A hydrogen-powered air taxi flew 523 miles emitting only water vapor
A hydrogen-powered air taxi flew 523 miles emitting only water vapor
"Joby took a pre-production prototype of one of its battery-electric aircraft and outfitted it with a liquid hydrogen fuel tank and fuel system. The modified, hydrogen-powered VTOL was able to complete a 523 mile flight above Marina, California..."
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Well, it's a demonstration of hydrogen utilization. And if it spares ice vehicle trips, it's just fine.
taxi-plane
This will never take off.
I see what you did there.
Please do explain how is less harmful to drive in a diesel tractor around.
Where as with a hover-cab, before you get to theoreticaly use zoro-emission fuel, you first have to make it
This sounds almost like tractors are born in a shed, not made in a factory.
digging up and smelting rare metals
Not so much and less with newer battery types
shipping parts all over the world and churning them out in coal-burning factories.
Again, see first comment. Out of curiosity, what are coal-burning factories anyway?
You’ll be dead before your tractor catches up the starting costs.
While tractors are relatively cheap, you fail to see all the disadvantages with them it seems. Like fuel grows in a fuel pump stations and I'm sure they are very beneficial to air you breath, not counting co2 emissions and many other negative aspects. Let's do a test. I'll lie down next to e-vehicle exhaust and you'll do the same next to a tractor exhaust or any other ICE vehicle of your choice. Let's do that for 5 minutes while engines are running.
And how are we doing with consuming less? Oh, wait, I know - consumption of oil and coal is at all time high.
Nah, not very fine. I wonder if it could be less eco-friendly to run something like this over an ICE car simply due to the massive energy demands of such a vehicle and the losses on energy to hydrogen to energy conversion.
Flying transportation is only reasonable at a large scale and high speeds, which is not a characteristic of an air taxi.
Also, better use hydrogen-powered car then.
While hydrogen is expensive to produce, it can be produced from reusable sources or surplus energy which makes it way cheaper and way cleaner. Also solves energy storage. A side note: ICE is around 20% efficient. I'm also sure that flying in choppers and private jets is not that clean and efficient. And yes, cars would be better, but both can coexist.
True, but that would require building expensive infrastructure that would sit idle for most of the time while we wait for the surplus - assuming we talk intermittent renewables.
Sure enough, hydrogen fuel cell is cleaner than ICE, my objection was to the form of transportation that might require so much power an ICE car would be a better alternative (but not an ICE air taxi, to be clear)
Cars would be better, but both can coexist
From an ecological perspective, they can not, and that's what this "invention" pretends to be about. Also, cars too are far from perfect, but at least better than this monstrosity