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  1. A

    Money for nothing and your lift for free

    A now closed thread on Jetstream balloon solar buzzword flight raised a question. The complexity of the proposal caught some flack, but there was a claim/promise that caught my attention, that kites/sails/etc. might be used to get energy from the wind, from a balloon. My initial thought was...
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    Visibility needs, wants, myths

    Simple question. what do you consider important aspects of visibility? which direction do you want, or feel you need, to look? The question of poor down visibility came up in the Horton 2 seat thread. https://www.homebuiltairplanes.com/forums/threads/isnt-this-a-sexy-plane.32757/ Other...
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    Myths & Legends. Why your textbook is wrong.

    I thought a thread on misconceptions, historical, aerodynamic, and other, might be a good idea. I have several posts in mind, but I'll start with a Historical one. It is often said that the P-39, P-40, and other fighters in WW2 were crippled because the Allison engines they were stuck with...
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    AOA indicator as the Primary flight instrument.

    http://airfactsjournal.com/2015/04/archives-leighton-collins-angle-attack-1965/ Found this article from 1965. I've read a lot of evangelical preaching about AOA indicators as a safety item, and don't disagree. But the above article discusses how you can use an AOA indicator to set max rate or...
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    Why the heck did they do THAT?

    Thread mission. To illuminate, explain,and flame war ;) about design decisions that struck a compromise that seemed unwise. To correct any prejudices of mine that are wrong. ( the ones that are correct can stay. I'm prejudiced about carrying liquid Fluorine in a pocket. I think I'll keep...
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    prehistoric aluminum?

    http://www.mirror.co.uk/news/weird-news/experts-believe-mysterious-aluminium-object-9086060 2 questions. How do you date aluminum? Why does this look like a landing gear part to me? Ok 3 questions. Does anyone recognize this? I know how to tell if aluminum dates from...
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    Buy the engine early, or not?

    I know this is tangential.. but I doubt it rates a whole thread... so. Going over old Kitplanes magazines, and often they talk about the price of different aspects of a build. Classically, 1/3 airframe, 1/3 engine, 1/3 instruments, 1/3 finishing & odds & ends.. And often the advice is to get...
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    hacker commandeers plane...maybe.

    Feds Say That Banned Researcher Commandeered a Plane | WIRED I will reserve comment until I know more, but... I will say the FBI is great at what they know, and insane at what they don't. If you have the capacity to do some techno evil, the FBI seems to assume you must be the guilty party...
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    backwards bicycle.

    Watch You think you can ride this bike, but you really can't @ Komando Video Learning & unlearning how to ride a bicycle. I myself have had issues with sticks that hang from above. The wrist angle feedback fools the arm position controls. For example, a Mitchell Wing Hang Glider uses a short...
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    Pressurization loss reaction

    All the news locally is about a fatal crash of a TB-900. What caused plane to crash? - 13WHAM ABC Rochester NY - Top Stories As I know the story. subject to change since the news never gets this stuff right .. short form, pilot called ATC and asked for a descent from 28,000 ft. ATC told him...
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