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  1. Wild Bill

    Small single seat 3 surface concept

    About 15 years ago I had this idea for a small twin engine single seater. I sketched it out on a piece of paper and made a very small hand toss glider. Afterward, I bought a flying airplane and was busy with work and flying XC’s on the weekends. Some years later I started building the RC test...
  2. Wild Bill

    The new Gorilla Clear glue

    I know.... Not another gorilla glue post but hear me out. Im always looking for alternative glues. Recently I stumbled across some gorilla glue that appeared to be different from their other products. At first I thought it was a repackaged version of the foaming type glue that isn’t brown...
  3. Wild Bill

    Rotax 277 gearbox orientation

    I’ve got an old 277 single rotax with what I guess is an A box on it. Looking to mount it in a configuration where the cylinder is upright. With the cylinder upright I also need the gearbox to be “upright”. So I removed the gearbox only to find that it will only go one way. The adapter plate is...
  4. Wild Bill

    Kolb Firestar 1 clip wing

    Ive ended up with an old Firestar 1 single seater project. My initial thought was to build it by the plans. But the more I look at it the more tempted I am to clip the wings and fuselage tube. About 2 foot off of each wing and a foot off of the tail boom puts it at the same basic size as the...
  5. Wild Bill

    Sailplane Pitching moment

    I've been doing some reading about laminar flow wings, small efficient high aspect ratio wings and this has pointed me to the sections used on sailplanes and motorgliders. I'm somewhat confused by what I see because most all of these designs have sections with a high pitching moment. Yet tail...
  6. Wild Bill

    Straight chrome moly tube landing gear

    I'm looking for any experience with using a simple straight tube for a landing gear on a light ultralight type design. I keep coming back to this single straight tube concept because of it's simplicity and potential weight savings. I also don't need typical ground clearance for a normal landing...
  7. Wild Bill

    Rule of thumb for shear webs

    I've studied this pretty well, and the more numbers I crunch the more muddy the water seems to get. I havent seen a general rule of thumb for shear webs for box spars. (especially for those with a foam core) The design I'm working on is a spar for a electric powered ultralight. Design weight...
  8. Wild Bill

    Delta wing attach looking for ideas

    Guys I've been sketching out various things and what seems to always meet my needs is a flying wing/delta design. This would be a small light single seat 40-80hp plane that could meet LSA. One of the design challenges is what to do about attaching the wing panels. I've looked at a bunch of...
  9. Wild Bill

    Woods suitable for prop making

    I'm looking to make a 48X40 prop for a 35 hp engine and have been having trouble finding any good wood. Maple is my first choice but so far I've had no luck finding it or finding good useable clear straight grain material. Have looked for other suitable substitutes but they are just as...
  10. Wild Bill

    Taper cut shear web for box spar

    Doing some box spar testing/calculations.. after thinking some about typical box spar construction, I became concerned about the glue joint between the spruce spar caps and the outer shear webbing. In a normal box spar with say 3mm (1/8") 3 ply plywood shear webs only the first ply is glued to...
  11. Wild Bill

    Opinions on my design

    Hi all new to the forums but have been a long time reader. I've been toying with the idea of building my own single seat cross country machine. After much consideration I think I've narrowed down the rough configuration on the air plane and intend to start construction next year. Wanted to hear...
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