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0 pointslstodd6d ago0 comments

Mostly physics. It's hard to do small jets, mostly because small things get too heat-stressed

I sorta watched a guy trying to build a hoverboard out of 50-kgf jets, it was crazy, hilarious and didn't go anywhere because flying a backpack of kerosene on four totatally unreliable jets ain't much fun in the end. They also cost about $5K each at the time.

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dylan6046d ago

Just yesterday, someone posted a link to a Veritasium video[0] explaining how a jet engine internal temps of 1500°C work when the components have a melting point of 1250°C. I couldn't imagine doing that at a small scale by hobbyists.

[0]https://www.youtube.com/watch?v=QtxVdC7pBQM

lstoddOP6d ago

Yes, and those small engines might work for a bit, but then they just burn out, this is inevitable.

If you build an A380 like here you sure don't want to use them unless you want to film it burning down spectacularly.

dylan6046d ago

Sounds perfect for Hollywood practical effects vs boring CG

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dylan6046d ago

[0]https://www.youtube.com/watch?v=QtxVdC7pBQM

lstoddOP6d ago

Yes, and those small engines might work for a bit, but then they just burn out, this is inevitable.

If you build an A380 like here you sure don't want to use them unless you want to film it burning down spectacularly.

dylan6046d ago

Sounds perfect for Hollywood practical effects vs boring CG

1 more reply

j / k navigate · click thread line to collapse