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  1. leviterande

    Advice on quick & simple construction method for a "low AR" wing?

    Thanks! That is neat Tiger! I always get a comfortable feeling some "legitimate" manufacturer doing a similar "fringe" idea I had in my mind. it gives me a good comforting reassuring feeling I am not way out there. Dunno why I am weak and always need confirmation of ideas like this. Ok so...
  2. leviterande

    Advice on quick & simple construction method for a "low AR" wing?

    Hi again. I am aware Im inactive online. I will try to reply to all. I have been busy as always tinkering with software and in the garage... Aesquire, Thats a very clean looking idea. Im making sure right now to figure out all the torsion stress/loadings as well. Hephaestus Wainfan is an...
  3. leviterande

    Advice on quick & simple construction method for a "low AR" wing?

    Hi thank you for the replies. Riggerrob, verhees delta Has these huge sheets as you said. seems simpler than gusset+tube. MDF sounds even simpler. Need to check the weight though! jedi, I was actually thinking about using cheap alibaba inflated 4m/3m/2m blimps and stack them side by side to...
  4. leviterande

    Advice on quick & simple construction method for a "low AR" wing?

    Hi all, I know I am not a very active member here. Usually Im very busy designing, experimenting, testing and flying RC models to validate/invalidate full scale designs/ideas. It can honestly be very daunting... as 97% of models/experiments, time, money energy is wasted to find a "working...
  5. leviterande

    Electric Hybrid

    You got a valid point! gaining something almost always equals reducing something else in aviation as an aircraft is a flying city of compromises. I thought along the lines that the power of the electric assistanse alone can keep you flying safely incase of gasoline engine failure. That is that...
  6. leviterande

    Electric Hybrid

    Absolutely. Battery weight is always relevant. I was just replying to someone who obviously misread/misintrepreted my first post -he assumed I was talking about a full electric system- but I emphasized I was not talking about a full electric system but only a an assisting system. I should have...
  7. leviterande

    Electric Hybrid

    I know how awfuly heavy Lipos and Lions are. Sure, your post would truly be justified if I was talking about using a "pure" electric system in a vehicle. That is not what I am talking about here. As you hopefully read my words, and as I stated in my post I was clearly talking about using...
  8. leviterande

    Electric Hybrid

    Indeed I also fully understood that, using anything electric with any hybrid system involving gas+brushless generator+ regulators is a messy, heavy, inefficient complex way to solve a simple problem: just bolt a prop to a gas engine. My thought pattern however changed about having electric...
  9. leviterande

    "Bladeless" Propulsion

    Talking from extensive propulsion compressor/airflow redirection/coanda experiments. I can assure you - without trying to be insulting anyone - that this idea AT FULL SIZE if it ever "takes off" the required amount of power will make a Harrier in VTOL mode a glider in comparison and it would...
  10. leviterande

    fabric on ribs with huge spacing, doable?

    Indeed that was the first original plan, it is very tempting to have a circular planform as shown :): the superiority of the low weight structure is not matched by any other planform or construction method. However midway during my research I realized that while the bike wheel is the superior...
  11. leviterande

    fabric on ribs with huge spacing, doable?

    Thank you so much guys for your input. You are a gem of a community 🙌 It is amazing how much research & development and design is contained in an aircraft project. Design is like 95% of the aircraft. Building it is a childplay. People who know me ask me where is the project, where is the...
  12. leviterande

    fabric on ribs with huge spacing, doable?

    Thank you! I was concerned more about the lower bottom area where the acting net lifting force is mechanically going to push the entire body up. (as in the typical wing load sandbagtests videos where the tests actually tests two main things: the spar -which is no problem for me- and the skin...
  13. leviterande

    fabric on ribs with huge spacing, doable?

    Im deisgning and testing various smaller prototypes towards a blended wing/lifting body concept, kind of like the facetmobile. I have a question about fabric covering . The concept involves big spacing between the ribs/members. Few members are around 3.5m apart between. I.e.a round...
  14. leviterande

    Looking for structural analysis tester/engineer to assist in a project

    Hi! While I have worked with 3d modeling and Ansys structural analysis software and knows a bit about structural design criteria I would like to get help from a good engineer/designer or really any talented person who is really good at structural stress software. Looking for assistant/worker...
  15. leviterande

    The 'daydreamers' thread...post your craziest designs and concepts here

    Indeed, the wasp was the first flying jet version. I believe Charles H. Zimmerman in the 1940s was the first ever ,in modern history at least, to conceive and test the idea of using your natural body kinesthetics to control, stabilize and fly any platform near effortlessly. As you can...
  16. leviterande

    The 'daydreamers' thread...post your craziest designs and concepts here

    It is real. My first impression ever was that it has to be a fake but looking at the water spray, the handling.. it is real. Physics, at least, allowed this creation all ever since the great Stanely Hiller came up with the idea. You can buy off the shelf rc jets that produce the...
  17. leviterande

    A question about this used 582,

    Yep, indeed, there are seemingly other cheaper in-good-shape 912 engines too for equal prices! However, it seems that my big fear has just became real & reinforced about buying used engines from overseas. I tried other listings on that same trusty http://www.aerosales.co.uk/website...
  18. leviterande

    A question about this used 582,

    The 582 from Skydrive UK website including a gearbox and electric start ends up around 6600 Euroes.... which is a little too much to me. Anyway, below are the photos he has sent A video of it running http://www.youtube.com/watch?v=jTl1L-8t_Vo&feature=youtu.be
  19. leviterande

    A question about this used 582,

    Thanks! didnt see this deal before. £3840= 5200Eu. Still you are right about the dealbeing not so good compared to a brandnew one. Richard, I´l do that! Thanks a lot.
  20. leviterande

    A question about this used 582,

    Hi, I am really not sure where to post this. If I posted in the wrong forumsection I apologize and please move it. As I mentioned in the other post I am looking for a reasonably priced engine considering the fact that I am in Europe. I have checked lots of --"40hp -and-up"-2- strokes all from...
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