Flying Cars And Roadable Aircraft

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There's something a bit off about the look of this " flying car".


Someone here posted a youtube video explaining why this is likely a scam. Notice how in the flight video the windows are completely blacked out, meaning that this thing is likely just a drone and is unable to lift the weight of a person.
 
I strongly feel that Molt Taylor's remarkable Aerocar designs more than deserve a topic of their own, instead of being drowned in this 17-page thread... Anyway, here is a remarkable 1949 video of the very first Aerocar!

View: https://www.facebook.com/watch/?v=1055557900063649
Interesting. "Molt" Taylor (Moulton Taylor, his real name, Molt was a nickname) was a USN Commander during WW 2 and as an aeronautical engineer and pilot worked on Project Gorgon. He was the first person in history on 8 March 1945 to attempt to use an air-to-air missile (a Gorgon IIA with TV and MCLOS guidance) to shoot down another aircraft off Cape May NJ (He concluded it was impossible to use MCLOS with a missile to shoot down an aircraft as the closing speeds were too high and human hand-eye coordination couldn't deal with it).
 
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From Der Flieger 1950,

first time to hear about Fonck.
 

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Maybe the energy density is now good enough for these things
A team of researchers at DTU may have cracked one of the toughest nuts in sustainable energy: how to make fuel cells light and powerful enough for aerospace applications.

The Brookhaven-led team designed a new nitrogen-doped catalyst made from a carefully tuned mix of five metals: platinum, cobalt, nickel, iron, and copper. Such "high-entropy intermetallic" materials.

By zooming in on the material at the atomic level using X-rays and microscopy at Brookhaven's National Synchrotron Light Source II (NSLS-II) and Condensed Matter Physics and Materials Science Department, the researchers discovered that the new catalyst has tiny distortions in its atomic structure, partly caused by what they refer to as "sub-angstrom strain."

These subtle shifts in atomic position—measuring much less than the width of a single atom—combined with strong bonds between the metals and nitrogen atoms, make the catalyst both highly active and unusually durable.



Fuel cells traditionally rely on proton-conducting oxides that require operating temperatures above 500 °C, limiting their use in compact or mobile applications. A team from Institute of Industrial Nanomaterials, Kumamoto University, led by Assistant Professor Kazuto Hatakeyama and Professor Shintaro Ida, has developed a flexible solid electrolyte composed of monolayer silicate nanosheets with the formula H₀.₃₇Al₁.₆₇Mg₀.₃₅Fe₀.₁₁Si₃.₉O₁₀(OH)₂(H₂O)₂.₆.

This material achieves proton conductivities of 2.3×10-3 S/cm @10 °C, 6.2×10-3 S/cm @100 °C and 8.7×10-3 S/cm @140 °C under 100% relative humidity—comparable to or exceeding current polymer-based electrolytes like Nafion.

What sets this membrane apart is its dual performance: it not only conducts protons efficiently but also blocks hydrogen gas more than 100 times better than Nafion. This combination of properties is critical for fuel cell safety, efficiency, and longevity.

When applied to hydrogen fuel cells, the membrane enabled a maximum current density of 1080 mA/cm² and a power output of 264 mW/cm² at 90 °C. Even more impressively, the fuel cell operated stably across a wide temperature range from −10 °C to 140 °C—making it suitable for both cold climates and high-demand automotive environments.
 
Lebourder Autoplane blueprint by Motocar
 

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The presenter began with his particular opinion, satirizing both Flying Cars and those of another category such as amphibians. I began to watch the video, but it took me less than a minute to get rid of it because it was useless and lacked seriousness. I thought he would go through the hundreds of attempts at Flying Cars and then comment on the problems that would arise! Anyway, what a useless waste of time it took me to write this review. In response to the Flying Car, I will say that today there are very serious proposals from large and very serious companies in Europe, Asia, and the United States. I also believe that the aforementioned drawbacks are valid.
 

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Also from this book
 

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From JAWA 1960-1961,

the Bryan concept.
 

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From Rivista Aeronautica 1947
 

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