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JetZero

jetzero.aero

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181–190 of 277 posts

Re: JetZero

#181

Post by wiz21c »

wxw wrote: post #35

Haven't heard of this company before. A good synopsis I dug up in their fundraising announcement: > JetZero, co-founded in 2020 by start-up veteran Tom O’Leary and aerospace legend Mark Page, is developing the world’s first commercial all-wing airplane. With up to 50% better fuel efficiency and lower carbon emissions compared to existing commercial airliners, JetZero's Z4 will offer the aviation industry a clear path…

"A clear path to zero": what a joke. It will be 25% less fuel, 75% SAF which are nowhere close (how will one grow enough without fertilizers ?), or worse, hydrogen which is even more nowhere close (how much energy you need to produce H2 ?).

just ditch the plane. That will be so much money you can invest in net-positive technologies.

Re: JetZero

#182

Post by conorcleary »

wiz21c wrote: post #181
wxw wrote: post #35

Haven't heard of this company before. A good synopsis I dug up in their fundraising announcement: > JetZero, co-founded in 2020 by start-up veteran Tom O’Leary and aerospace legend Mark Page, is developing the world’s first commercial all-wing airplane. With up to 50% better fuel efficiency and lower carbon emissions compared to existing commercial airliners, JetZero's Z4 will offer the aviation industry a clear path…

"A clear path to zero": what a joke. It will be 25% less fuel, 75% SAF which are nowhere close (how will one grow enough without fertilizers ?), or worse, hydrogen which is even more nowhere close (how much energy you need to produce H2 ?). just ditch the plane. That will be so much money you can invest in net-positive technologies.

If the design is more efficient, then eventually the fuel you put into it can be replaced by your magic solution.

Re: JetZero

#183

Post by cassepipe »

I love how the last image of the landing page is a model of the most efficient plane ever designed on a pole attached to what may be the least efficient vehicle ever made, the infamous US tax-loophole-pick-up truck

Re: JetZero

#184

Post by cassepipe »

conorcleary wrote: post #182
wiz21c wrote: post #181

Earlier quoted context omitted.

"A clear path to zero": what a joke. It will be 25% less fuel, 75% SAF which are nowhere close (how will one grow enough without fertilizers ?), or worse, hydrogen which is even more nowhere close (how much energy you need to produce H2 ?). just ditch the plane. That will be so much money you can invest in net-positive technologies.

If the design is more efficient, then eventually the fuel you put into it can be replaced by your magic solution.

Except there is another issue, how many people do you fit in this shape ? If you can only fly 30 people that's not very efficient as it would mean more flights.

Also I believe the further away you are from the rotation axis of the plane where it turns left or right, the more unpleasant your flight may be

Re: JetZero

#185

Post by FrustratedMonky »

cassepipe wrote: post #183

I love how the last image of the landing page is a model of the most efficient plane ever designed on a pole attached to what may be the least efficient vehicle ever made, the infamous US tax-loophole-pick-up truck

I'm interested in what you are referring to. Do you have link to this truck, the story..

Re: JetZero

#186

Post by gertrunde »

wxw wrote: post #35

Haven't heard of this company before. A good synopsis I dug up in their fundraising announcement: > JetZero, co-founded in 2020 by start-up veteran Tom O’Leary and aerospace legend Mark Page, is developing the world’s first commercial all-wing airplane. With up to 50% better fuel efficiency and lower carbon emissions compared to existing commercial airliners, JetZero's Z4 will offer the aviation industry a clear path…

I think the more commonly used term is Blended Wing Body.

(https://en.wikipedia.org/wiki/Blended_wing_body)

(And actually, now I've just noticed they do use the term further down in the body of the text).

Re: JetZero

#187

Post by mlrtime »

cassepipe wrote: post #183

I love how the last image of the landing page is a model of the most efficient plane ever designed on a pole attached to what may be the least efficient vehicle ever made, the infamous US tax-loophole-pick-up truck

You mean the infamous best selling truck of all time globally? The vehicle that actual working people use everyday? Just because you see a few people use them not for work doesn't really mean anything.

Re: JetZero

#188

Post by cassepipe »

dr_dshiv wrote: post #178
ZeroGravitas wrote: post #113

Tangentially related Good news: You can avoid about half the greenhouse effects of flight by slightly changing the flight plan to avoid cloud forming regions Bad news: this generally wasn't counted before and when counted roughly doubles the impact so in some senses you're back to where you started. But it's a much lower hanging fruit than anything else and as yet we're not doing it.

So, getting better at manipulating clouds will help prevent planetary heating. I assume there is a huge amount of public support for this scientific research?

No, you misunderstood what this is about

Re: JetZero

#189

Post by FrustratedMonky »

singular_atomic wrote: post #111
iamwil wrote: post #103

What I really want, is a plane that can load passengers like containers--or like a rollercoaster car. Of course, it should be comfortable. I just mean that the passenger compartment should be modular. So you can put your luggage in and get settled while sitting in the airport, and then when the plane comes in, it just side-loads everyone all at once. Once landed, it just slides everyone off, and you can just I know t…

that sounds like an absolute nightmare haha

An engineering nightmare. But as a passenger, it might be nice. Can take time getting on to the container and settled, and then the whole container gets loaded.

Re: JetZero

#190

Post by mlrtime »

dash2 wrote: post #160
kubafu wrote: post #128

Earlier quoted context omitted.

A lot of us is avoiding more by choosing not to fly.

I hope I'm not overinterpreting, but I get the sense that you think that's morally better than simply avoiding contrails. If so then this is surely a mistake! While an individual who imposes heavy costs on himself to do something socially valuable is certainly demonstrating commitment to the cause, the best solution for society is the one with the lowest costs.

Hint: It's performative. The people who are actually doing this don't come to HN to announce it.
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