Recent content by Urquiola

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  1. Urquiola

    New Engine design ?

    There have been lots of Barrel engines, one of them the 'Alfaro', you can consult 'El motor de aviacion A a Z', by Ricard Miguel Vidal, from Aeroteca Barcelona, open consultation to AEHS members, or the classic by J K Setright, 'Some unusual engines', download link in ResearchGate. In the field...
  2. Urquiola

    Antonov 181

    I'm glad having info about the Antonov 'Izdelie', no idea it had tethered flights, as the P Moeller m200 '1988: Manned test flight of a flying car' video, and other of his machines. There is a NACA Research Memorandum, NACA RM L53A09, about Langley full scale wind tunnel tests of Custer Channel...
  3. Urquiola

    What do you think about "e-soaring"?

    I'm not that sure microwave beams are not available today as energy transfer way. Do it have any resemblance to the electric teethbrushes charged by putting it on a nail in a base? See, eg.: 'Wireless energy transfer', 2010: Wireless Energy Transfer...
  4. Urquiola

    B&S 49-series (810cm3/49ci) for aircraft use - TiPi's Q&A thread

    I was delighted thinking B&S meant the Barr&Stroud Sleeve-valve, Burt-McCollum type, not Knight, motorcycle engine, but it was not. One of it was offered in eBay in around $2600, or $3600, not long ago. Blessings +
  5. Urquiola

    Ibis Canard

    Any comment on the reason why and advantages of Junkers wavy tin cover? btw: 'Junkers' means 'Jung Herren', from the, quite arrogant, offspring of German landowners; in Spain 'Señoritos', used for landowners in Andalucia 'cortijos'. Women acting as domestics call the housewive they work for...
  6. Urquiola

    What do you think about "e-soaring"?

    They say the Tesla Flying Saucers were huge size capacitors, energy sent to it with microwave beams. Is the concept of MW recharge available today? Blseeings +
  7. Urquiola

    Ducted fan aircraft

    Nothing new under the Sun!
  8. Urquiola

    Ducted fan aircraft

    Any comment on using the 'Trompe' arrangement, as a turbine inside a duct, as propulsion mean? Blessings +
  9. Urquiola

    What do you think about "e-soaring"?

    For sure your intimate would like this song by Slade AxterAerospace in Madrid produced a 40 KW or a bit more electric engine to be installed in the propeller bushing, as aid in takeoff and climbing, emergency power. Able to work as sole power source? Blessings +
  10. Urquiola

    cheap engine and prop ideas

    Even if I don't fly, and I don't build, I've collecting info abut this. Perhaps you may find cheap 2-Stroke engines in eBay and other sites, but a 2-Stroke engine, also torsional vibrations and other issues, killed the BD-5 and some pilots. 2-Strokes go seized, or have the plug fouled much more...
  11. Urquiola

    Very low aspect ratio planes?

    Pinterest is a time wasting site, as it doesn't distinguish between delusions, concepts, plans, aeromodels, prototypes, or production machines. Terrible!
  12. Urquiola

    Anybody want to build one of these?

    How long will this resist the redglow heat, and how would you cool it for not destroying airplane? Salut +
  13. Urquiola

    Anybody want to build one of these?

    Interesting the Pulse Jet and the blade tip ramjet in helicopters. Any one having a reference to a 300 lb thrust PulseJet plans? Blessings +
  14. Urquiola

    supercharging a two stroke

    About Turbocompressor and EFI for small engines, you can have a look at Blessings +
  15. Urquiola

    Very low aspect ratio planes?

    About 'Dutch Roll' and some LAR designs, a few months ago, while driving, I watched a car towing an small trailer, that made exactly the banking movement called 'Dutch Roll'. Any comment? Blessings +