Search results

Homebuilt Aircraft & Kit Plane Forum

Help Support Homebuilt Aircraft & Kit Plane Forum:

  1. StarJar

    Why do the Long-EZ and Varieze have anhedral in the main wings?

    Are you sure you want to add takeoff and landing distance to an Eze?
  2. StarJar

    Lars Giertz's VMaxProbe (N1200M)

    I think it was actually the NLF 0414 airfoil.
  3. StarJar

    Harrison Ford in the news again

    Thanks again, news boys, for the çomplete radio transmissions....(not).
  4. StarJar

    replacing plywood construction with cored composite panels

    Looks like an excellent plane from reàding the specs, but you'd have to shave off 66 lbs to make it an ultralight. My guess is that you would shave off less than 15 lbs. by substituting composite for plywood. I could be wrong though. In any case it looks like a really cool plane.
  5. StarJar

    New Aerodynamic Theory: Drag-based Flyers

    I think there is a confusion about the terms "lift" and "drag". Anything desirable falls under 'lift' even if it's created by air impacting the wing or blade from the underside (along with other phenomena). Sorry to make it short, but that's my first impression.
  6. StarJar

    Succesful Geodetic Model, Finally

    Thanks for the kind words and great article. Especially interesting was the possibility of not even needing bulkheads. I'm going to make my rear bulkheads with minimum mass before load testing. Àlso he described the advantage of thicker members vs. stressed skin very well. I think there is...
  7. StarJar

    Completing the project

    I think maybe doing a part everyday is over rated. It's the passion of possesing what you want that drives your ambition. And sometimes you have to take time off to re stoke your vision or settle some issues. I'm not best example of completing projects though, so your mileage may definitely...
  8. StarJar

    Flying Rooster Kit Available?

    The next step might be some çolor tinted wimdows and specially shaped wing (and tail).
  9. StarJar

    Synergy Aircraft

    If you're excited about something you're going to talk about it. He was invited to the forum. The condemnations came before he asked for money. He didn't indicate that he would be the greatest airplane designer ever, that I recall. That's how I recall it.
  10. StarJar

    Synergy Aircraft

    I don't think he was spouting off performance numbers as much as new ideas. Ánd I got to thinking, if interferance drag cuts lift on a bipe, why wouldn't it conversly help on a down- lifting surface (in addition to straightening out some wake). Some moderators were jumping on the stab...
  11. StarJar

    Synergy Aircraft

    Imagine every penny you have, and that you çould borrow (before Go Fund Me) layed out in parts, and then people coming in and telling you your ideas are no good. Like I said years ago (but got deleted) I found it embarrassing.
  12. StarJar

    Synergy Aircraft

    Do unto others. I don't think that kind of pressure helps if you were a single individual trying to solve multiple problems.
  13. StarJar

    Discussion Thread: The design of a tailless flying wing

    @Aerowerks; Well the problem I have with plywood is that a 1/16 sheet weighs someting like 6 lbs. My wing for example is 150 sq ft. area so 300 sq ft surface. That's about 9 sheets and 54 lbs. The lattices would come out to about 18 My proposed design is a UL so, that pretty much...
  14. StarJar

    Roncz FW Airfoil as Pinch Hitter

    110 l/d at 1M Re# at Ncrit 5 isn't bad. My flying wing design has an 8 ft chord so the Re should be much higher than that. I think you have to say "Compared to what?", for polar comparisons, and look at each laminar airfoil individually. Compared to themselves at rough Ncrit and low Re the...
  15. StarJar

    Discussion Thread: The design of a tailless flying wing

    @ Aerowerks. The 66% sounds like a more practical amount. In my opinion the final result supersedes the shape of the lift distribution. I've been messing with the Roncz Low Drag Flying Wing Airfoil. I think with higher sweep angles it gains even more advantage because the sharper nose...
  16. StarJar

    Roncz FW Airfoil as Pinch Hitter

    Also, pinning the wing (stub) forward of the pilot has been recognized as a requirement by me from the first iteration. Of course with an eight foot root chord this is doable. I also thought more aboout possible nose up twisting of the tip under load; The main spar has no anti twist...
  17. StarJar

    XFLR5 Question: Zero Moment angle

    Sounds good. I might try xflr5 again, lol.
  18. StarJar

    XFLR5 Question: Zero Moment angle

    I don't, or I would help. My only question, and probably a really dumb one is; Why do you start with 0.0 aoa. In aero terms, of coarse, it has little to do with '0', as in a starting point. It might as well be 3 or 2.43 or any 'starting point'. I'm very foggy on xflr5 stability analysis. When...
  19. StarJar

    Succesful Geodetic Model, Finally

    I've thought about poltruded rods. It would be about 800 ft of rods. The weird problem to overcome, IMO, would be the varying shapes of the diagonal lattice tiers. As they curve around in two directions they don't maintain the exact distance from the skin.*** I think there is some way to do...
  20. StarJar

    Succesful Geodetic Model, Finally

    I requested a sample. When it arrives I'll make a tension and compression test rig. Thanks for the positive thoughts!