving (with varying numbers of fingers raised) For the 90% of my driving around town it's perfect. When I get back in my recent model ICE vehicle it really...
  13. flyndude

    Wooden structure reinforced with carbon fibre

    On my Carbon Dragon I replaced the wood trailing edge entirely with a carbon one. (drawing by Jim Marske)
  14. flyndude

    What do you think about "e-soaring"?

    Reduced carbon footprint is not even on the list of why I chose electric. It's a side benefit. In sailplanes we are using small 2 stroke motors, not known for being the most reliable ( a friend has had 6 engine outs) Have you ever ridden in a sailplane under power with a 2 stroke? Unbelievably...
  15. flyndude

    Rotax 618ul

    Either the Rotax C or E gearboxes will bolt to the 618 and several gear ratios are available .You can call some of the prop manufacturers like Warp Drive and they can help you with you selection.
  16. flyndude

    Source for Carbon Rods?

    Jim's gliders are now being built and sold by Matt Kollman https://kollmanwings.com/home_Page.php
  17. flyndude

    Source for Carbon Rods?

    Only the carbon one. The fiberglass one is 220 lbs
  18. flyndude

    Source for Carbon Rods?

    Yes, I would be interested in being in on that, and may know others also. Let me know!
  19. flyndude

    Source for Carbon Rods?

    I was looking for .092x.220 carbon rods. At $2.30 a foot that would be over 9K and I only need about 300 feet of the stuff. I suppose I could do the calculations for 1/8 round but that would still leave me with a lot of excess rod. I'm still hoping Jim recovers soon and I can buy the length I...
  20. flyndude

    Source for Carbon Rods?

    They require 4000ft orders to get anything longer than 12 feet.
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