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HomeBuiltAirplanes.com

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    Electrically Powered Aircraft webinar (August 2020)

    This webinar was hosted by AirInsight, a consultancy aimed at the commercial sector so one might say not immediately relevant to homebuilt aircraft. However I must say I was riveted from beginning to end, and I would suggest it is relevant to homebuilt aircraft in that we are waiting for...
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    Yamaha Creating High Performance Electric Motors For Mainstream Manufacturers

    The following quote from this article sounds promising: 35 kW to 200 kW equates to 47 hp to 268 hp. C'mon you high energy-density batteries!
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    Turbulent Flow is MORE Awesome Than Laminar Flow

    Mind blown at dead fish swimming upstream in turbulence.
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    Batteries made with sulfur could be cheaper, greener and hold more energy

    Mahdokht Shaibani, Monash University Lithium-ion batteries have changed the world. Without the ability to store meaningful amounts of energy in a rechargeable, portable format we would have no smartphones or other personal electronic devices. The pioneers of the technology were awarded the 2019...
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    Climate explained: why don't we have electric aircraft?

    Climate explained: why don't we have electric aircraft? Dries Verstraete, University of Sydney CC BY-ND Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change. If...
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    French museum offers plans for classic light aircraft

    I think that was me. My father-in-law purchased a Gardan GY-80 Horizon and I couldn't remember the name of the museum as I wanted to see if they have data on this model (they do). PS - the u/s Google search is frustrating! PPS - that Colibri is nice!
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    Is The Thatcher CX 5 Still Being Supported?

    I was the owner of a set of plans but I sold them in 2015. If you look at the builder list on the website you will still see my name despite the fact that I updated Dave with the details of the current owner (three years ago!). A few months after I had notified Dave of the change of owner he...
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    Will it fly?

    There is a Henri Farman model III that was recently imported from the U.S. and now lives at Caboolture, north of Brisbane. I took a snap at the airshow last weekend... Apparently there was only one attempt to fly this particular aircraft which ended in a crash. This type of aircraft was...
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    Model Plane Maker PeterSripol Builds Functioning Electric Airplane In His Garage...

    Model Plane Maker PeterSripol Builds Functioning Electric Airplane In His Garage, Takes It For Test Flight! https://amp.indiatimes.com/lifestyle/self/model-plane-maker-petersripol-builds-functioning-electric-airplane-in-his-garage-takes-it-for-test-flight-333711.html
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    Easy CAD program

    I'm not sure that CATIA meets the "easy to learn" criteria though... Sketchup is great, and has an extension for STL files: https://extensions.sketchup.com/sv/content/sketchup-stl
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    Easy CAD program

    SPECIAL OFFER: GET CATIA STUDENT EDITION FOR FREE https://academy.3ds.com/en/software/catia-v5-student-edition ;)
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    Mike Arnold Company website?

    https://web.archive.org/web/20161129030352/http://www.ar-5.com/
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    3D Printed Airframe

    3D printed submarines for $60k... https://youtu.be/8UY15kDVUek They've chosen an interesting cross-section. Why wouldn't you just go with a cylinder to minimise the structure required to deal with the loads? Reading back over the thread.... so the printed material may not have the right...
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    New battery technology using electrolyte barrier

    Some more promising battery research: http://sydney.edu.au/news-opinion/news/2017/08/15/university-of-sydney-charges-ahead-on-zinc-air-batteries.html
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    Quick question - no need for a full thread....

    Er, they have sold an awful lot ;) I think they're happy enough with 2.6:1.
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